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qubes-linux-kernel/patches.xen/xen3-patch-2.6.24
Joanna Rutkowska d1298d1dfb Keeps patches unpacked for easier history browsing
2010-07-07 13:12:45 +02:00

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From: www.kernel.org
Subject: Update to 2.6.24
Patch-mainline: 2.6.24
Automatically created from "patches.kernel.org/patch-2.6.24" by xen-port-patches.py
Acked-by: jbeulich@novell.com
--- head-2010-05-25.orig/arch/x86/Kconfig 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/Kconfig 2010-03-24 15:10:29.000000000 +0100
@@ -76,15 +76,16 @@ config GENERIC_CMOS_UPDATE
config CLOCKSOURCE_WATCHDOG
def_bool y
- depends on !X86_XEN
+ depends on !XEN
config GENERIC_CLOCKEVENTS
def_bool y
- depends on !X86_XEN
+ depends on !XEN
config GENERIC_CLOCKEVENTS_BROADCAST
def_bool y
- depends on X86_64 || (X86_32 && X86_LOCAL_APIC && !X86_XEN)
+ depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
+ depends on !XEN
config LOCKDEP_SUPPORT
def_bool y
@@ -240,12 +241,12 @@ config X86_TRAMPOLINE
config X86_NO_TSS
bool
- depends on X86_XEN || X86_64_XEN
+ depends on XEN
default y
config X86_NO_IDT
bool
- depends on X86_XEN || X86_64_XEN
+ depends on XEN
default y
config X86_32_LAZY_GS
@@ -327,6 +328,7 @@ config X86_MPPARSE
config X86_XEN
bool "Xen-compatible"
+ depends on X86_32
select XEN
select X86_PAE
select X86_UP_APIC if !SMP && XEN_PRIVILEGED_GUEST
@@ -367,6 +369,7 @@ endif
config X86_64_XEN
bool "Enable Xen compatible kernel"
+ depends on X86_64
select XEN
select SWIOTLB
help
@@ -702,7 +705,7 @@ source "arch/x86/Kconfig.cpu"
config HPET_TIMER
def_bool X86_64
prompt "HPET Timer Support" if X86_32
- depends on !X86_XEN && !X86_64_XEN
+ depends on !XEN
---help---
Use the IA-PC HPET (High Precision Event Timer) to manage
time in preference to the PIT and RTC, if a HPET is
@@ -1056,7 +1059,7 @@ config I8K
config X86_REBOOTFIXUPS
bool "Enable X86 board specific fixups for reboot"
- depends on X86_32 && !X86_XEN
+ depends on X86_32 && !XEN
---help---
This enables chipset and/or board specific fixups to be done
in order to get reboot to work correctly. This is only needed on
@@ -1454,7 +1457,7 @@ config X86_RESERVE_LOW_64K
config MATH_EMULATION
bool
prompt "Math emulation" if X86_32
- depends on !X86_XEN
+ depends on !XEN
---help---
Linux can emulate a math coprocessor (used for floating point
operations) if you don't have one. 486DX and Pentium processors have
@@ -1828,6 +1831,7 @@ endmenu
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
depends on X86_64 || (X86_32 && HIGHMEM)
+ depends on !XEN
config ARCH_ENABLE_MEMORY_HOTREMOVE
def_bool y
@@ -2019,7 +2023,7 @@ choice
config PCI_GOBIOS
bool "BIOS"
- depends on !X86_XEN
+ depends on !XEN
config PCI_GOMMCONFIG
bool "MMConfig"
@@ -2070,7 +2074,7 @@ config PCI_MMCONFIG
config XEN_PCIDEV_FRONTEND
bool "Xen PCI Frontend" if X86_64
- depends on PCI && ((X86_XEN && (PCI_GOXEN_FE || PCI_GOANY)) || X86_64_XEN)
+ depends on PCI && XEN && (PCI_GOXEN_FE || PCI_GOANY || X86_64)
select HOTPLUG
default y
help
@@ -2086,7 +2090,7 @@ config XEN_PCIDEV_FE_DEBUG
config DMAR
bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
- depends on PCI_MSI && ACPI && EXPERIMENTAL
+ depends on PCI_MSI && ACPI && !XEN && EXPERIMENTAL
help
DMA remapping (DMAR) devices support enables independent address
translations for Direct Memory Access (DMA) from devices.
--- head-2010-05-25.orig/arch/x86/Makefile 2010-03-24 15:01:37.000000000 +0100
+++ head-2010-05-25/arch/x86/Makefile 2010-03-24 15:10:29.000000000 +0100
@@ -156,8 +156,8 @@ BOOT_TARGETS = bzlilo bzdisk fdimage fdi
PHONY += bzImage vmlinuz $(BOOT_TARGETS)
ifdef CONFIG_XEN
-CPPFLAGS := -D__XEN_INTERFACE_VERSION__=$(CONFIG_XEN_INTERFACE_VERSION) \
- -Iinclude$(if $(KBUILD_SRC),2)/asm/mach-xen $(CPPFLAGS)
+KBUILD_CPPFLAGS := -D__XEN_INTERFACE_VERSION__=$(CONFIG_XEN_INTERFACE_VERSION) \
+ -Iinclude$(if $(KBUILD_SRC),2)/asm/mach-xen $(KBUILD_CPPFLAGS)
ifdef CONFIG_X86_64
LDFLAGS_vmlinux := -e startup_64
@@ -171,6 +171,8 @@ KBUILD_IMAGE := $(boot)/vmlinuz
vmlinuz: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
+ $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
+ $(Q)ln -fsn ../../x86/boot/$@ $(objtree)/arch/$(UTS_MACHINE)/boot/$@
else
# Default kernel to build
all: bzImage
--- head-2010-05-25.orig/arch/x86/ia32/ia32entry-xen.S 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/ia32/ia32entry-xen.S 2010-03-24 15:10:29.000000000 +0100
@@ -125,20 +125,16 @@ sysenter_do_call:
jmp int_ret_from_sys_call
sysenter_tracesys:
+ xchgl %r9d,%ebp
SAVE_REST
CLEAR_RREGS
+ movq %r9,R9(%rsp)
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
- movl %ebp, %ebp
- /* no need to do an access_ok check here because rbp has been
- 32bit zero extended */
-1: movl (%rbp),%r9d
- .section __ex_table,"a"
- .quad 1b,ia32_badarg
- .previous
+ xchgl %ebp,%r9d
jmp sysenter_do_call
CFI_ENDPROC
ENDPROC(ia32_sysenter_target)
@@ -200,20 +196,17 @@ cstar_do_call:
jmp int_ret_from_sys_call
cstar_tracesys:
+ xchgl %r9d,%ebp
SAVE_REST
CLEAR_RREGS
+ movq %r9,R9(%rsp)
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
+ xchgl %ebp,%r9d
movl RSP-ARGOFFSET(%rsp), %r8d
- /* no need to do an access_ok check here because r8 has been
- 32bit zero extended */
-1: movl (%r8),%r9d
- .section __ex_table,"a"
- .quad 1b,ia32_badarg
- .previous
jmp cstar_do_call
END(ia32_cstar_target)
--- head-2010-05-25.orig/arch/x86/kernel/Makefile 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/Makefile 2010-03-24 15:10:29.000000000 +0100
@@ -141,4 +141,4 @@ endif
disabled-obj-$(CONFIG_XEN) := early-quirks.o hpet.o i8253.o i8259_$(BITS).o reboot.o \
smpboot_$(BITS).o tsc_$(BITS).o tsc_sync.o
disabled-obj-$(CONFIG_XEN_UNPRIVILEGED_GUEST) += mpparse_64.o
-%/head_64.o %/head_64.s: $(if $(CONFIG_XEN),EXTRA_AFLAGS,dummy) :=
+%/head_64.o %/head_64.s: asflags-$(CONFIG_XEN) :=
--- head-2010-05-25.orig/arch/x86/kernel/acpi/sleep_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/acpi/sleep_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -90,7 +90,7 @@ __setup("acpi_sleep=", acpi_sleep_setup)
/* Ouch, we want to delete this. We already have better version in userspace, in
s2ram from suspend.sf.net project */
-static __init int reset_videomode_after_s3(struct dmi_system_id *d)
+static __init int reset_videomode_after_s3(const struct dmi_system_id *d)
{
acpi_realmode_flags |= 2;
return 0;
--- head-2010-05-25.orig/arch/x86/kernel/acpi/sleep_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/acpi/sleep_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -123,6 +123,3 @@ static int __init acpi_sleep_setup(char
__setup("acpi_sleep=", acpi_sleep_setup);
#endif /* CONFIG_ACPI_PV_SLEEP */
-void acpi_pci_link_exit(void)
-{
-}
--- head-2010-05-25.orig/arch/x86/kernel/cpu/common-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/cpu/common-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -214,7 +214,7 @@ static void __cpuinit get_cpu_vendor(str
static int __init x86_fxsr_setup(char * s)
{
- /* Tell all the other CPU's to not use it... */
+ /* Tell all the other CPUs to not use it... */
disable_x86_fxsr = 1;
/*
--- head-2010-05-25.orig/arch/x86/kernel/e820_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/e820_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -52,6 +52,13 @@ struct resource code_resource = {
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};
+struct resource bss_resource = {
+ .name = "Kernel bss",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
static struct resource system_rom_resource = {
.name = "System ROM",
.start = 0xf0000,
@@ -266,7 +273,9 @@ static struct e820map machine_e820;
* and also for regions reported as reserved by the e820.
*/
static void __init
-legacy_init_iomem_resources(struct resource *code_resource, struct resource *data_resource)
+legacy_init_iomem_resources(struct resource *code_resource,
+ struct resource *data_resource,
+ struct resource *bss_resource)
{
int i;
@@ -300,9 +309,11 @@ legacy_init_iomem_resources(struct resou
#ifndef CONFIG_XEN
request_resource(res, code_resource);
request_resource(res, data_resource);
+ request_resource(res, bss_resource);
#endif
#ifdef CONFIG_KEXEC
- request_resource(res, &crashk_res);
+ if (crashk_res.start != crashk_res.end)
+ request_resource(res, &crashk_res);
#ifdef CONFIG_XEN
xen_machine_kexec_register_resources(res);
#endif
@@ -329,9 +340,11 @@ static int __init request_standard_resou
printk("Setting up standard PCI resources\n");
if (efi_enabled)
- efi_initialize_iomem_resources(&code_resource, &data_resource);
+ efi_initialize_iomem_resources(&code_resource,
+ &data_resource, &bss_resource);
else
- legacy_init_iomem_resources(&code_resource, &data_resource);
+ legacy_init_iomem_resources(&code_resource,
+ &data_resource, &bss_resource);
/* EFI systems may still have VGA */
request_resource(&iomem_resource, &video_ram_resource);
@@ -761,7 +774,7 @@ void __init e820_register_memory(void)
#define e820 machine_e820
#endif
/*
- * Search for the bigest gap in the low 32 bits of the e820
+ * Search for the biggest gap in the low 32 bits of the e820
* memory space.
*/
last = 0x100000000ull;
--- head-2010-05-25.orig/arch/x86/kernel/e820_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/e820_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -24,7 +24,7 @@
#include <asm/page.h>
#include <asm/e820.h>
#include <asm/proto.h>
-#include <asm/bootsetup.h>
+#include <asm/setup.h>
#include <asm/sections.h>
#include <xen/interface/memory.h>
@@ -53,7 +53,7 @@ unsigned long end_pfn_map;
*/
static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
-extern struct resource code_resource, data_resource;
+extern struct resource code_resource, data_resource, bss_resource;
/* Check for some hardcoded bad areas that early boot is not allowed to touch */
static inline int bad_addr(unsigned long *addrp, unsigned long size)
@@ -75,10 +75,15 @@ static inline int bad_addr(unsigned long
/* initrd */
#ifdef CONFIG_BLK_DEV_INITRD
- if (LOADER_TYPE && INITRD_START && last >= INITRD_START &&
- addr < INITRD_START+INITRD_SIZE) {
- *addrp = PAGE_ALIGN(INITRD_START + INITRD_SIZE);
- return 1;
+ if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
+ unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
+ unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
+ unsigned long ramdisk_end = ramdisk_image+ramdisk_size;
+
+ if (last >= ramdisk_image && addr < ramdisk_end) {
+ *addrp = PAGE_ALIGN(ramdisk_end);
+ return 1;
+ }
}
#endif
/* kernel code */
@@ -251,6 +256,7 @@ void __init e820_reserve_resources(struc
#ifndef CONFIG_XEN
request_resource(res, &code_resource);
request_resource(res, &data_resource);
+ request_resource(res, &bss_resource);
#endif
#ifdef CONFIG_KEXEC
if (crashk_res.start != crashk_res.end)
@@ -661,8 +667,8 @@ void __init setup_memory_region(void)
* Otherwise fake a memory map; one section from 0k->640k,
* the next section from 1mb->appropriate_mem_k
*/
- sanitize_e820_map(E820_MAP, &E820_MAP_NR);
- if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0)
+ sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
+ if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries) < 0)
early_panic("Cannot find a valid memory map");
printk(KERN_INFO "BIOS-provided physical RAM map:\n");
e820_print_map("BIOS-e820");
@@ -847,3 +853,22 @@ __init void e820_setup_gap(struct e820en
printk(KERN_INFO "Allocating PCI resources starting at %lx (gap: %lx:%lx)\n",
pci_mem_start, gapstart, gapsize);
}
+
+int __init arch_get_ram_range(int slot, u64 *addr, u64 *size)
+{
+ int i;
+
+ if (slot < 0 || slot >= e820.nr_map)
+ return -1;
+ for (i = slot; i < e820.nr_map; i++) {
+ if (e820.map[i].type != E820_RAM)
+ continue;
+ break;
+ }
+ if (i == e820.nr_map || e820.map[i].addr > (max_pfn << PAGE_SHIFT))
+ return -1;
+ *addr = e820.map[i].addr;
+ *size = min_t(u64, e820.map[i].size + e820.map[i].addr,
+ max_pfn << PAGE_SHIFT) - *addr;
+ return i + 1;
+}
--- head-2010-05-25.orig/arch/x86/kernel/early_printk-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/early_printk-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -6,15 +6,10 @@
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/fcntl.h>
-
-/* Simple VGA output */
-
-#ifdef __i386__
#include <asm/setup.h>
-#else
-#include <asm/bootsetup.h>
-#endif
+
#ifndef CONFIG_XEN
+/* Simple VGA output */
#define VGABASE (__ISA_IO_base + 0xb8000)
static int max_ypos = 25, max_xpos = 80;
@@ -264,10 +259,10 @@ static int __init setup_early_printk(cha
early_console = &early_serial_console;
} else if (!strncmp(buf, "vga", 3)) {
#ifndef CONFIG_XEN
- && SCREEN_INFO.orig_video_isVGA == 1) {
- max_xpos = SCREEN_INFO.orig_video_cols;
- max_ypos = SCREEN_INFO.orig_video_lines;
- current_ypos = SCREEN_INFO.orig_y;
+ && boot_params.screen_info.orig_video_isVGA == 1) {
+ max_xpos = boot_params.screen_info.orig_video_cols;
+ max_ypos = boot_params.screen_info.orig_video_lines;
+ current_ypos = boot_params.screen_info.orig_y;
#endif
early_console = &early_vga_console;
} else if (!strncmp(buf, "simnow", 6)) {
--- head-2010-05-25.orig/arch/x86/kernel/entry_32-xen.S 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/entry_32-xen.S 2010-03-24 15:10:29.000000000 +0100
@@ -254,6 +254,7 @@ check_userspace:
jb resume_kernel # not returning to v8086 or userspace
ENTRY(resume_userspace)
+ LOCKDEP_SYS_EXIT
DISABLE_INTERRUPTS(CLBR_ANY) # make sure we don't miss an interrupt
# setting need_resched or sigpending
# between sampling and the iret
@@ -341,6 +342,7 @@ sysenter_past_esp:
jae syscall_badsys
call *sys_call_table(,%eax,4)
movl %eax,PT_EAX(%esp)
+ LOCKDEP_SYS_EXIT
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
movl TI_flags(%ebp), %ecx
@@ -406,6 +408,7 @@ syscall_call:
call *sys_call_table(,%eax,4)
movl %eax,PT_EAX(%esp) # store the return value
syscall_exit:
+ LOCKDEP_SYS_EXIT
DISABLE_INTERRUPTS(CLBR_ANY) # make sure we don't miss an interrupt
# setting need_resched or sigpending
# between sampling and the iret
@@ -478,7 +481,7 @@ ldt_ss:
* is still available to implement the setting of the high
* 16-bits in the INTERRUPT_RETURN paravirt-op.
*/
- cmpl $0, paravirt_ops+PARAVIRT_enabled
+ cmpl $0, pv_info+PARAVIRT_enabled
jne restore_nocheck
#endif
@@ -540,6 +543,7 @@ work_pending:
jz work_notifysig
work_resched:
call schedule
+ LOCKDEP_SYS_EXIT
DISABLE_INTERRUPTS(CLBR_ANY) # make sure we don't miss an interrupt
# setting need_resched or sigpending
# between sampling and the iret
@@ -1268,6 +1272,6 @@ ENTRY(kernel_thread_helper)
ENDPROC(kernel_thread_helper)
.section .rodata,"a"
-#include "syscall_table.S"
+#include "syscall_table_32.S"
syscall_table_size=(.-sys_call_table)
--- head-2010-05-25.orig/arch/x86/kernel/entry_64-xen.S 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/entry_64-xen.S 2010-03-24 15:10:29.000000000 +0100
@@ -57,7 +57,7 @@
#include <xen/interface/arch-x86_64.h>
#include <xen/interface/features.h>
-#include "xen_entry.S"
+#include "xen_entry_64.S"
.code64
@@ -275,6 +275,7 @@ ret_from_sys_call:
movl $_TIF_ALLWORK_MASK,%edi
/* edi: flagmask */
sysret_check:
+ LOCKDEP_SYS_EXIT
GET_THREAD_INFO(%rcx)
XEN_BLOCK_EVENTS(%rsi)
TRACE_IRQS_OFF
@@ -365,6 +366,7 @@ int_ret_from_sys_call:
movl $_TIF_ALLWORK_MASK,%edi
/* edi: mask to check */
int_with_check:
+ LOCKDEP_SYS_EXIT_IRQ
GET_THREAD_INFO(%rcx)
movl threadinfo_flags(%rcx),%edx
andl %edi,%edx
@@ -516,11 +518,12 @@ END(stub_rt_sigreturn)
retint_check:
CFI_DEFAULT_STACK adj=1
+ LOCKDEP_SYS_EXIT_IRQ
movl threadinfo_flags(%rcx),%edx
andl %edi,%edx
CFI_REMEMBER_STATE
jnz retint_careful
-retint_restore_args:
+retint_restore_args: /* return to kernel space */
movl EFLAGS-REST_SKIP(%rsp), %eax
shr $9, %eax # EAX[0] == IRET_EFLAGS.IF
XEN_GET_VCPU_INFO(%rsi)
@@ -841,7 +844,7 @@ error_call_handler:
movq ORIG_RAX(%rsp),%rsi # get error code
movq $-1,ORIG_RAX(%rsp)
call *%rax
-error_exit:
+error_exit:
RESTORE_REST
/* cli */
XEN_BLOCK_EVENTS(%rsi)
@@ -849,14 +852,11 @@ error_exit:
GET_THREAD_INFO(%rcx)
testb $3,CS-ARGOFFSET(%rsp)
jz retint_kernel
+ LOCKDEP_SYS_EXIT_IRQ
movl threadinfo_flags(%rcx),%edx
movl $_TIF_WORK_MASK,%edi
andl %edi,%edx
jnz retint_careful
- /*
- * The iret might restore flags:
- */
- TRACE_IRQS_IRETQ
jmp retint_restore_args
#if 0
@@ -1071,7 +1071,7 @@ child_rip:
movq %rsi, %rdi
call *%rax
# exit
- xorl %edi, %edi
+ mov %eax, %edi
call do_exit
CFI_ENDPROC
ENDPROC(child_rip)
--- head-2010-05-25.orig/arch/x86/kernel/head64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/head64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,5 +1,5 @@
/*
- * linux/arch/x86_64/kernel/head64.c -- prepare to run common code
+ * prepare to run common code
*
* Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
*
@@ -21,7 +21,6 @@
#include <asm/processor.h>
#include <asm/proto.h>
#include <asm/smp.h>
-#include <asm/bootsetup.h>
#include <asm/setup.h>
#include <asm/desc.h>
#include <asm/pgtable.h>
@@ -47,27 +46,16 @@ static void __init clear_bss(void)
}
#endif
-#define NEW_CL_POINTER 0x228 /* Relative to real mode data */
-#define OLD_CL_MAGIC_ADDR 0x20
-#define OLD_CL_MAGIC 0xA33F
-#define OLD_CL_OFFSET 0x22
-
static void __init copy_bootdata(char *real_mode_data)
{
#ifndef CONFIG_XEN
- unsigned long new_data;
char * command_line;
- memcpy(x86_boot_params, real_mode_data, BOOT_PARAM_SIZE);
- new_data = *(u32 *) (x86_boot_params + NEW_CL_POINTER);
- if (!new_data) {
- if (OLD_CL_MAGIC != *(u16 *)(real_mode_data + OLD_CL_MAGIC_ADDR)) {
- return;
- }
- new_data = __pa(real_mode_data) + *(u16 *)(real_mode_data + OLD_CL_OFFSET);
+ memcpy(&boot_params, real_mode_data, sizeof boot_params);
+ if (boot_params.hdr.cmd_line_ptr) {
+ command_line = __va(boot_params.hdr.cmd_line_ptr);
+ memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
}
- command_line = __va(new_data);
- memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
#else
int max_cmdline;
@@ -117,7 +105,7 @@ void __init x86_64_start_kernel(char * r
for (i = 0; i < IDT_ENTRIES; i++)
set_intr_gate(i, early_idt_handler);
- asm volatile("lidt %0" :: "m" (idt_descr));
+ load_idt((const struct desc_ptr *)&idt_descr);
#endif
early_printk("Kernel alive\n");
--- head-2010-05-25.orig/arch/x86/kernel/io_apic_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/io_apic_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -427,7 +427,7 @@ static struct irq_cpu_info {
#define IRQ_ALLOWED(cpu, allowed_mask) cpu_isset(cpu, allowed_mask)
-#define CPU_TO_PACKAGEINDEX(i) (first_cpu(cpu_sibling_map[i]))
+#define CPU_TO_PACKAGEINDEX(i) (first_cpu(per_cpu(cpu_sibling_map, i)))
static cpumask_t balance_irq_affinity[NR_IRQS] = {
[0 ... NR_IRQS-1] = CPU_MASK_ALL
@@ -633,7 +633,7 @@ tryanotherirq:
imbalance = move_this_load;
- /* For physical_balance case, we accumlated both load
+ /* For physical_balance case, we accumulated both load
* values in the one of the siblings cpu_irq[],
* to use the same code for physical and logical processors
* as much as possible.
@@ -647,7 +647,7 @@ tryanotherirq:
* (A+B)/2 vs B
*/
load = CPU_IRQ(min_loaded) >> 1;
- for_each_cpu_mask(j, cpu_sibling_map[min_loaded]) {
+ for_each_cpu_mask(j, per_cpu(cpu_sibling_map, min_loaded)) {
if (load > CPU_IRQ(j)) {
/* This won't change cpu_sibling_map[min_loaded] */
load = CPU_IRQ(j);
@@ -1018,7 +1018,7 @@ static int EISA_ELCR(unsigned int irq)
#define default_MCA_trigger(idx) (1)
#define default_MCA_polarity(idx) (0)
-static int __init MPBIOS_polarity(int idx)
+static int MPBIOS_polarity(int idx)
{
int bus = mp_irqs[idx].mpc_srcbus;
int polarity;
@@ -1347,6 +1347,11 @@ static void __init setup_IO_APIC_irqs(vo
continue;
}
+ if (!first_notcon) {
+ apic_printk(APIC_VERBOSE, " not connected.\n");
+ first_notcon = 1;
+ }
+
entry.trigger = irq_trigger(idx);
entry.polarity = irq_polarity(idx);
@@ -1936,13 +1941,16 @@ __setup("no_timer_check", notimercheck);
static int __init timer_irq_works(void)
{
unsigned long t1 = jiffies;
+ unsigned long flags;
if (no_timer_check)
return 1;
+ local_save_flags(flags);
local_irq_enable();
/* Let ten ticks pass... */
mdelay((10 * 1000) / HZ);
+ local_irq_restore(flags);
/*
* Expect a few ticks at least, to be sure some possible
@@ -2223,6 +2231,9 @@ static inline void __init check_timer(vo
{
int apic1, pin1, apic2, pin2;
int vector;
+ unsigned long flags;
+
+ local_irq_save(flags);
/*
* get/set the timer IRQ vector:
@@ -2268,7 +2279,7 @@ static inline void __init check_timer(vo
}
if (disable_timer_pin_1 > 0)
clear_IO_APIC_pin(0, pin1);
- return;
+ goto out;
}
clear_IO_APIC_pin(apic1, pin1);
printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to "
@@ -2291,7 +2302,7 @@ static inline void __init check_timer(vo
if (nmi_watchdog == NMI_IO_APIC) {
setup_nmi();
}
- return;
+ goto out;
}
/*
* Cleanup, just in case ...
@@ -2315,7 +2326,7 @@ static inline void __init check_timer(vo
if (timer_irq_works()) {
printk(" works.\n");
- return;
+ goto out;
}
apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector);
printk(" failed.\n");
@@ -2331,11 +2342,13 @@ static inline void __init check_timer(vo
if (timer_irq_works()) {
printk(" works.\n");
- return;
+ goto out;
}
printk(" failed :(.\n");
panic("IO-APIC + timer doesn't work! Boot with apic=debug and send a "
"report. Then try booting with the 'noapic' option");
+out:
+ local_irq_restore(flags);
}
#else
int timer_uses_ioapic_pin_0 = 0;
@@ -2353,6 +2366,14 @@ int timer_uses_ioapic_pin_0 = 0;
void __init setup_IO_APIC(void)
{
+#ifndef CONFIG_XEN
+ int i;
+
+ /* Reserve all the system vectors. */
+ for (i = FIRST_SYSTEM_VECTOR; i < NR_VECTORS; i++)
+ set_bit(i, used_vectors);
+#endif
+
enable_IO_APIC();
if (acpi_ioapic)
@@ -2542,7 +2563,7 @@ void destroy_irq(unsigned int irq)
#endif /* CONFIG_XEN */
/*
- * MSI mesage composition
+ * MSI message composition
*/
#if defined(CONFIG_PCI_MSI) && !defined(CONFIG_XEN)
static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_msg *msg)
@@ -2899,6 +2920,25 @@ int io_apic_set_pci_routing (int ioapic,
return 0;
}
+int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
+{
+ int i;
+
+ if (skip_ioapic_setup)
+ return -1;
+
+ for (i = 0; i < mp_irq_entries; i++)
+ if (mp_irqs[i].mpc_irqtype == mp_INT &&
+ mp_irqs[i].mpc_srcbusirq == bus_irq)
+ break;
+ if (i >= mp_irq_entries)
+ return -1;
+
+ *trigger = irq_trigger(i);
+ *polarity = irq_polarity(i);
+ return 0;
+}
+
#endif /* CONFIG_ACPI */
static int __init parse_disable_timer_pin_1(char *arg)
--- head-2010-05-25.orig/arch/x86/kernel/io_apic_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/io_apic_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -31,6 +31,7 @@
#include <linux/sysdev.h>
#include <linux/msi.h>
#include <linux/htirq.h>
+#include <linux/dmar.h>
#ifdef CONFIG_ACPI
#include <acpi/acpi_bus.h>
#endif
@@ -584,7 +585,7 @@ int IO_APIC_get_PCI_irq_vector(int bus,
#define default_PCI_trigger(idx) (1)
#define default_PCI_polarity(idx) (1)
-static int __init MPBIOS_polarity(int idx)
+static int MPBIOS_polarity(int idx)
{
int bus = mp_irqs[idx].mpc_srcbus;
int polarity;
@@ -871,6 +872,10 @@ static void __init setup_IO_APIC_irqs(vo
apic_printk(APIC_VERBOSE, ", %d-%d", mp_ioapics[apic].mpc_apicid, pin);
continue;
}
+ if (!first_notcon) {
+ apic_printk(APIC_VERBOSE, " not connected.\n");
+ first_notcon = 1;
+ }
irq = pin_2_irq(idx, apic, pin);
add_pin_to_irq(irq, apic, pin);
@@ -881,7 +886,7 @@ static void __init setup_IO_APIC_irqs(vo
}
if (!first_notcon)
- apic_printk(APIC_VERBOSE," not connected.\n");
+ apic_printk(APIC_VERBOSE, " not connected.\n");
}
#ifndef CONFIG_XEN
@@ -1277,10 +1282,13 @@ void disable_IO_APIC(void)
static int __init timer_irq_works(void)
{
unsigned long t1 = jiffies;
+ unsigned long flags;
+ local_save_flags(flags);
local_irq_enable();
/* Let ten ticks pass... */
mdelay((10 * 1000) / HZ);
+ local_irq_restore(flags);
/*
* Expect a few ticks at least, to be sure some possible
@@ -1655,6 +1663,9 @@ static inline void check_timer(void)
{
struct irq_cfg *cfg = irq_cfg + 0;
int apic1, pin1, apic2, pin2;
+ unsigned long flags;
+
+ local_irq_save(flags);
/*
* get/set the timer IRQ vector:
@@ -1696,7 +1707,7 @@ static inline void check_timer(void)
}
if (disable_timer_pin_1 > 0)
clear_IO_APIC_pin(0, pin1);
- return;
+ goto out;
}
clear_IO_APIC_pin(apic1, pin1);
apic_printk(APIC_QUIET,KERN_ERR "..MP-BIOS bug: 8254 timer not "
@@ -1718,7 +1729,7 @@ static inline void check_timer(void)
if (nmi_watchdog == NMI_IO_APIC) {
setup_nmi();
}
- return;
+ goto out;
}
/*
* Cleanup, just in case ...
@@ -1741,7 +1752,7 @@ static inline void check_timer(void)
if (timer_irq_works()) {
apic_printk(APIC_VERBOSE," works.\n");
- return;
+ goto out;
}
apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | cfg->vector);
apic_printk(APIC_VERBOSE," failed.\n");
@@ -1756,10 +1767,12 @@ static inline void check_timer(void)
if (timer_irq_works()) {
apic_printk(APIC_VERBOSE," works.\n");
- return;
+ goto out;
}
apic_printk(APIC_VERBOSE," failed :(.\n");
panic("IO-APIC + timer doesn't work! Try using the 'noapic' kernel parameter\n");
+out:
+ local_irq_restore(flags);
}
#else
#define check_timer() ((void)0)
@@ -1775,7 +1788,7 @@ __setup("no_timer_check", notimercheck);
/*
*
- * IRQ's that are handled by the PIC in the MPS IOAPIC case.
+ * IRQs that are handled by the PIC in the MPS IOAPIC case.
* - IRQ2 is the cascade IRQ, and cannot be a io-apic IRQ.
* Linux doesn't really care, as it's not actually used
* for any interrupt handling anyway.
@@ -1858,7 +1871,7 @@ static struct sysdev_class ioapic_sysdev
static int __init ioapic_init_sysfs(void)
{
struct sys_device * dev;
- int i, size, error = 0;
+ int i, size, error;
error = sysdev_class_register(&ioapic_sysdev_class);
if (error)
@@ -1867,12 +1880,11 @@ static int __init ioapic_init_sysfs(void
for (i = 0; i < nr_ioapics; i++ ) {
size = sizeof(struct sys_device) + nr_ioapic_registers[i]
* sizeof(struct IO_APIC_route_entry);
- mp_ioapic_data[i] = kmalloc(size, GFP_KERNEL);
+ mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL);
if (!mp_ioapic_data[i]) {
printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
continue;
}
- memset(mp_ioapic_data[i], 0, size);
dev = &mp_ioapic_data[i]->dev;
dev->id = i;
dev->cls = &ioapic_sysdev_class;
@@ -1933,7 +1945,7 @@ void destroy_irq(unsigned int irq)
#endif /* CONFIG_XEN */
/*
- * MSI mesage composition
+ * MSI message composition
*/
#if defined(CONFIG_PCI_MSI) && !defined(CONFIG_XEN)
static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_msg *msg)
@@ -2043,8 +2055,64 @@ void arch_teardown_msi_irq(unsigned int
destroy_irq(irq);
}
-#endif /* CONFIG_PCI_MSI */
+#ifdef CONFIG_DMAR
+#ifdef CONFIG_SMP
+static void dmar_msi_set_affinity(unsigned int irq, cpumask_t mask)
+{
+ struct irq_cfg *cfg = irq_cfg + irq;
+ struct msi_msg msg;
+ unsigned int dest;
+ cpumask_t tmp;
+
+ cpus_and(tmp, mask, cpu_online_map);
+ if (cpus_empty(tmp))
+ return;
+
+ if (assign_irq_vector(irq, mask))
+ return;
+
+ cpus_and(tmp, cfg->domain, mask);
+ dest = cpu_mask_to_apicid(tmp);
+
+ dmar_msi_read(irq, &msg);
+
+ msg.data &= ~MSI_DATA_VECTOR_MASK;
+ msg.data |= MSI_DATA_VECTOR(cfg->vector);
+ msg.address_lo &= ~MSI_ADDR_DEST_ID_MASK;
+ msg.address_lo |= MSI_ADDR_DEST_ID(dest);
+
+ dmar_msi_write(irq, &msg);
+ irq_desc[irq].affinity = mask;
+}
+#endif /* CONFIG_SMP */
+
+struct irq_chip dmar_msi_type = {
+ .name = "DMAR_MSI",
+ .unmask = dmar_msi_unmask,
+ .mask = dmar_msi_mask,
+ .ack = ack_apic_edge,
+#ifdef CONFIG_SMP
+ .set_affinity = dmar_msi_set_affinity,
+#endif
+ .retrigger = ioapic_retrigger_irq,
+};
+
+int arch_setup_dmar_msi(unsigned int irq)
+{
+ int ret;
+ struct msi_msg msg;
+
+ ret = msi_compose_msg(NULL, irq, &msg);
+ if (ret < 0)
+ return ret;
+ dmar_msi_write(irq, &msg);
+ set_irq_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
+ "edge");
+ return 0;
+}
+#endif
+#endif /* CONFIG_PCI_MSI */
/*
* Hypertransport interrupt support
*/
@@ -2177,8 +2245,27 @@ int io_apic_set_pci_routing (int ioapic,
return 0;
}
-#endif /* CONFIG_ACPI */
+int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
+{
+ int i;
+
+ if (skip_ioapic_setup)
+ return -1;
+
+ for (i = 0; i < mp_irq_entries; i++)
+ if (mp_irqs[i].mpc_irqtype == mp_INT &&
+ mp_irqs[i].mpc_srcbusirq == bus_irq)
+ break;
+ if (i >= mp_irq_entries)
+ return -1;
+
+ *trigger = irq_trigger(i);
+ *polarity = irq_polarity(i);
+ return 0;
+}
+
+#endif /* CONFIG_ACPI */
#ifndef CONFIG_XEN
/*
@@ -2217,3 +2304,4 @@ void __init setup_ioapic_dest(void)
}
#endif
#endif /* !CONFIG_XEN */
+
--- head-2010-05-25.orig/arch/x86/kernel/ioport_32-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/ioport_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/i386/kernel/ioport.c
- *
* This contains the io-permission bitmap code - written by obz, with changes
* by Linus.
