diff options
Diffstat (limited to 'include/asm-x86_64/kexec.h')
| -rw-r--r-- | include/asm-x86_64/kexec.h | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/include/asm-x86_64/kexec.h b/include/asm-x86_64/kexec.h deleted file mode 100644 index ae28cd44bcd..00000000000 --- a/include/asm-x86_64/kexec.h +++ /dev/null @@ -1,66 +0,0 @@ -#ifndef _X86_64_KEXEC_H -#define _X86_64_KEXEC_H - -#include <asm/page.h> -#include <asm/proto.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. - */ - -/* 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_CODE_SIZE (4096UL + 4096UL) - -/* The native architecture */ -#define KEXEC_ARCH KEXEC_ARCH_X86_64 - -#define MAX_NOTE_BYTES 1024 - -/* - * Saving the registers of the cpu on which panic occured in - * crash_kexec to save a valid sp. The registers of other cpus - * will be saved in machine_crash_shutdown while shooting down them. - */ - -static inline void crash_setup_regs(struct pt_regs *newregs, - struct pt_regs *oldregs) -{ - if (oldregs) - memcpy(newregs, oldregs, sizeof(*newregs)); - else { - __asm__ __volatile__("movq %%rbx,%0" : "=m"(newregs->rbx)); - __asm__ __volatile__("movq %%rcx,%0" : "=m"(newregs->rcx)); - __asm__ __volatile__("movq %%rdx,%0" : "=m"(newregs->rdx)); - __asm__ __volatile__("movq %%rsi,%0" : "=m"(newregs->rsi)); - __asm__ __volatile__("movq %%rdi,%0" : "=m"(newregs->rdi)); - __asm__ __volatile__("movq %%rbp,%0" : "=m"(newregs->rbp)); - __asm__ __volatile__("movq %%rax,%0" : "=m"(newregs->rax)); - __asm__ __volatile__("movq %%rsp,%0" : "=m"(newregs->rsp)); - __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->eflags)); - - newregs->rip = (unsigned long)current_text_addr(); - } -} -#endif /* _X86_64_KEXEC_H */ |
