This way the same files could be used for building kernel-qubes-vm package and for building VM kernel files manuallydevel-3.19
parent
cb7604e53d
commit
7905b0b2ba
@ -1,9 +0,0 @@
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.tmp_versions/
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*.ko.cmd
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*.o.cmd
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*.o
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Makefile.xen
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Module.symvers
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modules.order
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u2mfn.ko
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u2mfn.mod.c
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@ -1,28 +0,0 @@
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.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
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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obj-m += u2mfn.o
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clean:
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rm -f *.o *.ko *~
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rm -f .u2mfn.* *.mod.c Module.symvers modules.order
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rm -fr .tmp_versions
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rm -f Makefile.xen
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@ -1,25 +0,0 @@
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#!/bin/sh
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.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
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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make -C /lib/modules/`uname -r`/build/ SUBDIRS=`pwd` modules \
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EXTRA_CFLAGS=-I`pwd`/../xenincl
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#!/bin/sh
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make -C /lib/modules/`uname -r`/build/ SUBDIRS=`pwd` clean
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@ -1,167 +0,0 @@
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/*
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* The Qubes OS Project, http://www.qubes-os.org
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*
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* Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include <linux/module.h>
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#include <linux/version.h>
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#include <linux/proc_fs.h>
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#include <linux/fs.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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#ifndef FOREIGN_FRAME_BIT
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#include <xen/page.h>
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#endif
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#include <linux/highmem.h>
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#include "/usr/include/u2mfn-kernel.h"
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
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static inline unsigned long virt_to_phys(volatile void *address)
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{
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return __pa((unsigned long) address);
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}
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#endif
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#ifdef virt_to_mfn
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#define VIRT_TO_MFN virt_to_mfn
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#else
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extern unsigned long *phys_to_machine_mapping;
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static inline unsigned long VIRT_TO_MFN(void *addr)
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{
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unsigned int pfn = virt_to_phys(addr) >> PAGE_SHIFT;
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return phys_to_machine_mapping[pfn] & ~FOREIGN_FRAME_BIT;
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}
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#endif
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/// User virtual address to mfn translator
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/**
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\param cmd ignored
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\param data the user-specified address
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\return mfn corresponding to "data" argument, or -1 on error
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*/
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static long u2mfn_ioctl(struct file *f, unsigned int cmd,
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unsigned long data)
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{
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struct page *user_page;
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void *kaddr;
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int ret;
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if (_IOC_TYPE(cmd) != U2MFN_MAGIC) {
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printk("Qubes u2mfn: wrong IOCTL magic");
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return -ENOTTY;
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}
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switch (cmd) {
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case U2MFN_GET_MFN_FOR_PAGE:
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down_read(¤t->mm->mmap_sem);
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ret = get_user_pages
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(current, current->mm, data, 1, 1, 0, &user_page, 0);
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up_read(¤t->mm->mmap_sem);
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if (ret != 1) {
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printk("U2MFN_GET_MFN_FOR_PAGE: get_user_pages failed, ret=0x%x\n", ret);
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return -1;
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}
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kaddr = kmap(user_page);
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ret = VIRT_TO_MFN(kaddr);
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kunmap(user_page);
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put_page(user_page);
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break;
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case U2MFN_GET_LAST_MFN:
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if (f->private_data)
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ret = VIRT_TO_MFN(f->private_data);
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else
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ret = 0;
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break;
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default:
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printk("Qubes u2mfn: wrong ioctl passed!\n");
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return -ENOTTY;
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}
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return ret;
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}
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static int u2mfn_mmap(struct file *f, struct vm_area_struct *vma)
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{
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int ret;
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char *kbuf;
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long length = vma->vm_end - vma->vm_start;
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printk("u2mfn_mmap: entering, private=%p\n", f->private_data);
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if (f->private_data)
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return -EBUSY;
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if (length != PAGE_SIZE)
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return -EINVAL;
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kbuf = (char *) __get_free_page(GFP_KERNEL);
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if (!kbuf)
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return -ENOMEM;
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f->private_data = kbuf;
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ret = remap_pfn_range(vma, vma->vm_start,
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virt_to_phys(kbuf) >> PAGE_SHIFT,
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length, vma->vm_page_prot);
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printk("u2mfn_mmap: calling remap return %d\n", ret);
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if (ret)
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return ret;
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return 0;
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}
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static int u2mfn_release(struct inode *i, struct file *f)
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{
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printk("u2mfn_release, priv=%p\n", f->private_data);
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if (f->private_data)
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__free_page(f->private_data);
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f->private_data = NULL;
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return 0;
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}
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static struct file_operations u2mfn_fops = {
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.unlocked_ioctl = u2mfn_ioctl,
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.mmap = u2mfn_mmap,
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.release = u2mfn_release
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};
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/// u2mfn module registration
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/**
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tries to register "/proc/u2mfn" pseudofile
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*/
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static int u2mfn_init(void)
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{
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struct proc_dir_entry *u2mfn_node =
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proc_create_data("u2mfn", 0666, NULL,
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&u2mfn_fops, 0);
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if (!u2mfn_node)
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return -1;
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return 0;
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}
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static void u2mfn_exit(void)
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{
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remove_proc_entry("u2mfn", 0);
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}
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module_init(u2mfn_init);
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module_exit(u2mfn_exit);
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MODULE_LICENSE("GPL");
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#
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# This file should be places in pre-pivot directory in dracut's initramfs
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#
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#!/bin/sh
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echo "Waiting for /dev/xvdd device..."
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while ! [ -e /dev/xvdd ]; do sleep 0.1; done
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mount -n -t ext3 /dev/xvdd $NEWROOT/lib/modules
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#
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# This file should be places in pre-mount directory in dracut's initramfs
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#
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#!/bin/sh
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echo "Qubes initramfs script here:"
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if [ -e /dev/mapper/dmroot ] ; then
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die "Qubes: FATAL error: /dev/mapper/dmroot already exists?!"
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fi
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modprobe xenblk || modprobe xen-blkfront || echo "Qubes: Cannot load Xen Block Frontend..."
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echo "Waiting for /dev/xvda* devices..."
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while ! [ -e /dev/xvda ]; do sleep 0.1; done
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if [ `cat /sys/block/xvda/ro` = 1 ] ; then
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echo "Qubes: Doing COW setup for AppVM..."
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while ! [ -e /dev/xvdc ]; do sleep 0.1; done
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while ! [ -e /dev/xvdc2 ]; do sleep 0.1; done
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echo "0 `cat /sys/block/xvda/size` snapshot /dev/xvda /dev/xvdc2 N 16" | \
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dmsetup create dmroot || { echo "Qubes: FATAL: cannot create dmroot!"; }
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echo Qubes: done.
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else
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echo "Qubes: Doing R/W setup for TemplateVM..."
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echo "0 `cat /sys/block/xvda/size` linear /dev/xvda 0" | \
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dmsetup create dmroot || { echo "Qubes: FATAL: cannot create dmroot!"; exit 1; }
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echo Qubes: done.
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fi
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@ -1 +0,0 @@
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../lib/dracut/hooks/pre-pivot/50_mount_modules.sh
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@ -1 +0,0 @@
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../lib/dracut/hooks/pre-udev/90_qubes_cow_setup.sh
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Reference in new issue