*/
--- head-2010-05-25.orig/arch/x86/kernel/ioport_64-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/ioport_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/x86_64/kernel/ioport.c
- *
* This contains the io-permission bitmap code - written by obz, with changes
* by Linus.
*/
--- head-2010-05-25.orig/arch/x86/kernel/ldt_32-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/ldt_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/i386/kernel/ldt.c
- *
* Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
* Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
*/
@@ -106,14 +104,14 @@ int init_new_context(struct task_struct
struct mm_struct * old_mm;
int retval = 0;
- init_MUTEX(&mm->context.sem);
+ mutex_init(&mm->context.lock);
mm->context.size = 0;
mm->context.has_foreign_mappings = 0;
old_mm = current->mm;
if (old_mm && old_mm->context.size > 0) {
- down(&old_mm->context.sem);
+ mutex_lock(&old_mm->context.lock);
retval = copy_ldt(&mm->context, &old_mm->context);
- up(&old_mm->context.sem);
+ mutex_unlock(&old_mm->context.lock);
}
return retval;
}
@@ -149,7 +147,7 @@ static int read_ldt(void __user * ptr, u
if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES)
bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES;
- down(&mm->context.sem);
+ mutex_lock(&mm->context.lock);
size = mm->context.size*LDT_ENTRY_SIZE;
if (size > bytecount)
size = bytecount;
@@ -157,7 +155,7 @@ static int read_ldt(void __user * ptr, u
err = 0;
if (copy_to_user(ptr, mm->context.ldt, size))
err = -EFAULT;
- up(&mm->context.sem);
+ mutex_unlock(&mm->context.lock);
if (err < 0)
goto error_return;
if (size != bytecount) {
@@ -213,7 +211,7 @@ static int write_ldt(void __user * ptr,
goto out;
}
- down(&mm->context.sem);
+ mutex_lock(&mm->context.lock);
if (ldt_info.entry_number >= mm->context.size) {
error = alloc_ldt(&current->mm->context, ldt_info.entry_number+1, 1);
if (error < 0)
@@ -240,7 +238,7 @@ install:
entry_1, entry_2);
out_unlock:
- up(&mm->context.sem);
+ mutex_unlock(&mm->context.lock);
out:
return error;
}
--- head-2010-05-25.orig/arch/x86/kernel/ldt_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/ldt_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/x86_64/kernel/ldt.c
- *
* Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
* Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
* Copyright (C) 2002 Andi Kleen
@@ -112,19 +110,14 @@ int init_new_context(struct task_struct
int retval = 0;
memset(&mm->context, 0, sizeof(mm->context));
- init_MUTEX(&mm->context.sem);
+ mutex_init(&mm->context.lock);
old_mm = current->mm;
if (old_mm)
mm->context.vdso = old_mm->context.vdso;
if (old_mm && old_mm->context.size > 0) {
- down(&old_mm->context.sem);
+ mutex_lock(&old_mm->context.lock);
retval = copy_ldt(&mm->context, &old_mm->context);
- up(&old_mm->context.sem);
- }
- if (retval == 0) {
- spin_lock(&mm_unpinned_lock);
- list_add(&mm->context.unpinned, &mm_unpinned);
- spin_unlock(&mm_unpinned_lock);
+ mutex_unlock(&old_mm->context.lock);
}
return retval;
}
@@ -148,11 +141,6 @@ void destroy_context(struct mm_struct *m
kfree(mm->context.ldt);
mm->context.size = 0;
}
- if (!PagePinned(virt_to_page(mm->pgd))) {
- spin_lock(&mm_unpinned_lock);
- list_del(&mm->context.unpinned);
- spin_unlock(&mm_unpinned_lock);
- }
}
static int read_ldt(void __user * ptr, unsigned long bytecount)
@@ -166,7 +154,7 @@ static int read_ldt(void __user * ptr, u
if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES)
bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES;
- down(&mm->context.sem);
+ mutex_lock(&mm->context.lock);
size = mm->context.size*LDT_ENTRY_SIZE;
if (size > bytecount)
size = bytecount;
@@ -174,7 +162,7 @@ static int read_ldt(void __user * ptr, u
err = 0;
if (copy_to_user(ptr, mm->context.ldt, size))
err = -EFAULT;
- up(&mm->context.sem);
+ mutex_unlock(&mm->context.lock);
if (err < 0)
goto error_return;
if (size != bytecount) {
@@ -227,7 +215,7 @@ static int write_ldt(void __user * ptr,
goto out;
}
- down(&mm->context.sem);
+ mutex_lock(&mm->context.lock);
if (ldt_info.entry_number >= (unsigned)mm->context.size) {
error = alloc_ldt(&current->mm->context, ldt_info.entry_number+1, 1);
if (error < 0)
@@ -256,7 +244,7 @@ install:
error = HYPERVISOR_update_descriptor(mach_lp, (unsigned long)((entry_1 | (unsigned long) entry_2 << 32)));
out_unlock:
- up(&mm->context.sem);
+ mutex_unlock(&mm->context.lock);
out:
return error;
}
--- head-2010-05-25.orig/arch/x86/kernel/mpparse_32-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/mpparse_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1023,7 +1023,7 @@ void __init mp_config_acpi_legacy_irqs (
/*
* Use the default configuration for the IRQs 0-15. Unless
- * overriden by (MADT) interrupt source override entries.
+ * overridden by (MADT) interrupt source override entries.
*/
for (i = 0; i < 16; i++) {
int idx;
--- head-2010-05-25.orig/arch/x86/kernel/mpparse_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/mpparse_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -57,6 +57,8 @@ unsigned long mp_lapic_addr = 0;
/* Processor that is doing the boot up */
unsigned int boot_cpu_id = -1U;
+EXPORT_SYMBOL(boot_cpu_id);
+
/* Internal processor count */
unsigned int num_processors __cpuinitdata = 0;
@@ -87,7 +89,7 @@ static int __init mpf_checksum(unsigned
}
#ifndef CONFIG_XEN
-static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
+static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
{
int cpu;
cpumask_t tmp_map;
@@ -124,13 +126,24 @@ static void __cpuinit MP_processor_info
cpu = 0;
}
bios_cpu_apicid[cpu] = m->mpc_apicid;
- x86_cpu_to_apicid[cpu] = m->mpc_apicid;
+ /*
+ * We get called early in the the start_kernel initialization
+ * process when the per_cpu data area is not yet setup, so we
+ * use a static array that is removed after the per_cpu data
+ * area is created.
+ */
+ if (x86_cpu_to_apicid_ptr) {
+ u8 *x86_cpu_to_apicid = (u8 *)x86_cpu_to_apicid_ptr;
+ x86_cpu_to_apicid[cpu] = m->mpc_apicid;
+ } else {
+ per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid;
+ }
cpu_set(cpu, cpu_possible_map);
cpu_set(cpu, cpu_present_map);
}
#else
-static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
+static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
{
num_processors++;
}
--- head-2010-05-25.orig/arch/x86/kernel/pci-dma-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/pci-dma-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -13,14 +13,13 @@
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/version.h>
-#include <linux/pci.h>
#include <asm/io.h>
#include <xen/balloon.h>
#include <xen/gnttab.h>
#include <asm/swiotlb.h>
#include <asm/tlbflush.h>
-#include <asm-i386/mach-xen/asm/swiotlb.h>
-#include <asm-i386/mach-xen/asm/gnttab_dma.h>
+#include <asm/swiotlb_32.h>
+#include <asm/gnttab_dma.h>
#include <asm/bug.h>
#ifdef __x86_64__
@@ -106,27 +105,29 @@ int range_straddles_page_boundary(paddr_
}
int
-dma_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
+dma_map_sg(struct device *hwdev, struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
int i, rc;
BUG_ON(!valid_dma_direction(direction));
- WARN_ON(nents == 0 || sg[0].length == 0);
+ WARN_ON(nents == 0 || sgl->length == 0);
if (swiotlb) {
- rc = swiotlb_map_sg(hwdev, sg, nents, direction);
+ rc = swiotlb_map_sg(hwdev, sgl, nents, direction);
} else {
- for (i = 0; i < nents; i++ ) {
- BUG_ON(!sg[i].page);
- sg[i].dma_address =
- gnttab_dma_map_page(sg[i].page) + sg[i].offset;
- sg[i].dma_length = sg[i].length;
+ struct scatterlist *sg;
+
+ for_each_sg(sgl, sg, nents, i) {
+ BUG_ON(!sg_page(sg));
+ sg->dma_address =
+ gnttab_dma_map_page(sg_page(sg)) + sg->offset;
+ sg->dma_length = sg->length;
IOMMU_BUG_ON(address_needs_mapping(
- hwdev, sg[i].dma_address));
+ hwdev, sg->dma_address));
IOMMU_BUG_ON(range_straddles_page_boundary(
- page_to_pseudophys(sg[i].page) + sg[i].offset,
- sg[i].length));
+ page_to_pseudophys(sg_page(sg)) + sg->offset,
+ sg->length));
}
rc = nents;
}
@@ -137,17 +138,19 @@ dma_map_sg(struct device *hwdev, struct
EXPORT_SYMBOL(dma_map_sg);
void
-dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
+dma_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nents,
enum dma_data_direction direction)
{
int i;
BUG_ON(!valid_dma_direction(direction));
if (swiotlb)
- swiotlb_unmap_sg(hwdev, sg, nents, direction);
+ swiotlb_unmap_sg(hwdev, sgl, nents, direction);
else {
- for (i = 0; i < nents; i++ )
- gnttab_dma_unmap_page(sg[i].dma_address);
+ struct scatterlist *sg;
+
+ for_each_sg(sgl, sg, nents, i)
+ gnttab_dma_unmap_page(sg->dma_address);
}
}
EXPORT_SYMBOL(dma_unmap_sg);
@@ -258,7 +261,8 @@ void dma_free_coherent(struct device *de
{
struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
int order = get_order(size);
-
+
+ WARN_ON(irqs_disabled()); /* for portability */
if (mem && vaddr >= mem->virt_base && vaddr < (mem->virt_base + (mem->size << PAGE_SHIFT))) {
int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
--- head-2010-05-25.orig/arch/x86/kernel/process_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/process_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/i386/kernel/process.c
- *
* Copyright (C) 1995 Linus Torvalds
*
* Pentium III FXSR, SSE support
@@ -190,6 +188,10 @@ void cpu_idle(void)
}
}
+static void do_nothing(void *unused)
+{
+}
+
void cpu_idle_wait(void)
{
unsigned int cpu, this_cpu = get_cpu();
@@ -214,13 +216,20 @@ void cpu_idle_wait(void)
cpu_clear(cpu, map);
}
cpus_and(map, map, cpu_online_map);
+ /*
+ * We waited 1 sec, if a CPU still did not call idle
+ * it may be because it is in idle and not waking up
+ * because it has nothing to do.
+ * Give all the remaining CPUS a kick.
+ */
+ smp_call_function_mask(map, do_nothing, 0, 0);
} while (!cpus_empty(map));
set_cpus_allowed(current, tmp);
}
EXPORT_SYMBOL_GPL(cpu_idle_wait);
-void __devinit select_idle_routine(const struct cpuinfo_x86 *c)
+void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
{
}
@@ -238,34 +247,52 @@ static int __init idle_setup(char *str)
}
early_param("idle", idle_setup);
-void show_regs(struct pt_regs * regs)
+void __show_registers(struct pt_regs *regs, int all)
{
unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
unsigned long d0, d1, d2, d3, d6, d7;
+ unsigned long esp;
+ unsigned short ss, gs;
+
+ if (user_mode_vm(regs)) {
+ esp = regs->esp;
+ ss = regs->xss & 0xffff;
+ savesegment(gs, gs);
+ } else {
+ esp = (unsigned long) (&regs->esp);
+ savesegment(ss, ss);
+ savesegment(gs, gs);
+ }
printk("\n");
- printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
- printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
+ printk("Pid: %d, comm: %s %s (%s %.*s)\n",
+ task_pid_nr(current), current->comm,
+ print_tainted(), init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
+
+ printk("EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
+ 0xffff & regs->xcs, regs->eip, regs->eflags,
+ smp_processor_id());
print_symbol("EIP is at %s\n", regs->eip);
- if (user_mode_vm(regs))
- printk(" ESP: %04x:%08lx",0xffff & regs->xss,regs->esp);
- printk(" EFLAGS: %08lx %s (%s %.*s)\n",
- regs->eflags, print_tainted(), init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
- regs->eax,regs->ebx,regs->ecx,regs->edx);
- printk("ESI: %08lx EDI: %08lx EBP: %08lx",
- regs->esi, regs->edi, regs->ebp);
- printk(" DS: %04x ES: %04x FS: %04x\n",
- 0xffff & regs->xds,0xffff & regs->xes, 0xffff & regs->xfs);
+ regs->eax, regs->ebx, regs->ecx, regs->edx);
+ printk("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
+ regs->esi, regs->edi, regs->ebp, esp);
+ printk(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
+ regs->xds & 0xffff, regs->xes & 0xffff,
+ regs->xfs & 0xffff, gs, ss);
+
+ if (!all)
+ return;
cr0 = read_cr0();
cr2 = read_cr2();
cr3 = read_cr3();
cr4 = read_cr4_safe();
- printk("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n", cr0, cr2, cr3, cr4);
+ printk("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n",
+ cr0, cr2, cr3, cr4);
get_debugreg(d0, 0);
get_debugreg(d1, 1);
@@ -273,10 +300,16 @@ void show_regs(struct pt_regs * regs)
get_debugreg(d3, 3);
printk("DR0: %08lx DR1: %08lx DR2: %08lx DR3: %08lx\n",
d0, d1, d2, d3);
+
get_debugreg(d6, 6);
get_debugreg(d7, 7);
- printk("DR6: %08lx DR7: %08lx\n", d6, d7);
+ printk("DR6: %08lx DR7: %08lx\n",
+ d6, d7);
+}
+void show_regs(struct pt_regs *regs)
+{
+ __show_registers(regs, 1);
show_trace(NULL, regs, &regs->esp);
}
--- head-2010-05-25.orig/arch/x86/kernel/process_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/process_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/x86-64/kernel/process.c
- *
* Copyright (C) 1995 Linus Torvalds
*
* Pentium III FXSR, SSE support
@@ -41,6 +39,7 @@
#include <linux/notifier.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
+#include <linux/tick.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
@@ -172,6 +171,9 @@ void cpu_idle (void)
if (__get_cpu_var(cpu_idle_state))
__get_cpu_var(cpu_idle_state) = 0;
+
+ tick_nohz_stop_sched_tick();
+
rmb();
idle = xen_idle; /* no alternatives */
if (cpu_is_offline(smp_processor_id()))
@@ -190,12 +192,17 @@ void cpu_idle (void)
__exit_idle();
}
+ tick_nohz_restart_sched_tick();
preempt_enable_no_resched();
schedule();
preempt_disable();
}
}
+static void do_nothing(void *unused)
+{
+}
+
void cpu_idle_wait(void)
{
unsigned int cpu, this_cpu = get_cpu();
@@ -221,6 +228,13 @@ void cpu_idle_wait(void)
cpu_clear(cpu, map);
}
cpus_and(map, map, cpu_online_map);
+ /*
+ * We waited 1 sec, if a CPU still did not call idle
+ * it may be because it is in idle and not waking up
+ * because it has nothing to do.
+ * Give all the remaining CPUS a kick.
+ */
+ smp_call_function_mask(map, do_nothing, 0, 0);
} while (!cpus_empty(map));
set_cpus_allowed(current, tmp);
@@ -528,7 +542,7 @@ static inline void __switch_to_xtra(stru
*
* Kprobes not supported here. Set the probe on schedule instead.
*/
-__kprobes struct task_struct *
+struct task_struct *
__switch_to(struct task_struct *prev_p, struct task_struct *next_p)
{
struct thread_struct *prev = &prev_p->thread,
--- head-2010-05-25.orig/arch/x86/kernel/quirks-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/quirks-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -41,7 +41,353 @@ static void __devinit quirk_intel_irqbal
if (!(config & 0x2))
pci_write_config_byte(dev, 0xf4, config);
}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_intel_irqbalance);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_intel_irqbalance);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH,
+ quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH,
+ quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH,
+ quirk_intel_irqbalance);
+#endif
+
+#if defined(CONFIG_HPET_TIMER)
+#include <asm/hpet.h>
+
+unsigned long force_hpet_address;
+
+static enum {
+ NONE_FORCE_HPET_RESUME,
+ OLD_ICH_FORCE_HPET_RESUME,
+ ICH_FORCE_HPET_RESUME,
+ VT8237_FORCE_HPET_RESUME,
+ NVIDIA_FORCE_HPET_RESUME,
+} force_hpet_resume_type;
+
+static void __iomem *rcba_base;
+
+static void ich_force_hpet_resume(void)
+{
+ u32 val;
+
+ if (!force_hpet_address)
+ return;
+
+ if (rcba_base == NULL)
+ BUG();
+
+ /* read the Function Disable register, dword mode only */
+ val = readl(rcba_base + 0x3404);
+ if (!(val & 0x80)) {
+ /* HPET disabled in HPTC. Trying to enable */
+ writel(val | 0x80, rcba_base + 0x3404);
+ }
+
+ val = readl(rcba_base + 0x3404);
+ if (!(val & 0x80))
+ BUG();
+ else
+ printk(KERN_DEBUG "Force enabled HPET at resume\n");
+
+ return;
+}
+
+static void ich_force_enable_hpet(struct pci_dev *dev)
+{
+ u32 val;
+ u32 uninitialized_var(rcba);
+ int err = 0;
+
+ if (hpet_address || force_hpet_address)
+ return;
+
+ pci_read_config_dword(dev, 0xF0, &rcba);
+ rcba &= 0xFFFFC000;
+ if (rcba == 0) {
+ printk(KERN_DEBUG "RCBA disabled. Cannot force enable HPET\n");
+ return;
+ }
+
+ /* use bits 31:14, 16 kB aligned */
+ rcba_base = ioremap_nocache(rcba, 0x4000);
+ if (rcba_base == NULL) {
+ printk(KERN_DEBUG "ioremap failed. Cannot force enable HPET\n");
+ return;
+ }
+
+ /* read the Function Disable register, dword mode only */
+ val = readl(rcba_base + 0x3404);
+
+ if (val & 0x80) {
+ /* HPET is enabled in HPTC. Just not reported by BIOS */
+ val = val & 0x3;
+ force_hpet_address = 0xFED00000 | (val << 12);
+ printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+ force_hpet_address);
+ iounmap(rcba_base);
+ return;
+ }
+
+ /* HPET disabled in HPTC. Trying to enable */
+ writel(val | 0x80, rcba_base + 0x3404);
+
+ val = readl(rcba_base + 0x3404);
+ if (!(val & 0x80)) {
+ err = 1;
+ } else {
+ val = val & 0x3;
+ force_hpet_address = 0xFED00000 | (val << 12);
+ }
+
+ if (err) {
+ force_hpet_address = 0;
+ iounmap(rcba_base);
+ printk(KERN_DEBUG "Failed to force enable HPET\n");
+ } else {
+ force_hpet_resume_type = ICH_FORCE_HPET_RESUME;
+ printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+ force_hpet_address);
+ }
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0,
+ ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1,
+ ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0,
+ ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1,
+ ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31,
+ ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1,
+ ich_force_enable_hpet);
+
+
+static struct pci_dev *cached_dev;
+
+static void old_ich_force_hpet_resume(void)
+{
+ u32 val;
+ u32 uninitialized_var(gen_cntl);
+
+ if (!force_hpet_address || !cached_dev)
+ return;
+
+ pci_read_config_dword(cached_dev, 0xD0, &gen_cntl);
+ gen_cntl &= (~(0x7 << 15));
+ gen_cntl |= (0x4 << 15);
+
+ pci_write_config_dword(cached_dev, 0xD0, gen_cntl);
+ pci_read_config_dword(cached_dev, 0xD0, &gen_cntl);
+ val = gen_cntl >> 15;
+ val &= 0x7;
+ if (val == 0x4)
+ printk(KERN_DEBUG "Force enabled HPET at resume\n");
+ else
+ BUG();
+}
+
+static void old_ich_force_enable_hpet(struct pci_dev *dev)
+{
+ u32 val;
+ u32 uninitialized_var(gen_cntl);
+
+ if (hpet_address || force_hpet_address)
+ return;
+
+ pci_read_config_dword(dev, 0xD0, &gen_cntl);
+ /*
+ * Bit 17 is HPET enable bit.
+ * Bit 16:15 control the HPET base address.
+ */
+ val = gen_cntl >> 15;
+ val &= 0x7;
+ if (val & 0x4) {
+ val &= 0x3;
+ force_hpet_address = 0xFED00000 | (val << 12);
+ printk(KERN_DEBUG "HPET at base address 0x%lx\n",
+ force_hpet_address);
+ return;
+ }
+
+ /*
+ * HPET is disabled. Trying enabling at FED00000 and check
+ * whether it sticks
+ */
+ gen_cntl &= (~(0x7 << 15));
+ gen_cntl |= (0x4 << 15);
+ pci_write_config_dword(dev, 0xD0, gen_cntl);
+
+ pci_read_config_dword(dev, 0xD0, &gen_cntl);
+
+ val = gen_cntl >> 15;
+ val &= 0x7;
+ if (val & 0x4) {
+ /* HPET is enabled in HPTC. Just not reported by BIOS */
+ val &= 0x3;
+ force_hpet_address = 0xFED00000 | (val << 12);
+ printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+ force_hpet_address);
+ cached_dev = dev;
+ force_hpet_resume_type = OLD_ICH_FORCE_HPET_RESUME;
+ return;
+ }
+
+ printk(KERN_DEBUG "Failed to force enable HPET\n");
+}
+
+/*
+ * Undocumented chipset features. Make sure that the user enforced
+ * this.
+ */
+static void old_ich_force_enable_hpet_user(struct pci_dev *dev)
+{
+ if (hpet_force_user)
+ old_ich_force_enable_hpet(dev);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
+ old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12,
+ old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
+ old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12,
+ old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0,
+ old_ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_12,
+ old_ich_force_enable_hpet);
+
+
+static void vt8237_force_hpet_resume(void)
+{
+ u32 val;
+
+ if (!force_hpet_address || !cached_dev)
+ return;
+
+ val = 0xfed00000 | 0x80;
+ pci_write_config_dword(cached_dev, 0x68, val);
+
+ pci_read_config_dword(cached_dev, 0x68, &val);
+ if (val & 0x80)
+ printk(KERN_DEBUG "Force enabled HPET at resume\n");
+ else
+ BUG();
+}
+
+static void vt8237_force_enable_hpet(struct pci_dev *dev)
+{
+ u32 uninitialized_var(val);
+
+ if (!hpet_force_user || hpet_address || force_hpet_address)
+ return;
+
+ pci_read_config_dword(dev, 0x68, &val);
+ /*
+ * Bit 7 is HPET enable bit.
+ * Bit 31:10 is HPET base address (contrary to what datasheet claims)
+ */
+ if (val & 0x80) {
+ force_hpet_address = (val & ~0x3ff);
+ printk(KERN_DEBUG "HPET at base address 0x%lx\n",
+ force_hpet_address);
+ return;
+ }
+
+ /*
+ * HPET is disabled. Trying enabling at FED00000 and check
+ * whether it sticks
+ */
+ val = 0xfed00000 | 0x80;
+ pci_write_config_dword(dev, 0x68, val);
+
+ pci_read_config_dword(dev, 0x68, &val);
+ if (val & 0x80) {
+ force_hpet_address = (val & ~0x3ff);
+ printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+ force_hpet_address);
+ cached_dev = dev;
+ force_hpet_resume_type = VT8237_FORCE_HPET_RESUME;
+ return;
+ }
+
+ printk(KERN_DEBUG "Failed to force enable HPET\n");
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235,
+ vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
+ vt8237_force_enable_hpet);
+
+/*
+ * Undocumented chipset feature taken from LinuxBIOS.
+ */
+static void nvidia_force_hpet_resume(void)
+{
+ pci_write_config_dword(cached_dev, 0x44, 0xfed00001);
+ printk(KERN_DEBUG "Force enabled HPET at resume\n");
+}
+
+static void nvidia_force_enable_hpet(struct pci_dev *dev)
+{
+ u32 uninitialized_var(val);
+
+ if (!hpet_force_user || hpet_address || force_hpet_address)
+ return;
+
+ pci_write_config_dword(dev, 0x44, 0xfed00001);
+ pci_read_config_dword(dev, 0x44, &val);
+ force_hpet_address = val & 0xfffffffe;
+ force_hpet_resume_type = NVIDIA_FORCE_HPET_RESUME;
+ printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+ force_hpet_address);
+ cached_dev = dev;
+ return;
+}
+
+/* ISA Bridges */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0050,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0051,
+ nvidia_force_enable_hpet);
+
+/* LPC bridges */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0360,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0361,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0362,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0363,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0364,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0365,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0366,
+ nvidia_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, 0x0367,
+ nvidia_force_enable_hpet);
+
+void force_hpet_resume(void)
+{
+ switch (force_hpet_resume_type) {
+ case ICH_FORCE_HPET_RESUME:
+ return ich_force_hpet_resume();
+
+ case OLD_ICH_FORCE_HPET_RESUME:
+ return old_ich_force_hpet_resume();
+
+ case VT8237_FORCE_HPET_RESUME:
+ return vt8237_force_hpet_resume();
+
+ case NVIDIA_FORCE_HPET_RESUME:
+ return nvidia_force_hpet_resume();
+
+ default:
+ break;
+ }
+}
+
#endif
--- head-2010-05-25.orig/arch/x86/kernel/setup64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/setup64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -15,7 +15,6 @@
#include <linux/bootmem.h>
#include <linux/bitops.h>
#include <linux/module.h>
-#include <asm/bootsetup.h>
#include <asm/pda.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
@@ -27,11 +26,12 @@
#include <asm/percpu.h>
#include <asm/proto.h>
#include <asm/sections.h>
+#include <asm/setup.h>
#ifdef CONFIG_XEN
#include <asm/hypervisor.h>
#endif
-char x86_boot_params[BOOT_PARAM_SIZE] __initdata;
+struct boot_params __initdata boot_params;
cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
@@ -159,8 +159,8 @@ static void switch_pt(void)
static void __cpuinit cpu_gdt_init(const struct desc_ptr *gdt_descr)
{
- asm volatile("lgdt %0" :: "m" (*gdt_descr));
- asm volatile("lidt %0" :: "m" (idt_descr));
+ load_gdt(gdt_descr);
+ load_idt(idt_descr);
}
#endif
@@ -252,6 +252,14 @@ void __cpuinit check_efer(void)
unsigned long kernel_eflags;
+#ifndef CONFIG_X86_NO_TSS
+/*
+ * Copies of the original ist values from the tss are only accessed during
+ * debugging, no special alignment required.
+ */
+DEFINE_PER_CPU(struct orig_ist, orig_ist);
+#endif
+
/*
* cpu_init() initializes state that is per-CPU. Some data is already
* initialized (naturally) in the bootstrap process, such as the GDT
--- head-2010-05-25.orig/arch/x86/kernel/setup_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/setup_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/i386/kernel/setup.c
- *
* Copyright (C) 1995 Linus Torvalds
*
* Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
@@ -70,6 +68,7 @@
#include <xen/xencons.h>
#include <setup_arch.h>
#include <bios_ebda.h>
+#include <asm/cacheflush.h>
#ifdef CONFIG_XEN
#include <xen/interface/kexec.h>
@@ -80,13 +79,14 @@ static struct notifier_block xen_panic_b
xen_panic_event, NULL, 0 /* try to go last */
};
-int disable_pse __devinitdata = 0;
+int disable_pse __cpuinitdata = 0;
/*
* Machine setup..
*/
extern struct resource code_resource;
extern struct resource data_resource;
+extern struct resource bss_resource;
/* cpu data as detected by the assembly code in head.S */
struct cpuinfo_x86 new_cpu_data __cpuinitdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
@@ -98,9 +98,6 @@ unsigned long mmu_cr4_features;
/* for MCA, but anyone else can use it if they want */
unsigned int machine_id;
-#ifdef CONFIG_MCA
-EXPORT_SYMBOL(machine_id);
-#endif
unsigned int machine_submodel_id;
unsigned int BIOS_revision;
unsigned int mca_pentium_flag;
@@ -121,7 +118,7 @@ EXPORT_SYMBOL(apm_info);
struct edid_info edid_info;
EXPORT_SYMBOL_GPL(edid_info);
#ifndef CONFIG_XEN
-#define copy_edid() (edid_info = EDID_INFO)
+#define copy_edid() (edid_info = boot_params.edid_info)
#endif
struct ist_info ist_info;
#if defined(CONFIG_X86_SPEEDSTEP_SMI) || \
@@ -170,10 +167,11 @@ EXPORT_SYMBOL(edd);
*/
static inline void copy_edd(void)
{
- memcpy(edd.mbr_signature, EDD_MBR_SIGNATURE, sizeof(edd.mbr_signature));
- memcpy(edd.edd_info, EDD_BUF, sizeof(edd.edd_info));
- edd.mbr_signature_nr = EDD_MBR_SIG_NR;
- edd.edd_info_nr = EDD_NR;
+ memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
+ sizeof(edd.mbr_signature));
+ memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
+ edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
+ edd.edd_info_nr = boot_params.eddbuf_entries;
}
#endif
#else
@@ -418,6 +416,53 @@ extern unsigned long __init setup_memory
extern void zone_sizes_init(void);
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
+static inline unsigned long long get_total_mem(void)
+{
+ unsigned long long total;
+
+ total = max_low_pfn - min_low_pfn;
+#ifdef CONFIG_HIGHMEM
+ total += highend_pfn - highstart_pfn;
+#endif
+
+ return total << PAGE_SHIFT;
+}
+
+#ifdef CONFIG_KEXEC
+#ifndef CONFIG_XEN
+static void __init reserve_crashkernel(void)
+{
+ unsigned long long total_mem;
+ unsigned long long crash_size, crash_base;
+ int ret;
+
+ total_mem = get_total_mem();
+
+ ret = parse_crashkernel(boot_command_line, total_mem,
+ &crash_size, &crash_base);
+ if (ret == 0 && crash_size > 0) {
+ if (crash_base > 0) {
+ printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+ "for crashkernel (System RAM: %ldMB)\n",
+ (unsigned long)(crash_size >> 20),
+ (unsigned long)(crash_base >> 20),
+ (unsigned long)(total_mem >> 20));
+ crashk_res.start = crash_base;
+ crashk_res.end = crash_base + crash_size - 1;
+ reserve_bootmem(crash_base, crash_size);
+ } else
+ printk(KERN_INFO "crashkernel reservation failed - "
+ "you have to specify a base address\n");
+ }
+}
+#else
+#define reserve_crashkernel xen_machine_kexec_setup_resources
+#endif
+#else
+static inline void __init reserve_crashkernel(void)
+{}
+#endif
+
void __init setup_bootmem_allocator(void)
{
unsigned long bootmap_size;
@@ -473,30 +518,25 @@ void __init setup_bootmem_allocator(void
#ifdef CONFIG_BLK_DEV_INITRD
if (xen_start_info->mod_start) {
- if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
- /*reserve_bootmem(INITRD_START, INITRD_SIZE);*/
- initrd_start = INITRD_START + PAGE_OFFSET;
- initrd_end = initrd_start+INITRD_SIZE;
+ unsigned long ramdisk_image = __pa(xen_start_info->mod_start);
+ unsigned long ramdisk_size = xen_start_info->mod_len;
+ unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
+ unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
+
+ if (ramdisk_end <= end_of_lowmem) {
+ /*reserve_bootmem(ramdisk_image, ramdisk_size);*/
+ initrd_start = ramdisk_image + PAGE_OFFSET;
+ initrd_end = initrd_start+ramdisk_size;
initrd_below_start_ok = 1;
- }
- else {
+ } else {
printk(KERN_ERR "initrd extends beyond end of memory "
- "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
- INITRD_START + INITRD_SIZE,
- max_low_pfn << PAGE_SHIFT);
+ "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+ ramdisk_end, end_of_lowmem);
initrd_start = 0;
}
}
#endif
-#ifdef CONFIG_KEXEC
-#ifdef CONFIG_XEN
- xen_machine_kexec_setup_resources();
-#else
- if (crashk_res.start != crashk_res.end)
- reserve_bootmem(crashk_res.start,
- crashk_res.end - crashk_res.start + 1);
-#endif
-#endif
+ reserve_crashkernel();
}
/*
@@ -574,7 +614,8 @@ void __init setup_arch(char **cmdline_p)
* the system table is valid. If not, then initialize normally.
*/
#ifdef CONFIG_EFI
- if ((LOADER_TYPE == 0x50) && EFI_SYSTAB)
+ if ((boot_params.hdr.type_of_loader == 0x50) &&
+ boot_params.efi_info.efi_systab)
efi_enabled = 1;
#endif
@@ -582,18 +623,18 @@ void __init setup_arch(char **cmdline_p)
properly. Setting ROOT_DEV to default to /dev/ram0 breaks initrd.
