pvops: ACPI S3 patches for 3.4 kernel
This commit is contained in:
Marek Marczykowski
parent
3c69343cca
commit
2b14e535ad
@ -0,0 +1,112 @@
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From b2ed886e43ec90bae86d6cae6582b457e76d1fd8 Mon Sep 17 00:00:00 2001
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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Date: Thu, 8 Dec 2011 17:16:43 +0800
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Subject: x86/acpi/sleep: Provide registration for acpi_suspend_lowlevel.
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Which by default will be x86_acpi_suspend_lowlevel.
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This registration allows us to register another callback
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if there is a need to use another platform specific callback.
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CC: Thomas Gleixner <tglx@linutronix.de>
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CC: "H. Peter Anvin" <hpa@zytor.com>
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CC: x86@kernel.org
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CC: Len Brown <len.brown@intel.com>
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CC: Joseph Cihula <joseph.cihula@intel.com>
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CC: Shane Wang <shane.wang@intel.com>
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CC: linux-pm@lists.linux-foundation.org
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CC: linux-acpi@vger.kernel.org
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CC: Len Brown <len.brown@intel.com>
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Signed-off-by: Liang Tang <liang.tang@oracle.com>
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[v1: Fix when CONFIG_ACPI_SLEEP is not set]
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Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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---
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arch/x86/include/asm/acpi.h | 2 +-
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arch/x86/kernel/acpi/boot.c | 7 +++++++
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arch/x86/kernel/acpi/sleep.c | 4 ++--
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arch/x86/kernel/acpi/sleep.h | 2 ++
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drivers/acpi/sleep.c | 2 ++
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5 files changed, 14 insertions(+), 3 deletions(-)
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diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
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index 610001d..68cf060 100644
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--- a/arch/x86/include/asm/acpi.h
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+++ b/arch/x86/include/asm/acpi.h
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@@ -115,7 +115,7 @@ static inline void acpi_disable_pci(void)
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}
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/* Low-level suspend routine. */
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-extern int acpi_suspend_lowlevel(void);
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+extern int (*acpi_suspend_lowlevel)(void);
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extern const unsigned char acpi_wakeup_code[];
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#define acpi_wakeup_address (__pa(TRAMPOLINE_SYM(acpi_wakeup_code)))
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diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
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index ce664f3..c3a5b95 100644
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--- a/arch/x86/kernel/acpi/boot.c
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+++ b/arch/x86/kernel/acpi/boot.c
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@@ -44,6 +44,7 @@
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#include <asm/mpspec.h>
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#include <asm/smp.h>
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+#include "sleep.h" /* To include x86_acpi_suspend_lowlevel */
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static int __initdata acpi_force = 0;
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u32 acpi_rsdt_forced;
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int acpi_disabled;
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@@ -558,6 +559,12 @@ static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi,
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int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
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int trigger, int polarity) = acpi_register_gsi_pic;
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+#ifdef CONFIG_ACPI_SLEEP
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+int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel;
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+#else
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+int (*acpi_suspend_lowlevel)(void);
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+#endif
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+
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/*
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* success: return IRQ number (>=0)
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* failure: return < 0
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diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
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index 103b6ab..4d2d0b1 100644
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--- a/arch/x86/kernel/acpi/sleep.c
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+++ b/arch/x86/kernel/acpi/sleep.c
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@@ -25,12 +25,12 @@ static char temp_stack[4096];
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acpi_enter_sleep_state(3, wake_sleep_flags);
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}
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/**
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- * acpi_suspend_lowlevel - save kernel state
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+ * x86_acpi_suspend_lowlevel - save kernel state
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*
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* Create an identity mapped page table and copy the wakeup routine to
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* low memory.
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*/
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-int acpi_suspend_lowlevel(void)
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+int x86_acpi_suspend_lowlevel(void)
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{
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struct wakeup_header *header;
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/* address in low memory of the wakeup routine. */
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diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
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index 416d4be..4d3feb5 100644
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--- a/arch/x86/kernel/acpi/sleep.h
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+++ b/arch/x86/kernel/acpi/sleep.h
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@@ -13,3 +13,5 @@ extern unsigned long acpi_copy_wakeup_routine(unsigned long);
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extern void wakeup_long64(void);
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extern void do_suspend_lowlevel(void);
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+
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+extern int x86_acpi_suspend_lowlevel(void);
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diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
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index 0a7ed69..44dbdde 100644
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--- a/drivers/acpi/sleep.c
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+++ b/drivers/acpi/sleep.c
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@@ -254,6 +254,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
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break;
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case ACPI_STATE_S3:
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+ if (!acpi_suspend_lowlevel)
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+ return -ENOSYS;
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error = acpi_suspend_lowlevel();
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if (error)
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return error;
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--
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1.7.6.4
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@ -0,0 +1,197 @@
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From 9b10575276a220543b8791f2cb8268fbd4a0bc2e Mon Sep 17 00:00:00 2001
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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Date: Thu, 8 Dec 2011 17:32:23 +0800
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Subject: xen/acpi/sleep: Enable ACPI sleep via the __acpi_os_prepare_sleep
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Provide the registration callback to call in the Xen's
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ACPI sleep functionality. This means that during S3/S5
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we make a hypercall XENPF_enter_acpi_sleep with the
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proper PM1A/PM1B registers.
