diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kexec.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 696e5ec63f7..8c2c7fcd58c 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -7,6 +7,8 @@ #include <linux/linkage.h> #include <linux/compat.h> #include <linux/ioport.h> +#include <linux/elfcore.h> +#include <linux/elf.h> #include <asm/kexec.h> /* Verify architecture specific macros are defined */ @@ -31,6 +33,19 @@ #error KEXEC_ARCH not defined #endif +#define KEXEC_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4) +#define KEXEC_CORE_NOTE_NAME "CORE" +#define KEXEC_CORE_NOTE_NAME_BYTES ALIGN(sizeof(KEXEC_CORE_NOTE_NAME), 4) +#define KEXEC_CORE_NOTE_DESC_BYTES ALIGN(sizeof(struct elf_prstatus), 4) +/* + * The per-cpu notes area is a list of notes terminated by a "NULL" + * note header. For kdump, the code in vmcore.c runs in the context + * of the second kernel to combine them into one note. + */ +#define KEXEC_NOTE_BYTES ( (KEXEC_NOTE_HEAD_BYTES * 2) + \ + KEXEC_CORE_NOTE_NAME_BYTES + \ + KEXEC_CORE_NOTE_DESC_BYTES ) + /* * This structure is used to hold the arguments that are used when loading * kernel binaries. @@ -136,7 +151,7 @@ extern struct kimage *kexec_crash_image; /* Location of a reserved region to hold the crash kernel. */ extern struct resource crashk_res; -typedef u32 note_buf_t[MAX_NOTE_BYTES/4]; +typedef u32 note_buf_t[KEXEC_NOTE_BYTES/4]; extern note_buf_t *crash_notes; |