*/
ROOT_DEV = MKDEV(UNNAMED_MAJOR,0);
- screen_info = SCREEN_INFO;
+ screen_info = boot_params.screen_info;
copy_edid();
- apm_info.bios = APM_BIOS_INFO;
- ist_info = IST_INFO;
- saved_videomode = VIDEO_MODE;
- if( SYS_DESC_TABLE.length != 0 ) {
- set_mca_bus(SYS_DESC_TABLE.table[3] & 0x2);
- machine_id = SYS_DESC_TABLE.table[0];
- machine_submodel_id = SYS_DESC_TABLE.table[1];
- BIOS_revision = SYS_DESC_TABLE.table[2];
+ apm_info.bios = boot_params.apm_bios_info;
+ ist_info = boot_params.ist_info;
+ saved_videomode = boot_params.hdr.vid_mode;
+ if( boot_params.sys_desc_table.length != 0 ) {
+ set_mca_bus(boot_params.sys_desc_table.table[3] & 0x2);
+ machine_id = boot_params.sys_desc_table.table[0];
+ machine_submodel_id = boot_params.sys_desc_table.table[1];
+ BIOS_revision = boot_params.sys_desc_table.table[2];
}
- bootloader_type = LOADER_TYPE;
+ bootloader_type = boot_params.hdr.type_of_loader;
if (is_initial_xendomain()) {
const struct dom0_vga_console_info *info =
@@ -608,9 +649,9 @@ void __init setup_arch(char **cmdline_p)
screen_info.orig_video_isVGA = 0;
#ifdef CONFIG_BLK_DEV_RAM
- rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
- rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
+ rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
+ rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
+ rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
#endif
ARCH_SETUP
@@ -623,7 +664,7 @@ void __init setup_arch(char **cmdline_p)
copy_edd();
- if (!MOUNT_ROOT_RDONLY)
+ if (!boot_params.hdr.root_flags)
root_mountflags &= ~MS_RDONLY;
init_mm.start_code = (unsigned long) _text;
init_mm.end_code = (unsigned long) _etext;
@@ -635,6 +676,8 @@ void __init setup_arch(char **cmdline_p)
code_resource.end = virt_to_phys(_etext)-1;
data_resource.start = virt_to_phys(_etext);
data_resource.end = virt_to_phys(_edata)-1;
+ bss_resource.start = virt_to_phys(&__bss_start);
+ bss_resource.end = virt_to_phys(&__bss_stop)-1;
if ((i = MAX_GUEST_CMDLINE) > COMMAND_LINE_SIZE)
i = COMMAND_LINE_SIZE;
@@ -663,7 +706,7 @@ void __init setup_arch(char **cmdline_p)
/*
* NOTE: before this point _nobody_ is allowed to allocate
* any memory using the bootmem allocator. Although the
- * alloctor is now initialised only the first 8Mb of the kernel
+ * allocator is now initialised only the first 8Mb of the kernel
* virtual address space has been mapped. All allocations before
* paging_init() has completed must use the alloc_bootmem_low_pages()
* variant (which allocates DMA'able memory) and care must be taken
@@ -786,10 +829,8 @@ void __init setup_arch(char **cmdline_p)
acpi_boot_table_init();
#endif
-#ifdef CONFIG_PCI
-#ifdef CONFIG_X86_IO_APIC
- check_acpi_pci(); /* Checks more than just ACPI actually */
-#endif
+#if defined(CONFIG_PCI) && !defined(CONFIG_XEN)
+ early_quirks();
#endif
#ifdef CONFIG_ACPI
--- head-2010-05-25.orig/arch/x86/kernel/setup_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/setup_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,10 +1,5 @@
/*
- * linux/arch/x86-64/kernel/setup.c
- *
* Copyright (C) 1995 Linus Torvalds
- *
- * Nov 2001 Dave Jones <davej@suse.de>
- * Forked from i386 setup code.
*/
/*
@@ -57,13 +52,13 @@
#include <asm/dma.h>
#include <asm/mpspec.h>
#include <asm/mmu_context.h>
-#include <asm/bootsetup.h>
#include <asm/proto.h>
#include <asm/setup.h>
#include <asm/mach_apic.h>
#include <asm/numa.h>
#include <asm/sections.h>
#include <asm/dmi.h>
+#include <asm/cacheflush.h>
#ifdef CONFIG_XEN
#include <linux/percpu.h>
#include <xen/interface/physdev.h>
@@ -180,6 +175,12 @@ struct resource code_resource = {
.end = 0,
.flags = IORESOURCE_RAM,
};
+struct resource bss_resource = {
+ .name = "Kernel bss",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_RAM,
+};
#ifdef CONFIG_PROC_VMCORE
/* elfcorehdr= specifies the location of elf core header
@@ -232,10 +233,11 @@ EXPORT_SYMBOL(edd);
*/
static inline void copy_edd(void)
{
- memcpy(edd.mbr_signature, EDD_MBR_SIGNATURE, sizeof(edd.mbr_signature));
- memcpy(edd.edd_info, EDD_BUF, sizeof(edd.edd_info));
- edd.mbr_signature_nr = EDD_MBR_SIG_NR;
- edd.edd_info_nr = EDD_NR;
+ memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
+ sizeof(edd.mbr_signature));
+ memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
+ edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
+ edd.edd_info_nr = boot_params.eddbuf_entries;
}
#endif
#else
@@ -244,6 +246,41 @@ static inline void copy_edd(void)
}
#endif
+#ifdef CONFIG_KEXEC
+#ifndef CONFIG_XEN
+static void __init reserve_crashkernel(void)
+{
+ unsigned long long free_mem;
+ unsigned long long crash_size, crash_base;
+ int ret;
+
+ free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
+
+ ret = parse_crashkernel(boot_command_line, free_mem,
+ &crash_size, &crash_base);
+ if (ret == 0 && crash_size) {
+ if (crash_base > 0) {
+ printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+ "for crashkernel (System RAM: %ldMB)\n",
+ (unsigned long)(crash_size >> 20),
+ (unsigned long)(crash_base >> 20),
+ (unsigned long)(free_mem >> 20));
+ crashk_res.start = crash_base;
+ crashk_res.end = crash_base + crash_size - 1;
+ reserve_bootmem(crash_base, crash_size);
+ } else
+ printk(KERN_INFO "crashkernel reservation failed - "
+ "you have to specify a base address\n");
+ }
+}
+#else
+#define reserve_crashkernel xen_machine_kexec_setup_resources
+#endif
+#else
+static inline void __init reserve_crashkernel(void)
+{}
+#endif
+
#ifndef CONFIG_XEN
#define EBDA_ADDR_POINTER 0x40E
@@ -284,7 +321,7 @@ void __init setup_arch(char **cmdline_p)
atomic_notifier_chain_register(&panic_notifier_list, &xen_panic_block);
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
- screen_info = SCREEN_INFO;
+ screen_info = boot_params.screen_info;
if (is_initial_xendomain()) {
const struct dom0_vga_console_info *info =
@@ -307,22 +344,22 @@ void __init setup_arch(char **cmdline_p)
#else
printk(KERN_INFO "Command line: %s\n", boot_command_line);
- ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
- screen_info = SCREEN_INFO;
- edid_info = EDID_INFO;
+ ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
+ screen_info = boot_params.screen_info;
+ edid_info = boot_params.edid_info;
#endif /* !CONFIG_XEN */
- saved_video_mode = SAVED_VIDEO_MODE;
- bootloader_type = LOADER_TYPE;
+ saved_video_mode = boot_params.hdr.vid_mode;
+ bootloader_type = boot_params.hdr.type_of_loader;
#ifdef CONFIG_BLK_DEV_RAM
- rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
- rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
+ rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
+ rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
+ rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
#endif
setup_memory_region();
copy_edd();
- if (!MOUNT_ROOT_RDONLY)
+ if (!boot_params.hdr.root_flags)
root_mountflags &= ~MS_RDONLY;
init_mm.start_code = (unsigned long) &_text;
init_mm.end_code = (unsigned long) &_etext;
@@ -333,6 +370,8 @@ void __init setup_arch(char **cmdline_p)
code_resource.end = virt_to_phys(&_etext)-1;
data_resource.start = virt_to_phys(&_etext);
data_resource.end = virt_to_phys(&_edata)-1;
+ bss_resource.start = virt_to_phys(&__bss_start);
+ bss_resource.end = virt_to_phys(&__bss_stop)-1;
early_identify_cpu(&boot_cpu_data);
@@ -360,6 +399,11 @@ void __init setup_arch(char **cmdline_p)
if (is_initial_xendomain())
dmi_scan_machine();
+#if defined(CONFIG_SMP) && !defined(CONFIG_XEN)
+ /* setup to use the static apicid table during kernel startup */
+ x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init;
+#endif
+
/* How many end-of-memory variables you have, grandma! */
max_low_pfn = end_pfn;
max_pfn = end_pfn;
@@ -424,52 +468,37 @@ void __init setup_arch(char **cmdline_p)
*/
acpi_reserve_bootmem();
#endif
-#ifdef CONFIG_XEN
#ifdef CONFIG_BLK_DEV_INITRD
+#ifdef CONFIG_XEN
if (xen_start_info->mod_start) {
- if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
- /*reserve_bootmem_generic(INITRD_START, INITRD_SIZE);*/
- initrd_start = INITRD_START + PAGE_OFFSET;
- initrd_end = initrd_start+INITRD_SIZE;
+ unsigned long ramdisk_image = __pa(xen_start_info->mod_start);
+ unsigned long ramdisk_size = xen_start_info->mod_len;
+#else
+ if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
+ unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
+ unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
+#endif
+ unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
+ unsigned long end_of_mem = end_pfn << PAGE_SHIFT;
+
+ if (ramdisk_end <= end_of_mem) {
+#ifndef CONFIG_XEN
+ reserve_bootmem_generic(ramdisk_image, ramdisk_size);
+#endif
+ initrd_start = ramdisk_image + PAGE_OFFSET;
+ initrd_end = initrd_start+ramdisk_size;
+#ifdef CONFIG_XEN
initrd_below_start_ok = 1;
- } else {
- printk(KERN_ERR "initrd extends beyond end of memory "
- "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
- (unsigned long)(INITRD_START + INITRD_SIZE),
- (unsigned long)(end_pfn << PAGE_SHIFT));
- initrd_start = 0;
- }
- }
#endif
-#else /* CONFIG_XEN */
-#ifdef CONFIG_BLK_DEV_INITRD
- if (LOADER_TYPE && INITRD_START) {
- if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
- reserve_bootmem_generic(INITRD_START, INITRD_SIZE);
- initrd_start = INITRD_START + PAGE_OFFSET;
- initrd_end = initrd_start+INITRD_SIZE;
- }
- else {
+ } else {
printk(KERN_ERR "initrd extends beyond end of memory "
- "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
- (unsigned long)(INITRD_START + INITRD_SIZE),
- (unsigned long)(end_pfn << PAGE_SHIFT));
+ "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+ ramdisk_end, end_of_mem);
initrd_start = 0;
}
}
#endif
-#endif /* !CONFIG_XEN */
-#ifdef CONFIG_KEXEC
-#ifdef CONFIG_XEN
- xen_machine_kexec_setup_resources();
-#else
- if (crashk_res.start != crashk_res.end) {
- reserve_bootmem_generic(crashk_res.start,
- crashk_res.end - crashk_res.start + 1);
- }
-#endif
-#endif
-
+ reserve_crashkernel();
paging_init();
#ifdef CONFIG_X86_LOCAL_APIC
/*
@@ -784,7 +813,7 @@ static void __init amd_detect_cmp(struct
but in the same order as the HT nodeids.
If that doesn't result in a usable node fall back to the
path for the previous case. */
- int ht_nodeid = apicid - (cpu_data[0].phys_proc_id << bits);
+ int ht_nodeid = apicid - (cpu_data(0).phys_proc_id << bits);
if (ht_nodeid >= 0 &&
apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
node = apicid_to_node[ht_nodeid];
@@ -799,6 +828,39 @@ static void __init amd_detect_cmp(struct
#endif
}
+#define ENABLE_C1E_MASK 0x18000000
+#define CPUID_PROCESSOR_SIGNATURE 1
+#define CPUID_XFAM 0x0ff00000
+#define CPUID_XFAM_K8 0x00000000
+#define CPUID_XFAM_10H 0x00100000
+#define CPUID_XFAM_11H 0x00200000
+#define CPUID_XMOD 0x000f0000
+#define CPUID_XMOD_REV_F 0x00040000
+
+#ifndef CONFIG_XEN
+/* AMD systems with C1E don't have a working lAPIC timer. Check for that. */
+static __cpuinit int amd_apic_timer_broken(void)
+{
+ u32 lo, hi;
+ u32 eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
+ switch (eax & CPUID_XFAM) {
+ case CPUID_XFAM_K8:
+ if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F)
+ break;
+ case CPUID_XFAM_10H:
+ case CPUID_XFAM_11H:
+ rdmsr(MSR_K8_ENABLE_C1E, lo, hi);
+ if (lo & ENABLE_C1E_MASK)
+ return 1;
+ break;
+ default:
+ /* err on the side of caution */
+ return 1;
+ }
+ return 0;
+}
+#endif
+
static void __cpuinit init_amd(struct cpuinfo_x86 *c)
{
unsigned level;
@@ -828,7 +890,7 @@ static void __cpuinit init_amd(struct cp
level = cpuid_eax(1);
if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58))
set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
- if (c->x86 == 0x10)
+ if (c->x86 == 0x10 || c->x86 == 0x11)
set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
/* Enable workaround for FXSAVE leak */
@@ -870,6 +932,11 @@ static void __cpuinit init_amd(struct cp
/* Family 10 doesn't support C states in MWAIT so don't use it */
if (c->x86 == 0x10 && !force_mwait)
clear_bit(X86_FEATURE_MWAIT, &c->x86_capability);
+
+#ifndef CONFIG_XEN
+ if (amd_apic_timer_broken())
+ disable_apic_timer = 1;
+#endif
}
static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
@@ -1182,6 +1249,7 @@ void __cpuinit print_cpu_info(struct cpu
static int show_cpuinfo(struct seq_file *m, void *v)
{
struct cpuinfo_x86 *c = v;
+ int cpu = 0;
/*
* These flag bits must match the definitions in <asm/cpufeature.h>.
@@ -1191,7 +1259,7 @@ static int show_cpuinfo(struct seq_file
* applications want to get the raw CPUID data, they should access
* /dev/cpu/<cpu_nr>/cpuid instead.
*/
- static char *x86_cap_flags[] = {
+ static const char *const x86_cap_flags[] = {
/* Intel-defined */
"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
"cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
@@ -1222,7 +1290,7 @@ static int show_cpuinfo(struct seq_file
/* Intel-defined (#2) */
"pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
"tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
- NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
+ NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* VIA/Cyrix/Centaur-defined */
@@ -1232,10 +1300,10 @@ static int show_cpuinfo(struct seq_file
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* AMD-defined (#2) */
- "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy",
- "altmovcr8", "abm", "sse4a",
- "misalignsse", "3dnowprefetch",
- "osvw", "ibs", NULL, NULL, NULL, NULL,
+ "lahf_lm", "cmp_legacy", "svm", "extapic",
+ "cr8_legacy", "abm", "sse4a", "misalignsse",
+ "3dnowprefetch", "osvw", "ibs", "sse5",
+ "skinit", "wdt", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -1245,7 +1313,7 @@ static int show_cpuinfo(struct seq_file
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
};
- static char *x86_power_flags[] = {
+ static const char *const x86_power_flags[] = {
"ts", /* temperature sensor */
"fid", /* frequency id control */
"vid", /* voltage id control */
@@ -1260,8 +1328,7 @@ static int show_cpuinfo(struct seq_file
#ifdef CONFIG_SMP
- if (!cpu_online(c-cpu_data))
- return 0;
+ cpu = c->cpu_index;
#endif
seq_printf(m,"processor\t: %u\n"
@@ -1269,7 +1336,7 @@ static int show_cpuinfo(struct seq_file
"cpu family\t: %d\n"
"model\t\t: %d\n"
"model name\t: %s\n",
- (unsigned)(c-cpu_data),
+ (unsigned)cpu,
c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
c->x86,
(int)c->x86_model,
@@ -1281,7 +1348,7 @@ static int show_cpuinfo(struct seq_file
seq_printf(m, "stepping\t: unknown\n");
if (cpu_has(c,X86_FEATURE_TSC)) {
- unsigned int freq = cpufreq_quick_get((unsigned)(c-cpu_data));
+ unsigned int freq = cpufreq_quick_get((unsigned)cpu);
if (!freq)
freq = cpu_khz;
seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
@@ -1294,9 +1361,9 @@ static int show_cpuinfo(struct seq_file
#ifdef CONFIG_SMP
if (smp_num_siblings * c->x86_max_cores > 1) {
- int cpu = c - cpu_data;
seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
- seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[cpu]));
+ seq_printf(m, "siblings\t: %d\n",
+ cpus_weight(per_cpu(cpu_core_map, cpu)));
seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
}
@@ -1351,12 +1418,16 @@ static int show_cpuinfo(struct seq_file
static void *c_start(struct seq_file *m, loff_t *pos)
{
- return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+ if (*pos == 0) /* just in case, cpu 0 is not the first */
+ *pos = first_cpu(cpu_online_map);
+ if ((*pos) < NR_CPUS && cpu_online(*pos))
+ return &cpu_data(*pos);
+ return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
- ++*pos;
+ *pos = next_cpu(*pos, cpu_online_map);
return c_start(m, pos);
}
--- head-2010-05-25.orig/arch/x86/kernel/smp_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/smp_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -72,7 +72,7 @@
*
* B stepping CPUs may hang. There are hardware work arounds
* for this. We warn about it in case your board doesn't have the work
- * arounds. Basically thats so I can tell anyone with a B stepping
+ * arounds. Basically that's so I can tell anyone with a B stepping
* CPU and SMP problems "tough".
*
* Specific items [From Pentium Processor Specification Update]
@@ -241,7 +241,7 @@ void leave_mm(unsigned long cpu)
* 1a1) cpu_clear(cpu, old_mm->cpu_vm_mask);
* Stop ipi delivery for the old mm. This is not synchronized with
* the other cpus, but smp_invalidate_interrupt ignore flush ipis
- * for the wrong mm, and in the worst case we perform a superflous
+ * for the wrong mm, and in the worst case we perform a superfluous
* tlb flush.
* 1a2) set cpu_tlbstate to TLBSTATE_OK
* Now the smp_invalidate_interrupt won't call leave_mm if cpu0
@@ -309,6 +309,7 @@ irqreturn_t smp_invalidate_interrupt(int
smp_mb__after_clear_bit();
out:
put_cpu_no_resched();
+ __get_cpu_var(irq_stat).irq_tlb_count++;
return IRQ_HANDLED;
}
@@ -580,7 +581,7 @@ static void stop_this_cpu (void * dummy)
*/
cpu_clear(smp_processor_id(), cpu_online_map);
disable_all_local_evtchn();
- if (cpu_data[smp_processor_id()].hlt_works_ok)
+ if (cpu_data(smp_processor_id()).hlt_works_ok)
for(;;) halt();
for (;;);
}
@@ -610,6 +611,7 @@ void xen_smp_send_stop(void)
*/
irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id)
{
+ __get_cpu_var(irq_stat).irq_resched_count++;
return IRQ_HANDLED;
}
@@ -632,6 +634,7 @@ irqreturn_t smp_call_function_interrupt(
*/
irq_enter();
(*func)(info);
+ __get_cpu_var(irq_stat).irq_call_count++;
irq_exit();
if (wait) {
--- head-2010-05-25.orig/arch/x86/kernel/smp_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/smp_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -167,6 +167,7 @@ asmlinkage void smp_invalidate_interrupt
out:
ack_APIC_irq();
cpu_clear(cpu, f->flush_cpumask);
+ add_pda(irq_tlb_count, 1);
}
static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
@@ -326,17 +327,27 @@ void unlock_ipi_call_lock(void)
}
/*
- * this function sends a 'generic call function' IPI to one other CPU
- * in the system.
- *
- * cpu is a standard Linux logical CPU number.
+ * this function sends a 'generic call function' IPI to all other CPU
+ * of the system defined in the mask.
*/
-static void
-__smp_call_function_single(int cpu, void (*func) (void *info), void *info,
- int nonatomic, int wait)
+
+static int
+__smp_call_function_mask(cpumask_t mask,
+ void (*func)(void *), void *info,
+ int wait)
{
struct call_data_struct data;
- int cpus = 1;
+ cpumask_t allbutself;
+ int cpus;
+
+ allbutself = cpu_online_map;
+ cpu_clear(smp_processor_id(), allbutself);
+
+ cpus_and(mask, mask, allbutself);
+ cpus = cpus_weight(mask);
+
+ if (!cpus)
+ return 0;
data.func = func;
data.info = info;
@@ -347,19 +358,55 @@ __smp_call_function_single(int cpu, void
call_data = &data;
wmb();
- /* Send a message to all other CPUs and wait for them to respond */
- send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_VECTOR);
+
+ /* Send a message to other CPUs */
+ if (cpus_equal(mask, allbutself))
+ send_IPI_allbutself(CALL_FUNCTION_VECTOR);
+ else
+ send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
/* Wait for response */
while (atomic_read(&data.started) != cpus)
cpu_relax();
if (!wait)
- return;
+ return 0;
while (atomic_read(&data.finished) != cpus)
cpu_relax();
+
+ return 0;
+}
+/**
+ * smp_call_function_mask(): Run a function on a set of other CPUs.
+ * @mask: The set of cpus to run on. Must not include the current cpu.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+int smp_call_function_mask(cpumask_t mask,
+ void (*func)(void *), void *info,
+ int wait)
+{
+ int ret;
+
+ /* Can deadlock when called with interrupts disabled */
+ WARN_ON(irqs_disabled());
+
+ spin_lock(&call_lock);
+ ret = __smp_call_function_mask(mask, func, info, wait);
+ spin_unlock(&call_lock);
+ return ret;
}
+EXPORT_SYMBOL(smp_call_function_mask);
/*
* smp_call_function_single - Run a function on a specific CPU
@@ -378,6 +425,7 @@ int smp_call_function_single (int cpu, v
int nonatomic, int wait)
{
/* prevent preemption and reschedule on another processor */
+ int ret;
int me = get_cpu();
/* Can deadlock when called with interrupts disabled */
@@ -391,51 +439,14 @@ int smp_call_function_single (int cpu, v
return 0;
}
- spin_lock(&call_lock);
- __smp_call_function_single(cpu, func, info, nonatomic, wait);
- spin_unlock(&call_lock);
+ ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
+
put_cpu();
- return 0;
+ return ret;
}
EXPORT_SYMBOL(smp_call_function_single);
/*
- * this function sends a 'generic call function' IPI to all other CPUs
- * in the system.
- */
-static void __smp_call_function (void (*func) (void *info), void *info,
- int nonatomic, int wait)
-{
- struct call_data_struct data;
- int cpus = num_online_cpus()-1;
-
- if (!cpus)
- return;
-
- data.func = func;
- data.info = info;
- atomic_set(&data.started, 0);
- data.wait = wait;
- if (wait)
- atomic_set(&data.finished, 0);
-
- call_data = &data;
- wmb();
- /* Send a message to all other CPUs and wait for them to respond */
- send_IPI_allbutself(CALL_FUNCTION_VECTOR);
-
- /* Wait for response */
- while (atomic_read(&data.started) != cpus)
- cpu_relax();
-
- if (!wait)
- return;
-
- while (atomic_read(&data.finished) != cpus)
- cpu_relax();
-}
-
-/*
* smp_call_function - run a function on all other CPUs.
* @func: The function to run. This must be fast and non-blocking.
* @info: An arbitrary pointer to pass to the function.
@@ -453,10 +464,7 @@ static void __smp_call_function (void (*
int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
int wait)
{
- spin_lock(&call_lock);
- __smp_call_function(func,info,nonatomic,wait);
- spin_unlock(&call_lock);
- return 0;
+ return smp_call_function_mask(cpu_online_map, func, info, wait);
}
EXPORT_SYMBOL(smp_call_function);
@@ -485,7 +493,7 @@ void smp_send_stop(void)
/* Don't deadlock on the call lock in panic */
nolock = !spin_trylock(&call_lock);
local_irq_save(flags);
- __smp_call_function(stop_this_cpu, NULL, 0, 0);
+ __smp_call_function_mask(cpu_online_map, stop_this_cpu, NULL, 0);
if (!nolock)
spin_unlock(&call_lock);
disable_all_local_evtchn();
@@ -505,7 +513,9 @@ asmlinkage irqreturn_t smp_reschedule_in
{
#ifndef CONFIG_XEN
ack_APIC_irq();
-#else
+#endif
+ add_pda(irq_resched_count, 1);
+#ifdef CONFIG_XEN
return IRQ_HANDLED;
#endif
}
@@ -535,6 +545,7 @@ asmlinkage irqreturn_t smp_call_function
exit_idle();
irq_enter();
(*func)(info);
+ add_pda(irq_call_count, 1);
irq_exit();
if (wait) {
mb();
--- head-2010-05-25.orig/arch/x86/kernel/time-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/time-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/i386/kernel/time.c
- *
* Copyright (C) 1991, 1992, 1995 Linus Torvalds
*
* This file contains the PC-specific time handling details:
@@ -73,6 +71,7 @@
#include <asm/arch_hooks.h>
#include <xen/evtchn.h>
+#include <xen/sysctl.h>
#include <xen/interface/vcpu.h>
#include <asm/i8253.h>
@@ -535,6 +534,13 @@ irqreturn_t timer_interrupt(int irq, voi
struct shadow_time_info *shadow = &per_cpu(shadow_time, cpu);
struct vcpu_runstate_info runstate;
+ /* Keep nmi watchdog up to date */
+#ifdef __i386__
+ per_cpu(irq_stat, smp_processor_id()).irq0_irqs++;
+#else
+ add_pda(irq0_irqs, 1);
+#endif
+
/*
* Here we are in the timer irq handler. We just have irqs locally
* disabled but we don't know if the timer_bh is running on the other
@@ -1008,7 +1014,7 @@ static int time_cpufreq_notifier(struct
struct cpufreq_freqs *freq = data;
struct xen_platform_op op;
- if (cpu_has(&cpu_data[freq->cpu], X86_FEATURE_CONSTANT_TSC))
+ if (cpu_has(&cpu_data(freq->cpu), X86_FEATURE_CONSTANT_TSC))
return 0;
if (val == CPUFREQ_PRECHANGE)
@@ -1046,30 +1052,33 @@ core_initcall(cpufreq_time_setup);
*/
static ctl_table xen_subtable[] = {
{
- .ctl_name = 1,
+ .ctl_name = CTL_XEN_INDEPENDENT_WALLCLOCK,
.procname = "independent_wallclock",
.data = &independent_wallclock,
.maxlen = sizeof(independent_wallclock),
.mode = 0644,
+ .strategy = sysctl_data,
.proc_handler = proc_dointvec
},
{
- .ctl_name = 2,
+ .ctl_name = CTL_XEN_PERMITTED_CLOCK_JITTER,
.procname = "permitted_clock_jitter",
.data = &permitted_clock_jitter,
.maxlen = sizeof(permitted_clock_jitter),
.mode = 0644,
+ .strategy = sysctl_data,
.proc_handler = proc_doulongvec_minmax
},
- { 0 }
+ { }
};
static ctl_table xen_table[] = {
{
- .ctl_name = 123,
+ .ctl_name = CTL_XEN,
.procname = "xen",
.mode = 0555,
- .child = xen_subtable},
- { 0 }
+ .child = xen_subtable
+ },
+ { }
};
static int __init xen_sysctl_init(void)
{
--- head-2010-05-25.orig/arch/x86/kernel/traps_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/traps_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/i386/traps.c
- *
* Copyright (C) 1991, 1992 Linus Torvalds
*
* Pentium III FXSR, SSE support
@@ -65,6 +63,11 @@
int panic_on_unrecovered_nmi;
+#ifndef CONFIG_XEN
+DECLARE_BITMAP(used_vectors, NR_VECTORS);
+EXPORT_SYMBOL_GPL(used_vectors);
+#endif
+
asmlinkage int system_call(void);
/* Do we ignore FPU interrupts ? */
@@ -120,7 +123,7 @@ struct stack_frame {
static inline unsigned long print_context_stack(struct thread_info *tinfo,
unsigned long *stack, unsigned long ebp,
- struct stacktrace_ops *ops, void *data)
+ const struct stacktrace_ops *ops, void *data)
{
#ifdef CONFIG_FRAME_POINTER
struct stack_frame *frame = (struct stack_frame *)ebp;
@@ -157,7 +160,7 @@ static inline unsigned long print_contex
void dump_trace(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack,
- struct stacktrace_ops *ops, void *data)
+ const struct stacktrace_ops *ops, void *data)
{
unsigned long ebp = 0;
@@ -229,7 +232,7 @@ static void print_trace_address(void *da
touch_nmi_watchdog();
}
-static struct stacktrace_ops print_trace_ops = {
+static const struct stacktrace_ops print_trace_ops = {
.warning = print_trace_warning,
.warning_symbol = print_trace_warning_symbol,
.stack = print_trace_stack,
@@ -288,6 +291,11 @@ void dump_stack(void)
{
unsigned long stack;
+ printk("Pid: %d, comm: %.20s %s %s %.*s\n",
+ current->pid, current->comm, print_tainted(),
+ init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
show_trace(current, NULL, &stack);
}
@@ -296,48 +304,24 @@ EXPORT_SYMBOL(dump_stack);
void show_registers(struct pt_regs *regs)
{
int i;
- int in_kernel = 1;
- unsigned long esp;
- unsigned short ss, gs;
-
- esp = (unsigned long) (&regs->esp);
- savesegment(ss, ss);
- savesegment(gs, gs);
- if (user_mode_vm(regs)) {
- in_kernel = 0;
- esp = regs->esp;
- ss = regs->xss & 0xffff;
- }
+
print_modules();
- printk(KERN_EMERG "CPU: %d\n"
- KERN_EMERG "EIP: %04x:[<%08lx>] %s VLI\n"
- KERN_EMERG "EFLAGS: %08lx (%s %.*s)\n",
- smp_processor_id(), 0xffff & regs->xcs, regs->eip,
- print_tainted(), regs->eflags, init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
- print_symbol(KERN_EMERG "EIP is at %s\n", regs->eip);
- printk(KERN_EMERG "eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
- regs->eax, regs->ebx, regs->ecx, regs->edx);
- printk(KERN_EMERG "esi: %08lx edi: %08lx ebp: %08lx esp: %08lx\n",
- regs->esi, regs->edi, regs->ebp, esp);
- printk(KERN_EMERG "ds: %04x es: %04x fs: %04x gs: %04x ss: %04x\n",
- regs->xds & 0xffff, regs->xes & 0xffff, regs->xfs & 0xffff, gs, ss);
+ __show_registers(regs, 0);
printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)",
- TASK_COMM_LEN, current->comm, current->pid,
+ TASK_COMM_LEN, current->comm, task_pid_nr(current),
current_thread_info(), current, task_thread_info(current));
/*
* When in-kernel, we also print out the stack and code at the
* time of the fault..
*/
- if (in_kernel) {
+ if (!user_mode_vm(regs)) {
u8 *eip;
unsigned int code_prologue = code_bytes * 43 / 64;
unsigned int code_len = code_bytes;
unsigned char c;
printk("\n" KERN_EMERG "Stack: ");
- show_stack_log_lvl(NULL, regs, (unsigned long *)esp, KERN_EMERG);
+ show_stack_log_lvl(NULL, regs, &regs->esp, KERN_EMERG);
printk(KERN_EMERG "Code: ");
@@ -382,11 +366,11 @@ int is_valid_bugaddr(unsigned long eip)
void die(const char * str, struct pt_regs * regs, long err)
{
static struct {
- spinlock_t lock;
+ raw_spinlock_t lock;
u32 lock_owner;
int lock_owner_depth;
} die = {
- .lock = __SPIN_LOCK_UNLOCKED(die.lock),
+ .lock = __RAW_SPIN_LOCK_UNLOCKED,
.lock_owner = -1,
.lock_owner_depth = 0
};
@@ -397,40 +381,33 @@ void die(const char * str, struct pt_reg
if (die.lock_owner != raw_smp_processor_id()) {
console_verbose();
- spin_lock_irqsave(&die.lock, flags);
+ raw_local_irq_save(flags);
+ __raw_spin_lock(&die.lock);
die.lock_owner = smp_processor_id();
die.lock_owner_depth = 0;
bust_spinlocks(1);
- }
- else
- local_save_flags(flags);
+ } else
+ raw_local_irq_save(flags);
if (++die.lock_owner_depth < 3) {
- int nl = 0;
unsigned long esp;
unsigned short ss;
report_bug(regs->eip, regs);
- printk(KERN_EMERG "%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
+ printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff,
+ ++die_counter);
#ifdef CONFIG_PREEMPT
- printk(KERN_EMERG "PREEMPT ");
- nl = 1;
+ printk("PREEMPT ");
#endif
#ifdef CONFIG_SMP
- if (!nl)
- printk(KERN_EMERG);
printk("SMP ");
- nl = 1;
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
- if (!nl)
- printk(KERN_EMERG);
printk("DEBUG_PAGEALLOC");
- nl = 1;
#endif
- if (nl)
- printk("\n");
+ printk("\n");
+
if (notify_die(DIE_OOPS, str, regs, err,
current->thread.trap_no, SIGSEGV) !=
NOTIFY_STOP) {
@@ -454,7 +431,8 @@ void die(const char * str, struct pt_reg
bust_spinlocks(0);
die.lock_owner = -1;
add_taint(TAINT_DIE);
- spin_unlock_irqrestore(&die.lock, flags);
+ __raw_spin_unlock(&die.lock);
+ raw_local_irq_restore(flags);
if (!regs)
return;
@@ -571,6 +549,7 @@ fastcall void do_##name(struct pt_regs *
info.si_errno = 0; \
info.si_code = sicode; \
info.si_addr = (void __user *)siaddr; \
+ trace_hardirqs_fixup(); \
if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
== NOTIFY_STOP) \
return; \
@@ -606,7 +585,7 @@ fastcall void __kprobes do_general_prote
printk_ratelimit())
printk(KERN_INFO
"%s[%d] general protection eip:%lx esp:%lx error:%lx\n",
- current->comm, current->pid,
+ current->comm, task_pid_nr(current),
regs->eip, regs->esp, error_code);
force_sig(SIGSEGV, current);
@@ -785,6 +764,8 @@ void restart_nmi(void)
#ifdef CONFIG_KPROBES
fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code)
{
+ trace_hardirqs_fixup();
+
if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP)
== NOTIFY_STOP)
return;
@@ -822,6 +803,8 @@ fastcall void __kprobes do_debug(struct
unsigned int condition;
struct task_struct *tsk = current;
+ trace_hardirqs_fixup();
+
get_debugreg(condition, 6);
if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
@@ -1084,20 +1067,6 @@ asmlinkage void math_emulate(long arg)
#endif /* CONFIG_MATH_EMULATION */
-#ifdef CONFIG_X86_F00F_BUG
-void __init trap_init_f00f_bug(void)
-{
- __set_fixmap(FIX_F00F_IDT, __pa(&idt_table), PAGE_KERNEL_RO);
-
- /*
- * Update the IDT descriptor and reload the IDT so that
- * it uses the read-only mapped virtual address.
