diff options
Diffstat (limited to 'include/linux/crash_core.h')
| -rw-r--r-- | include/linux/crash_core.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h index de62a722431e..0c06561bf5ff 100644 --- a/include/linux/crash_core.h +++ b/include/linux/crash_core.h @@ -28,6 +28,8 @@ VMCOREINFO_BYTES) typedef u32 note_buf_t[CRASH_CORE_NOTE_BYTES/4]; +/* Per cpu memory for storing cpu states in case of system crash. */ +extern note_buf_t __percpu *crash_notes; void crash_update_vmcoreinfo_safecopy(void *ptr); void crash_save_vmcoreinfo(void); @@ -84,4 +86,29 @@ int parse_crashkernel_high(char *cmdline, unsigned long long system_ram, int parse_crashkernel_low(char *cmdline, unsigned long long system_ram, unsigned long long *crash_size, unsigned long long *crash_base); +/* Alignment required for elf header segment */ +#define ELF_CORE_HEADER_ALIGN 4096 + +struct crash_mem { + unsigned int max_nr_ranges; + unsigned int nr_ranges; + struct range ranges[]; +}; + +extern int crash_exclude_mem_range(struct crash_mem *mem, + unsigned long long mstart, + unsigned long long mend); +extern int crash_prepare_elf64_headers(struct crash_mem *mem, int need_kernel_map, + void **addr, unsigned long *sz); + +struct kimage; +struct kexec_segment; + +#define KEXEC_CRASH_HP_NONE 0 +#define KEXEC_CRASH_HP_ADD_CPU 1 +#define KEXEC_CRASH_HP_REMOVE_CPU 2 +#define KEXEC_CRASH_HP_ADD_MEMORY 3 +#define KEXEC_CRASH_HP_REMOVE_MEMORY 4 +#define KEXEC_CRASH_HP_INVALID_CPU -1U + #endif /* LINUX_CRASH_CORE_H */ |