diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/crash.h | 9 | ||||
| -rw-r--r-- | arch/x86/include/asm/kexec.h | 30 |
2 files changed, 36 insertions, 3 deletions
diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h new file mode 100644 index 000000000000..f498411f2500 --- /dev/null +++ b/arch/x86/include/asm/crash.h @@ -0,0 +1,9 @@ +#ifndef _ASM_X86_CRASH_H +#define _ASM_X86_CRASH_H + +int crash_load_segments(struct kimage *image); +int crash_copy_backup_region(struct kimage *image); +int crash_setup_memmap_entries(struct kimage *image, + struct boot_params *params); + +#endif /* _ASM_X86_CRASH_H */ diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index 0dfccced4edf..d2434c1cad05 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -25,6 +25,8 @@ #include <asm/ptrace.h> #include <asm/bootparam.h> +struct kimage; + /* * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. * I.e. Maximum page that is mapped directly into kernel memory, @@ -62,6 +64,10 @@ # define KEXEC_ARCH KEXEC_ARCH_X86_64 #endif +/* Memory to backup during crash kdump */ +#define KEXEC_BACKUP_SRC_START (0UL) +#define KEXEC_BACKUP_SRC_END (640 * 1024UL) /* 640K */ + /* * 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 @@ -161,17 +167,35 @@ struct kimage_arch { pud_t *pud; pmd_t *pmd; pte_t *pte; + /* Details of backup region */ + unsigned long backup_src_start; + unsigned long backup_src_sz; + + /* Physical address of backup segment */ + unsigned long backup_load_addr; + + /* Core ELF header buffer */ + void *elf_headers; + unsigned long elf_headers_sz; + unsigned long elf_load_addr; }; +#endif /* CONFIG_X86_32 */ +#ifdef CONFIG_X86_64 +/* + * Number of elements and order of elements in this structure should match + * with the ones in arch/x86/purgatory/entry64.S. If you make a change here + * make an appropriate change in purgatory too. + */ struct kexec_entry64_regs { uint64_t rax; - uint64_t rbx; uint64_t rcx; uint64_t rdx; - uint64_t rsi; - uint64_t rdi; + uint64_t rbx; uint64_t rsp; uint64_t rbp; + uint64_t rsi; + uint64_t rdi; uint64_t r8; uint64_t r9; uint64_t r10; |