- */
- idt_descr.address = fix_to_virt(FIX_F00F_IDT);
- load_idt(&idt_descr);
-}
-#endif
-
/*
* NB. All these are "trap gates" (i.e. events_mask isn't set) except
--- head-2010-05-25.orig/arch/x86/kernel/traps_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/traps_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/x86-64/traps.c
- *
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
*
@@ -33,6 +31,7 @@
#include <linux/uaccess.h>
#include <linux/bug.h>
#include <linux/kdebug.h>
+#include <linux/utsname.h>
#if defined(CONFIG_EDAC)
#include <linux/edac.h>
@@ -205,7 +204,7 @@ static unsigned long *in_exception_stack
#define MSG(txt) ops->warning(data, txt)
/*
- * x86-64 can have upto three kernel stacks:
+ * x86-64 can have up to three kernel stacks:
* process stack
* interrupt stack
* severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
@@ -219,7 +218,7 @@ static inline int valid_stack_ptr(struct
void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
unsigned long *stack,
- struct stacktrace_ops *ops, void *data)
+ const struct stacktrace_ops *ops, void *data)
{
const unsigned cpu = get_cpu();
unsigned long *irqstack_end = (unsigned long*)cpu_pda(cpu)->irqstackptr;
@@ -340,7 +339,7 @@ static void print_trace_address(void *da
printk_address(addr);
}
-static struct stacktrace_ops print_trace_ops = {
+static const struct stacktrace_ops print_trace_ops = {
.warning = print_trace_warning,
.warning_symbol = print_trace_warning_symbol,
.stack = print_trace_stack,
@@ -404,6 +403,12 @@ void show_stack(struct task_struct *tsk,
void dump_stack(void)
{
unsigned long dummy;
+
+ printk("Pid: %d, comm: %.20s %s %s %.*s\n",
+ current->pid, current->comm, print_tainted(),
+ init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
show_trace(NULL, NULL, &dummy);
}
@@ -466,7 +471,7 @@ void out_of_line_bug(void)
EXPORT_SYMBOL(out_of_line_bug);
#endif
-static DEFINE_SPINLOCK(die_lock);
+static raw_spinlock_t die_lock = __RAW_SPIN_LOCK_UNLOCKED;
static int die_owner = -1;
static unsigned int die_nest_count;
@@ -478,13 +483,13 @@ unsigned __kprobes long oops_begin(void)
oops_enter();
/* racy, but better than risking deadlock. */
- local_irq_save(flags);
+ raw_local_irq_save(flags);
cpu = smp_processor_id();
- if (!spin_trylock(&die_lock)) {
+ if (!__raw_spin_trylock(&die_lock)) {
if (cpu == die_owner)
/* nested oops. should stop eventually */;
else
- spin_lock(&die_lock);
+ __raw_spin_lock(&die_lock);
}
die_nest_count++;
die_owner = cpu;
@@ -498,12 +503,10 @@ void __kprobes oops_end(unsigned long fl
die_owner = -1;
bust_spinlocks(0);
die_nest_count--;
- if (die_nest_count)
- /* We still own the lock */
- local_irq_restore(flags);
- else
+ if (!die_nest_count)
/* Nest count reaches zero, release the lock. */
- spin_unlock_irqrestore(&die_lock, flags);
+ __raw_spin_unlock(&die_lock);
+ raw_local_irq_restore(flags);
if (panic_on_oops)
panic("Fatal exception");
oops_exit();
@@ -636,6 +639,7 @@ asmlinkage void do_##name(struct pt_regs
info.si_errno = 0; \
info.si_code = sicode; \
info.si_addr = (void __user *)siaddr; \
+ trace_hardirqs_fixup(); \
if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
== NOTIFY_STOP) \
return; \
@@ -741,11 +745,8 @@ mem_parity_error(unsigned char reason, s
printk(KERN_EMERG "Dazed and confused, but trying to continue\n");
-#if 0 /* XEN */
/* Clear and disable the memory parity error line. */
- reason = (reason & 0xf) | 4;
- outb(reason, 0x61);
-#endif /* XEN */
+ clear_mem_error(reason);
}
static __kprobes void
@@ -754,14 +755,8 @@ io_check_error(unsigned char reason, str
printk("NMI: IOCK error (debug interrupt?)\n");
show_registers(regs);
-#if 0 /* XEN */
/* Re-enable the IOCK line, wait for a few seconds */
- reason = (reason & 0xf) | 8;
- outb(reason, 0x61);
- mdelay(2000);
- reason &= ~8;
- outb(reason, 0x61);
-#endif /* XEN */
+ clear_io_check_error(reason);
}
static __kprobes void
@@ -821,6 +816,8 @@ asmlinkage __kprobes void default_do_nmi
/* runs on IST stack. */
asmlinkage void __kprobes do_int3(struct pt_regs * regs, long error_code)
{
+ trace_hardirqs_fixup();
+
if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP) == NOTIFY_STOP) {
return;
}
@@ -858,6 +855,8 @@ asmlinkage void __kprobes do_debug(struc
struct task_struct *tsk = current;
siginfo_t info;
+ trace_hardirqs_fixup();
+
get_debugreg(condition, 6);
if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
--- head-2010-05-25.orig/arch/x86/kernel/vsyscall_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/kernel/vsyscall_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,4 @@
/*
- * linux/arch/x86_64/kernel/vsyscall.c
- *
* Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE
* Copyright 2003 Andi Kleen, SuSE Labs.
*
@@ -50,12 +48,12 @@
({unsigned long v; \
extern char __vsyscall_0; \
asm("" : "=r" (v) : "0" (x)); \
- ((v - VSYSCALL_FIRST_PAGE) + __pa_symbol(&__vsyscall_0)); })
+ ((v - VSYSCALL_START) + __pa_symbol(&__vsyscall_0)); })
/*
* vsyscall_gtod_data contains data that is :
* - readonly from vsyscalls
- * - writen by timer interrupt or systcl (/proc/sys/kernel/vsyscall64)
+ * - written by timer interrupt or systcl (/proc/sys/kernel/vsyscall64)
* Try to keep this structure as small as possible to avoid cache line ping pongs
*/
int __vgetcpu_mode __section_vgetcpu_mode;
@@ -66,6 +64,16 @@ struct vsyscall_gtod_data __vsyscall_gto
.sysctl_enabled = 1,
};
+void update_vsyscall_tz(void)
+{
+ unsigned long flags;
+
+ write_seqlock_irqsave(&vsyscall_gtod_data.lock, flags);
+ /* sys_tz has changed */
+ vsyscall_gtod_data.sys_tz = sys_tz;
+ write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags);
+}
+
void update_vsyscall(struct timespec *wall_time, struct clocksource *clock)
{
unsigned long flags;
@@ -79,8 +87,6 @@ void update_vsyscall(struct timespec *wa
vsyscall_gtod_data.clock.shift = clock->shift;
vsyscall_gtod_data.wall_time_sec = wall_time->tv_sec;
vsyscall_gtod_data.wall_time_nsec = wall_time->tv_nsec;
- vsyscall_gtod_data.sys_tz = sys_tz;
- vsyscall_gtod_data.wall_time_nsec = wall_time->tv_nsec;
vsyscall_gtod_data.wall_to_monotonic = wall_to_monotonic;
write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags);
}
@@ -166,7 +172,7 @@ time_t __vsyscall(1) vtime(time_t *t)
if (unlikely(!__vsyscall_gtod_data.sysctl_enabled))
return time_syscall(t);
- vgettimeofday(&tv, 0);
+ vgettimeofday(&tv, NULL);
result = tv.tv_sec;
if (t)
*t = result;
@@ -260,18 +266,10 @@ out:
return ret;
}
-static int vsyscall_sysctl_nostrat(ctl_table *t, int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen)
-{
- return -ENOSYS;
-}
-
static ctl_table kernel_table2[] = {
- { .ctl_name = 99, .procname = "vsyscall64",
+ { .procname = "vsyscall64",
.data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int),
.mode = 0644,
- .strategy = vsyscall_sysctl_nostrat,
.proc_handler = vsyscall_sysctl_change },
{}
};
@@ -291,9 +289,9 @@ static void __cpuinit vsyscall_set_cpu(i
unsigned long d;
unsigned long node = 0;
#ifdef CONFIG_NUMA
- node = cpu_to_node[cpu];
+ node = cpu_to_node(cpu);
#endif
- if (cpu_has(&cpu_data[cpu], X86_FEATURE_RDTSCP))
+ if (cpu_has(&cpu_data(cpu), X86_FEATURE_RDTSCP))
write_rdtscp_aux((node << 12) | cpu);
/* Store cpu number in limit so that it can be loaded quickly
--- head-2010-05-25.orig/arch/x86/mm/fault_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/mm/fault_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -25,6 +25,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/kdebug.h>
+#include <linux/kprobes.h>
#include <asm/system.h>
#include <asm/desc.h>
@@ -32,33 +33,27 @@
extern void die(const char *,struct pt_regs *,long);
-static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
-
-int register_page_fault_notifier(struct notifier_block *nb)
+#ifdef CONFIG_KPROBES
+static inline int notify_page_fault(struct pt_regs *regs)
{
- vmalloc_sync_all();
- return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
-}
-EXPORT_SYMBOL_GPL(register_page_fault_notifier);
+ int ret = 0;
-int unregister_page_fault_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_page_fault_notifier);
+ /* kprobe_running() needs smp_processor_id() */
+ if (!user_mode_vm(regs)) {
+ preempt_disable();
+ if (kprobe_running() && kprobe_fault_handler(regs, 14))
+ ret = 1;
+ preempt_enable();
+ }
-static inline int notify_page_fault(struct pt_regs *regs, long err)
+ return ret;
+}
+#else
+static inline int notify_page_fault(struct pt_regs *regs)
{
- struct die_args args = {
- .regs = regs,
- .str = "page fault",
- .err = err,
- .trapnr = 14,
- .signr = SIGSEGV
- };
- return atomic_notifier_call_chain(&notify_page_fault_chain,
- DIE_PAGE_FAULT, &args);
+ return 0;
}
+#endif
/*
* Return EIP plus the CS segment base. The segment limit is also
@@ -110,7 +105,7 @@ static inline unsigned long get_segment_
LDT and other horrors are only used in user space. */
if (seg & (1<<2)) {
/* Must lock the LDT while reading it. */
- down(&current->mm->context.sem);
+ mutex_lock(&current->mm->context.lock);
desc = current->mm->context.ldt;
desc = (void *)desc + (seg & ~7);
} else {
@@ -123,7 +118,7 @@ static inline unsigned long get_segment_
base = get_desc_base((unsigned long *)desc);
if (seg & (1<<2)) {
- up(&current->mm->context.sem);
+ mutex_unlock(&current->mm->context.lock);
} else
put_cpu();
@@ -244,7 +239,7 @@ static void dump_fault_path(unsigned lon
if (mfn_to_pfn(mfn) >= highstart_pfn)
return;
#endif
- if (p[0] & _PAGE_PRESENT) {
+ if ((p[0] & _PAGE_PRESENT) && !(p[0] & _PAGE_PSE)) {
page = mfn_to_pfn(mfn) << PAGE_SHIFT;
p = (unsigned long *) __va(page);
address &= 0x001fffff;
@@ -270,7 +265,8 @@ static void dump_fault_path(unsigned lon
* it's allocated already.
*/
if ((machine_to_phys(page) >> PAGE_SHIFT) < max_low_pfn
- && (page & _PAGE_PRESENT)) {
+ && (page & _PAGE_PRESENT)
+ && !(page & _PAGE_PSE)) {
page = machine_to_phys(page & PAGE_MASK);
page = ((unsigned long *) __va(page))[(address >> PAGE_SHIFT)
& (PTRS_PER_PTE - 1)];
@@ -416,6 +412,11 @@ fastcall void __kprobes do_page_fault(st
int write, si_code;
int fault;
+ /*
+ * We can fault from pretty much anywhere, with unknown IRQ state.
+ */
+ trace_hardirqs_fixup();
+
/* get the address */
address = read_cr2();
@@ -453,7 +454,7 @@ fastcall void __kprobes do_page_fault(st
/* Can take a spurious fault if mapping changes R/O -> R/W. */
if (spurious_fault(regs, address, error_code))
return;
- if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
+ if (notify_page_fault(regs))
return;
/*
* Don't take the mm semaphore here. If we fixup a prefetch
@@ -462,7 +463,7 @@ fastcall void __kprobes do_page_fault(st
goto bad_area_nosemaphore;
}
- if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
+ if (notify_page_fault(regs))
return;
/* It's safe to allow irq's after cr2 has been saved and the vmalloc
@@ -481,7 +482,7 @@ fastcall void __kprobes do_page_fault(st
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the
- * kernel and should generate an OOPS. Unfortunatly, in the case of an
+ * kernel and should generate an OOPS. Unfortunately, in the case of an
* erroneous fault occurring in a code path which already holds mmap_sem
* we will deadlock attempting to validate the fault against the
* address space. Luckily the kernel only validly references user
@@ -489,7 +490,7 @@ fastcall void __kprobes do_page_fault(st
* exceptions table.
*
* As the vast majority of faults will be valid we will only perform
- * the source reference check when there is a possibilty of a deadlock.
+ * the source reference check when there is a possibility of a deadlock.
* Attempt to lock the address space, if we cannot we then validate the
* source. If this is invalid we can skip the address space check,
* thus avoiding the deadlock.
@@ -598,8 +599,8 @@ bad_area_nosemaphore:
printk_ratelimit()) {
printk("%s%s[%d]: segfault at %08lx eip %08lx "
"esp %08lx error %lx\n",
- tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
- tsk->comm, tsk->pid, address, regs->eip,
+ task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
+ tsk->comm, task_pid_nr(tsk), address, regs->eip,
regs->esp, error_code);
}
tsk->thread.cr2 = address;
@@ -664,8 +665,7 @@ no_context:
printk(KERN_ALERT "BUG: unable to handle kernel paging"
" request");
printk(" at virtual address %08lx\n",address);
- printk(KERN_ALERT " printing eip:\n");
- printk("%08lx\n", regs->eip);
+ printk(KERN_ALERT "printing eip: %08lx\n", regs->eip);
dump_fault_path(address);
}
tsk->thread.cr2 = address;
@@ -681,14 +681,14 @@ no_context:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- if (is_init(tsk)) {
+ if (is_global_init(tsk)) {
yield();
down_read(&mm->mmap_sem);
goto survive;
}
printk("VM: killing process %s\n", tsk->comm);
if (error_code & 4)
- do_exit(SIGKILL);
+ do_group_exit(SIGKILL);
goto no_context;
do_sigbus:
--- head-2010-05-25.orig/arch/x86/mm/fault_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/mm/fault_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -25,6 +25,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/kdebug.h>
+#include <linux/kprobes.h>
#include <asm/system.h>
#include <asm/pgalloc.h>
@@ -40,34 +41,27 @@
#define PF_RSVD (1<<3)
#define PF_INSTR (1<<4)
-static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
-
-/* Hook to register for page fault notifications */
-int register_page_fault_notifier(struct notifier_block *nb)
+#ifdef CONFIG_KPROBES
+static inline int notify_page_fault(struct pt_regs *regs)
{
- vmalloc_sync_all();
- return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
-}
-EXPORT_SYMBOL_GPL(register_page_fault_notifier);
+ int ret = 0;
-int unregister_page_fault_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_page_fault_notifier);
+ /* kprobe_running() needs smp_processor_id() */
+ if (!user_mode(regs)) {
+ preempt_disable();
+ if (kprobe_running() && kprobe_fault_handler(regs, 14))
+ ret = 1;
+ preempt_enable();
+ }
-static inline int notify_page_fault(struct pt_regs *regs, long err)
+ return ret;
+}
+#else
+static inline int notify_page_fault(struct pt_regs *regs)
{
- struct die_args args = {
- .regs = regs,
- .str = "page fault",
- .err = err,
- .trapnr = 14,
- .signr = SIGSEGV
- };
- return atomic_notifier_call_chain(&notify_page_fault_chain,
- DIE_PAGE_FAULT, &args);
+ return 0;
}
+#endif
/* Sometimes the CPU reports invalid exceptions on prefetch.
Check that here and ignore.
@@ -175,7 +169,7 @@ void dump_pagetable(unsigned long addres
pmd = pmd_offset(pud, address);
if (bad_address(pmd)) goto bad;
printk("PMD %lx ", pmd_val(*pmd));
- if (!pmd_present(*pmd)) goto ret;
+ if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;
pte = pte_offset_kernel(pmd, address);
if (bad_address(pte)) goto bad;
@@ -294,7 +288,6 @@ static int vmalloc_fault(unsigned long a
return 0;
}
-static int page_fault_trace;
int show_unhandled_signals = 1;
@@ -371,6 +364,11 @@ asmlinkage void __kprobes do_page_fault(
if (!user_mode(regs))
error_code &= ~PF_USER; /* means kernel */
+ /*
+ * We can fault from pretty much anywhere, with unknown IRQ state.
+ */
+ trace_hardirqs_fixup();
+
tsk = current;
mm = tsk->mm;
prefetchw(&mm->mmap_sem);
@@ -408,7 +406,7 @@ asmlinkage void __kprobes do_page_fault(
/* Can take a spurious fault if mapping changes R/O -> R/W. */
if (spurious_fault(regs, address, error_code))
return;
- if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
+ if (notify_page_fault(regs))
return;
/*
* Don't take the mm semaphore here. If we fixup a prefetch
@@ -417,16 +415,12 @@ asmlinkage void __kprobes do_page_fault(
goto bad_area_nosemaphore;
}
- if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
+ if (notify_page_fault(regs))
return;
if (likely(regs->eflags & X86_EFLAGS_IF))
local_irq_enable();
- if (unlikely(page_fault_trace))
- printk("pagefault rip:%lx rsp:%lx cs:%lu ss:%lu address %lx error %lx\n",
- regs->rip,regs->rsp,regs->cs,regs->ss,address,error_code);
-
if (unlikely(error_code & PF_RSVD))
pgtable_bad(address, regs, error_code);
@@ -447,7 +441,7 @@ asmlinkage void __kprobes do_page_fault(
again:
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the
- * kernel and should generate an OOPS. Unfortunatly, in the case of an
+ * kernel and should generate an OOPS. Unfortunately, in the case of an
* erroneous fault occurring in a code path which already holds mmap_sem
* we will deadlock attempting to validate the fault against the
* address space. Luckily the kernel only validly references user
@@ -455,7 +449,7 @@ asmlinkage void __kprobes do_page_fault(
* exceptions table.
*
* As the vast majority of faults will be valid we will only perform
- * the source reference check when there is a possibilty of a deadlock.
+ * the source reference check when there is a possibility of a deadlock.
* Attempt to lock the address space, if we cannot we then validate the
* source. If this is invalid we can skip the address space check,
* thus avoiding the deadlock.
@@ -557,7 +551,7 @@ bad_area_nosemaphore:
if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
printk_ratelimit()) {
printk(
- "%s%s[%d]: segfault at %016lx rip %016lx rsp %016lx error %lx\n",
+ "%s%s[%d]: segfault at %lx rip %lx rsp %lx error %lx\n",
tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
tsk->comm, tsk->pid, address, regs->rip,
regs->rsp, error_code);
@@ -623,7 +617,7 @@ no_context:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- if (is_init(current)) {
+ if (is_global_init(current)) {
yield();
goto again;
}
@@ -690,10 +684,3 @@ void vmalloc_sync_all(void)
BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
(__START_KERNEL & PGDIR_MASK)));
}
-
-static int __init enable_pagefaulttrace(char *str)
-{
- page_fault_trace = 1;
- return 1;
-}
-__setup("pagefaulttrace", enable_pagefaulttrace);
--- head-2010-05-25.orig/arch/x86/mm/hypervisor.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/mm/hypervisor.c 2010-03-24 15:10:29.000000000 +0100
@@ -500,6 +500,9 @@ int xen_create_contiguous_region(
unsigned long frame, flags;
unsigned int i;
int rc, success;
+#ifdef CONFIG_64BIT
+ pte_t *ptep = NULL;
+#endif
struct xen_memory_exchange exchange = {
.in = {
.nr_extents = 1UL << order,
@@ -525,6 +528,27 @@ int xen_create_contiguous_region(
if (unlikely(order > MAX_CONTIG_ORDER))
return -ENOMEM;
+#ifdef CONFIG_64BIT
+ if (unlikely(vstart > PAGE_OFFSET + MAXMEM)) {
+ unsigned int level;
+
+ if (vstart < __START_KERNEL_map
+ || vstart + (PAGE_SIZE << order) > (unsigned long)_end)
+ return -EINVAL;
+ ptep = lookup_address((unsigned long)__va(__pa(vstart)),
+ &level);
+ if (ptep && pte_none(*ptep))
+ ptep = NULL;
+ if (vstart < __START_KERNEL && ptep)
+ return -EINVAL;
+ if (order > MAX_CONTIG_ORDER - 1)
+ return -ENOMEM;
+ }
+#else
+ if (unlikely(vstart + (PAGE_SIZE << order) > (unsigned long)high_memory))
+ return -EINVAL;
+#endif
+
set_xen_guest_handle(exchange.in.extent_start, in_frames);
set_xen_guest_handle(exchange.out.extent_start, &out_frame);
@@ -537,9 +561,19 @@ int xen_create_contiguous_region(
in_frames[i] = pfn_to_mfn((__pa(vstart) >> PAGE_SHIFT) + i);
MULTI_update_va_mapping(cr_mcl + i, vstart + (i*PAGE_SIZE),
__pte_ma(0), 0);
+#ifdef CONFIG_64BIT
+ if (ptep)
+ MULTI_update_va_mapping(cr_mcl + i + (1U << order),
+ (unsigned long)__va(__pa(vstart)) + (i*PAGE_SIZE),
+ __pte_ma(0), 0);
+#endif
set_phys_to_machine((__pa(vstart)>>PAGE_SHIFT)+i,
INVALID_P2M_ENTRY);
}
+#ifdef CONFIG_64BIT
+ if (ptep)
+ i += i;
+#endif
if (HYPERVISOR_multicall_check(cr_mcl, i, NULL))
BUG();
@@ -573,9 +607,18 @@ int xen_create_contiguous_region(
frame = success ? (out_frame + i) : in_frames[i];
MULTI_update_va_mapping(cr_mcl + i, vstart + (i*PAGE_SIZE),
pfn_pte_ma(frame, PAGE_KERNEL), 0);
+#ifdef CONFIG_64BIT
+ if (ptep)
+ MULTI_update_va_mapping(cr_mcl + i + (1U << order),
+ (unsigned long)__va(__pa(vstart)) + (i*PAGE_SIZE),
+ pfn_pte_ma(frame, PAGE_KERNEL_RO), 0);
+#endif
set_phys_to_machine((__pa(vstart)>>PAGE_SHIFT)+i, frame);
}
-
+#ifdef CONFIG_64BIT
+ if (ptep)
+ i += i;
+#endif
cr_mcl[i - 1].args[MULTI_UVMFLAGS_INDEX] = order
? UVMF_TLB_FLUSH|UVMF_ALL
: UVMF_INVLPG|UVMF_ALL;
--- head-2010-05-25.orig/arch/x86/mm/init_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/mm/init_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -94,7 +94,14 @@ static pte_t * __init one_page_table_ini
#else
if (!(__pmd_val(*pmd) & _PAGE_PRESENT)) {
#endif
- pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ pte_t *page_table = NULL;
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+ page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE);
+#endif
+ if (!page_table)
+ page_table =
+ (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
paravirt_alloc_pt(&init_mm, __pa(page_table) >> PAGE_SHIFT);
make_lowmem_page_readonly(page_table,
@@ -102,7 +109,7 @@ static pte_t * __init one_page_table_ini
set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
BUG_ON(page_table != pte_offset_kernel(pmd, 0));
}
-
+
return pte_offset_kernel(pmd, 0);
}
@@ -360,8 +367,13 @@ static void __init set_highmem_pages_ini
{
int pfn;
for (pfn = highstart_pfn; pfn < highend_pfn
- && pfn < xen_start_info->nr_pages; pfn++)
- add_one_highpage_init(pfn_to_page(pfn), pfn, bad_ppro);
+ && pfn < xen_start_info->nr_pages; pfn++) {
+ /*
+ * Holes under sparsemem might not have no mem_map[]:
+ */
+ if (pfn_valid(pfn))
+ add_one_highpage_init(pfn_to_page(pfn), pfn, bad_ppro);
+ }
/* XEN: init high-mem pages outside initial allocation. */
for (; pfn < highend_pfn; pfn++) {
@@ -785,35 +797,18 @@ int arch_add_memory(int nid, u64 start,
return __add_pages(zone, start_pfn, nr_pages);
}
-int remove_memory(u64 start, u64 size)
-{
- return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(remove_memory);
#endif
struct kmem_cache *pmd_cache;
void __init pgtable_cache_init(void)
{
- size_t pgd_size = PTRS_PER_PGD*sizeof(pgd_t);
-
- if (PTRS_PER_PMD > 1) {
+ if (PTRS_PER_PMD > 1)
pmd_cache = kmem_cache_create("pmd",
- PTRS_PER_PMD*sizeof(pmd_t),
- PTRS_PER_PMD*sizeof(pmd_t),
- SLAB_PANIC,
- pmd_ctor);
- if (!SHARED_KERNEL_PMD) {
- /* If we're in PAE mode and have a non-shared
- kernel pmd, then the pgd size must be a
- page size. This is because the pgd_list
- links through the page structure, so there
- can only be one pgd per page for this to
- work. */
- pgd_size = PAGE_SIZE;
- }
- }
+ PTRS_PER_PMD*sizeof(pmd_t),
+ PTRS_PER_PMD*sizeof(pmd_t),
+ SLAB_PANIC,
+ pmd_ctor);
}
/*
--- head-2010-05-25.orig/arch/x86/mm/init_64-xen.c 2010-04-29 09:47:49.000000000 +0200
+++ head-2010-05-25/arch/x86/mm/init_64-xen.c 2010-04-29 09:48:00.000000000 +0200
@@ -798,7 +798,7 @@ static void xen_finish_init_mapping(void
/* Setup the direct mapping of the physical memory at PAGE_OFFSET.
This runs before bootmem is initialized and gets pages directly from the
physical memory. To access them they are temporarily mapped. */
-void __meminit init_memory_mapping(unsigned long start, unsigned long end)
+void __init_refok init_memory_mapping(unsigned long start, unsigned long end)
{
unsigned long next;
@@ -932,12 +932,6 @@ error:
}
EXPORT_SYMBOL_GPL(arch_add_memory);
-int remove_memory(u64 start, u64 size)
-{
- return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(remove_memory);
-
#if !defined(CONFIG_ACPI_NUMA) && defined(CONFIG_NUMA)
int memory_add_physaddr_to_nid(u64 start)
{
@@ -1216,14 +1210,6 @@ int in_gate_area_no_task(unsigned long a
return (addr >= VSYSCALL_START) && (addr < VSYSCALL_END);
}
-#ifndef CONFIG_XEN
-void * __init alloc_bootmem_high_node(pg_data_t *pgdat, unsigned long size)
-{
- return __alloc_bootmem_core(pgdat->bdata, size,
- SMP_CACHE_BYTES, (4UL*1024*1024*1024), 0);
-}
-#endif
-
const char *arch_vma_name(struct vm_area_struct *vma)
{
if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
@@ -1232,3 +1218,48 @@ const char *arch_vma_name(struct vm_area
return "[vsyscall]";
return NULL;
}
+
+#ifdef CONFIG_SPARSEMEM_VMEMMAP
+/*
+ * Initialise the sparsemem vmemmap using huge-pages at the PMD level.
+ */
+int __meminit vmemmap_populate(struct page *start_page,
+ unsigned long size, int node)
+{
+ unsigned long addr = (unsigned long)start_page;
+ unsigned long end = (unsigned long)(start_page + size);
+ unsigned long next;
+ pgd_t *pgd;
+ pud_t *pud;
+ pmd_t *pmd;
+
+ for (; addr < end; addr = next) {
+ next = pmd_addr_end(addr, end);
+
+ pgd = vmemmap_pgd_populate(addr, node);
+ if (!pgd)
+ return -ENOMEM;
+ pud = vmemmap_pud_populate(pgd, addr, node);
+ if (!pud)
+ return -ENOMEM;
+
+ pmd = pmd_offset(pud, addr);
+ if (pmd_none(*pmd)) {
+ pte_t entry;
+ void *p = vmemmap_alloc_block(PMD_SIZE, node);
+ if (!p)
+ return -ENOMEM;
+
+ entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL);
+ mk_pte_huge(entry);
+ set_pmd(pmd, __pmd(pte_val(entry)));
+
+ printk(KERN_DEBUG " [%lx-%lx] PMD ->%p on node %d\n",
+ addr, addr + PMD_SIZE - 1, p, node);
+ } else
+ vmemmap_verify((pte_t *)pmd, node, addr, next);
+ }
+
+ return 0;
+}
+#endif
--- head-2010-05-25.orig/arch/x86/mm/pageattr_64-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/mm/pageattr_64-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -17,9 +17,6 @@
#include <asm/pgalloc.h>
#include <asm/mmu_context.h>
-LIST_HEAD(mm_unpinned);
-DEFINE_SPINLOCK(mm_unpinned_lock);
-
static void _pin_lock(struct mm_struct *mm, int lock) {
if (lock)
spin_lock(&mm->page_table_lock);
@@ -81,8 +78,8 @@ static void _pin_lock(struct mm_struct *
#define PIN_BATCH 8
static DEFINE_PER_CPU(multicall_entry_t[PIN_BATCH], pb_mcl);
-static inline unsigned int mm_walk_set_prot(void *pt, pgprot_t flags,
- unsigned int cpu, unsigned int seq)
+static inline unsigned int pgd_walk_set_prot(void *pt, pgprot_t flags,
+ unsigned int cpu, unsigned int seq)
{
struct page *page = virt_to_page(pt);
unsigned long pfn = page_to_pfn(page);
@@ -100,9 +97,9 @@ static inline unsigned int mm_walk_set_p
return seq;
}
-static void mm_walk(struct mm_struct *mm, pgprot_t flags)
+static void pgd_walk(pgd_t *pgd_base, pgprot_t flags)
{
- pgd_t *pgd;
+ pgd_t *pgd = pgd_base;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -110,7 +107,6 @@ static void mm_walk(struct mm_struct *mm
unsigned int cpu, seq;
multicall_entry_t *mcl;
- pgd = mm->pgd;
cpu = get_cpu();
/*
@@ -125,18 +121,18 @@ static void mm_walk(struct mm_struct *mm
continue;
pud = pud_offset(pgd, 0);
if (PTRS_PER_PUD > 1) /* not folded */
- seq = mm_walk_set_prot(pud,flags,cpu,seq);
+ seq = pgd_walk_set_prot(pud,flags,cpu,seq);
for (u = 0; u < PTRS_PER_PUD; u++, pud++) {
if (pud_none(*pud))
continue;
pmd = pmd_offset(pud, 0);
if (PTRS_PER_PMD > 1) /* not folded */
- seq = mm_walk_set_prot(pmd,flags,cpu,seq);
+ seq = pgd_walk_set_prot(pmd,flags,cpu,seq);
for (m = 0; m < PTRS_PER_PMD; m++, pmd++) {
if (pmd_none(*pmd))
continue;
pte = pte_offset_kernel(pmd,0);
- seq = mm_walk_set_prot(pte,flags,cpu,seq);
+ seq = pgd_walk_set_prot(pte,flags,cpu,seq);
}
}
}
@@ -148,12 +144,12 @@ static void mm_walk(struct mm_struct *mm
seq = 0;
}
MULTI_update_va_mapping(mcl + seq,
- (unsigned long)__user_pgd(mm->pgd),
- pfn_pte(virt_to_phys(__user_pgd(mm->pgd))>>PAGE_SHIFT, flags),
+ (unsigned long)__user_pgd(pgd_base),
+ pfn_pte(virt_to_phys(__user_pgd(pgd_base))>>PAGE_SHIFT, flags),
0);
MULTI_update_va_mapping(mcl + seq + 1,
- (unsigned long)mm->pgd,
- pfn_pte(virt_to_phys(mm->pgd)>>PAGE_SHIFT, flags),
+ (unsigned long)pgd_base,
+ pfn_pte(virt_to_phys(pgd_base)>>PAGE_SHIFT, flags),
UVMF_TLB_FLUSH);
if (unlikely(HYPERVISOR_multicall_check(mcl, seq + 2, NULL)))
BUG();
@@ -161,21 +157,35 @@ static void mm_walk(struct mm_struct *mm
put_cpu();
}
+static void __pgd_pin(pgd_t *pgd)
+{
+ pgd_walk(pgd, PAGE_KERNEL_RO);
+ xen_pgd_pin(__pa(pgd)); /* kernel */
+ xen_pgd_pin(__pa(__user_pgd(pgd))); /* user */
+ SetPagePinned(virt_to_page(pgd));
+}
+
+static void __pgd_unpin(pgd_t *pgd)
+{
+ xen_pgd_unpin(__pa(pgd));
+ xen_pgd_unpin(__pa(__user_pgd(pgd)));
+ pgd_walk(pgd, PAGE_KERNEL);
+ ClearPagePinned(virt_to_page(pgd));
+}
+
+void pgd_test_and_unpin(pgd_t *pgd)
+{
+ if (PagePinned(virt_to_page(pgd)))
+ __pgd_unpin(pgd);
+}
+
void mm_pin(struct mm_struct *mm)
{
if (xen_feature(XENFEAT_writable_page_tables))
return;
pin_lock(mm);
-
- mm_walk(mm, PAGE_KERNEL_RO);
- xen_pgd_pin(__pa(mm->pgd)); /* kernel */
- xen_pgd_pin(__pa(__user_pgd(mm->pgd))); /* user */
- SetPagePinned(virt_to_page(mm->pgd));
- spin_lock(&mm_unpinned_lock);
- list_del(&mm->context.unpinned);
- spin_unlock(&mm_unpinned_lock);
-
+ __pgd_pin(mm->pgd);
pin_unlock(mm);
}
@@ -185,34 +195,30 @@ void mm_unpin(struct mm_struct *mm)
return;
pin_lock(mm);
-
- xen_pgd_unpin(__pa(mm->pgd));
- xen_pgd_unpin(__pa(__user_pgd(mm->pgd)));
- mm_walk(mm, PAGE_KERNEL);
- ClearPagePinned(virt_to_page(mm->pgd));
- spin_lock(&mm_unpinned_lock);
- list_add(&mm->context.unpinned, &mm_unpinned);
- spin_unlock(&mm_unpinned_lock);
-
+ __pgd_unpin(mm->pgd);
pin_unlock(mm);
}
void mm_pin_all(void)
{
+ struct page *page;
+ unsigned long flags;
+
if (xen_feature(XENFEAT_writable_page_tables))
return;
/*
- * Allow uninterrupted access to the mm_unpinned list. We don't
- * actually take the mm_unpinned_lock as it is taken inside mm_pin().
