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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-17 21:05:42 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-22 22:55:20 -0700
commitbb8985586b7a906e116db835c64773b7a7d51663 (patch)
treede93ae58e88cc563d95cc124a73f3930594c6100 /include/asm-x86/kexec.h
parent8ede0bdb63305d3353efd97e9af6210afb05734e (diff)
downloadtalos-obmc-linux-bb8985586b7a906e116db835c64773b7a7d51663.tar.gz
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x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/asm-x86/kexec.h')
-rw-r--r--include/asm-x86/kexec.h175
1 files changed, 0 insertions, 175 deletions
diff --git a/include/asm-x86/kexec.h b/include/asm-x86/kexec.h
deleted file mode 100644
index ea09600d6129..000000000000
--- a/include/asm-x86/kexec.h
+++ /dev/null
@@ -1,175 +0,0 @@
-#ifndef ASM_X86__KEXEC_H
-#define ASM_X86__KEXEC_H
-
-#ifdef CONFIG_X86_32
-# define PA_CONTROL_PAGE 0
-# define VA_CONTROL_PAGE 1
-# define PA_PGD 2
-# define VA_PGD 3
-# define PA_PTE_0 4
-# define VA_PTE_0 5
-# define PA_PTE_1 6
-# define VA_PTE_1 7
-# define PA_SWAP_PAGE 8
-# ifdef CONFIG_X86_PAE
-# define PA_PMD_0 9
-# define VA_PMD_0 10
-# define PA_PMD_1 11
-# define VA_PMD_1 12
-# define PAGES_NR 13
-# else
-# define PAGES_NR 9
-# endif
-#else
-# define PA_CONTROL_PAGE 0
-# define VA_CONTROL_PAGE 1
-# define PA_PGD 2
-# define VA_PGD 3
-# define PA_PUD_0 4
-# define VA_PUD_0 5
-# define PA_PMD_0 6
-# define VA_PMD_0 7
-# define PA_PTE_0 8
-# define VA_PTE_0 9
-# define PA_PUD_1 10
-# define VA_PUD_1 11
-# define PA_PMD_1 12
-# define VA_PMD_1 13
-# define PA_PTE_1 14
-# define VA_PTE_1 15
-# define PA_TABLE_PAGE 16
-# define PAGES_NR 17
-#endif
-
-#ifdef CONFIG_X86_32
-# define KEXEC_CONTROL_CODE_MAX_SIZE 2048
-#endif
-
-#ifndef __ASSEMBLY__
-
-#include <linux/string.h>
-
-#include <asm/page.h>
-#include <asm/ptrace.h>
-
-/*
- * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
- * I.e. Maximum page that is mapped directly into kernel memory,
- * and kmap is not required.
- *
- * So far x86_64 is limited to 40 physical address bits.
- */
-#ifdef CONFIG_X86_32
-/* Maximum physical address we can use pages from */
-# define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
-/* Maximum address we can reach in physical address mode */
-# define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
-/* Maximum address we can use for the control code buffer */
-# define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
-
-# define KEXEC_CONTROL_PAGE_SIZE 4096
-
-/* The native architecture */
-# define KEXEC_ARCH KEXEC_ARCH_386
-
-/* We can also handle crash dumps from 64 bit kernel. */
-# define vmcore_elf_check_arch_cross(x) ((x)->e_machine == EM_X86_64)
-#else
-/* Maximum physical address we can use pages from */
-# define KEXEC_SOURCE_MEMORY_LIMIT (0xFFFFFFFFFFUL)
-/* Maximum address we can reach in physical address mode */
-# define KEXEC_DESTINATION_MEMORY_LIMIT (0xFFFFFFFFFFUL)
-/* Maximum address we can use for the control pages */
-# define KEXEC_CONTROL_MEMORY_LIMIT (0xFFFFFFFFFFUL)
-
-/* Allocate one page for the pdp and the second for the code */
-# define KEXEC_CONTROL_PAGE_SIZE (4096UL + 4096UL)
-
-/* The native architecture */
-# define KEXEC_ARCH KEXEC_ARCH_X86_64
-#endif
-
-/*
- * CPU does not save ss and sp on stack if execution is already
- * running in kernel mode at the time of NMI occurrence. This code
- * fixes it.
