diff options
Diffstat (limited to 'include/asm-i386/kexec.h')
-rw-r--r-- | include/asm-i386/kexec.h | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/include/asm-i386/kexec.h b/include/asm-i386/kexec.h deleted file mode 100644 index 4b9dc9e6b701..000000000000 --- a/include/asm-i386/kexec.h +++ /dev/null | |||
@@ -1,99 +0,0 @@ | |||
1 | #ifndef _I386_KEXEC_H | ||
2 | #define _I386_KEXEC_H | ||
3 | |||
4 | #define PA_CONTROL_PAGE 0 | ||
5 | #define VA_CONTROL_PAGE 1 | ||
6 | #define PA_PGD 2 | ||
7 | #define VA_PGD 3 | ||
8 | #define PA_PTE_0 4 | ||
9 | #define VA_PTE_0 5 | ||
10 | #define PA_PTE_1 6 | ||
11 | #define VA_PTE_1 7 | ||
12 | #ifdef CONFIG_X86_PAE | ||
13 | #define PA_PMD_0 8 | ||
14 | #define VA_PMD_0 9 | ||
15 | #define PA_PMD_1 10 | ||
16 | #define VA_PMD_1 11 | ||
17 | #define PAGES_NR 12 | ||
18 | #else | ||
19 | #define PAGES_NR 8 | ||
20 | #endif | ||
21 | |||
22 | #ifndef __ASSEMBLY__ | ||
23 | |||
24 | #include <asm/ptrace.h> | ||
25 | #include <asm/string.h> | ||
26 | |||
27 | /* | ||
28 | * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. | ||
29 | * I.e. Maximum page that is mapped directly into kernel memory, | ||
30 | * and kmap is not required. | ||
31 | */ | ||
32 | |||
33 | /* Maximum physical address we can use pages from */ | ||
34 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) | ||
35 | /* Maximum address we can reach in physical address mode */ | ||
36 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) | ||
37 | /* Maximum address we can use for the control code buffer */ | ||
38 | #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE | ||
39 | |||
40 | #define KEXEC_CONTROL_CODE_SIZE 4096 | ||
41 | |||
42 | /* The native architecture */ | ||
43 | #define KEXEC_ARCH KEXEC_ARCH_386 | ||
44 | |||
45 | /* We can also handle crash dumps from 64 bit kernel. */ | ||
46 | #define vmcore_elf_check_arch_cross(x) ((x)->e_machine == EM_X86_64) | ||
47 | |||
48 | /* CPU does not save ss and esp on stack if execution is already | ||
49 | * running in kernel mode at the time of NMI occurrence. This code | ||
50 | * fixes it. | ||
51 | */ | ||
52 | static inline void crash_fixup_ss_esp(struct pt_regs *newregs, | ||
53 | struct pt_regs *oldregs) | ||
54 | { | ||
55 | memcpy(newregs, oldregs, sizeof(*newregs)); | ||
56 | newregs->esp = (unsigned long)&(oldregs->esp); | ||
57 | __asm__ __volatile__( | ||
58 | "xorl %%eax, %%eax\n\t" | ||
59 | "movw %%ss, %%ax\n\t" | ||
60 | :"=a"(newregs->xss)); | ||
61 | } | ||
62 | |||
63 | /* | ||
64 | * This function is responsible for capturing register states if coming | ||
65 | * via panic otherwise just fix up the ss and esp if coming via kernel | ||
66 | * mode exception. | ||
67 | */ | ||
68 | static inline void crash_setup_regs(struct pt_regs *newregs, | ||
69 | struct pt_regs *oldregs) | ||
70 | { | ||
71 | if (oldregs) | ||
72 | crash_fixup_ss_esp(newregs, oldregs); | ||
73 | else { | ||
74 | __asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->ebx)); | ||
75 | __asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->ecx)); | ||
76 | __asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->edx)); | ||
77 | __asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->esi)); | ||
78 | __asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->edi)); | ||
79 | __asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->ebp)); | ||
80 | __asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->eax)); | ||
81 | __asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->esp)); | ||
82 | __asm__ __volatile__("movw %%ss, %%ax;" :"=a"(newregs->xss)); | ||
83 | __asm__ __volatile__("movw %%cs, %%ax;" :"=a"(newregs->xcs)); | ||
84 | __asm__ __volatile__("movw %%ds, %%ax;" :"=a"(newregs->xds)); | ||
85 | __asm__ __volatile__("movw %%es, %%ax;" :"=a"(newregs->xes)); | ||
86 | __asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->eflags)); | ||
87 | |||
88 | newregs->eip = (unsigned long)current_text_addr(); | ||
89 | } | ||
90 | } | ||
91 | asmlinkage NORET_TYPE void | ||
92 | relocate_kernel(unsigned long indirection_page, | ||
93 | unsigned long control_page, | ||
94 | unsigned long start_address, | ||
95 | unsigned int has_pae) ATTRIB_NORET; | ||
96 | |||
97 | #endif /* __ASSEMBLY__ */ | ||
98 | |||
99 | #endif /* _I386_KEXEC_H */ | ||