+ * Allow uninterrupted access to the pgd_list. Also protects
+ * __pgd_pin() by disabling preemption.
* All other CPUs must be at a safe point (e.g., in stop_machine
* or offlined entirely).
*/
- preempt_disable();
- while (!list_empty(&mm_unpinned))
- mm_pin(list_entry(mm_unpinned.next, struct mm_struct,
- context.unpinned));
- preempt_enable();
+ spin_lock_irqsave(&pgd_lock, flags);
+ list_for_each_entry(page, &pgd_list, lru) {
+ if (!PagePinned(page))
+ __pgd_pin((pgd_t *)page_address(page));
+ }
+ spin_unlock_irqrestore(&pgd_lock, flags);
}
void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
@@ -331,11 +337,11 @@ static struct page *split_large_page(uns
return base;
}
-static void cache_flush_page(void *adr)
+void clflush_cache_range(void *adr, int size)
{
int i;
- for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
- asm volatile("clflush (%0)" :: "r" (adr + i));
+ for (i = 0; i < size; i += boot_cpu_data.x86_clflush_size)
+ clflush(adr+i);
}
static void flush_kernel_map(void *arg)
@@ -350,7 +356,7 @@ static void flush_kernel_map(void *arg)
asm volatile("wbinvd" ::: "memory");
else list_for_each_entry(pg, l, lru) {
void *adr = page_address(pg);
- cache_flush_page(adr);
+ clflush_cache_range(adr, PAGE_SIZE);
}
__flush_tlb_all();
}
@@ -418,6 +424,7 @@ __change_page_attr(unsigned long address
split = split_large_page(address, prot, ref_prot2);
if (!split)
return -ENOMEM;
+ pgprot_val(ref_prot2) &= ~_PAGE_NX;
set_pte(kpte, mk_pte(split, ref_prot2));
kpte_page = split;
}
@@ -510,9 +517,14 @@ void global_flush_tlb(void)
struct page *pg, *next;
struct list_head l;
- down_read(&init_mm.mmap_sem);
+ /*
+ * Write-protect the semaphore, to exclude two contexts
+ * doing a list_replace_init() call in parallel and to
+ * exclude new additions to the deferred_pages list:
+ */
+ down_write(&init_mm.mmap_sem);
list_replace_init(&deferred_pages, &l);
- up_read(&init_mm.mmap_sem);
+ up_write(&init_mm.mmap_sem);
flush_map(&l);
--- head-2010-05-25.orig/arch/x86/mm/pgtable_32-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/mm/pgtable_32-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/mm.h>
+#include <linux/nmi.h>
#include <linux/swap.h>
#include <linux/smp.h>
#include <linux/highmem.h>
@@ -46,6 +47,8 @@ void show_mem(void)
for_each_online_pgdat(pgdat) {
pgdat_resize_lock(pgdat, &flags);
for (i = 0; i < pgdat->node_spanned_pages; ++i) {
+ if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
+ touch_nmi_watchdog();
page = pgdat_page_nr(pgdat, i);
total++;
if (PageHighMem(page))
@@ -206,7 +209,7 @@ void pte_free(struct page *pte)
__free_page(pte);
}
-void pmd_ctor(void *pmd, struct kmem_cache *cache, unsigned long flags)
+void pmd_ctor(struct kmem_cache *cache, void *pmd)
{
memset(pmd, 0, PTRS_PER_PMD*sizeof(pmd_t));
}
--- head-2010-05-25.orig/arch/x86/pci/irq-xen.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/arch/x86/pci/irq-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -173,7 +173,7 @@ void eisa_set_level_irq(unsigned int irq
}
/*
- * Common IRQ routing practice: nybbles in config space,
+ * Common IRQ routing practice: nibbles in config space,
* offset by some magic constant.
*/
static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr)
@@ -496,6 +496,26 @@ static int pirq_amd756_set(struct pci_de
return 1;
}
+/*
+ * PicoPower PT86C523
+ */
+static int pirq_pico_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
+{
+ outb(0x10 + ((pirq - 1) >> 1), 0x24);
+ return ((pirq - 1) & 1) ? (inb(0x26) >> 4) : (inb(0x26) & 0xf);
+}
+
+static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
+ int irq)
+{
+ unsigned int x;
+ outb(0x10 + ((pirq - 1) >> 1), 0x24);
+ x = inb(0x26);
+ x = ((pirq - 1) & 1) ? ((x & 0x0f) | (irq << 4)) : ((x & 0xf0) | (irq));
+ outb(x, 0x26);
+ return 1;
+}
+
#ifdef CONFIG_PCI_BIOS
static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
@@ -569,7 +589,7 @@ static __init int via_router_probe(struc
/* FIXME: We should move some of the quirk fixup stuff here */
/*
- * work arounds for some buggy BIOSes
+ * workarounds for some buggy BIOSes
*/
if (device == PCI_DEVICE_ID_VIA_82C586_0) {
switch(router->device) {
@@ -725,6 +745,24 @@ static __init int amd_router_probe(struc
return 1;
}
+static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
+{
+ switch (device) {
+ case PCI_DEVICE_ID_PICOPOWER_PT86C523:
+ r->name = "PicoPower PT86C523";
+ r->get = pirq_pico_get;
+ r->set = pirq_pico_set;
+ return 1;
+
+ case PCI_DEVICE_ID_PICOPOWER_PT86C523BBP:
+ r->name = "PicoPower PT86C523 rev. BB+";
+ r->get = pirq_pico_get;
+ r->set = pirq_pico_set;
+ return 1;
+ }
+ return 0;
+}
+
static __initdata struct irq_router_handler pirq_routers[] = {
{ PCI_VENDOR_ID_INTEL, intel_router_probe },
{ PCI_VENDOR_ID_AL, ali_router_probe },
@@ -736,6 +774,7 @@ static __initdata struct irq_router_hand
{ PCI_VENDOR_ID_VLSI, vlsi_router_probe },
{ PCI_VENDOR_ID_SERVERWORKS, serverworks_router_probe },
{ PCI_VENDOR_ID_AMD, amd_router_probe },
+ { PCI_VENDOR_ID_PICOPOWER, pico_router_probe },
/* Someone with docs needs to add the ATI Radeon IGP */
{ 0, NULL }
};
@@ -1014,7 +1053,7 @@ static void __init pcibios_fixup_irqs(vo
* Work around broken HP Pavilion Notebooks which assign USB to
* IRQ 9 even though it is actually wired to IRQ 11
*/
-static int __init fix_broken_hp_bios_irq9(struct dmi_system_id *d)
+static int __init fix_broken_hp_bios_irq9(const struct dmi_system_id *d)
{
if (!broken_hp_bios_irq9) {
broken_hp_bios_irq9 = 1;
@@ -1027,7 +1066,7 @@ static int __init fix_broken_hp_bios_irq
* Work around broken Acer TravelMate 360 Notebooks which assign
* Cardbus to IRQ 11 even though it is actually wired to IRQ 10
*/
-static int __init fix_acer_tm360_irqrouting(struct dmi_system_id *d)
+static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
{
if (!acer_tm360_irqrouting) {
acer_tm360_irqrouting = 1;
--- head-2010-05-25.orig/drivers/acpi/processor_idle.c 2010-04-15 09:43:01.000000000 +0200
+++ head-2010-05-25/drivers/acpi/processor_idle.c 2010-04-15 09:55:39.000000000 +0200
@@ -1159,6 +1159,14 @@ int acpi_processor_cst_has_changed(struc
if (!pr->flags.power_setup_done)
return -ENODEV;
+ if (processor_pm_external()) {
+ pr->flags.power = 0;
+ ret = acpi_processor_get_power_info(pr);
+ processor_notify_external(pr,
+ PROCESSOR_PM_CHANGE, PM_TYPE_IDLE);
+ return ret;
+ }
+
cpuidle_pause_and_lock();
cpuidle_disable_device(&pr->power.dev);
acpi_processor_get_power_info(pr);
--- head-2010-05-25.orig/drivers/cpuidle/Kconfig 2010-05-25 09:12:09.000000000 +0200
+++ head-2010-05-25/drivers/cpuidle/Kconfig 2010-03-24 15:10:29.000000000 +0100
@@ -1,6 +1,7 @@
config CPU_IDLE
bool "CPU idle PM support"
+ depends on !PROCESSOR_EXTERNAL_CONTROL
default ACPI
help
CPU idle is a generic framework for supporting software-controlled
--- head-2010-05-25.orig/drivers/pci/msi-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/drivers/pci/msi-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -260,6 +260,12 @@ static int msi_map_vector(struct pci_dev
map_irq.pirq : evtchn_map_pirq(-1, map_irq.pirq));
}
+static void pci_intx_for_msi(struct pci_dev *dev, int enable)
+{
+ if (!(dev->dev_flags & PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG))
+ pci_intx(dev, enable);
+}
+
#ifdef CONFIG_PM
void pci_restore_msi_state(struct pci_dev *dev)
{
@@ -269,7 +275,7 @@ void pci_restore_msi_state(struct pci_de
if (!dev->msi_enabled && !dev->msix_enabled)
return;
- pci_intx(dev, 0); /* disable intx */
+ pci_intx_for_msi(dev, 0);
if (dev->msi_enabled)
msi_set_enable(dev, 0);
if (dev->msix_enabled)
@@ -306,7 +312,7 @@ static int msi_capability_init(struct pc
return -EBUSY;
/* Set MSI enabled bits */
- pci_intx(dev, 0); /* disable intx */
+ pci_intx_for_msi(dev, 0);
msi_set_enable(dev, 1);
dev->msi_enabled = 1;
@@ -380,7 +386,7 @@ static int msix_capability_init(struct p
return avail;
}
- pci_intx(dev, 0); /* disable intx */
+ pci_intx_for_msi(dev, 0);
msix_set_enable(dev, 1);
dev->msix_enabled = 1;
@@ -516,7 +522,7 @@ void pci_disable_msi(struct pci_dev* dev
/* Disable MSI mode */
msi_set_enable(dev, 0);
- pci_intx(dev, 1); /* enable intx */
+ pci_intx_for_msi(dev, 1);
dev->msi_enabled = 0;
}
EXPORT_SYMBOL(pci_disable_msi);
@@ -653,7 +659,7 @@ void pci_disable_msix(struct pci_dev* de
/* Disable MSI mode */
msix_set_enable(dev, 0);
- pci_intx(dev, 1); /* enable intx */
+ pci_intx_for_msi(dev, 1);
dev->msix_enabled = 0;
}
EXPORT_SYMBOL(pci_disable_msix);
--- head-2010-05-25.orig/drivers/oprofile/cpu_buffer.c 2010-03-24 15:02:17.000000000 +0100
+++ head-2010-05-25/drivers/oprofile/cpu_buffer.c 2010-03-24 15:10:29.000000000 +0100
@@ -442,6 +442,39 @@ void oprofile_add_pc(unsigned long pc, i
log_sample(cpu_buf, pc, 0, is_kernel, event);
}
+#ifdef CONFIG_XEN
+/*
+ * This is basically log_sample(b, ESCAPE_CODE, cpu_mode, CPU_TRACE_BEGIN),
+ * as was previously accessible through oprofile_add_pc().
+ */
+void oprofile_add_mode(int cpu_mode)
+{
+ struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
+ struct task_struct *task;
+
+ if (nr_available_slots(cpu_buf) < 3) {
+ cpu_buf->sample_lost_overflow++;
+ return;
+ }
+
+ task = current;
+
+ /* notice a switch from user->kernel or vice versa */
+ if (cpu_buf->last_cpu_mode != cpu_mode) {
+ cpu_buf->last_cpu_mode = cpu_mode;
+ add_code(cpu_buf, cpu_mode);
+ }
+
+ /* notice a task switch */
+ if (cpu_buf->last_task != task) {
+ cpu_buf->last_task = task;
+ add_code(cpu_buf, (unsigned long)task);
+ }
+
+ add_code(cpu_buf, CPU_TRACE_BEGIN);
+}
+#endif
+
void oprofile_add_trace(unsigned long pc)
{
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
--- head-2010-05-25.orig/drivers/xen/balloon/balloon.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/balloon/balloon.c 2010-03-24 15:10:29.000000000 +0100
@@ -324,6 +324,8 @@ static int increase_reservation(unsigned
#ifndef MODULE
setup_per_zone_pages_min();
+ if (rc > 0)
+ kswapd_run(0);
if (need_zonelists_rebuild)
build_all_zonelists();
else
--- head-2010-05-25.orig/drivers/xen/blkback/blkback.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/blkback/blkback.c 2010-03-24 15:10:29.000000000 +0100
@@ -275,13 +275,10 @@ static void __end_block_io_op(pending_re
}
}
-static int end_block_io_op(struct bio *bio, unsigned int done, int error)
+static void end_block_io_op(struct bio *bio, int error)
{
- if (bio->bi_size != 0)
- return 1;
__end_block_io_op(bio->bi_private, error);
bio_put(bio);
- return error;
}
--- head-2010-05-25.orig/drivers/xen/blkfront/blkfront.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/blkfront/blkfront.c 2010-03-24 15:10:29.000000000 +0100
@@ -233,7 +233,7 @@ static int setup_blkring(struct xenbus_d
SHARED_RING_INIT(sring);
FRONT_RING_INIT(&info->ring, sring, PAGE_SIZE);
- memset(info->sg, 0, sizeof(info->sg));
+ sg_init_table(info->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST);
err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring));
if (err < 0) {
@@ -651,9 +651,8 @@ static int blkif_queue_request(struct re
ring_req->nr_segments = blk_rq_map_sg(req->q, req, info->sg);
BUG_ON(ring_req->nr_segments > BLKIF_MAX_SEGMENTS_PER_REQUEST);
- for (i = 0; i < ring_req->nr_segments; ++i) {
- sg = info->sg + i;
- buffer_mfn = page_to_phys(sg->page) >> PAGE_SHIFT;
+ for_each_sg(info->sg, sg, ring_req->nr_segments, i) {
+ buffer_mfn = page_to_phys(sg_page(sg)) >> PAGE_SHIFT;
fsect = sg->offset >> 9;
lsect = fsect + (sg->length >> 9) - 1;
/* install a grant reference. */
--- head-2010-05-25.orig/drivers/xen/blktap2/control.c 2010-05-19 17:51:54.000000000 +0200
+++ head-2010-05-25/drivers/xen/blktap2/control.c 2010-03-24 15:10:29.000000000 +0100
@@ -18,6 +18,7 @@ blktap_control_initialize_tap(struct blk
memset(tap, 0, sizeof(*tap));
set_bit(BLKTAP_CONTROL, &tap->dev_inuse);
init_rwsem(&tap->tap_sem);
+ sg_init_table(tap->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST);
init_waitqueue_head(&tap->wq);
atomic_set(&tap->refcnt, 0);
--- head-2010-05-25.orig/drivers/xen/blktap2/device.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/blktap2/device.c 2010-03-24 15:10:29.000000000 +0100
@@ -665,8 +665,7 @@ blktap_device_process_request(struct blk
request->nr_pages = 0;
blkif_req.nr_segments = blk_rq_map_sg(req->q, req, tap->sg);
BUG_ON(blkif_req.nr_segments > BLKIF_MAX_SEGMENTS_PER_REQUEST);
- for (i = 0; i < blkif_req.nr_segments; ++i) {
- sg = tap->sg + i;
+ for_each_sg(tap->sg, sg, blkif_req.nr_segments, i) {
fsect = sg->offset >> 9;
lsect = fsect + (sg->length >> 9) - 1;
nr_sects += sg->length >> 9;
@@ -677,13 +676,13 @@ blktap_device_process_request(struct blk
.first_sect = fsect,
.last_sect = lsect };
- if (PageBlkback(sg->page)) {
+ if (PageBlkback(sg_page(sg))) {
/* foreign page -- use xen */
if (blktap_prep_foreign(tap,
request,
&blkif_req,
i,
- sg->page,
+ sg_page(sg),
&table))
goto out;
} else {
@@ -691,7 +690,7 @@ blktap_device_process_request(struct blk
if (blktap_map(tap,
request,
i,
- sg->page))
+ sg_page(sg)))
goto out;
}
--- head-2010-05-25.orig/drivers/xen/core/firmware.c 2007-06-22 09:08:06.000000000 +0200
+++ head-2010-05-25/drivers/xen/core/firmware.c 2010-03-24 15:10:29.000000000 +0100
@@ -1,4 +1,5 @@
#include <linux/kernel.h>
+#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/edd.h>
--- head-2010-05-25.orig/drivers/xen/core/machine_kexec.c 2009-07-13 14:25:35.000000000 +0200
+++ head-2010-05-25/drivers/xen/core/machine_kexec.c 2010-03-24 15:10:29.000000000 +0100
@@ -29,6 +29,10 @@ void __init xen_machine_kexec_setup_reso
int k = 0;
int rc;
+ if (strstr(boot_command_line, "crashkernel="))
+ printk(KERN_WARNING "Ignoring crashkernel command line, "
+ "parameter will be supplied by xen\n");
+
if (!is_initial_xendomain())
return;
@@ -130,6 +134,13 @@ void __init xen_machine_kexec_setup_reso
xen_max_nr_phys_cpus))
goto err;
+#ifdef CONFIG_X86
+ if (xen_create_contiguous_region((unsigned long)&vmcoreinfo_note,
+ get_order(sizeof(vmcoreinfo_note)),
+ BITS_PER_LONG))
+ goto err;
+#endif
+
return;
err:
@@ -213,6 +224,13 @@ NORET_TYPE void machine_kexec(struct kim
panic("KEXEC_CMD_kexec hypercall should not return\n");
}
+#ifdef CONFIG_X86
+unsigned long paddr_vmcoreinfo_note(void)
+{
+ return virt_to_machine(&vmcoreinfo_note);
+}
+#endif
+
void machine_shutdown(void)
{
/* do nothing */
--- head-2010-05-25.orig/drivers/xen/core/smpboot.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/drivers/xen/core/smpboot.c 2010-03-24 15:10:29.000000000 +0100
@@ -45,8 +45,8 @@ cpumask_t cpu_possible_map;
EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_initialized_map;
-struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
-EXPORT_SYMBOL(cpu_data);
+DEFINE_PER_CPU(struct cpuinfo_x86, cpu_info);
+EXPORT_PER_CPU_SYMBOL(cpu_info);
static DEFINE_PER_CPU(int, resched_irq);
static DEFINE_PER_CPU(int, callfunc_irq);
@@ -55,12 +55,12 @@ static char callfunc_name[NR_CPUS][15];
u8 cpu_2_logical_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
-cpumask_t cpu_sibling_map[NR_CPUS] __cacheline_aligned;
-cpumask_t cpu_core_map[NR_CPUS] __cacheline_aligned;
+DEFINE_PER_CPU(cpumask_t, cpu_sibling_map);
+DEFINE_PER_CPU(cpumask_t, cpu_core_map);
#if defined(__i386__)
-u8 x86_cpu_to_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = 0xff };
-EXPORT_SYMBOL(x86_cpu_to_apicid);
+DEFINE_PER_CPU(u8, x86_cpu_to_apicid) = BAD_APICID;
+EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
#endif
void __init prefill_possible_map(void)
@@ -85,25 +85,25 @@ void __init smp_alloc_memory(void)
static inline void
set_cpu_sibling_map(unsigned int cpu)
{
- cpu_data[cpu].phys_proc_id = cpu;
- cpu_data[cpu].cpu_core_id = 0;
+ cpu_data(cpu).phys_proc_id = cpu;
+ cpu_data(cpu).cpu_core_id = 0;
- cpu_sibling_map[cpu] = cpumask_of_cpu(cpu);
- cpu_core_map[cpu] = cpumask_of_cpu(cpu);
+ per_cpu(cpu_sibling_map, cpu) = cpumask_of_cpu(cpu);
+ per_cpu(cpu_core_map, cpu) = cpumask_of_cpu(cpu);
- cpu_data[cpu].booted_cores = 1;
+ cpu_data(cpu).booted_cores = 1;
}
static void
remove_siblinginfo(unsigned int cpu)
{
- cpu_data[cpu].phys_proc_id = BAD_APICID;
- cpu_data[cpu].cpu_core_id = BAD_APICID;
+ cpu_data(cpu).phys_proc_id = BAD_APICID;
+ cpu_data(cpu).cpu_core_id = BAD_APICID;
- cpus_clear(cpu_sibling_map[cpu]);
- cpus_clear(cpu_core_map[cpu]);
+ cpus_clear(per_cpu(cpu_sibling_map, cpu));
+ cpus_clear(per_cpu(cpu_core_map, cpu));
- cpu_data[cpu].booted_cores = 0;
+ cpu_data(cpu).booted_cores = 0;
}
static int __cpuinit xen_smp_intr_init(unsigned int cpu)
@@ -162,9 +162,9 @@ void __cpuinit cpu_bringup(void)
{
cpu_init();
#ifdef __i386__
- identify_secondary_cpu(cpu_data + smp_processor_id());
+ identify_secondary_cpu(&current_cpu_data);
#else
- identify_cpu(cpu_data + smp_processor_id());
+ identify_cpu(&current_cpu_data);
#endif
touch_softlockup_watchdog();
preempt_disable();
@@ -265,16 +265,16 @@ void __init smp_prepare_cpus(unsigned in
if (HYPERVISOR_vcpu_op(VCPUOP_get_physid, 0, &cpu_id) == 0)
apicid = xen_vcpu_physid_to_x86_apicid(cpu_id.phys_id);
boot_cpu_data.apicid = apicid;
- cpu_data[0] = boot_cpu_data;
+ cpu_data(0) = boot_cpu_data;
cpu_2_logical_apicid[0] = apicid;
- x86_cpu_to_apicid[0] = apicid;
+ per_cpu(x86_cpu_to_apicid, 0) = apicid;
current_thread_info()->cpu = 0;
for (cpu = 0; cpu < NR_CPUS; cpu++) {
- cpus_clear(cpu_sibling_map[cpu]);
- cpus_clear(cpu_core_map[cpu]);
+ cpus_clear(per_cpu(cpu_sibling_map, cpu));
+ cpus_clear(per_cpu(cpu_core_map, cpu));
}
set_cpu_sibling_map(0);
@@ -319,11 +319,12 @@ void __init smp_prepare_cpus(unsigned in
apicid = cpu;
if (HYPERVISOR_vcpu_op(VCPUOP_get_physid, cpu, &cpu_id) == 0)
apicid = xen_vcpu_physid_to_x86_apicid(cpu_id.phys_id);
- cpu_data[cpu] = boot_cpu_data;
- cpu_data[cpu].apicid = apicid;
+ cpu_data(cpu) = boot_cpu_data;
+ cpu_data(cpu).cpu_index = cpu;
+ cpu_data(cpu).apicid = apicid;
cpu_2_logical_apicid[cpu] = apicid;
- x86_cpu_to_apicid[cpu] = apicid;
+ per_cpu(x86_cpu_to_apicid, cpu) = apicid;
#ifdef __x86_64__
cpu_pda(cpu)->pcurrent = idle;
--- head-2010-05-25.orig/drivers/xen/netback/loopback.c 2010-03-24 15:08:58.000000000 +0100
+++ head-2010-05-25/drivers/xen/netback/loopback.c 2010-03-24 15:10:29.000000000 +0100
@@ -285,9 +285,9 @@ static void __exit clean_loopback(int i)
char dev_name[IFNAMSIZ];
sprintf(dev_name, "vif0.%d", i);
- dev1 = dev_get_by_name(dev_name);
+ dev1 = dev_get_by_name(&init_net, dev_name);
sprintf(dev_name, "veth%d", i);
- dev2 = dev_get_by_name(dev_name);
+ dev2 = dev_get_by_name(&init_net, dev_name);
if (dev1 && dev2) {
unregister_netdev(dev2);
unregister_netdev(dev1);
--- head-2010-05-25.orig/drivers/xen/netback/netback.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/drivers/xen/netback/netback.c 2010-03-24 15:10:29.000000000 +0100
@@ -353,8 +353,8 @@ static void xen_network_done_notify(void
{
static struct net_device *eth0_dev = NULL;
if (unlikely(eth0_dev == NULL))
- eth0_dev = __dev_get_by_name("eth0");
- netif_rx_schedule(eth0_dev);
+ eth0_dev = __dev_get_by_name(&init_net, "eth0");
+ netif_rx_schedule(eth0_dev, ???);
}
/*
* Add following to poll() function in NAPI driver (Tigon3 is example):
--- head-2010-05-25.orig/drivers/xen/netback/xenbus.c 2010-03-24 15:09:08.000000000 +0100
+++ head-2010-05-25/drivers/xen/netback/xenbus.c 2010-03-24 15:10:29.000000000 +0100
@@ -149,12 +149,10 @@ fail:
* and vif variables to the environment, for the benefit of the vif-* hotplug
* scripts.
