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Diffstat (limited to 'include/asm-x86/kexec_32.h')
-rw-r--r--include/asm-x86/kexec_32.h36
1 files changed, 18 insertions, 18 deletions
diff --git a/include/asm-x86/kexec_32.h b/include/asm-x86/kexec_32.h
index 4b9dc9e6b701..ff39d2f88022 100644
--- a/include/asm-x86/kexec_32.h
+++ b/include/asm-x86/kexec_32.h
@@ -45,7 +45,7 @@
45/* We can also handle crash dumps from 64 bit kernel. */ 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) 46#define vmcore_elf_check_arch_cross(x) ((x)->e_machine == EM_X86_64)
47 47
48/* CPU does not save ss and esp on stack if execution is already 48/* CPU does not save ss and sp on stack if execution is already
49 * running in kernel mode at the time of NMI occurrence. This code 49 * running in kernel mode at the time of NMI occurrence. This code
50 * fixes it. 50 * fixes it.
51 */ 51 */
@@ -53,16 +53,16 @@ static inline void crash_fixup_ss_esp(struct pt_regs *newregs,
53 struct pt_regs *oldregs) 53 struct pt_regs *oldregs)
54{ 54{
55 memcpy(newregs, oldregs, sizeof(*newregs)); 55 memcpy(newregs, oldregs, sizeof(*newregs));
56 newregs->esp = (unsigned long)&(oldregs->esp); 56 newregs->sp = (unsigned long)&(oldregs->sp);
57 __asm__ __volatile__( 57 __asm__ __volatile__(
58 "xorl %%eax, %%eax\n\t" 58 "xorl %%eax, %%eax\n\t"
59 "movw %%ss, %%ax\n\t" 59 "movw %%ss, %%ax\n\t"
60 :"=a"(newregs->xss)); 60 :"=a"(newregs->ss));
61} 61}
62 62
63/* 63/*
64 * This function is responsible for capturing register states if coming 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 65 * via panic otherwise just fix up the ss and sp if coming via kernel
66 * mode exception. 66 * mode exception.
67 */ 67 */
68static inline void crash_setup_regs(struct pt_regs *newregs, 68static inline void crash_setup_regs(struct pt_regs *newregs,
@@ -71,21 +71,21 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
71 if (oldregs) 71 if (oldregs)
72 crash_fixup_ss_esp(newregs, oldregs); 72 crash_fixup_ss_esp(newregs, oldregs);
73 else { 73 else {
74 __asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->ebx)); 74 __asm__ __volatile__("movl %%ebx,%0" : "=m"(newregs->bx));
75 __asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->ecx)); 75 __asm__ __volatile__("movl %%ecx,%0" : "=m"(newregs->cx));
76 __asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->edx)); 76 __asm__ __volatile__("movl %%edx,%0" : "=m"(newregs->dx));
77 __asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->esi)); 77 __asm__ __volatile__("movl %%esi,%0" : "=m"(newregs->si));
78 __asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->edi)); 78 __asm__ __volatile__("movl %%edi,%0" : "=m"(newregs->di));
79 __asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->ebp)); 79 __asm__ __volatile__("movl %%ebp,%0" : "=m"(newregs->bp));
80 __asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->eax)); 80 __asm__ __volatile__("movl %%eax,%0" : "=m"(newregs->ax));
81 __asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->esp)); 81 __asm__ __volatile__("movl %%esp,%0" : "=m"(newregs->sp));
82 __asm__ __volatile__("movw %%ss, %%ax;" :"=a"(newregs->xss)); 82 __asm__ __volatile__("movl %%ss, %%eax;" :"=a"(newregs->ss));
83 __asm__ __volatile__("movw %%cs, %%ax;" :"=a"(newregs->xcs)); 83 __asm__ __volatile__("movl %%cs, %%eax;" :"=a"(newregs->cs));
84 __asm__ __volatile__("movw %%ds, %%ax;" :"=a"(newregs->xds)); 84 __asm__ __volatile__("movl %%ds, %%eax;" :"=a"(newregs->ds));
85 __asm__ __volatile__("movw %%es, %%ax;" :"=a"(newregs->xes)); 85 __asm__ __volatile__("movl %%es, %%eax;" :"=a"(newregs->es));
86 __asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->eflags)); 86 __asm__ __volatile__("pushfl; popl %0" :"=m"(newregs->flags));
87 87
88 newregs->eip = (unsigned long)current_text_addr(); 88 newregs->ip = (unsigned long)current_text_addr();
89 } 89 }
90} 90}
91asmlinkage NORET_TYPE void 91asmlinkage NORET_TYPE void