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Based of Ke Yu's <ke.yu@intel.com> initial idea.
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[ From http://xenbits.xensource.com/linux-2.6.18-xen.hg
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change c68699484a65 ]
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[v1: Added Copyright and license]
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[v2: Added check if PM1A/B the 16-bits MSB contain something. The spec
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only uses 16-bits but might have more in future]
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Signed-off-by: Liang Tang <liang.tang@oracle.com>
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Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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---
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arch/x86/xen/enlighten.c | 3 ++
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drivers/xen/Makefile | 2 +-
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drivers/xen/acpi.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++
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include/xen/acpi.h | 58 +++++++++++++++++++++++++++++++++++++++++++
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4 files changed, 124 insertions(+), 1 deletions(-)
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create mode 100644 drivers/xen/acpi.c
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create mode 100644 include/xen/acpi.h
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diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
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index 12eb07b..a5277c2 100644
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--- a/arch/x86/xen/enlighten.c
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+++ b/arch/x86/xen/enlighten.c
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@@ -42,6 +42,7 @@
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#include <xen/page.h>
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#include <xen/hvm.h>
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#include <xen/hvc-console.h>
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+#include <xen/acpi.h>
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#include <asm/paravirt.h>
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#include <asm/apic.h>
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@@ -1275,6 +1276,8 @@ asmlinkage void __init xen_start_kernel(void)
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/* Make sure ACS will be enabled */
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pci_request_acs();
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+
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+ xen_acpi_sleep_register();
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}
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#ifdef CONFIG_PCI
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/* PCI BIOS service won't work from a PV guest. */
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diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
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index aa31337..77a845f 100644
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--- a/drivers/xen/Makefile
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+++ b/drivers/xen/Makefile
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@@ -17,7 +17,7 @@ obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o
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obj-$(CONFIG_XEN_PVHVM) += platform-pci.o
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obj-$(CONFIG_XEN_TMEM) += tmem.o
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obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o
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-obj-$(CONFIG_XEN_DOM0) += pci.o
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+obj-$(CONFIG_XEN_DOM0) += pci.o acpi.o
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obj-$(CONFIG_XEN_PCIDEV_BACKEND) += xen-pciback/
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obj-$(CONFIG_XEN_PRIVCMD) += xen-privcmd.o
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obj-$(CONFIG_XEN_ACPI_PROCESSOR) += xen-acpi-processor.o
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diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c
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new file mode 100644
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index 0000000..119d42a
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--- /dev/null
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+++ b/drivers/xen/acpi.c
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@@ -0,0 +1,62 @@
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+/******************************************************************************
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+ * acpi.c
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+ * acpi file for domain 0 kernel
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+ *
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+ * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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+ * Copyright (c) 2011 Yu Ke ke.yu@intel.com
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License version 2
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+ * as published by the Free Software Foundation; or, when distributed
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+ * separately from the Linux kernel or incorporated into other
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+ * software packages, subject to the following license:
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this source file (the "Software"), to deal in the Software without
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+ * restriction, including without limitation the rights to use, copy, modify,
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+ * merge, publish, distribute, sublicense, and/or sell copies of the Software,
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+ * and to permit persons to whom the Software is furnished to do so, subject to
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+ * the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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+ * IN THE SOFTWARE.
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+ */
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+
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+#include <xen/acpi.h>
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+#include <xen/interface/platform.h>
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+#include <asm/xen/hypercall.h>
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+#include <asm/xen/hypervisor.h>
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+
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+int xen_acpi_notify_hypervisor_state(u8 sleep_state,
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+ u32 pm1a_cnt, u32 pm1b_cnt)
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+{
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+ struct xen_platform_op op = {
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+ .cmd = XENPF_enter_acpi_sleep,
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+ .interface_version = XENPF_INTERFACE_VERSION,
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+ .u = {
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+ .enter_acpi_sleep = {
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+ .pm1a_cnt_val = (u16)pm1a_cnt,
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+ .pm1b_cnt_val = (u16)pm1b_cnt,
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+ .sleep_state = sleep_state,
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+ },
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+ },
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+ };
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+
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+ if ((pm1a_cnt & 0xffff0000) || (pm1b_cnt & 0xffff0000)) {
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+ WARN(1, "Using more than 16bits of PM1A/B 0x%x/0x%x!"
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+ "Email xen-devel@lists.xensource.com Thank you.\n", \
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+ pm1a_cnt, pm1b_cnt);
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+ return -1;
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+ }
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+
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+ HYPERVISOR_dom0_op(&op);
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+ return 1;
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+}
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diff --git a/include/xen/acpi.h b/include/xen/acpi.h
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new file mode 100644
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index 0000000..48a9c01
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--- /dev/null
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+++ b/include/xen/acpi.h
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@@ -0,0 +1,58 @@
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+/******************************************************************************
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+ * acpi.h
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+ * acpi file for domain 0 kernel
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+ *
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+ * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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+ * Copyright (c) 2011 Yu Ke <ke.yu@intel.com>
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License version 2
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+ * as published by the Free Software Foundation; or, when distributed
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+ * separately from the Linux kernel or incorporated into other
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+ * software packages, subject to the following license:
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this source file (the "Software"), to deal in the Software without
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+ * restriction, including without limitation the rights to use, copy, modify,
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+ * merge, publish, distribute, sublicense, and/or sell copies of the Software,
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+ * and to permit persons to whom the Software is furnished to do so, subject to
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+ * the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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+ * IN THE SOFTWARE.