*/
-static int netback_uevent(struct xenbus_device *xdev, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int netback_uevent(struct xenbus_device *xdev, struct kobj_uevent_env *env)
{
struct backend_info *be = xdev->dev.driver_data;
netif_t *netif = be->netif;
- int i = 0, length = 0;
char *val;
DPRINTK("netback_uevent");
@@ -166,15 +164,11 @@ static int netback_uevent(struct xenbus_
return err;
}
else {
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
- &length, "script=%s", val);
+ add_uevent_var(env, "script=%s", val);
kfree(val);
}
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "vif=%s", netif->dev->name);
-
- envp[i] = NULL;
+ add_uevent_var(env, "vif=%s", netif->dev->name);
return 0;
}
--- head-2010-05-25.orig/drivers/xen/netfront/accel.c 2009-05-04 10:01:03.000000000 +0200
+++ head-2010-05-25/drivers/xen/netfront/accel.c 2010-03-24 15:10:29.000000000 +0100
@@ -325,7 +325,7 @@ accelerator_set_vif_state_hooks(struct n
DPRINTK("%p\n",vif_state);
/* Make sure there are no data path operations going on */
- netif_poll_disable(vif_state->np->netdev);
+ napi_disable(&vif_state->np->napi);
netif_tx_lock_bh(vif_state->np->netdev);
accelerator = vif_state->np->accelerator;
@@ -334,7 +334,7 @@ accelerator_set_vif_state_hooks(struct n
spin_unlock_irqrestore(&accelerator->vif_states_lock, flags);
netif_tx_unlock_bh(vif_state->np->netdev);
- netif_poll_enable(vif_state->np->netdev);
+ napi_enable(&vif_state->np->napi);
}
@@ -508,7 +508,7 @@ accelerator_remove_single_hook(struct ne
unsigned long flags;
/* Make sure there are no data path operations going on */
- netif_poll_disable(vif_state->np->netdev);
+ napi_disable(&vif_state->np->napi);
netif_tx_lock_bh(vif_state->np->netdev);
spin_lock_irqsave(&accelerator->vif_states_lock, flags);
@@ -524,7 +524,7 @@ accelerator_remove_single_hook(struct ne
spin_unlock_irqrestore(&accelerator->vif_states_lock, flags);
netif_tx_unlock_bh(vif_state->np->netdev);
- netif_poll_enable(vif_state->np->netdev);
+ napi_enable(&vif_state->np->napi);
}
--- head-2010-05-25.orig/drivers/xen/netfront/netfront.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/drivers/xen/netfront/netfront.c 2010-03-24 15:10:29.000000000 +0100
@@ -626,6 +626,7 @@ static int network_open(struct net_devic
struct netfront_info *np = netdev_priv(dev);
memset(&np->stats, 0, sizeof(np->stats));
+ napi_enable(&np->napi);
spin_lock_bh(&np->rx_lock);
if (netfront_carrier_ok(np)) {
@@ -634,7 +635,7 @@ static int network_open(struct net_devic
if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx)){
netfront_accelerator_call_stop_napi_irq(np, dev);
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
}
}
spin_unlock_bh(&np->rx_lock);
@@ -706,7 +707,7 @@ static void rx_refill_timeout(unsigned l
netfront_accelerator_call_stop_napi_irq(np, dev);
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
}
static void network_alloc_rx_buffers(struct net_device *dev)
@@ -1063,7 +1064,7 @@ static irqreturn_t netif_int(int irq, vo
if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx)) {
netfront_accelerator_call_stop_napi_irq(np, dev);
- netif_rx_schedule(dev);
+ netif_rx_schedule(dev, &np->napi);
dev->last_rx = jiffies;
}
}
@@ -1316,16 +1317,17 @@ static int xennet_set_skb_gso(struct sk_
#endif
}
-static int netif_poll(struct net_device *dev, int *pbudget)
+static int netif_poll(struct napi_struct *napi, int budget)
{
- struct netfront_info *np = netdev_priv(dev);
+ struct netfront_info *np = container_of(napi, struct netfront_info, napi);
+ struct net_device *dev = np->netdev;
struct sk_buff *skb;
struct netfront_rx_info rinfo;
struct netif_rx_response *rx = &rinfo.rx;
struct netif_extra_info *extras = rinfo.extras;
RING_IDX i, rp;
struct multicall_entry *mcl;
- int work_done, budget, more_to_do = 1, accel_more_to_do = 1;
+ int work_done, more_to_do = 1, accel_more_to_do = 1;
struct sk_buff_head rxq;
struct sk_buff_head errq;
struct sk_buff_head tmpq;
@@ -1345,8 +1347,6 @@ static int netif_poll(struct net_device
skb_queue_head_init(&errq);
skb_queue_head_init(&tmpq);
- if ((budget = *pbudget) > dev->quota)
- budget = dev->quota;
rp = np->rx.sring->rsp_prod;
rmb(); /* Ensure we see queued responses up to 'rp'. */
@@ -1508,9 +1508,6 @@ err:
accel_more_to_do = 0;
}
- *pbudget -= work_done;
- dev->quota -= work_done;
-
if (work_done < budget) {
local_irq_save(flags);
@@ -1527,14 +1524,14 @@ err:
}
if (!more_to_do && !accel_more_to_do)
- __netif_rx_complete(dev);
+ __netif_rx_complete(dev, napi);
local_irq_restore(flags);
}
spin_unlock(&np->rx_lock);
- return more_to_do | accel_more_to_do;
+ return work_done;
}
static void netif_release_tx_bufs(struct netfront_info *np)
@@ -1681,6 +1678,7 @@ static int network_close(struct net_devi
{
struct netfront_info *np = netdev_priv(dev);
netif_stop_queue(np->netdev);
+ napi_disable(&np->napi);
return 0;
}
@@ -2088,16 +2086,14 @@ static struct net_device * __devinit cre
netdev->hard_start_xmit = network_start_xmit;
netdev->stop = network_close;
netdev->get_stats = network_get_stats;
- netdev->poll = netif_poll;
+ netif_napi_add(netdev, &np->napi, netif_poll, 64);
netdev->set_multicast_list = network_set_multicast_list;
netdev->uninit = netif_uninit;
netdev->set_mac_address = xennet_set_mac_address;
netdev->change_mtu = xennet_change_mtu;
- netdev->weight = 64;
netdev->features = NETIF_F_IP_CSUM;
SET_ETHTOOL_OPS(netdev, &network_ethtool_ops);
- SET_MODULE_OWNER(netdev);
SET_NETDEV_DEV(netdev, &dev->dev);
np->netdev = netdev;
--- head-2010-05-25.orig/drivers/xen/netfront/netfront.h 2010-02-24 13:13:46.000000000 +0100
+++ head-2010-05-25/drivers/xen/netfront/netfront.h 2010-03-24 15:10:29.000000000 +0100
@@ -157,6 +157,8 @@ struct netfront_info {
spinlock_t tx_lock;
spinlock_t rx_lock;
+ struct napi_struct napi;
+
unsigned int irq;
unsigned int copying_receiver;
unsigned int carrier;
--- head-2010-05-25.orig/drivers/xen/pciback/Makefile 2008-07-21 11:00:33.000000000 +0200
+++ head-2010-05-25/drivers/xen/pciback/Makefile 2010-03-24 15:10:29.000000000 +0100
@@ -12,6 +12,4 @@ pciback-$(CONFIG_XEN_PCIDEV_BACKEND_SLOT
pciback-$(CONFIG_XEN_PCIDEV_BACKEND_PASS) += passthrough.o
pciback-$(CONFIG_XEN_PCIDEV_BACKEND_CONTROLLER) += controller.o
-ifeq ($(CONFIG_XEN_PCIDEV_BE_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+ccflags-$(CONFIG_XEN_PCIDEV_BE_DEBUG) += -DDEBUG
--- head-2010-05-25.orig/drivers/xen/pcifront/Makefile 2007-06-12 13:13:45.000000000 +0200
+++ head-2010-05-25/drivers/xen/pcifront/Makefile 2010-03-24 15:10:29.000000000 +0100
@@ -2,6 +2,4 @@ obj-y += pcifront.o
pcifront-y := pci_op.o xenbus.o pci.o
-ifeq ($(CONFIG_XEN_PCIDEV_FE_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+ccflags-$(CONFIG_XEN_PCIDEV_FE_DEBUG) += -DDEBUG
--- head-2010-05-25.orig/drivers/xen/scsiback/emulate.c 2009-03-18 10:39:32.000000000 +0100
+++ head-2010-05-25/drivers/xen/scsiback/emulate.c 2010-03-24 15:10:29.000000000 +0100
@@ -109,9 +109,10 @@ static void resp_not_supported_cmd(pendi
}
-static int __copy_to_sg(struct scatterlist *sg, unsigned int nr_sg,
+static int __copy_to_sg(struct scatterlist *sgl, unsigned int nr_sg,
void *buf, unsigned int buflen)
{
+ struct scatterlist *sg;
void *from = buf;
void *to;
unsigned int from_rest = buflen;
@@ -120,8 +121,8 @@ static int __copy_to_sg(struct scatterli
unsigned int i;
unsigned long pfn;
- for (i = 0; i < nr_sg; i++) {
- if (sg->page == NULL) {
+ for_each_sg (sgl, sg, nr_sg, i) {
+ if (sg_page(sg) == NULL) {
printk(KERN_WARNING "%s: inconsistent length field in "
"scatterlist\n", __FUNCTION__);
return -ENOMEM;
@@ -130,7 +131,7 @@ static int __copy_to_sg(struct scatterli
to_capa = sg->length;
copy_size = min_t(unsigned int, to_capa, from_rest);
- pfn = page_to_pfn(sg->page);
+ pfn = page_to_pfn(sg_page(sg));
to = pfn_to_kaddr(pfn) + (sg->offset);
memcpy(to, from, copy_size);
@@ -139,7 +140,6 @@ static int __copy_to_sg(struct scatterli
return 0;
}
- sg++;
from += copy_size;
}
@@ -148,9 +148,10 @@ static int __copy_to_sg(struct scatterli
return -ENOMEM;
}
-static int __copy_from_sg(struct scatterlist *sg, unsigned int nr_sg,
+static int __copy_from_sg(struct scatterlist *sgl, unsigned int nr_sg,
void *buf, unsigned int buflen)
{
+ struct scatterlist *sg;
void *from;
void *to = buf;
unsigned int from_rest;
@@ -159,8 +160,8 @@ static int __copy_from_sg(struct scatter
unsigned int i;
unsigned long pfn;
- for (i = 0; i < nr_sg; i++) {
- if (sg->page == NULL) {
+ for_each_sg (sgl, sg, nr_sg, i) {
+ if (sg_page(sg) == NULL) {
printk(KERN_WARNING "%s: inconsistent length field in "
"scatterlist\n", __FUNCTION__);
return -ENOMEM;
@@ -175,13 +176,11 @@ static int __copy_from_sg(struct scatter
}
copy_size = from_rest;
- pfn = page_to_pfn(sg->page);
+ pfn = page_to_pfn(sg_page(sg));
from = pfn_to_kaddr(pfn) + (sg->offset);
memcpy(to, from, copy_size);
to_capa -= copy_size;
-
- sg++;
to += copy_size;
}
--- head-2010-05-25.orig/drivers/xen/scsiback/scsiback.c 2010-03-24 15:08:58.000000000 +0100
+++ head-2010-05-25/drivers/xen/scsiback/scsiback.c 2010-03-24 15:10:29.000000000 +0100
@@ -260,6 +260,8 @@ static int scsiback_gnttab_data_map(vscs
write = (data_dir == DMA_TO_DEVICE);
if (nr_segments) {
+ struct scatterlist *sg;
+
/* free of (sgl) in fast_flush_area()*/
pending_req->sgl = kmalloc(sizeof(struct scatterlist) * nr_segments,
GFP_KERNEL);
@@ -268,6 +270,8 @@ static int scsiback_gnttab_data_map(vscs
return -ENOMEM;
}
+ sg_init_table(pending_req->sgl, nr_segments);
+
for (i = 0; i < nr_segments; i++) {
flags = GNTMAP_host_map;
if (write)
@@ -291,7 +295,7 @@ static int scsiback_gnttab_data_map(vscs
}
}
- for (i = 0; i < nr_segments; i++) {
+ for_each_sg (pending_req->sgl, sg, nr_segments, i) {
struct page *pg;
if (unlikely(map[i].status != 0)) {
@@ -310,15 +314,14 @@ static int scsiback_gnttab_data_map(vscs
set_phys_to_machine(page_to_pfn(pg),
FOREIGN_FRAME(map[i].dev_bus_addr >> PAGE_SHIFT));
- pending_req->sgl[i].page = pg;
- pending_req->sgl[i].offset = ring_req->seg[i].offset;
- pending_req->sgl[i].length = ring_req->seg[i].length;
- data_len += pending_req->sgl[i].length;
+ sg_set_page(sg, pg, ring_req->seg[i].length,
+ ring_req->seg[i].offset);
+ data_len += sg->length;
barrier();
- if (pending_req->sgl[i].offset >= PAGE_SIZE ||
- pending_req->sgl[i].length > PAGE_SIZE ||
- pending_req->sgl[i].offset + pending_req->sgl[i].length > PAGE_SIZE)
+ if (sg->offset >= PAGE_SIZE ||
+ sg->length > PAGE_SIZE ||
+ sg->offset + sg->length > PAGE_SIZE)
err |= 1;
}
@@ -347,27 +350,14 @@ static int scsiback_merge_bio(struct req
blk_queue_bounce(q, &bio);
- if (!rq->bio)
- blk_rq_bio_prep(q, rq, bio);
- else if (!ll_back_merge_fn(q, rq, bio))
- return -EINVAL;
- else {
- rq->biotail->bi_next = bio;
- rq->biotail = bio;
- }
-
- return 0;
+ return blk_rq_append_bio(q, rq, bio);
}
/* quoted scsi_lib.c/scsi_bi_endio */
-static int scsiback_bi_endio(struct bio *bio, unsigned int bytes_done, int error)
+static void scsiback_bi_endio(struct bio *bio, int error)
{
- if (bio->bi_size)
- return 1;
-
bio_put(bio);
- return 0;
}
@@ -378,16 +368,16 @@ static int request_map_sg(struct request
struct request_queue *q = rq->q;
int nr_pages;
unsigned int nsegs = count;
-
unsigned int data_len = 0, len, bytes, off;
+ struct scatterlist *sg;
struct page *page;
struct bio *bio = NULL;
int i, err, nr_vecs = 0;
- for (i = 0; i < nsegs; i++) {
- page = pending_req->sgl[i].page;
- off = (unsigned int)pending_req->sgl[i].offset;
- len = (unsigned int)pending_req->sgl[i].length;
+ for_each_sg (pending_req->sgl, sg, nsegs, i) {
+ page = sg_page(sg);
+ off = sg->offset;
+ len = sg->length;
data_len += len;
nr_pages = (len + off + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -415,7 +405,7 @@ static int request_map_sg(struct request
if (bio->bi_vcnt >= nr_vecs) {
err = scsiback_merge_bio(rq, bio);
if (err) {
- bio_endio(bio, bio->bi_size, 0);
+ bio_endio(bio, 0);
goto free_bios;
}
bio = NULL;
@@ -438,7 +428,7 @@ free_bios:
/*
* call endio instead of bio_put incase it was bounced
*/
- bio_endio(bio, bio->bi_size, 0);
+ bio_endio(bio, 0);
}
return err;
--- head-2010-05-25.orig/drivers/xen/scsifront/scsifront.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/scsifront/scsifront.c 2010-03-24 15:10:29.000000000 +0100
@@ -246,11 +246,10 @@ static int map_data_for_request(struct v
{
grant_ref_t gref_head;
struct page *page;
- int err, i, ref, ref_cnt = 0;
+ int err, ref, ref_cnt = 0;
int write = (sc->sc_data_direction == DMA_TO_DEVICE);
- int nr_pages, off, len, bytes;
+ unsigned int i, nr_pages, off, len, bytes;
unsigned long buffer_pfn;
- unsigned int data_len = 0;
if (sc->sc_data_direction == DMA_NONE)
return 0;
@@ -263,25 +262,31 @@ static int map_data_for_request(struct v
if (sc->use_sg) {
/* quoted scsi_lib.c/scsi_req_map_sg . */
- struct scatterlist *sg = (struct scatterlist *)sc->request_buffer;
- nr_pages = (sc->request_bufflen + sg[0].offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ struct scatterlist *sg, *sgl = (struct scatterlist *)sc->request_buffer;
+ unsigned int data_len = sc->request_bufflen;
+ nr_pages = (sc->request_bufflen + sgl->offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
if (nr_pages > VSCSIIF_SG_TABLESIZE) {
printk(KERN_ERR "scsifront: Unable to map request_buffer for command!\n");
ref_cnt = (-E2BIG);
goto big_to_sg;
}
- for (i = 0; i < sc->use_sg; i++) {
- page = sg[i].page;
- off = sg[i].offset;
- len = sg[i].length;
- data_len += len;
+ for_each_sg (sgl, sg, sc->use_sg, i) {
+ page = sg_page(sg);
+ off = sg->offset;
+ len = sg->length;
buffer_pfn = page_to_phys(page) >> PAGE_SHIFT;
- while (len > 0) {
+ while (len > 0 && data_len > 0) {
+ /*
+ * sg sends a scatterlist that is larger than
+ * the data_len it wants transferred for certain
+ * IO sizes
+ */
bytes = min_t(unsigned int, len, PAGE_SIZE - off);
+ bytes = min(bytes, data_len);
ref = gnttab_claim_grant_reference(&gref_head);
BUG_ON(ref == -ENOSPC);
@@ -296,6 +301,7 @@ static int map_data_for_request(struct v
buffer_pfn++;
len -= bytes;
+ data_len -= bytes;
off = 0;
ref_cnt++;
}
--- head-2010-05-25.orig/drivers/xen/sfc_netback/accel_fwd.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/drivers/xen/sfc_netback/accel_fwd.c 2010-03-24 15:10:29.000000000 +0100
@@ -181,10 +181,11 @@ int netback_accel_fwd_add(const __u8 *ma
unsigned long flags;
cuckoo_hash_mac_key key = cuckoo_mac_to_key(mac);
struct port_fwd *fwd_set = (struct port_fwd *)fwd_priv;
+ DECLARE_MAC_BUF(buf);
BUG_ON(fwd_priv == NULL);
- DPRINTK("Adding mac " MAC_FMT "\n", MAC_ARG(mac));
+ DPRINTK("Adding mac %s\n", print_mac(buf, mac));
spin_lock_irqsave(&fwd_set->fwd_lock, flags);
@@ -199,8 +200,8 @@ int netback_accel_fwd_add(const __u8 *ma
if (cuckoo_hash_lookup(&fwd_set->fwd_hash_table,
(cuckoo_hash_key *)(&key), &rc) != 0) {
spin_unlock_irqrestore(&fwd_set->fwd_lock, flags);
- EPRINTK("MAC address " MAC_FMT " already accelerated.\n",
- MAC_ARG(mac));
+ EPRINTK("MAC address %s already accelerated.\n",
+ print_mac(buf, mac));
return -EEXIST;
}
@@ -235,8 +236,9 @@ void netback_accel_fwd_remove(const __u8
unsigned long flags;
cuckoo_hash_mac_key key = cuckoo_mac_to_key(mac);
struct port_fwd *fwd_set = (struct port_fwd *)fwd_priv;
+ DECLARE_MAC_BUF(buf);
- DPRINTK("Removing mac " MAC_FMT "\n", MAC_ARG(mac));
+ DPRINTK("Removing mac %s\n", print_mac(buf, mac));
BUG_ON(fwd_priv == NULL);
@@ -394,14 +396,16 @@ void netback_accel_tx_packet(struct sk_b
if (is_broadcast_ether_addr(skb_mac_header(skb))
&& packet_is_arp_reply(skb)) {
+ DECLARE_MAC_BUF(buf);
+
/*
* update our fast path forwarding to reflect this
* gratuitous ARP
*/
mac = skb_mac_header(skb)+ETH_ALEN;
- DPRINTK("%s: found gratuitous ARP for " MAC_FMT "\n",
- __FUNCTION__, MAC_ARG(mac));
+ DPRINTK("%s: found gratuitous ARP for %s\n",
+ __FUNCTION__, print_mac(buf, mac));
spin_lock_irqsave(&fwd_set->fwd_lock, flags);
/*
--- head-2010-05-25.orig/drivers/xen/sfc_netback/accel_msg.c 2008-02-20 09:32:49.000000000 +0100
+++ head-2010-05-25/drivers/xen/sfc_netback/accel_msg.c 2010-03-24 15:10:29.000000000 +0100
@@ -57,11 +57,11 @@ static void netback_accel_msg_tx_localma
{
unsigned long lock_state;
struct net_accel_msg *msg;
+ DECLARE_MAC_BUF(buf);
BUG_ON(bend == NULL || mac == NULL);
- VPRINTK("Sending local mac message: " MAC_FMT "\n",
- MAC_ARG((const char *)mac));
+ VPRINTK("Sending local mac message: %s\n", print_mac(buf, mac));
msg = net_accel_msg_start_send(bend->shared_page, &bend->to_domU,
&lock_state);
--- head-2010-05-25.orig/drivers/xen/sfc_netfront/accel_msg.c 2010-03-24 15:06:12.000000000 +0100
+++ head-2010-05-25/drivers/xen/sfc_netfront/accel_msg.c 2010-03-24 15:10:29.000000000 +0100
@@ -41,11 +41,13 @@ static void vnic_start_interrupts(netfro
/* Prime our interrupt */
spin_lock_irqsave(&vnic->irq_enabled_lock, flags);
if (!netfront_accel_vi_enable_interrupts(vnic)) {
+ struct netfront_info *np = netdev_priv(vnic->net_dev);
+
/* Cripes, that was quick, better pass it up */
netfront_accel_disable_net_interrupts(vnic);
vnic->irq_enabled = 0;
NETFRONT_ACCEL_STATS_OP(vnic->stats.poll_schedule_count++);
- netif_rx_schedule(vnic->net_dev);
+ netif_rx_schedule(vnic->net_dev, &np->napi);
} else {
/*
* Nothing yet, make sure we get interrupts through
@@ -72,6 +74,7 @@ static void vnic_stop_interrupts(netfron
static void vnic_start_fastpath(netfront_accel_vnic *vnic)
{
struct net_device *net_dev = vnic->net_dev;
+ struct netfront_info *np = netdev_priv(net_dev);
unsigned long flags;
DPRINTK("%s\n", __FUNCTION__);
@@ -80,9 +83,9 @@ static void vnic_start_fastpath(netfront
vnic->tx_enabled = 1;
spin_unlock_irqrestore(&vnic->tx_lock, flags);
- netif_poll_disable(net_dev);
+ napi_disable(&np->napi);
vnic->poll_enabled = 1;
- netif_poll_enable(net_dev);
+ napi_enable(&np->napi);
vnic_start_interrupts(vnic);
}
@@ -114,11 +117,11 @@ void vnic_stop_fastpath(netfront_accel_v
spin_unlock_irqrestore(&vnic->tx_lock, flags1);
/* Must prevent polls and hold lock to modify poll_enabled */
- netif_poll_disable(net_dev);
+ napi_disable(&np->napi);
spin_lock_irqsave(&vnic->irq_enabled_lock, flags1);
vnic->poll_enabled = 0;
spin_unlock_irqrestore(&vnic->irq_enabled_lock, flags1);
- netif_poll_enable(net_dev);
+ napi_enable(&np->napi);
}
@@ -324,8 +327,10 @@ static int vnic_process_localmac_msg(net
cuckoo_hash_mac_key key;
if (msg->u.localmac.flags & NET_ACCEL_MSG_ADD) {
- DPRINTK("MAC has moved, could be local: " MAC_FMT "\n",
- MAC_ARG(msg->u.localmac.mac));
+ DECLARE_MAC_BUF(buf);
+
+ DPRINTK("MAC has moved, could be local: %s\n",
+ print_mac(buf, msg->u.localmac.mac));
key = cuckoo_mac_to_key(msg->u.localmac.mac);
spin_lock_irqsave(&vnic->table_lock, flags);
/* Try to remove it, not a big deal if not there */
@@ -513,6 +518,8 @@ irqreturn_t netfront_accel_net_channel_i
spin_lock_irqsave(&vnic->irq_enabled_lock, flags);
if (vnic->irq_enabled) {
+ struct netfront_info *np = netdev_priv(net_dev);
+
netfront_accel_disable_net_interrupts(vnic);
vnic->irq_enabled = 0;
spin_unlock_irqrestore(&vnic->irq_enabled_lock, flags);
@@ -525,7 +532,7 @@ irqreturn_t netfront_accel_net_channel_i
vnic->stats.event_count_since_irq;
vnic->stats.event_count_since_irq = 0;
#endif
- netif_rx_schedule(net_dev);
+ netif_rx_schedule(net_dev, &np->napi);
}
else {
spin_unlock_irqrestore(&vnic->irq_enabled_lock, flags);
--- head-2010-05-25.orig/drivers/xen/sfc_netfront/accel_vi.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/drivers/xen/sfc_netfront/accel_vi.c 2010-03-24 15:10:29.000000000 +0100
@@ -643,8 +643,10 @@ netfront_accel_vi_tx_post(netfront_accel
(cuckoo_hash_key *)(&key), &value);
if (!try_fastpath) {
- VPRINTK("try fast path false for mac: " MAC_FMT "\n",
- MAC_ARG(skb->data));
+ DECLARE_MAC_BUF(buf);
+
+ VPRINTK("try fast path false for mac: %s\n",
+ print_mac(buf, skb->data));
return NETFRONT_ACCEL_STATUS_CANT;
}
@@ -770,9 +772,10 @@ static void netfront_accel_vi_rx_comple
if (compare_ether_addr(skb->data, vnic->mac)) {
struct iphdr *ip = (struct iphdr *)(skb->data + ETH_HLEN);
u16 port;
+ DECLARE_MAC_BUF(buf);
- DPRINTK("%s: saw wrong MAC address " MAC_FMT "\n",
- __FUNCTION__, MAC_ARG(skb->data));
+ DPRINTK("%s: saw wrong MAC address %s\n",
+ __FUNCTION__, print_mac(buf, skb->data));
if (ip->protocol == IPPROTO_TCP) {
struct tcphdr *tcp = (struct tcphdr *)
--- head-2010-05-25.orig/drivers/xen/sfc_netutil/accel_util.h 2008-02-20 09:32:49.000000000 +0100
+++ head-2010-05-25/drivers/xen/sfc_netutil/accel_util.h 2010-03-24 15:10:29.000000000 +0100
@@ -63,9 +63,6 @@
DPRINTK("%s at %s:%d\n", #exp, __FILE__, __LINE__); \
} while(0)
-#define MAC_FMT "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x"
-#define MAC_ARG(_mac) (_mac)[0], (_mac)[1], (_mac)[2], (_mac)[3], (_mac)[4], (_mac)[5]
-
#include <xen/xenbus.h>
/*! Map a set of pages from another domain
--- head-2010-05-25.orig/drivers/xen/usbback/usbback.c 2010-03-24 15:08:58.000000000 +0100
+++ head-2010-05-25/drivers/xen/usbback/usbback.c 2010-04-15 17:36:18.000000000 +0200
@@ -86,6 +86,8 @@ typedef struct {
static pending_req_t *pending_reqs;
static struct list_head pending_free;
static DEFINE_SPINLOCK(pending_free_lock);
+static LIST_HEAD(pending_urb_free);
+static DEFINE_SPINLOCK(urb_free_lock);
static DECLARE_WAIT_QUEUE_HEAD(pending_free_wq);
#define USBBACK_INVALID_HANDLE (~0)
@@ -272,6 +274,15 @@ fail:
static void usbbk_free_urb(struct urb *urb)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&urb_free_lock, flags);
+ list_add(&urb->urb_list, &pending_urb_free);
+ spin_unlock_irqrestore(&urb_free_lock, flags);
+}
+
+static void _usbbk_free_urb(struct urb *urb)
+{
if (usb_pipecontrol(urb->pipe))
usb_buffer_free(urb->dev, sizeof(struct usb_ctrlrequest),
urb->setup_packet, urb->setup_dma);
@@ -282,6 +293,29 @@ static void usbbk_free_urb(struct urb *u
usb_free_urb(urb);
}
+static void usbbk_free_urbs(void)
+{
+ unsigned long flags;
+ struct list_head tmp_list;
+
+ if (list_empty(&pending_urb_free))
+ return;
+
+ INIT_LIST_HEAD(&tmp_list);
+
+ spin_lock_irqsave(&urb_free_lock, flags);
+ list_splice_init(&pending_urb_free, &tmp_list);
+ spin_unlock_irqrestore(&urb_free_lock, flags);
+
+ while (!list_empty(&tmp_list)) {
+ struct urb *next_urb = list_first_entry(&tmp_list, struct urb,
+ urb_list);
+
+ list_del(&next_urb->urb_list);
+ _usbbk_free_urb(next_urb);
+ }
+}
+
static void usbbk_notify_work(usbif_t *usbif)
{
usbif->waiting_reqs = 1;
@@ -1059,8 +1093,11 @@ int usbbk_schedule(void *arg)
if (usbbk_start_submit_urb(usbif))
usbif->waiting_reqs = 1;
+
+ usbbk_free_urbs();
}
+ usbbk_free_urbs();
usbif->xenusbd = NULL;
usbif_put(usbif);
--- head-2010-05-25.orig/drivers/xen/usbfront/usbfront.h 2010-03-24 15:06:12.000000000 +0100
+++ head-2010-05-25/drivers/xen/usbfront/usbfront.h 2010-03-24 15:10:29.000000000 +0100
@@ -82,6 +82,7 @@ struct urb_priv {
struct urb *urb;
int req_id; /* RING_REQUEST id for submitting */
int unlink_req_id; /* RING_REQUEST id for unlinking */
+ int status;
unsigned unlinked:1; /* dequeued marker */
};
--- head-2010-05-25.orig/drivers/xen/usbfront/usbfront-hcd.c 2009-10-15 11:45:41.000000000 +0200
+++ head-2010-05-25/drivers/xen/usbfront/usbfront-hcd.c 2010-03-24 15:10:29.000000000 +0100
@@ -114,7 +114,6 @@ static void xenhcd_stop(struct usb_hcd *
* non-error returns are promise to giveback the urb later
*/
static int xenhcd_urb_enqueue(struct usb_hcd *hcd,
- struct usb_host_endpoint *ep,
struct urb *urb,
gfp_t mem_flags)
{
@@ -130,6 +129,7 @@ static int xenhcd_urb_enqueue(struct usb
ret = -ENOMEM;
goto done;
}
+ urbp->status = 1;
ret = xenhcd_submit_urb(info, urbp);
if (ret != 0)
@@ -144,7 +144,7 @@ done:
* called as .urb_dequeue()
*/
static int xenhcd_urb_dequeue(struct usb_hcd *hcd,
- struct urb *urb)
+ struct urb *urb, int status)
{
struct usbfront_info *info = hcd_to_info(hcd);
struct urb_priv *urbp;
@@ -157,6 +157,7 @@ static int xenhcd_urb_dequeue(struct usb
if (!urbp)
goto done;
+ urbp->status = status;
ret = xenhcd_unlink_urb(info, urbp);
done:
--- head-2010-05-25.orig/drivers/xen/usbfront/usbfront-q.c 2010-03-24 15:06:12.000000000 +0100
+++ head-2010-05-25/drivers/xen/usbfront/usbfront-q.c 2010-03-24 15:10:29.000000000 +0100
@@ -236,7 +236,8 @@ __acquires(info->lock)
COUNT(info->stats.complete);
}
spin_unlock(&info->lock);
- usb_hcd_giveback_urb(info_to_hcd(info), urb);
+ usb_hcd_giveback_urb(info_to_hcd(info), urb,
+ urbp->status <= 0 ? urbp->status : urb->status);
spin_lock(&info->lock);
}
--- head-2010-05-25.orig/drivers/xen/xenbus/xenbus_probe.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/xenbus/xenbus_probe.c 2010-03-24 15:10:29.000000000 +0100
@@ -175,11 +175,9 @@ static int read_backend_details(struct x
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) && (defined(CONFIG_XEN) || defined(MODULE))
-static int xenbus_uevent_frontend(struct device *dev, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int xenbus_uevent_frontend(struct device *dev, struct kobj_uevent_env *env)
{
struct xenbus_device *xdev;
- int length = 0, i = 0;
if (dev == NULL)
return -ENODEV;
@@ -188,12 +186,9 @@ static int xenbus_uevent_frontend(struct
return -ENODEV;
/* stuff we want to pass to /sbin/hotplug */
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "XENBUS_TYPE=%s", xdev->devicetype);
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "XENBUS_PATH=%s", xdev->nodename);
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "MODALIAS=xen:%s", xdev->devicetype);
+ add_uevent_var(env, "XENBUS_TYPE=%s", xdev->devicetype);
+ add_uevent_var(env, "XENBUS_PATH=%s", xdev->nodename);
+ add_uevent_var(env, "MODALIAS=xen:%s", xdev->devicetype);
return 0;
}
--- head-2010-05-25.orig/drivers/xen/xenbus/xenbus_probe_backend.c 2010-03-24 15:09:22.000000000 +0100
+++ head-2010-05-25/drivers/xen/xenbus/xenbus_probe_backend.c 2010-03-24 15:10:29.000000000 +0100
@@ -60,8 +60,7 @@
#include <xen/platform-compat.h>
#endif
-static int xenbus_uevent_backend(struct device *dev, char **envp,
- int num_envp, char *buffer, int buffer_size);
+static int xenbus_uevent_backend(struct device *dev, struct kobj_uevent_env *env);
static int xenbus_probe_backend(const char *type, const char *domid);
extern int read_otherend_details(struct xenbus_device *xendev,
@@ -128,13 +127,10 @@ static struct xen_bus_type xenbus_backen
},
};
-static int xenbus_uevent_backend(struct device *dev, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int xenbus_uevent_backend(struct device *dev, struct kobj_uevent_env *env)
{
struct xenbus_device *xdev;
struct xenbus_driver *drv;
- int i = 0;
- int length = 0;
DPRINTK("");
@@ -146,27 +142,16 @@ static int xenbus_uevent_backend(struct
return -ENODEV;
/* stuff we want to pass to /sbin/hotplug */
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "XENBUS_TYPE=%s", xdev->devicetype);
+ add_uevent_var(env, "XENBUS_TYPE=%s", xdev->devicetype);
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "XENBUS_PATH=%s", xdev->nodename);
+ add_uevent_var(env, "XENBUS_PATH=%s", xdev->nodename);
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
- "XENBUS_BASE_PATH=%s", xenbus_backend.root);
-
- /* terminate, set to next free slot, shrink available space */
- envp[i] = NULL;
- envp = &envp[i];
- num_envp -= i;
- buffer = &buffer[length];
- buffer_size -= length;
+ add_uevent_var(env, "XENBUS_BASE_PATH=%s", xenbus_backend.root);
if (dev->driver) {
drv = to_xenbus_driver(dev->driver);
if (drv && drv->uevent)
- return drv->uevent(xdev, envp, num_envp, buffer,
- buffer_size);
+ return drv->uevent(xdev, env);
}
return 0;
--- head-2010-05-25.orig/drivers/xen/xenoprof/xenoprofile.c 2010-03-24 15:09:08.000000000 +0100
+++ head-2010-05-25/drivers/xen/xenoprof/xenoprofile.c 2010-03-24 15:10:29.000000000 +0100
@@ -29,7 +29,6 @@
#include <xen/driver_util.h>
#include <xen/interface/xen.h>
#include <xen/interface/xenoprof.h>
-#include "../../../drivers/oprofile/cpu_buffer.h"
#include "../../../drivers/oprofile/event_buffer.h"
#define MAX_XENOPROF_SAMPLES 16
@@ -142,8 +141,7 @@ static void xenoprof_add_pc(xenoprof_buf
if (xenoprof_is_escape(buf, tail) &&
xenoprof_get_event(buf, tail) == XENOPROF_TRACE_BEGIN) {
tracing=1;
- oprofile_add_pc(ESCAPE_CODE, buf->event_log[tail].mode,
- CPU_TRACE_BEGIN);
+ oprofile_add_mode(buf->event_log[tail].mode);
if (!is_passive)
oprofile_samples++;
else
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/agp.h 2007-06-22 09:08:06.000000000 +0200
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/agp.h 2010-03-24 15:10:29.000000000 +0100
@@ -1,20 +1,22 @@
-#ifndef AGP_H
-#define AGP_H 1
+#ifndef _ASM_X86_AGP_H
+#define _ASM_X86_AGP_H
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
#include <asm/system.h>
-/*
- * Functions to keep the agpgart mappings coherent with the MMU.
- * The GART gives the CPU a physical alias of pages in memory. The alias region is
- * mapped uncacheable. Make sure there are no conflicting mappings
- * with different cachability attributes for the same page. This avoids
- * data corruption on some CPUs.
+/*
+ * Functions to keep the agpgart mappings coherent with the MMU. The
+ * GART gives the CPU a physical alias of pages in memory. The alias
+ * region is mapped uncacheable. Make sure there are no conflicting
+ * mappings with different cachability attributes for the same
+ * page. This avoids data corruption on some CPUs.
*/
-/* Caller's responsibility to call global_flush_tlb() for
- * performance reasons */
+/*
+ * Caller's responsibility to call global_flush_tlb() for performance
+ * reasons
+ */
#define map_page_into_agp(page) ( \
xen_create_contiguous_region((unsigned long)page_address(page), 0, 32) \
?: change_page_attr(page, 1, PAGE_KERNEL_NOCACHE))
@@ -24,9 +26,11 @@
change_page_attr(page, 1, PAGE_KERNEL))
#define flush_agp_mappings() global_flush_tlb()
-/* Could use CLFLUSH here if the cpu supports it. But then it would
- need to be called for each cacheline of the whole page so it may not be
- worth it. Would need a page for it. */
+/*
+ * Could use CLFLUSH here if the cpu supports it. But then it would
+ * need to be called for each cacheline of the whole page so it may
+ * not be worth it. Would need a page for it.
+ */
#define flush_agp_cache() wbinvd()
/* Convert a physical address to an address suitable for the GART. */
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/desc.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "desc_32.h"
+#else
+# include "desc_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/desc_64.h 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/desc_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -34,6 +34,18 @@ static inline void clear_LDT(void)
put_cpu();
}
+#ifndef CONFIG_X86_NO_TSS
+static inline unsigned long __store_tr(void)
+{
+ unsigned long tr;
+
+ asm volatile ("str %w0":"=r" (tr));
+ return tr;
+}
+
+#define store_tr(tr) (tr) = __store_tr()
+#endif
+
/*
* This is the ldt that every process will get unless we need
* something other than this.
@@ -47,6 +59,18 @@ extern struct desc_ptr cpu_gdt_descr[];
/* the cpu gdt accessor */
#define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
+#ifndef CONFIG_XEN
+static inline void load_gdt(const struct desc_ptr *ptr)
+{
+ asm volatile("lgdt %w0"::"m" (*ptr));
+}
+
+static inline void store_gdt(struct desc_ptr *ptr)
+{
+ asm("sgdt %w0":"=m" (*ptr));
+}
+#endif
+
static inline void _set_gate(void *adr, unsigned type, unsigned long func, unsigned dpl, unsigned ist)
{
struct gate_struct s;
@@ -87,6 +111,16 @@ static inline void set_system_gate_ist(i
{
_set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 3, ist);
}
+
+static inline void load_idt(const struct desc_ptr *ptr)
+{
+ asm volatile("lidt %w0"::"m" (*ptr));
+}
+
+static inline void store_idt(struct desc_ptr *dtr)
+{
+ asm("sidt %w0":"=m" (*dtr));
+}
#endif
static inline void set_tssldt_descriptor(void *ptr, unsigned long tss, unsigned type,
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/dma-mapping.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "dma-mapping_32.h"
+#else
+# include "dma-mapping_64.h"
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/fixmap.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "fixmap_32.h"
+#else
+# include "fixmap_64.h"
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/hypercall.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,420 @@
+/******************************************************************************
+ * hypercall.h
+ *
+ * Linux-specific hypervisor handling.
