| #ifndef _X86_64_KEXEC_H |
| #define _X86_64_KEXEC_H |
| |
| #include <asm/page.h> |
| #include <asm/proto.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 |
| typedef u32 note_buf_t[MAX_NOTE_BYTES/4]; |
| |
| extern note_buf_t crash_notes[]; |
| |
| #endif /* _X86_64_KEXEC_H */ |