- */
-static inline void crash_fixup_ss_esp(struct pt_regs *newregs,
- struct pt_regs *oldregs)
-{
-#ifdef CONFIG_X86_32
- newregs->sp = (unsigned long)&(oldregs->sp);
- asm volatile("xorl %%eax, %%eax\n\t"
- "movw %%ss, %%ax\n\t"
- :"=a"(newregs->ss));
-#endif
-}
-
-/*
- * This function is responsible for capturing register states if coming
- * via panic otherwise just fix up the ss and sp if coming via kernel
- * mode exception.
- */
-static inline void crash_setup_regs(struct pt_regs *newregs,
- struct pt_regs *oldregs)
-{
- if (oldregs) {
- memcpy(newregs, oldregs, sizeof(*newregs));
- crash_fixup_ss_esp(newregs, oldregs);
- } else {
-#ifdef CONFIG_X86_32
- asm volatile("movl %%ebx,%0" : "=m"(newregs->bx));
- asm volatile("movl %%ecx,%0" : "=m"(newregs->cx));
- asm volatile("movl %%edx,%0" : "=m"(newregs->dx));
- asm volatile("movl %%esi,%0" : "=m"(newregs->si));
- asm volatile("movl %%edi,%0" : "=m"(newregs->di));
- asm volatile("movl %%ebp,%0" : "=m"(newregs->bp));
- asm volatile("movl %%eax,%0" : "=m"(newregs->ax));
- asm volatile("movl %%esp,%0" : "=m"(newregs->sp));
- asm volatile("movl %%ss, %%eax;" :"=a"(newregs->ss));
- asm volatile("movl %%cs, %%eax;" :"=a"(newregs->cs));
- asm volatile("movl %%ds, %%eax;" :"=a"(newregs->ds));
- asm volatile("movl %%es, %%eax;" :"=a"(newregs->es));
- asm volatile("pushfl; popl %0" :"=m"(newregs->flags));
-#else
- asm volatile("movq %%rbx,%0" : "=m"(newregs->bx));
- asm volatile("movq %%rcx,%0" : "=m"(newregs->cx));
- asm volatile("movq %%rdx,%0" : "=m"(newregs->dx));
- asm volatile("movq %%rsi,%0" : "=m"(newregs->si));
- asm volatile("movq %%rdi,%0" : "=m"(newregs->di));
- asm volatile("movq %%rbp,%0" : "=m"(newregs->bp));
- asm volatile("movq %%rax,%0" : "=m"(newregs->ax));
- asm volatile("movq %%rsp,%0" : "=m"(newregs->sp));
- asm volatile("movq %%r8,%0" : "=m"(newregs->r8));
- asm volatile("movq %%r9,%0" : "=m"(newregs->r9));
- asm volatile("movq %%r10,%0" : "=m"(newregs->r10));
- asm volatile("movq %%r11,%0" : "=m"(newregs->r11));
- asm volatile("movq %%r12,%0" : "=m"(newregs->r12));
- asm volatile("movq %%r13,%0" : "=m"(newregs->r13));
- asm volatile("movq %%r14,%0" : "=m"(newregs->r14));
- asm volatile("movq %%r15,%0" : "=m"(newregs->r15));
- asm volatile("movl %%ss, %%eax;" :"=a"(newregs->ss));
- asm volatile("movl %%cs, %%eax;" :"=a"(newregs->cs));
- asm volatile("pushfq; popq %0" :"=m"(newregs->flags));
-#endif
- newregs->ip = (unsigned long)current_text_addr();
- }
-}
-
-#ifdef CONFIG_X86_32
-asmlinkage unsigned long
-relocate_kernel(unsigned long indirection_page,
- unsigned long control_page,
- unsigned long start_address,
- unsigned int has_pae,
- unsigned int preserve_context);
-#else
-NORET_TYPE void
-relocate_kernel(unsigned long indirection_page,
- unsigned long page_list,
- unsigned long start_address) ATTRIB_NORET;
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* ASM_X86__KEXEC_H */
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