+ *
+ * Copyright (c) 2002-2004, K A Fraser
+ *
+ * 64-bit updates:
+ * Benjamin Liu <benjamin.liu@intel.com>
+ * Jun Nakajima <jun.nakajima@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy, modify,
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef __HYPERCALL_H__
+#define __HYPERCALL_H__
+
+#ifndef __HYPERVISOR_H__
+# error "please don't include this file directly"
+#endif
+
+#if CONFIG_XEN_COMPAT <= 0x030002
+# include <linux/string.h> /* memcpy() */
+#endif
+
+#ifdef CONFIG_XEN
+#define HYPERCALL_ASM_OPERAND "%c"
+#define HYPERCALL_LOCATION(op) (hypercall_page + (op) * 32)
+#define HYPERCALL_C_OPERAND(name) "i" (HYPERCALL_LOCATION(__HYPERVISOR_##name))
+#else
+#define HYPERCALL_ASM_OPERAND "*%"
+#define HYPERCALL_LOCATION(op) (hypercall_stubs + (op) * 32)
+#define HYPERCALL_C_OPERAND(name) "g" (HYPERCALL_LOCATION(__HYPERVISOR_##name))
+#endif
+
+#define HYPERCALL_ARG(arg, n) \
+ register typeof((arg)+0) __arg##n asm(HYPERCALL_arg##n) = (arg)
+
+#define _hypercall0(type, name) \
+({ \
+ type __res; \
+ asm volatile ( \
+ "call " HYPERCALL_ASM_OPERAND "1" \
+ : "=a" (__res) \
+ : HYPERCALL_C_OPERAND(name) \
+ : "memory" ); \
+ __res; \
+})
+
+#define _hypercall1(type, name, arg) \
+({ \
+ type __res; \
+ HYPERCALL_ARG(arg, 1); \
+ asm volatile ( \
+ "call " HYPERCALL_ASM_OPERAND "2" \
+ : "=a" (__res), "+r" (__arg1) \
+ : HYPERCALL_C_OPERAND(name) \
+ : "memory" ); \
+ __res; \
+})
+
+#define _hypercall2(type, name, a1, a2) \
+({ \
+ type __res; \
+ HYPERCALL_ARG(a1, 1); \
+ HYPERCALL_ARG(a2, 2); \
+ asm volatile ( \
+ "call " HYPERCALL_ASM_OPERAND "3" \
+ : "=a" (__res), "+r" (__arg1), "+r" (__arg2) \
+ : HYPERCALL_C_OPERAND(name) \
+ : "memory" ); \
+ __res; \
+})
+
+#define _hypercall3(type, name, a1, a2, a3) \
+({ \
+ type __res; \
+ HYPERCALL_ARG(a1, 1); \
+ HYPERCALL_ARG(a2, 2); \
+ HYPERCALL_ARG(a3, 3); \
+ asm volatile ( \
+ "call " HYPERCALL_ASM_OPERAND "4" \
+ : "=a" (__res), "+r" (__arg1), \
+ "+r" (__arg2), "+r" (__arg3) \
+ : HYPERCALL_C_OPERAND(name) \
+ : "memory" ); \
+ __res; \
+})
+
+#define _hypercall4(type, name, a1, a2, a3, a4) \
+({ \
+ type __res; \
+ HYPERCALL_ARG(a1, 1); \
+ HYPERCALL_ARG(a2, 2); \
+ HYPERCALL_ARG(a3, 3); \
+ HYPERCALL_ARG(a4, 4); \
+ asm volatile ( \
+ "call " HYPERCALL_ASM_OPERAND "5" \
+ : "=a" (__res), "+r" (__arg1), "+r" (__arg2), \
+ "+r" (__arg3), "+r" (__arg4) \
+ : HYPERCALL_C_OPERAND(name) \
+ : "memory" ); \
+ __res; \
+})
+
+#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
+({ \
+ type __res; \
+ HYPERCALL_ARG(a1, 1); \
+ HYPERCALL_ARG(a2, 2); \
+ HYPERCALL_ARG(a3, 3); \
+ HYPERCALL_ARG(a4, 4); \
+ HYPERCALL_ARG(a5, 5); \
+ asm volatile ( \
+ "call " HYPERCALL_ASM_OPERAND "6" \
+ : "=a" (__res), "+r" (__arg1), "+r" (__arg2), \
+ "+r" (__arg3), "+r" (__arg4), "+r" (__arg5) \
+ : HYPERCALL_C_OPERAND(name) \
+ : "memory" ); \
+ __res; \
+})
+
+#define _hypercall(type, op, a1, a2, a3, a4, a5) \
+({ \
+ type __res; \
+ HYPERCALL_ARG(a1, 1); \
+ HYPERCALL_ARG(a2, 2); \
+ HYPERCALL_ARG(a3, 3); \
+ HYPERCALL_ARG(a4, 4); \
+ HYPERCALL_ARG(a5, 5); \
+ asm volatile ( \
+ "call *%6" \
+ : "=a" (__res), "+r" (__arg1), "+r" (__arg2), \
+ "+r" (__arg3), "+r" (__arg4), "+r" (__arg5) \
+ : "g" (HYPERCALL_LOCATION(op)) \
+ : "memory" ); \
+ __res; \
+})
+
+#ifdef CONFIG_X86_32
+# include "hypercall_32.h"
+#else
+# include "hypercall_64.h"
+#endif
+
+static inline int __must_check
+HYPERVISOR_set_trap_table(
+ const trap_info_t *table)
+{
+ return _hypercall1(int, set_trap_table, table);
+}
+
+static inline int __must_check
+HYPERVISOR_mmu_update(
+ mmu_update_t *req, unsigned int count, unsigned int *success_count,
+ domid_t domid)
+{
+ if (arch_use_lazy_mmu_mode())
+ return xen_multi_mmu_update(req, count, success_count, domid);
+ return _hypercall4(int, mmu_update, req, count, success_count, domid);
+}
+
+static inline int __must_check
+HYPERVISOR_mmuext_op(
+ struct mmuext_op *op, unsigned int count, unsigned int *success_count,
+ domid_t domid)
+{
+ if (arch_use_lazy_mmu_mode())
+ return xen_multi_mmuext_op(op, count, success_count, domid);
+ return _hypercall4(int, mmuext_op, op, count, success_count, domid);
+}
+
+static inline int __must_check
+HYPERVISOR_set_gdt(
+ unsigned long *frame_list, unsigned int entries)
+{
+ return _hypercall2(int, set_gdt, frame_list, entries);
+}
+
+static inline int __must_check
+HYPERVISOR_stack_switch(
+ unsigned long ss, unsigned long esp)
+{
+ return _hypercall2(int, stack_switch, ss, esp);
+}
+
+static inline int
+HYPERVISOR_fpu_taskswitch(
+ int set)
+{
+ return _hypercall1(int, fpu_taskswitch, set);
+}
+
+#if CONFIG_XEN_COMPAT <= 0x030002
+static inline int __must_check
+HYPERVISOR_sched_op_compat(
+ int cmd, unsigned long arg)
+{
+ return _hypercall2(int, sched_op_compat, cmd, arg);
+}
+#endif
+
+static inline int __must_check
+HYPERVISOR_sched_op(
+ int cmd, void *arg)
+{
+ return _hypercall2(int, sched_op, cmd, arg);
+}
+
+static inline int __must_check
+HYPERVISOR_platform_op(
+ struct xen_platform_op *platform_op)
+{
+ platform_op->interface_version = XENPF_INTERFACE_VERSION;
+ return _hypercall1(int, platform_op, platform_op);
+}
+
+struct xen_mc;
+static inline int __must_check
+HYPERVISOR_mca(
+ struct xen_mc *mc_op)
+{
+ mc_op->interface_version = XEN_MCA_INTERFACE_VERSION;
+ return _hypercall1(int, mca, mc_op);
+}
+
+static inline int __must_check
+HYPERVISOR_set_debugreg(
+ unsigned int reg, unsigned long value)
+{
+ return _hypercall2(int, set_debugreg, reg, value);
+}
+
+static inline unsigned long __must_check
+HYPERVISOR_get_debugreg(
+ unsigned int reg)
+{
+ return _hypercall1(unsigned long, get_debugreg, reg);
+}
+
+static inline int __must_check
+HYPERVISOR_memory_op(
+ unsigned int cmd, void *arg)
+{
+ if (arch_use_lazy_mmu_mode())
+ xen_multicall_flush(false);
+ return _hypercall2(int, memory_op, cmd, arg);
+}
+
+static inline int __must_check
+HYPERVISOR_multicall(
+ multicall_entry_t *call_list, unsigned int nr_calls)
+{
+ return _hypercall2(int, multicall, call_list, nr_calls);
+}
+
+static inline int __must_check
+HYPERVISOR_event_channel_op(
+ int cmd, void *arg)
+{
+ int rc = _hypercall2(int, event_channel_op, cmd, arg);
+
+#if CONFIG_XEN_COMPAT <= 0x030002
+ if (unlikely(rc == -ENOSYS)) {
+ struct evtchn_op op;
+ op.cmd = cmd;
+ memcpy(&op.u, arg, sizeof(op.u));
+ rc = _hypercall1(int, event_channel_op_compat, &op);
+ memcpy(arg, &op.u, sizeof(op.u));
+ }
+#endif
+
+ return rc;
+}
+
+static inline int __must_check
+HYPERVISOR_xen_version(
+ int cmd, void *arg)
+{
+ return _hypercall2(int, xen_version, cmd, arg);
+}
+
+static inline int __must_check
+HYPERVISOR_console_io(
+ int cmd, unsigned int count, char *str)
+{
+ return _hypercall3(int, console_io, cmd, count, str);
+}
+
+static inline int __must_check
+HYPERVISOR_physdev_op(
+ int cmd, void *arg)
+{
+ int rc = _hypercall2(int, physdev_op, cmd, arg);
+
+#if CONFIG_XEN_COMPAT <= 0x030002
+ if (unlikely(rc == -ENOSYS)) {
+ struct physdev_op op;
+ op.cmd = cmd;
+ memcpy(&op.u, arg, sizeof(op.u));
+ rc = _hypercall1(int, physdev_op_compat, &op);
+ memcpy(arg, &op.u, sizeof(op.u));
+ }
+#endif
+
+ return rc;
+}
+
+static inline int __must_check
+HYPERVISOR_grant_table_op(
+ unsigned int cmd, void *uop, unsigned int count)
+{
+ if (arch_use_lazy_mmu_mode())
+ xen_multicall_flush(false);
+ return _hypercall3(int, grant_table_op, cmd, uop, count);
+}
+
+static inline int __must_check
+HYPERVISOR_vm_assist(
+ unsigned int cmd, unsigned int type)
+{
+ return _hypercall2(int, vm_assist, cmd, type);
+}
+
+static inline int __must_check
+HYPERVISOR_vcpu_op(
+ int cmd, unsigned int vcpuid, void *extra_args)
+{
+ return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
+}
+
+static inline int __must_check
+HYPERVISOR_suspend(
+ unsigned long srec)
+{
+ struct sched_shutdown sched_shutdown = {
+ .reason = SHUTDOWN_suspend
+ };
+
+ int rc = _hypercall3(int, sched_op, SCHEDOP_shutdown,
+ &sched_shutdown, srec);
+
+#if CONFIG_XEN_COMPAT <= 0x030002
+ if (rc == -ENOSYS)
+ rc = _hypercall3(int, sched_op_compat, SCHEDOP_shutdown,
+ SHUTDOWN_suspend, srec);
+#endif
+
+ return rc;
+}
+
+#if CONFIG_XEN_COMPAT <= 0x030002
+static inline int
+HYPERVISOR_nmi_op(
+ unsigned long op, void *arg)
+{
+ return _hypercall2(int, nmi_op, op, arg);
+}
+#endif
+
+#ifndef CONFIG_XEN
+static inline unsigned long __must_check
+HYPERVISOR_hvm_op(
+ int op, void *arg)
+{
+ return _hypercall2(unsigned long, hvm_op, op, arg);
+}
+#endif
+
+static inline int __must_check
+HYPERVISOR_callback_op(
+ int cmd, const void *arg)
+{
+ return _hypercall2(int, callback_op, cmd, arg);
+}
+
+static inline int __must_check
+HYPERVISOR_xenoprof_op(
+ int op, void *arg)
+{
+ return _hypercall2(int, xenoprof_op, op, arg);
+}
+
+static inline int __must_check
+HYPERVISOR_kexec_op(
+ unsigned long op, void *args)
+{
+ return _hypercall2(int, kexec_op, op, args);
+}
+
+static inline int __must_check
+HYPERVISOR_tmem_op(
+ struct tmem_op *op)
+{
+ return _hypercall1(int, tmem_op, op);
+}
+
+#endif /* __HYPERCALL_H__ */
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/hypercall_32.h 2010-03-24 15:06:12.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/hypercall_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -1,191 +1,10 @@
-/******************************************************************************
- * hypercall.h
- *
- * Linux-specific hypervisor handling.
- *
- * Copyright (c) 2002-2004, K A Fraser
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation; or, when distributed
- * separately from the Linux kernel or incorporated into other
- * software packages, subject to the following license:
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this source file (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use, copy, modify,
- * merge, publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#ifndef __HYPERCALL_H__
-#define __HYPERCALL_H__
-
-#include <linux/string.h> /* memcpy() */
-#include <linux/stringify.h>
-
-#ifndef __HYPERVISOR_H__
-# error "please don't include this file directly"
-#endif
-
-#ifdef CONFIG_XEN
-#define HYPERCALL_STR(name) \
- "call hypercall_page + ("__stringify(__HYPERVISOR_##name)" * 32)"
-#else
-#define HYPERCALL_STR(name) \
- "mov hypercall_stubs,%%eax; " \
- "add $("__stringify(__HYPERVISOR_##name)" * 32),%%eax; "\
- "call *%%eax"
-#endif
-
-#define _hypercall0(type, name) \
-({ \
- type __res; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res) \
- : \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall1(type, name, a1) \
-({ \
- type __res; \
- long __ign1; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=b" (__ign1) \
- : "1" ((long)(a1)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall2(type, name, a1, a2) \
-({ \
- type __res; \
- long __ign1, __ign2; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=b" (__ign1), "=c" (__ign2) \
- : "1" ((long)(a1)), "2" ((long)(a2)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall3(type, name, a1, a2, a3) \
-({ \
- type __res; \
- long __ign1, __ign2, __ign3; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
- "=d" (__ign3) \
- : "1" ((long)(a1)), "2" ((long)(a2)), \
- "3" ((long)(a3)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall4(type, name, a1, a2, a3, a4) \
-({ \
- type __res; \
- long __ign1, __ign2, __ign3, __ign4; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
- "=d" (__ign3), "=S" (__ign4) \
- : "1" ((long)(a1)), "2" ((long)(a2)), \
- "3" ((long)(a3)), "4" ((long)(a4)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
-({ \
- type __res; \
- long __ign1, __ign2, __ign3, __ign4, __ign5; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
- "=d" (__ign3), "=S" (__ign4), "=D" (__ign5) \
- : "1" ((long)(a1)), "2" ((long)(a2)), \
- "3" ((long)(a3)), "4" ((long)(a4)), \
- "5" ((long)(a5)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall(type, op, a1, a2, a3, a4, a5) \
-({ \
- type __res; \
- register typeof((a1)+0) __arg1 asm("ebx") = (a1); \
- register typeof((a2)+0) __arg2 asm("ecx") = (a2); \
- register typeof((a3)+0) __arg3 asm("edx") = (a3); \
- register typeof((a4)+0) __arg4 asm("esi") = (a4); \
- register typeof((a5)+0) __arg5 asm("edi") = (a5); \
- asm volatile ( \
- "call *%6" \
- : "=a" (__res), "+r" (__arg1), "+r" (__arg2), \
- "+r" (__arg3), "+r" (__arg4), "+r" (__arg5) \
- : "0" (hypercall_page + (op) * 32) \
- : "memory" ); \
- __res; \
-})
-
-static inline int __must_check
-HYPERVISOR_set_trap_table(
- const trap_info_t *table)
-{
- return _hypercall1(int, set_trap_table, table);
-}
-
-static inline int __must_check
-HYPERVISOR_mmu_update(
- mmu_update_t *req, unsigned int count, unsigned int *success_count,
- domid_t domid)
-{
- if (arch_use_lazy_mmu_mode())
- return xen_multi_mmu_update(req, count, success_count, domid);
- return _hypercall4(int, mmu_update, req, count, success_count, domid);
-}
-
-static inline int __must_check
-HYPERVISOR_mmuext_op(
- struct mmuext_op *op, unsigned int count, unsigned int *success_count,
- domid_t domid)
-{
- if (arch_use_lazy_mmu_mode())
- return xen_multi_mmuext_op(op, count, success_count, domid);
- return _hypercall4(int, mmuext_op, op, count, success_count, domid);
-}
-
-static inline int __must_check
-HYPERVISOR_set_gdt(
- unsigned long *frame_list, unsigned int entries)
-{
- return _hypercall2(int, set_gdt, frame_list, entries);
-}
-
-static inline int __must_check
-HYPERVISOR_stack_switch(
- unsigned long ss, unsigned long esp)
-{
- return _hypercall2(int, stack_switch, ss, esp);
-}
+#define HYPERCALL_arg1 "ebx"
+#define HYPERCALL_arg2 "ecx"
+#define HYPERCALL_arg3 "edx"
+#define HYPERCALL_arg4 "esi"
+#define HYPERCALL_arg5 "edi"
+#if CONFIG_XEN_COMPAT <= 0x030002
static inline int __must_check
HYPERVISOR_set_callbacks(
unsigned long event_selector, unsigned long event_address,
@@ -195,80 +14,24 @@ HYPERVISOR_set_callbacks(
event_selector, event_address,
failsafe_selector, failsafe_address);
}
-
-static inline int
-HYPERVISOR_fpu_taskswitch(
- int set)
-{
- return _hypercall1(int, fpu_taskswitch, set);
-}
-
-static inline int __must_check
-HYPERVISOR_sched_op_compat(
- int cmd, unsigned long arg)
-{
- return _hypercall2(int, sched_op_compat, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_sched_op(
- int cmd, void *arg)
-{
- return _hypercall2(int, sched_op, cmd, arg);
-}
+#endif
static inline long __must_check
HYPERVISOR_set_timer_op(
u64 timeout)
{
- unsigned long timeout_hi = (unsigned long)(timeout>>32);
- unsigned long timeout_lo = (unsigned long)timeout;
- return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi);
-}
-
-static inline int __must_check
-HYPERVISOR_platform_op(
- struct xen_platform_op *platform_op)
-{
- platform_op->interface_version = XENPF_INTERFACE_VERSION;
- return _hypercall1(int, platform_op, platform_op);
-}
-
-static inline int __must_check
-HYPERVISOR_set_debugreg(
- unsigned int reg, unsigned long value)
-{
- return _hypercall2(int, set_debugreg, reg, value);
-}
-
-static inline unsigned long __must_check
-HYPERVISOR_get_debugreg(
- unsigned int reg)
-{
- return _hypercall1(unsigned long, get_debugreg, reg);
+ return _hypercall2(long, set_timer_op,
+ (unsigned long)timeout,
+ (unsigned long)(timeout>>32));
}
static inline int __must_check
HYPERVISOR_update_descriptor(
u64 ma, u64 desc)
{
- return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32);
-}
-
-static inline int __must_check
-HYPERVISOR_memory_op(
- unsigned int cmd, void *arg)
-{
- if (arch_use_lazy_mmu_mode())
- xen_multicall_flush(false);
- return _hypercall2(int, memory_op, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_multicall(
- multicall_entry_t *call_list, unsigned int nr_calls)
-{
- return _hypercall2(int, multicall, call_list, nr_calls);
+ return _hypercall4(int, update_descriptor,
+ (unsigned long)ma, (unsigned long)(ma>>32),
+ (unsigned long)desc, (unsigned long)(desc>>32));
}
static inline int __must_check
@@ -287,67 +50,6 @@ HYPERVISOR_update_va_mapping(
}
static inline int __must_check
-HYPERVISOR_event_channel_op(
- int cmd, void *arg)
-{
- int rc = _hypercall2(int, event_channel_op, cmd, arg);
-
-#if CONFIG_XEN_COMPAT <= 0x030002
- if (unlikely(rc == -ENOSYS)) {
- struct evtchn_op op;
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, event_channel_op_compat, &op);
- memcpy(arg, &op.u, sizeof(op.u));
- }
-#endif
-
- return rc;
-}
-
-static inline int __must_check
-HYPERVISOR_xen_version(
- int cmd, void *arg)
-{
- return _hypercall2(int, xen_version, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_console_io(
- int cmd, unsigned int count, char *str)
-{
- return _hypercall3(int, console_io, cmd, count, str);
-}
-
-static inline int __must_check
-HYPERVISOR_physdev_op(
- int cmd, void *arg)
-{
- int rc = _hypercall2(int, physdev_op, cmd, arg);
-
-#if CONFIG_XEN_COMPAT <= 0x030002
- if (unlikely(rc == -ENOSYS)) {
- struct physdev_op op;
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, physdev_op_compat, &op);
- memcpy(arg, &op.u, sizeof(op.u));
- }
-#endif
-
- return rc;
-}
-
-static inline int __must_check
-HYPERVISOR_grant_table_op(
- unsigned int cmd, void *uop, unsigned int count)
-{
- if (arch_use_lazy_mmu_mode())
- xen_multicall_flush(false);
- return _hypercall3(int, grant_table_op, cmd, uop, count);
-}
-
-static inline int __must_check
HYPERVISOR_update_va_mapping_otherdomain(
unsigned long va, pte_t new_val, unsigned long flags, domid_t domid)
{
@@ -358,86 +60,3 @@ HYPERVISOR_update_va_mapping_otherdomain
return _hypercall5(int, update_va_mapping_otherdomain, va,
new_val.pte_low, pte_hi, flags, domid);
}
-
-static inline int __must_check
-HYPERVISOR_vm_assist(
- unsigned int cmd, unsigned int type)
-{
- return _hypercall2(int, vm_assist, cmd, type);
-}
-
-static inline int __must_check
-HYPERVISOR_vcpu_op(
- int cmd, unsigned int vcpuid, void *extra_args)
-{
- return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
-}
-
-static inline int __must_check
-HYPERVISOR_suspend(
- unsigned long srec)
-{
- struct sched_shutdown sched_shutdown = {
- .reason = SHUTDOWN_suspend
- };
-
- int rc = _hypercall3(int, sched_op, SCHEDOP_shutdown,
- &sched_shutdown, srec);
-
-#if CONFIG_XEN_COMPAT <= 0x030002
- if (rc == -ENOSYS)
- rc = _hypercall3(int, sched_op_compat, SCHEDOP_shutdown,
- SHUTDOWN_suspend, srec);
-#endif
-
- return rc;
-}
-
-#if CONFIG_XEN_COMPAT <= 0x030002
-static inline int
-HYPERVISOR_nmi_op(
- unsigned long op, void *arg)
-{
- return _hypercall2(int, nmi_op, op, arg);
-}
-#endif
-
-#ifndef CONFIG_XEN
-static inline unsigned long __must_check
-HYPERVISOR_hvm_op(
- int op, void *arg)
-{
- return _hypercall2(unsigned long, hvm_op, op, arg);
-}
-#endif
-
-static inline int __must_check
-HYPERVISOR_callback_op(
- int cmd, const void *arg)
-{
- return _hypercall2(int, callback_op, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_xenoprof_op(
- int op, void *arg)
-{
- return _hypercall2(int, xenoprof_op, op, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_kexec_op(
- unsigned long op, void *args)
-{
- return _hypercall2(int, kexec_op, op, args);
-}
-
-static inline int __must_check
-HYPERVISOR_tmem_op(
- struct tmem_op *op)
-{
- return _hypercall1(int, tmem_op, op);
-}
-
-
-#endif /* __HYPERCALL_H__ */
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/hypercall_64.h 2010-03-24 15:06:12.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/hypercall_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -1,198 +1,10 @@
-/******************************************************************************
- * hypercall.h
- *
- * Linux-specific hypervisor handling.
- *
- * Copyright (c) 2002-2004, K A Fraser
- *
- * 64-bit updates:
- * Benjamin Liu <benjamin.liu@intel.com>
- * Jun Nakajima <jun.nakajima@intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation; or, when distributed
- * separately from the Linux kernel or incorporated into other
- * software packages, subject to the following license:
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this source file (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use, copy, modify,
- * merge, publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#ifndef __HYPERCALL_H__
-#define __HYPERCALL_H__
-
-#include <linux/string.h> /* memcpy() */
-#include <linux/stringify.h>
-#include <xen/interface/arch-x86/xen-mca.h>
-
-#ifndef __HYPERVISOR_H__
-# error "please don't include this file directly"
-#endif
-
-#ifdef CONFIG_XEN
-#define HYPERCALL_STR(name) \
- "call hypercall_page + ("__stringify(__HYPERVISOR_##name)" * 32)"
-#else
-#define HYPERCALL_STR(name) \
- "mov $("__stringify(__HYPERVISOR_##name)" * 32),%%eax; "\
- "add hypercall_stubs(%%rip),%%rax; " \
- "call *%%rax"
-#endif
-
-#define _hypercall0(type, name) \
-({ \
- type __res; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res) \
- : \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall1(type, name, a1) \
-({ \
- type __res; \
- long __ign1; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=D" (__ign1) \
- : "1" ((long)(a1)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall2(type, name, a1, a2) \
-({ \
- type __res; \
- long __ign1, __ign2; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=D" (__ign1), "=S" (__ign2) \
- : "1" ((long)(a1)), "2" ((long)(a2)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall3(type, name, a1, a2, a3) \
-({ \
- type __res; \
- long __ign1, __ign2, __ign3; \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=D" (__ign1), "=S" (__ign2), \
- "=d" (__ign3) \
- : "1" ((long)(a1)), "2" ((long)(a2)), \
- "3" ((long)(a3)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall4(type, name, a1, a2, a3, a4) \
-({ \
- type __res; \
- long __ign1, __ign2, __ign3; \
- register long __arg4 asm("r10") = (long)(a4); \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=D" (__ign1), "=S" (__ign2), \
- "=d" (__ign3), "+r" (__arg4) \
- : "1" ((long)(a1)), "2" ((long)(a2)), \
- "3" ((long)(a3)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
-({ \
- type __res; \
- long __ign1, __ign2, __ign3; \
- register long __arg4 asm("r10") = (long)(a4); \
- register long __arg5 asm("r8") = (long)(a5); \
- asm volatile ( \
- HYPERCALL_STR(name) \
- : "=a" (__res), "=D" (__ign1), "=S" (__ign2), \
- "=d" (__ign3), "+r" (__arg4), "+r" (__arg5) \
- : "1" ((long)(a1)), "2" ((long)(a2)), \
- "3" ((long)(a3)) \
- : "memory" ); \
- __res; \
-})
-
-#define _hypercall(type, op, a1, a2, a3, a4, a5) \
-({ \
- type __res; \
- register typeof((a1)+0) __arg1 asm("rdi") = (a1); \
- register typeof((a2)+0) __arg2 asm("rsi") = (a2); \
- register typeof((a3)+0) __arg3 asm("rdx") = (a3); \
- register typeof((a4)+0) __arg4 asm("r10") = (a4); \
- register typeof((a5)+0) __arg5 asm("r8") = (a5); \
- asm volatile ( \
- "call *%6" \
- : "=a" (__res), "+r" (__arg1), "+r" (__arg2), \
- "+r" (__arg3), "+r" (__arg4), "+r" (__arg5) \
- : "0" (hypercall_page + (op) * 32) \
- : "memory" ); \
- __res; \
-})
-
-static inline int __must_check
-HYPERVISOR_set_trap_table(
- const trap_info_t *table)
-{
- return _hypercall1(int, set_trap_table, table);
-}
-
-static inline int __must_check
-HYPERVISOR_mmu_update(
- mmu_update_t *req, unsigned int count, unsigned int *success_count,
- domid_t domid)
-{
- if (arch_use_lazy_mmu_mode())
- return xen_multi_mmu_update(req, count, success_count, domid);
- return _hypercall4(int, mmu_update, req, count, success_count, domid);
-}
-
-static inline int __must_check
-HYPERVISOR_mmuext_op(
- struct mmuext_op *op, unsigned int count, unsigned int *success_count,
- domid_t domid)
-{
- if (arch_use_lazy_mmu_mode())
- return xen_multi_mmuext_op(op, count, success_count, domid);
- return _hypercall4(int, mmuext_op, op, count, success_count, domid);
-}
-
-static inline int __must_check
-HYPERVISOR_set_gdt(
- unsigned long *frame_list, unsigned int entries)
-{
- return _hypercall2(int, set_gdt, frame_list, entries);
-}
-
-static inline int __must_check
-HYPERVISOR_stack_switch(
- unsigned long ss, unsigned long esp)
-{
- return _hypercall2(int, stack_switch, ss, esp);
-}
+#define HYPERCALL_arg1 "rdi"
+#define HYPERCALL_arg2 "rsi"
+#define HYPERCALL_arg3 "rdx"
+#define HYPERCALL_arg4 "r10"
+#define HYPERCALL_arg5 "r8"
+#if CONFIG_XEN_COMPAT <= 0x030002
static inline int __must_check
HYPERVISOR_set_callbacks(
unsigned long event_address, unsigned long failsafe_address,
@@ -201,27 +13,7 @@ HYPERVISOR_set_callbacks(
return _hypercall3(int, set_callbacks,
event_address, failsafe_address, syscall_address);
}
-
-static inline int
-HYPERVISOR_fpu_taskswitch(
- int set)
-{
- return _hypercall1(int, fpu_taskswitch, set);
-}
-
-static inline int __must_check
-HYPERVISOR_sched_op_compat(
- int cmd, unsigned long arg)
-{
- return _hypercall2(int, sched_op_compat, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_sched_op(
- int cmd, void *arg)
-{
- return _hypercall2(int, sched_op, cmd, arg);
-}
+#endif
static inline long __must_check
HYPERVISOR_set_timer_op(
@@ -231,34 +23,6 @@ HYPERVISOR_set_timer_op(
}
static inline int __must_check
-HYPERVISOR_platform_op(
- struct xen_platform_op *platform_op)
-{
- platform_op->interface_version = XENPF_INTERFACE_VERSION;
- return _hypercall1(int, platform_op, platform_op);
-}
-static inline int __must_check
-HYPERVISOR_mca(
- struct xen_mc *mc_op)
-{
- mc_op->interface_version = XEN_MCA_INTERFACE_VERSION;
- return _hypercall1(int, mca, mc_op);
-}
-static inline int __must_check
-HYPERVISOR_set_debugreg(
- unsigned int reg, unsigned long value)
-{
- return _hypercall2(int, set_debugreg, reg, value);
-}
-
-static inline unsigned long __must_check
-HYPERVISOR_get_debugreg(
- unsigned int reg)
-{
- return _hypercall1(unsigned long, get_debugreg, reg);
-}
-
-static inline int __must_check
HYPERVISOR_update_descriptor(
unsigned long ma, unsigned long word)
{
@@ -266,22 +30,6 @@ HYPERVISOR_update_descriptor(
}
static inline int __must_check
-HYPERVISOR_memory_op(
- unsigned int cmd, void *arg)
-{
- if (arch_use_lazy_mmu_mode())
- xen_multicall_flush(false);
- return _hypercall2(int, memory_op, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_multicall(
- multicall_entry_t *call_list, unsigned int nr_calls)
-{
- return _hypercall2(int, multicall, call_list, nr_calls);
-}
-
-static inline int __must_check
HYPERVISOR_update_va_mapping(
unsigned long va, pte_t new_val, unsigned long flags)
{
@@ -291,67 +39,6 @@ HYPERVISOR_update_va_mapping(
}
static inline int __must_check
-HYPERVISOR_event_channel_op(
- int cmd, void *arg)
-{
- int rc = _hypercall2(int, event_channel_op, cmd, arg);
-
-#if CONFIG_XEN_COMPAT <= 0x030002
- if (unlikely(rc == -ENOSYS)) {
- struct evtchn_op op;
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, event_channel_op_compat, &op);
- memcpy(arg, &op.u, sizeof(op.u));
- }
-#endif
-
- return rc;
-}
-
-static inline int __must_check
-HYPERVISOR_xen_version(
- int cmd, void *arg)
-{
- return _hypercall2(int, xen_version, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_console_io(
- int cmd, unsigned int count, char *str)
-{
- return _hypercall3(int, console_io, cmd, count, str);
-}
-
-static inline int __must_check
-HYPERVISOR_physdev_op(
- int cmd, void *arg)
-{
- int rc = _hypercall2(int, physdev_op, cmd, arg);
-
-#if CONFIG_XEN_COMPAT <= 0x030002
- if (unlikely(rc == -ENOSYS)) {
- struct physdev_op op;
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, physdev_op_compat, &op);
- memcpy(arg, &op.u, sizeof(op.u));
- }
-#endif
-
- return rc;
-}
-
-static inline int __must_check
-HYPERVISOR_grant_table_op(
- unsigned int cmd, void *uop, unsigned int count)
-{
- if (arch_use_lazy_mmu_mode())
- xen_multicall_flush(false);
- return _hypercall3(int, grant_table_op, cmd, uop, count);
-}
-
-static inline int __must_check
HYPERVISOR_update_va_mapping_otherdomain(
unsigned long va, pte_t new_val, unsigned long flags, domid_t domid)
{
@@ -360,90 +47,8 @@ HYPERVISOR_update_va_mapping_otherdomain
}
static inline int __must_check
-HYPERVISOR_vm_assist(
- unsigned int cmd, unsigned int type)
-{
- return _hypercall2(int, vm_assist, cmd, type);
-}
-
-static inline int __must_check
-HYPERVISOR_vcpu_op(
- int cmd, unsigned int vcpuid, void *extra_args)
-{
- return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
-}
-
-static inline int __must_check
HYPERVISOR_set_segment_base(
int reg, unsigned long value)
{
return _hypercall2(int, set_segment_base, reg, value);
}
-
-static inline int __must_check
-HYPERVISOR_suspend(
- unsigned long srec)
-{
- struct sched_shutdown sched_shutdown = {
- .reason = SHUTDOWN_suspend
- };
-
- int rc = _hypercall3(int, sched_op, SCHEDOP_shutdown,
- &sched_shutdown, srec);
-
-#if CONFIG_XEN_COMPAT <= 0x030002
- if (rc == -ENOSYS)
- rc = _hypercall3(int, sched_op_compat, SCHEDOP_shutdown,
- SHUTDOWN_suspend, srec);
-#endif
-
- return rc;
-}
-
-#if CONFIG_XEN_COMPAT <= 0x030002
-static inline int
-HYPERVISOR_nmi_op(
- unsigned long op, void *arg)
-{
- return _hypercall2(int, nmi_op, op, arg);
-}
-#endif
-
-#ifndef CONFIG_XEN
-static inline unsigned long __must_check
-HYPERVISOR_hvm_op(
- int op, void *arg)
-{
- return _hypercall2(unsigned long, hvm_op, op, arg);
-}
-#endif
-
-static inline int __must_check
-HYPERVISOR_callback_op(
- int cmd, const void *arg)
-{
- return _hypercall2(int, callback_op, cmd, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_xenoprof_op(
- int op, void *arg)
-{
- return _hypercall2(int, xenoprof_op, op, arg);
-}
-
-static inline int __must_check
-HYPERVISOR_kexec_op(
- unsigned long op, void *args)
-{
- return _hypercall2(int, kexec_op, op, args);
-}
-
-static inline int __must_check
-HYPERVISOR_tmem_op(
- struct tmem_op *op)
-{
- return _hypercall1(int, tmem_op, op);
-}
-
-#endif /* __HYPERCALL_H__ */
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/hypervisor.h 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/hypervisor.h 2010-03-24 15:10:29.000000000 +0100
@@ -44,6 +44,7 @@
#include <xen/interface/sched.h>
#include <xen/interface/nmi.h>
#include <xen/interface/tmem.h>
+#include <xen/interface/arch-x86/xen-mca.h>
#include <asm/percpu.h>
#include <asm/ptrace.h>
#include <asm/page.h>
@@ -200,7 +201,6 @@ static inline void xen_multicall_flush(b
extern char hypercall_page[PAGE_SIZE];
#else
extern char *hypercall_stubs;
-#define hypercall_page hypercall_stubs
#define is_running_on_xen() (!!hypercall_stubs)
#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/io.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "io_32.h"
+#else
+# include "io_64.h"
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/irqflags.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "irqflags_32.h"
+#else
+# include "irqflags_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/irqflags_32.h 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/irqflags_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -150,6 +150,23 @@ static inline int raw_irqs_disabled_flag
\
raw_irqs_disabled_flags(flags); \
})
+
+/*
+ * makes the traced hardirq state match with the machine state
+ *
+ * should be a rarely used function, only in places where its
+ * otherwise impossible to know the irq state, like in traps.
+ */
+static inline void trace_hardirqs_fixup_flags(unsigned long flags)
+{
+ if (raw_irqs_disabled_flags(flags))
+ trace_hardirqs_off();
+ else
+ trace_hardirqs_on();
+}
+
+#define trace_hardirqs_fixup() \
+ trace_hardirqs_fixup_flags(__raw_local_save_flags())
#endif /* __ASSEMBLY__ */
/*
@@ -181,4 +198,17 @@ static inline int raw_irqs_disabled_flag
# define TRACE_IRQS_OFF
#endif
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+# define LOCKDEP_SYS_EXIT \
+ pushl %eax; \
+ pushl %ecx; \
+ pushl %edx; \
+ call lockdep_sys_exit; \
+ popl %edx; \
+ popl %ecx; \
+ popl %eax;
+#else
+# define LOCKDEP_SYS_EXIT
+#endif
+
#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/irqflags_64.h 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/irqflags_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -116,6 +116,22 @@ static inline int raw_irqs_disabled_flag
})
/*
+ * makes the traced hardirq state match with the machine state
+ *
+ * should be a rarely used function, only in places where its
+ * otherwise impossible to know the irq state, like in traps.
