diff options
Diffstat (limited to 'linux-2.6-xen-sparse/arch/i386/kernel/machine_kexec.c')
| -rw-r--r-- | linux-2.6-xen-sparse/arch/i386/kernel/machine_kexec.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/linux-2.6-xen-sparse/arch/i386/kernel/machine_kexec.c b/linux-2.6-xen-sparse/arch/i386/kernel/machine_kexec.c deleted file mode 100644 index d3979a6531..0000000000 --- a/linux-2.6-xen-sparse/arch/i386/kernel/machine_kexec.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * machine_kexec.c - handle transition of Linux booting another kernel - * Copyright (C) 2002-2005 Eric Biederman <ebiederm@xmission.com> - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. - */ - -#include <linux/mm.h> -#include <linux/kexec.h> -#include <linux/delay.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> -#include <asm/tlbflush.h> -#include <asm/mmu_context.h> -#include <asm/io.h> -#include <asm/apic.h> -#include <asm/cpufeature.h> -#include <asm/desc.h> -#include <asm/system.h> - -#ifdef CONFIG_XEN -#include <xen/interface/kexec.h> -#endif - -#define PAGE_ALIGNED __attribute__ ((__aligned__(PAGE_SIZE))) -static u32 kexec_pgd[1024] PAGE_ALIGNED; -#ifdef CONFIG_X86_PAE -static u32 kexec_pmd0[1024] PAGE_ALIGNED; -static u32 kexec_pmd1[1024] PAGE_ALIGNED; -#endif -static u32 kexec_pte0[1024] PAGE_ALIGNED; -static u32 kexec_pte1[1024] PAGE_ALIGNED; - -#ifdef CONFIG_XEN - -#define __ma(x) (pfn_to_mfn(__pa((x)) >> PAGE_SHIFT) << PAGE_SHIFT) - -#if PAGES_NR > KEXEC_XEN_NO_PAGES -#error PAGES_NR is greater than KEXEC_XEN_NO_PAGES - Xen support will break -#endif - -#if PA_CONTROL_PAGE != 0 -#error PA_CONTROL_PAGE is non zero - Xen support will break -#endif - -void machine_kexec_setup_load_arg(xen_kexec_image_t *xki, struct kimage *image) -{ - void *control_page; - - memset(xki->page_list, 0, sizeof(xki->page_list)); - - control_page = page_address(image->control_code_page); - memcpy(control_page, relocate_kernel, PAGE_SIZE); - - xki->page_list[PA_CONTROL_PAGE] = __ma(control_page); - xki->page_list[PA_PGD] = __ma(kexec_pgd); -#ifdef CONFIG_X86_PAE - xki->page_list[PA_PMD_0] = __ma(kexec_pmd0); - xki->page_list[PA_PMD_1] = __ma(kexec_pmd1); -#endif - xki->page_list[PA_PTE_0] = __ma(kexec_pte0); - xki->page_list[PA_PTE_1] = __ma(kexec_pte1); - -} - -#endif /* CONFIG_XEN */ - -/* - * A architecture hook called to validate the - * proposed image and prepare the control pages - * as needed. The pages for KEXEC_CONTROL_CODE_SIZE - * have been allocated, but the segments have yet - * been copied into the kernel. - * - * Do what every setup is needed on image and the - * reboot code buffer to allow us to avoid allocations - * later. - * - * Currently nothing. - */ -int machine_kexec_prepare(struct kimage *image) -{ - return 0; -} - -/* - * Undo anything leftover by machine_kexec_prepare - * when an image is freed. - */ -void machine_kexec_cleanup(struct kimage *image) -{ -} - -#ifndef CONFIG_XEN -/* - * Do not allocate memory (or fail in any way) in machine_kexec(). - * We are past the point of no return, committed to rebooting now. - */ -NORET_TYPE void machine_kexec(struct kimage *image) -{ - unsigned long page_list[PAGES_NR]; - void *control_page; - - /* Interrupts aren't acceptable while we reboot */ - local_irq_disable(); - - control_page = page_address(image->control_code_page); - memcpy(control_page, relocate_kernel, PAGE_SIZE); - - page_list[PA_CONTROL_PAGE] = __pa(control_page); - page_list[VA_CONTROL_PAGE] = (unsigned long)relocate_kernel; - page_list[PA_PGD] = __pa(kexec_pgd); - page_list[VA_PGD] = (unsigned long)kexec_pgd; -#ifdef CONFIG_X86_PAE - page_list[PA_PMD_0] = __pa(kexec_pmd0); - page_list[VA_PMD_0] = (unsigned long)kexec_pmd0; - page_list[PA_PMD_1] = __pa(kexec_pmd1); - page_list[VA_PMD_1] = (unsigned long)kexec_pmd1; -#endif - page_list[PA_PTE_0] = __pa(kexec_pte0); - page_list[VA_PTE_0] = (unsigned long)kexec_pte0; - page_list[PA_PTE_1] = __pa(kexec_pte1); - page_list[VA_PTE_1] = (unsigned long)kexec_pte1; - - relocate_kernel((unsigned long)image->head, (unsigned long)page_list, - image->start, cpu_has_pae); -} -#endif |