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+ */
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+
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+#ifndef _XEN_ACPI_H
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+#define _XEN_ACPI_H
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+
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+#include <linux/types.h>
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+
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+#ifdef CONFIG_XEN_DOM0
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+#include <asm/xen/hypervisor.h>
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+#include <xen/xen.h>
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+#include <linux/acpi.h>
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+
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+int xen_acpi_notify_hypervisor_state(u8 sleep_state,
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+ u32 pm1a_cnt, u32 pm1b_cnd);
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+
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+static inline void xen_acpi_sleep_register(void)
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+{
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+ if (xen_initial_domain())
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+ acpi_os_set_prepare_sleep(
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+ &xen_acpi_notify_hypervisor_state);
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+}
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+#else
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+static inline void xen_acpi_sleep_register(void)
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+{
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+}
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+#endif
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+
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+#endif /* _XEN_ACPI_H */
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--
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1.7.6.4
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@ -0,0 +1,53 @@
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From 5000cd48f33e3e4d31cdeda0751188794f8bebf4 Mon Sep 17 00:00:00 2001
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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Date: Thu, 8 Dec 2011 17:34:58 +0800
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Subject: xen/acpi/sleep: Register to the acpi_suspend_lowlevel a callback.
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|
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We piggyback on "x86/acpi: Provide registration for acpi_suspend_lowlevel."
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to register a Xen version of the callback. The callback does not
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do anything special - except it omits the x86_acpi_suspend_lowlevel.
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It does that b/c during suspend it tries to save cr8 values (which
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the hypervisor does not support), and then on resume path the
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cr3, cr8, idt, and gdt are all resumed which clashes with what
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the hypervisor has set up for the guest.
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|
||||||
|
Signed-off-by: Liang Tang <liang.tang@oracle.com>
|
||||||
|
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||||
|
---
|
||||||
|
include/xen/acpi.h | 16 +++++++++++++++-
|
||||||
|
1 files changed, 15 insertions(+), 1 deletions(-)
|
||||||
|
|
||||||
|
diff --git a/include/xen/acpi.h b/include/xen/acpi.h
|
||||||
|
index 48a9c01..ebaabbb 100644
|
||||||
|
--- a/include/xen/acpi.h
|
||||||
|
+++ b/include/xen/acpi.h
|
||||||
|
@@ -43,11 +43,25 @@
|
||||||
|
int xen_acpi_notify_hypervisor_state(u8 sleep_state,
|
||||||
|
u32 pm1a_cnt, u32 pm1b_cnd);
|
||||||
|
|
||||||
|
+static inline int xen_acpi_suspend_lowlevel(void)
|
||||||
|
+{
|
||||||
|
+ /*
|
||||||
|
+ * Xen will save and restore CPU context, so
|
||||||
|
+ * we can skip that and just go straight to
|
||||||
|
+ * the suspend.
|
||||||
|
+ */
|
||||||
|
+ acpi_enter_sleep_state(ACPI_STATE_S3, 0);
|
||||||
|
+ return 0;
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
static inline void xen_acpi_sleep_register(void)
|
||||||
|
{
|
||||||
|
- if (xen_initial_domain())
|
||||||
|
+ if (xen_initial_domain()) {
|
||||||
|
acpi_os_set_prepare_sleep(
|
||||||
|
&xen_acpi_notify_hypervisor_state);
|
||||||
|
+
|
||||||
|
+ acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
|
||||||
|
+ }
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
static inline void xen_acpi_sleep_register(void)
|
||||||
|
--
|
||||||
|
1.7.6.4
|
||||||
|
|
||||||
@ -1,3 +1,6 @@
|
|||||||
|
patches.xen/pvops-3.4-0001-x86-acpi-sleep-Provide-registration-for-acpi_suspend.patch
|
||||||
|
patches.xen/pvops-3.4-0002-xen-acpi-sleep-Enable-ACPI-sleep-via-the-__acpi_os_p.patch
|
||||||
|
patches.xen/pvops-3.4-0003-xen-acpi-sleep-Register-to-the-acpi_suspend_lowlevel.patch
|
||||||
patches.xen/pvops-3.4-enable-netfront-in-dom0.patch
|
patches.xen/pvops-3.4-enable-netfront-in-dom0.patch
|
||||||
patches.xen/pvops-netback-calculate-correctly-the-SKB-slots.patch
|
patches.xen/pvops-netback-calculate-correctly-the-SKB-slots.patch
|
||||||
patches.xen/pvops-3.4-0100-usb-xen-pvusb-driver.patch
|
patches.xen/pvops-3.4-0100-usb-xen-pvusb-driver.patch
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user