+ */
+static inline void trace_hardirqs_fixup_flags(unsigned long flags)
+{
+ if (raw_irqs_disabled_flags(flags))
+ trace_hardirqs_off();
+ else
+ trace_hardirqs_on();
+}
+
+#define trace_hardirqs_fixup() \
+ trace_hardirqs_fixup_flags(__raw_local_save_flags())
+/*
* Used in the idle loop; sti takes one instruction cycle
* to complete:
*/
@@ -143,6 +159,20 @@ static inline void halt(void)
# define TRACE_IRQS_ON
# define TRACE_IRQS_OFF
# endif
+# ifdef CONFIG_DEBUG_LOCK_ALLOC
+# define LOCKDEP_SYS_EXIT call lockdep_sys_exit_thunk
+# define LOCKDEP_SYS_EXIT_IRQ \
+ TRACE_IRQS_ON; \
+ sti; \
+ SAVE_REST; \
+ LOCKDEP_SYS_EXIT; \
+ RESTORE_REST; \
+ cli; \
+ TRACE_IRQS_OFF;
+# else
+# define LOCKDEP_SYS_EXIT
+# define LOCKDEP_SYS_EXIT_IRQ
+# endif
#endif
#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/maddr.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "maddr_32.h"
+#else
+# include "maddr_64.h"
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/mmu_context.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "mmu_context_32.h"
+#else
+# include "mmu_context_64.h"
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/pci.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,100 @@
+#ifndef __x86_PCI_H
+#define __x86_PCI_H
+
+#include <linux/mm.h> /* for struct page */
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <asm/scatterlist.h>
+#include <asm/io.h>
+
+
+#ifdef __KERNEL__
+
+struct pci_sysdata {
+ int domain; /* PCI domain */
+ int node; /* NUMA node */
+#ifdef CONFIG_X86_64
+ void* iommu; /* IOMMU private data */
+#endif
+#ifdef CONFIG_XEN_PCIDEV_FRONTEND
+ struct pcifront_device *pdev;
+#endif
+};
+
+/* scan a bus after allocating a pci_sysdata for it */
+extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
+
+static inline int pci_domain_nr(struct pci_bus *bus)
+{
+ struct pci_sysdata *sd = bus->sysdata;
+ return sd->domain;
+}
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+ return pci_domain_nr(bus);
+}
+
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+ already-configured bus numbers - to be used for buggy BIOSes
+ or architectures with incomplete PCI setup by the loader */
+
+#ifdef CONFIG_PCI
+extern unsigned int pcibios_assign_all_busses(void);
+#else
+#define pcibios_assign_all_busses() 0
+#endif
+
+#include <asm/hypervisor.h>
+#define pcibios_scan_all_fns(a, b) (!is_initial_xendomain())
+
+extern unsigned long pci_mem_start;
+#define PCIBIOS_MIN_IO 0x1000
+#define PCIBIOS_MIN_MEM (pci_mem_start)
+
+#define PCIBIOS_MIN_CARDBUS_IO 0x4000
+
+void pcibios_config_init(void);
+struct pci_bus * pcibios_scan_root(int bus);
+
+void pcibios_set_master(struct pci_dev *dev);
+void pcibios_penalize_isa_irq(int irq, int active);
+struct irq_routing_table *pcibios_get_irq_routing_table(void);
+int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
+
+
+#define HAVE_PCI_MMAP
+extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
+ enum pci_mmap_state mmap_state, int write_combine);
+
+
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
+
+#endif /* __KERNEL__ */
+
+#ifdef CONFIG_X86_32
+# include "pci_32.h"
+#else
+# include "pci_64.h"
+#endif
+
+/* implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+/* generic pci stuff */
+#include <asm-generic/pci.h>
+
+
+
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/pgalloc.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "pgalloc_32.h"
+#else
+# include "pgalloc_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/pgalloc_64.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/pgalloc_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -112,6 +112,8 @@ static inline void pgd_list_del(pgd_t *p
spin_unlock(&pgd_lock);
}
+extern void pgd_test_and_unpin(pgd_t *);
+
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
/*
@@ -122,6 +124,7 @@ static inline pgd_t *pgd_alloc(struct mm
if (!pgd)
return NULL;
pgd_list_add(pgd);
+ pgd_test_and_unpin(pgd);
/*
* Copy kernel pointers in from init.
* Could keep a freelist or slab cache of those because the kernel
@@ -144,27 +147,7 @@ static inline pgd_t *pgd_alloc(struct mm
static inline void pgd_free(pgd_t *pgd)
{
- pte_t *ptep = virt_to_ptep(pgd);
-
- if (!pte_write(*ptep)) {
- xen_pgd_unpin(__pa(pgd));
- BUG_ON(HYPERVISOR_update_va_mapping(
- (unsigned long)pgd,
- pfn_pte(virt_to_phys(pgd)>>PAGE_SHIFT, PAGE_KERNEL),
- 0));
- }
-
- ptep = virt_to_ptep(__user_pgd(pgd));
-
- if (!pte_write(*ptep)) {
- xen_pgd_unpin(__pa(__user_pgd(pgd)));
- BUG_ON(HYPERVISOR_update_va_mapping(
- (unsigned long)__user_pgd(pgd),
- pfn_pte(virt_to_phys(__user_pgd(pgd))>>PAGE_SHIFT,
- PAGE_KERNEL),
- 0));
- }
-
+ pgd_test_and_unpin(pgd);
pgd_list_del(pgd);
free_pages((unsigned long)pgd, 1);
}
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/pgtable.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "pgtable_32.h"
+#else
+# include "pgtable_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/pgtable_32.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/pgtable_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -17,10 +17,7 @@
#include <asm/fixmap.h>
#include <linux/threads.h>
-#ifndef _I386_BITOPS_H
-#include <asm/bitops.h>
-#endif
-
+#include <linux/bitops.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/spinlock.h>
@@ -40,7 +37,7 @@ extern spinlock_t pgd_lock;
extern struct page *pgd_list;
void check_pgt_cache(void);
-void pmd_ctor(void *, struct kmem_cache *, unsigned long);
+void pmd_ctor(struct kmem_cache *, void *);
void pgtable_cache_init(void);
void paging_init(void);
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/pgtable_64.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/pgtable_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -9,7 +9,7 @@
* the x86-64 page table tree.
*/
#include <asm/processor.h>
-#include <asm/bitops.h>
+#include <linux/bitops.h>
#include <linux/threads.h>
#include <linux/sched.h>
#include <asm/pda.h>
@@ -139,6 +139,7 @@ static inline void pgd_clear (pgd_t * pg
#define MAXMEM _AC(0x6fffffffff, UL)
#define VMALLOC_START _AC(0xffffc20000000000, UL)
#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
+#define VMEMMAP_START _AC(0xffffe20000000000, UL)
#define MODULES_VADDR _AC(0xffffffff88000000, UL)
#define MODULES_END _AC(0xffffffffff000000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/processor.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "processor_32.h"
+#else
+# include "processor_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/processor_32.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/processor_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -80,6 +80,7 @@ struct cpuinfo_x86 {
unsigned char booted_cores; /* number of cores as seen by OS */
__u8 phys_proc_id; /* Physical processor id. */
__u8 cpu_core_id; /* Core id */
+ __u8 cpu_index; /* index into per_cpu list */
#endif
} __attribute__((__aligned__(SMP_CACHE_BYTES)));
@@ -106,14 +107,19 @@ DECLARE_PER_CPU(struct tss_struct, init_
#endif
#ifdef CONFIG_SMP
-extern struct cpuinfo_x86 cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
+#define cpu_data(cpu) per_cpu(cpu_info, cpu)
+#define current_cpu_data cpu_data(smp_processor_id())
#else
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
+#define cpu_data(cpu) boot_cpu_data
+#define current_cpu_data boot_cpu_data
#endif
-extern int cpu_llc_id[NR_CPUS];
+/*
+ * the following now lives in the per cpu area:
+ * extern int cpu_llc_id[NR_CPUS];
+ */
+DECLARE_PER_CPU(u8, cpu_llc_id);
extern char ignore_fpu_irq;
void __init cpu_detect(struct cpuinfo_x86 *c);
@@ -560,7 +566,9 @@ static inline void xen_set_iopl_mask(uns
* clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx
* resulting in stale register contents being returned.
*/
-static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx)
+static inline void cpuid(unsigned int op,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
{
*eax = op;
*ecx = 0;
@@ -568,8 +576,9 @@ static inline void cpuid(unsigned int op
}
/* Some CPUID calls want 'count' to be placed in ecx */
-static inline void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx,
- int *edx)
+static inline void cpuid_count(unsigned int op, int count,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
{
*eax = op;
*ecx = count;
@@ -639,6 +648,17 @@ static inline unsigned int cpuid_edx(uns
#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n"
#define K7_NOP8 K7_NOP7 ASM_NOP1
+/* P6 nops */
+/* uses eax dependencies (Intel-recommended choice) */
+#define P6_NOP1 GENERIC_NOP1
+#define P6_NOP2 ".byte 0x66,0x90\n"
+#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
+#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n"
+#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n"
+#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n"
+#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n"
+#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n"
+
#ifdef CONFIG_MK8
#define ASM_NOP1 K8_NOP1
#define ASM_NOP2 K8_NOP2
@@ -657,6 +677,17 @@ static inline unsigned int cpuid_edx(uns
#define ASM_NOP6 K7_NOP6
#define ASM_NOP7 K7_NOP7
#define ASM_NOP8 K7_NOP8
+#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \
+ defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \
+ defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4)
+#define ASM_NOP1 P6_NOP1
+#define ASM_NOP2 P6_NOP2
+#define ASM_NOP3 P6_NOP3
+#define ASM_NOP4 P6_NOP4
+#define ASM_NOP5 P6_NOP5
+#define ASM_NOP6 P6_NOP6
+#define ASM_NOP7 P6_NOP7
+#define ASM_NOP8 P6_NOP8
#else
#define ASM_NOP1 GENERIC_NOP1
#define ASM_NOP2 GENERIC_NOP2
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/processor_64.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/processor_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -74,6 +74,7 @@ struct cpuinfo_x86 {
__u8 booted_cores; /* number of cores as seen by OS */
__u8 phys_proc_id; /* Physical Processor id. */
__u8 cpu_core_id; /* Core id. */
+ __u8 cpu_index; /* index into per_cpu list */
#endif
} ____cacheline_aligned;
@@ -88,11 +89,12 @@ struct cpuinfo_x86 {
#define X86_VENDOR_UNKNOWN 0xff
#ifdef CONFIG_SMP
-extern struct cpuinfo_x86 cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
+#define cpu_data(cpu) per_cpu(cpu_info, cpu)
+#define current_cpu_data cpu_data(smp_processor_id())
#else
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
+#define cpu_data(cpu) boot_cpu_data
+#define current_cpu_data boot_cpu_data
#endif
extern char ignore_irq13;
@@ -343,6 +345,16 @@ struct extended_sigtable {
};
+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2)
+#define ASM_NOP1 P6_NOP1
+#define ASM_NOP2 P6_NOP2
+#define ASM_NOP3 P6_NOP3
+#define ASM_NOP4 P6_NOP4
+#define ASM_NOP5 P6_NOP5
+#define ASM_NOP6 P6_NOP6
+#define ASM_NOP7 P6_NOP7
+#define ASM_NOP8 P6_NOP8
+#else
#define ASM_NOP1 K8_NOP1
#define ASM_NOP2 K8_NOP2
#define ASM_NOP3 K8_NOP3
@@ -351,6 +363,7 @@ struct extended_sigtable {
#define ASM_NOP6 K8_NOP6
#define ASM_NOP7 K8_NOP7
#define ASM_NOP8 K8_NOP8
+#endif
/* Opteron nops */
#define K8_NOP1 ".byte 0x90\n"
@@ -362,6 +375,17 @@ struct extended_sigtable {
#define K8_NOP7 K8_NOP4 K8_NOP3
#define K8_NOP8 K8_NOP4 K8_NOP4
+/* P6 nops */
+/* uses eax dependencies (Intel-recommended choice) */
+#define P6_NOP1 ".byte 0x90\n"
+#define P6_NOP2 ".byte 0x66,0x90\n"
+#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
+#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n"
+#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n"
+#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n"
+#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n"
+#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n"
+
#define ASM_NOP_MAX 8
/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
@@ -377,12 +401,6 @@ static inline void sync_core(void)
asm volatile("cpuid" : "=a" (tmp) : "0" (1) : "ebx","ecx","edx","memory");
}
-#define ARCH_HAS_PREFETCH
-static inline void prefetch(void *x)
-{
- asm volatile("prefetcht0 (%0)" :: "r" (x));
-}
-
#define ARCH_HAS_PREFETCHW 1
static inline void prefetchw(void *x)
{
@@ -398,11 +416,6 @@ static inline void prefetchw(void *x)
#define cpu_relax() rep_nop()
-static inline void serialize_cpu(void)
-{
- __asm__ __volatile__ ("cpuid" : : : "ax", "bx", "cx", "dx");
-}
-
static inline void __monitor(const void *eax, unsigned long ecx,
unsigned long edx)
{
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/smp.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "smp_32.h"
+#else
+# include "smp_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/smp_32.h 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/smp_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -11,7 +11,7 @@
#endif
#if defined(CONFIG_X86_LOCAL_APIC) && !defined(__ASSEMBLY__)
-#include <asm/bitops.h>
+#include <linux/bitops.h>
#include <asm/mpspec.h>
#include <asm/apic.h>
#ifdef CONFIG_X86_IO_APIC
@@ -30,8 +30,8 @@
extern void smp_alloc_memory(void);
extern int pic_mode;
extern int smp_num_siblings;
-extern cpumask_t cpu_sibling_map[];
-extern cpumask_t cpu_core_map[];
+DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
+DECLARE_PER_CPU(cpumask_t, cpu_core_map);
extern void (*mtrr_hook) (void);
extern void zap_low_mappings (void);
@@ -39,9 +39,11 @@ extern void lock_ipi_call_lock(void);
extern void unlock_ipi_call_lock(void);
#define MAX_APICID 256
-extern u8 x86_cpu_to_apicid[];
+extern u8 __initdata x86_cpu_to_apicid_init[];
+extern void *x86_cpu_to_apicid_ptr;
+DECLARE_PER_CPU(u8, x86_cpu_to_apicid);
-#define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu]
+#define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu)
#ifdef CONFIG_HOTPLUG_CPU
extern void cpu_exit_clear(void);
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/smp_64.h 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/smp_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -40,10 +40,19 @@ extern void lock_ipi_call_lock(void);
extern void unlock_ipi_call_lock(void);
extern int smp_num_siblings;
extern void smp_send_reschedule(int cpu);
+extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
+ void *info, int wait);
-extern cpumask_t cpu_sibling_map[NR_CPUS];
-extern cpumask_t cpu_core_map[NR_CPUS];
-extern u8 cpu_llc_id[NR_CPUS];
+/*
+ * cpu_sibling_map and cpu_core_map now live
+ * in the per cpu area
+ *
+ * extern cpumask_t cpu_sibling_map[NR_CPUS];
+ * extern cpumask_t cpu_core_map[NR_CPUS];
+ */
+DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
+DECLARE_PER_CPU(cpumask_t, cpu_core_map);
+DECLARE_PER_CPU(u8, cpu_llc_id);
#define SMP_TRAMPOLINE_BASE 0x6000
@@ -70,6 +79,8 @@ extern unsigned __cpuinitdata disabled_c
#endif /* CONFIG_SMP */
+#define safe_smp_processor_id() smp_processor_id()
+
#ifdef CONFIG_X86_LOCAL_APIC
static inline int hard_smp_processor_id(void)
{
@@ -82,8 +93,9 @@ static inline int hard_smp_processor_id(
* Some lowlevel functions might want to know about
* the real APIC ID <-> CPU # mapping.
*/
-extern u8 x86_cpu_to_apicid[NR_CPUS]; /* physical ID */
-extern u8 x86_cpu_to_log_apicid[NR_CPUS];
+extern u8 __initdata x86_cpu_to_apicid_init[];
+extern void *x86_cpu_to_apicid_ptr;
+DECLARE_PER_CPU(u8, x86_cpu_to_apicid); /* physical ID */
extern u8 bios_cpu_apicid[];
#ifdef CONFIG_X86_LOCAL_APIC
@@ -118,8 +130,9 @@ static __inline int logical_smp_processo
#endif
#ifdef CONFIG_SMP
-#define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu]
+#define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu)
#else
+extern unsigned int boot_cpu_id;
#define cpu_physical_id(cpu) boot_cpu_id
#endif /* !CONFIG_SMP */
#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/swiotlb.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "swiotlb_32.h"
+#else
+# include_next <asm/swiotlb.h>
+#endif
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/system.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "system_32.h"
+#else
+# include "system_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/system_32.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/system_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -9,6 +9,7 @@
#include <asm/hypervisor.h>
#ifdef __KERNEL__
+#define AT_VECTOR_SIZE_ARCH 2 /* entries in ARCH_DLINFO */
struct task_struct; /* one of the stranger aspects of C forward declarations.. */
extern struct task_struct * FASTCALL(__switch_to(struct task_struct *prev, struct task_struct *next));
@@ -138,7 +139,7 @@ static inline unsigned long xen_read_cr4
{
unsigned long val;
/* This could fault if %cr4 does not exist */
- asm("1: movl %%cr4, %0 \n"
+ asm volatile("1: movl %%cr4, %0 \n"
"2: \n"
".section __ex_table,\"a\" \n"
".long 1b,2b \n"
@@ -157,6 +158,11 @@ static inline void xen_wbinvd(void)
asm volatile("wbinvd": : :"memory");
}
+static inline void clflush(volatile void *__p)
+{
+ asm volatile("clflush %0" : "+m" (*(char __force *)__p));
+}
+
#define read_cr0() (xen_read_cr0())
#define write_cr0(x) (xen_write_cr0(x))
#define read_cr2() (xen_read_cr2())
@@ -207,6 +213,7 @@ static inline unsigned long get_limit(un
#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
+#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
/**
* read_barrier_depends - Flush all pending reads that subsequents reads
@@ -262,18 +269,18 @@ static inline unsigned long get_limit(un
#define read_barrier_depends() do { } while(0)
+#ifdef CONFIG_SMP
+#define smp_mb() mb()
+#ifdef CONFIG_X86_PPRO_FENCE
+# define smp_rmb() rmb()
+#else
+# define smp_rmb() barrier()
+#endif
#ifdef CONFIG_X86_OOSTORE
-/* Actually there are no OOO store capable CPUs for now that do SSE,
- but make it already an possibility. */
-#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
+# define smp_wmb() wmb()
#else
-#define wmb() __asm__ __volatile__ ("": : :"memory")
+# define smp_wmb() barrier()
#endif
-
-#ifdef CONFIG_SMP
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
#define smp_read_barrier_depends() read_barrier_depends()
#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
#else
@@ -300,5 +307,6 @@ extern unsigned long arch_align_stack(un
extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
void default_idle(void);
+void __show_registers(struct pt_regs *, int all);
#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/system_64.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/system_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -11,8 +11,12 @@
#ifdef __KERNEL__
-#define __STR(x) #x
-#define STR(x) __STR(x)
+/* entries in ARCH_DLINFO: */
+#ifdef CONFIG_IA32_EMULATION
+# define AT_VECTOR_SIZE_ARCH 2
+#else
+# define AT_VECTOR_SIZE_ARCH 1
+#endif
#define __SAVE(reg,offset) "movq %%" #reg ",(14-" #offset ")*8(%%rsp)\n\t"
#define __RESTORE(reg,offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t"
@@ -92,7 +96,7 @@ static inline void write_cr0(unsigned lo
#define read_cr3() ({ \
unsigned long __dummy; \
- asm("movq %%cr3,%0" : "=r" (__dummy)); \
+ asm volatile("movq %%cr3,%0" : "=r" (__dummy)); \
machine_to_phys(__dummy); \
})
@@ -105,7 +109,7 @@ static inline void write_cr3(unsigned lo
static inline unsigned long read_cr4(void)
{
unsigned long cr4;
- asm("movq %%cr4,%0" : "=r" (cr4));
+ asm volatile("movq %%cr4,%0" : "=r" (cr4));
return cr4;
}
@@ -131,12 +135,17 @@ static inline void write_cr8(unsigned lo
#endif /* __KERNEL__ */
+static inline void clflush(volatile void *__p)
+{
+ asm volatile("clflush %0" : "+m" (*(char __force *)__p));
+}
+
#define nop() __asm__ __volatile__ ("nop")
#ifdef CONFIG_SMP
#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
#define smp_read_barrier_depends() do {} while(0)
#else
#define smp_mb() barrier()
@@ -153,12 +162,8 @@ static inline void write_cr8(unsigned lo
*/
#define mb() asm volatile("mfence":::"memory")
#define rmb() asm volatile("lfence":::"memory")
-
-#ifdef CONFIG_UNORDERED_IO
#define wmb() asm volatile("sfence" ::: "memory")
-#else
-#define wmb() asm volatile("" ::: "memory")
-#endif
+
#define read_barrier_depends() do {} while(0)
#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/tlbflush.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "tlbflush_32.h"
+#else
+# include "tlbflush_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/tlbflush_32.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/tlbflush_32.h 2010-03-24 15:10:29.000000000 +0100
@@ -23,7 +23,6 @@
* - flush_tlb_page(vma, vmaddr) flushes one page
* - flush_tlb_range(vma, start, end) flushes a range of pages
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
- * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
*
* ..but the i386 has somewhat limited tlb flushing capabilities,
* and page-granular flushes are available only on i486 and up.
@@ -97,10 +96,4 @@ static inline void flush_tlb_kernel_rang
flush_tlb_all();
}
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
- /* i386 does not keep any page table caches in TLB */
-}
-
#endif /* _I386_TLBFLUSH_H */
--- head-2010-05-25.orig/arch/x86/include/mach-xen/asm/tlbflush_64.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/tlbflush_64.h 2010-03-24 15:10:29.000000000 +0100
@@ -28,7 +28,6 @@
* - flush_tlb_page(vma, vmaddr) flushes one page
* - flush_tlb_range(vma, start, end) flushes a range of pages
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
- * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
*
* x86-64 can only flush individual pages or full VMs. For a range flush
* we always do the full VM. Might be worth trying if for a small
@@ -95,12 +94,4 @@ static inline void flush_tlb_kernel_rang
flush_tlb_all();
}
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
- /* x86_64 does not keep any page table caches in a software TLB.
- The CPUs do in their hardware TLBs, but they are handled
- by the normal TLB flushing algorithms. */
-}
-
#endif /* _X8664_TLBFLUSH_H */
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/arch/x86/include/mach-xen/asm/xor.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,5 @@
+#ifdef CONFIG_X86_32
+# include "../../xor_32.h"
+#else
+# include "xor_64.h"
+#endif
--- head-2010-05-25.orig/arch/x86/include/asm/mmu.h 2010-05-25 09:12:09.000000000 +0200
+++ head-2010-05-25/arch/x86/include/asm/mmu.h 2010-03-24 15:10:29.000000000 +0100
@@ -11,6 +11,9 @@
typedef struct {
void *ldt;
int size;
+#ifdef CONFIG_XEN
+ unsigned has_foreign_mappings:1;
+#endif
struct mutex lock;
void *vdso;
} mm_context_t;
--- head-2010-05-25.orig/include/linux/kexec.h 2010-03-24 14:53:41.000000000 +0100
+++ head-2010-05-25/include/linux/kexec.h 2010-03-24 15:10:29.000000000 +0100
@@ -205,8 +205,15 @@ extern struct kimage *kexec_crash_image;
#define VMCOREINFO_BYTES (4096)
#define VMCOREINFO_NOTE_NAME "VMCOREINFO"
#define VMCOREINFO_NOTE_NAME_BYTES ALIGN(sizeof(VMCOREINFO_NOTE_NAME), 4)
+#if !defined(CONFIG_XEN) || !defined(CONFIG_X86)
#define VMCOREINFO_NOTE_SIZE (KEXEC_NOTE_HEAD_BYTES*2 + VMCOREINFO_BYTES \
+ VMCOREINFO_NOTE_NAME_BYTES)
+#else
+#define VMCOREINFO_NOTE_SIZE ALIGN(KEXEC_NOTE_HEAD_BYTES*2 \
+ + VMCOREINFO_BYTES \
+ + VMCOREINFO_NOTE_NAME_BYTES, \
+ PAGE_SIZE)
+#endif
/* Location of a reserved region to hold the crash kernel.
*/
--- head-2010-05-25.orig/include/linux/oprofile.h 2010-03-24 15:02:17.000000000 +0100
+++ head-2010-05-25/include/linux/oprofile.h 2010-03-24 15:10:29.000000000 +0100
@@ -120,6 +120,8 @@ void oprofile_add_ext_sample(unsigned lo
* backtrace. */
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event);
+void oprofile_add_mode(int cpu_mode);
+
/* add a backtrace entry, to be called from the ->backtrace callback */
void oprofile_add_trace(unsigned long eip);
--- head-2010-05-25.orig/include/linux/sysctl.h 2010-05-25 09:12:09.000000000 +0200
+++ head-2010-05-25/include/linux/sysctl.h 2010-03-24 15:10:29.000000000 +0100
@@ -59,6 +59,7 @@ enum
CTL_BUS=8, /* Busses */
CTL_ABI=9, /* Binary emulation */
CTL_CPU=10, /* CPU stuff (speed scaling, etc) */
+ CTL_XEN=123, /* Xen info and control */
CTL_ARLAN=254, /* arlan wireless driver */
CTL_S390DBF=5677, /* s390 debug */
CTL_SUNRPC=7249, /* sunrpc debug */
--- head-2010-05-25.orig/include/xen/pcifront.h 2007-06-18 08:38:13.000000000 +0200
+++ head-2010-05-25/include/xen/pcifront.h 2010-03-24 15:10:29.000000000 +0100
@@ -12,13 +12,11 @@
#ifndef __ia64__
+#include <asm/pci.h>
+
struct pcifront_device;
struct pci_bus;
-
-struct pcifront_sd {
- int domain;
- struct pcifront_device *pdev;
-};
+#define pcifront_sd pci_sysdata
static inline struct pcifront_device *
pcifront_get_pdev(struct pcifront_sd *sd)
@@ -34,18 +32,6 @@ static inline void pcifront_init_sd(stru
sd->pdev = pdev;
}
-#if defined(CONFIG_PCI_DOMAINS)
-static inline int pci_domain_nr(struct pci_bus *bus)
-{
- struct pcifront_sd *sd = bus->sysdata;
- return sd->domain;
-}
-static inline int pci_proc_domain(struct pci_bus *bus)
-{
- return pci_domain_nr(bus);
-}
-#endif /* CONFIG_PCI_DOMAINS */
-
static inline void pcifront_setup_root_resources(struct pci_bus *bus,
struct pcifront_sd *sd)
{
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ head-2010-05-25/include/xen/sysctl.h 2010-03-24 15:10:29.000000000 +0100
@@ -0,0 +1,11 @@
+#ifndef _XEN_SYSCTL_H
+#define _XEN_SYSCTL_H
+
+/* CTL_XEN names: */
+enum
+{
+ CTL_XEN_INDEPENDENT_WALLCLOCK=1,
+ CTL_XEN_PERMITTED_CLOCK_JITTER=2,
+};
+
+#endif /* _XEN_SYSCTL_H */
--- head-2010-05-25.orig/include/xen/xenbus.h 2010-03-24 15:09:23.000000000 +0100
+++ head-2010-05-25/include/xen/xenbus.h 2010-03-24 15:10:29.000000000 +0100
@@ -107,7 +107,7 @@ struct xenbus_driver {
int (*suspend)(struct xenbus_device *dev);
int (*suspend_cancel)(struct xenbus_device *dev);
int (*resume)(struct xenbus_device *dev);
- int (*uevent)(struct xenbus_device *, char **, int, char *, int);
+ int (*uevent)(struct xenbus_device *, struct kobj_uevent_env *);
struct device_driver driver;
int (*read_otherend_details)(struct xenbus_device *dev);
int (*is_ready)(struct xenbus_device *dev);
--- head-2010-05-25.orig/kernel/kexec.c 2010-03-24 15:08:58.000000000 +0100
+++ head-2010-05-25/kernel/kexec.c 2010-05-25 09:22:21.000000000 +0200
@@ -53,7 +53,11 @@ note_buf_t __percpu *crash_notes;
/* vmcoreinfo stuff */
static unsigned char vmcoreinfo_data[VMCOREINFO_BYTES];
-u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
+u32
+#if defined(CONFIG_XEN) && defined(CONFIG_X86)
+__attribute__((__section__(".bss.page_aligned"), __aligned__(PAGE_SIZE)))
+#endif
+vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
size_t vmcoreinfo_size;
size_t vmcoreinfo_max_size = sizeof(vmcoreinfo_data);
@@ -1272,6 +1276,7 @@ static int __init crash_notes_memory_ini
module_init(crash_notes_memory_init)
+#ifndef CONFIG_XEN
/*
* parsing the "crashkernel" commandline
*
@@ -1434,7 +1439,7 @@ int __init parse_crashkernel(char *cm
return 0;
}
-
+#endif
void crash_save_vmcoreinfo(void)
@@ -1491,7 +1496,18 @@ static int __init crash_save_vmcoreinfo_
VMCOREINFO_SYMBOL(init_uts_ns);
VMCOREINFO_SYMBOL(node_online_map);
+#ifndef CONFIG_X86_XEN
VMCOREINFO_SYMBOL(swapper_pg_dir);
+#else
+/*
+ * Since for x86-32 Xen swapper_pg_dir is a pointer rather than an array,
+ * make the value stored consistent with native (i.e. the base address of
+ * the page directory).
+ */
+# define swapper_pg_dir *swapper_pg_dir
+ VMCOREINFO_SYMBOL(swapper_pg_dir);
+# undef swapper_pg_dir
+#endif
VMCOREINFO_SYMBOL(_stext);
VMCOREINFO_SYMBOL(vmlist);
--- head-2010-05-25.orig/kernel/sysctl_binary.c 2010-05-25 09:12:09.000000000 +0200
+++ head-2010-05-25/kernel/sysctl_binary.c 2010-04-15 09:55:30.000000000 +0200
@@ -874,6 +874,14 @@ static const struct bin_table bin_bus_ta
};
+#ifdef CONFIG_XEN
+static struct trans_ctl_table trans_xen_table[] = {
+ { CTL_XEN_INDEPENDENT_WALLCLOCK, "independent_wallclock" },
+ { CTL_XEN_PERMITTED_CLOCK_JITTER, "permitted_clock_jitter" },
+ {}
+};
+#endif
+
static const struct bin_table bin_s390dbf_table[] = {
{ CTL_INT, 5678 /* CTL_S390DBF_STOPPABLE */, "debug_stoppable" },
{ CTL_INT, 5679 /* CTL_S390DBF_ACTIVE */, "debug_active" },
@@ -913,6 +921,9 @@ static const struct bin_table bin_root_t
{ CTL_DIR, CTL_BUS, "bus", bin_bus_table },
{ CTL_DIR, CTL_ABI, "abi" },
/* CTL_CPU not used */
+#ifdef CONFIG_XEN
+ { CTL_XEN, "xen", trans_xen_table },
+#endif
/* CTL_ARLAN "arlan" no longer used */
{ CTL_DIR, CTL_S390DBF, "s390dbf", bin_s390dbf_table },
{ CTL_DIR, CTL_SUNRPC, "sunrpc", bin_sunrpc_table },
--- head-2010-05-25.orig/kernel/sysctl_check.c 2010-05-25 09:12:09.000000000 +0200
+++ head-2010-05-25/kernel/sysctl_check.c 2010-03-24 15:10:29.000000000 +0100
@@ -4,6 +4,7 @@
#include <linux/sunrpc/debug.h>
#include <linux/string.h>
#include <net/ip_vs.h>
+#include <xen/sysctl.h>
static int sysctl_depth(struct ctl_table *table)
--- head-2010-05-25.orig/lib/swiotlb-xen.c 2010-03-24 15:09:15.000000000 +0100
+++ head-2010-05-25/lib/swiotlb-xen.c 2010-03-24 15:10:29.000000000 +0100
@@ -27,7 +27,7 @@
#include <asm/uaccess.h>
#include <xen/gnttab.h>
#include <xen/interface/memory.h>
-#include <asm-i386/mach-xen/asm/gnttab_dma.h>
+#include <asm/gnttab_dma.h>
int swiotlb;
EXPORT_SYMBOL(swiotlb);
@@ -574,9 +574,10 @@ swiotlb_sync_single_for_device(struct de
* same here.
*/
int
-swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nelems,
+swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir)
{
+ struct scatterlist *sg;
struct phys_addr buffer;
dma_addr_t dev_addr;
char *map;
@@ -584,22 +585,22 @@ swiotlb_map_sg(struct device *hwdev, str
BUG_ON(dir == DMA_NONE);
- for (i = 0; i < nelems; i++, sg++) {
- dev_addr = gnttab_dma_map_page(sg->page) + sg->offset;
+ for_each_sg(sgl, sg, nelems, i) {
+ dev_addr = gnttab_dma_map_page(sg_page(sg)) + sg->offset;
- if (range_straddles_page_boundary(page_to_pseudophys(sg->page)
+ if (range_straddles_page_boundary(page_to_pseudophys(sg_page(sg))
+ sg->offset, sg->length)
|| address_needs_mapping(hwdev, dev_addr)) {
gnttab_dma_unmap_page(dev_addr);
- buffer.page = sg->page;
+ buffer.page = sg_page(sg);
buffer.offset = sg->offset;
map = map_single(hwdev, buffer, sg->length, dir);
if (!map) {
/* Don't panic here, we expect map_sg users
to do proper error handling. */
swiotlb_full(hwdev, sg->length, dir, 0);
- swiotlb_unmap_sg(hwdev, sg - i, i, dir);
- sg[0].dma_length = 0;
+ swiotlb_unmap_sg(hwdev, sgl, i, dir);
+ sgl[0].dma_length = 0;
return 0;
}
sg->dma_address = virt_to_bus(map);
@@ -615,19 +616,21 @@ swiotlb_map_sg(struct device *hwdev, str
* concerning calls here are the same as for swiotlb_unmap_single() above.
*/
void
-swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nelems,
+swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir)
{
+ struct scatterlist *sg;
int i;
BUG_ON(dir == DMA_NONE);
- for (i = 0; i < nelems; i++, sg++)
+ for_each_sg(sgl, sg, nelems, i) {
if (in_swiotlb_aperture(sg->dma_address))
unmap_single(hwdev, bus_to_virt(sg->dma_address),
sg->dma_length, dir);
else
gnttab_dma_unmap_page(sg->dma_address);
+ }
}
/*
@@ -638,31 +641,35 @@ swiotlb_unmap_sg(struct device *hwdev, s
* and usage.
*/
void
-swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
+swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sgl,
int nelems, int dir)
{
+ struct scatterlist *sg;
int i;
BUG_ON(dir == DMA_NONE);
- for (i = 0; i < nelems; i++, sg++)
+ for_each_sg(sgl, sg, nelems, i) {
if (in_swiotlb_aperture(sg->dma_address))
sync_single(hwdev, bus_to_virt(sg->dma_address),
sg->dma_length, dir);
+ }
}
void
-swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
+swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sgl,
int nelems, int dir)
{
+ struct scatterlist *sg;
int i;
BUG_ON(dir == DMA_NONE);
- for (i = 0; i < nelems; i++, sg++)
+ for_each_sg(sgl, sg, nelems, i) {
if (in_swiotlb_aperture(sg->dma_address))
sync_single(hwdev, bus_to_virt(sg->dma_address),
sg->dma_length, dir);
+ }
}
#ifdef CONFIG_HIGHMEM
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