| Eric W. Biederman | 5234f5e | 2005-06-25 14:58:02 -0700 | [diff] [blame] | 1 | #ifndef _X86_64_KEXEC_H |
| 2 | #define _X86_64_KEXEC_H |
| 3 | |
| 4 | #include <asm/page.h> |
| 5 | #include <asm/proto.h> |
| 6 | |
| 7 | /* |
| 8 | * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. |
| 9 | * I.e. Maximum page that is mapped directly into kernel memory, |
| 10 | * and kmap is not required. |
| 11 | * |
| 12 | * So far x86_64 is limited to 40 physical address bits. |
| 13 | */ |
| 14 | |
| 15 | /* Maximum physical address we can use pages from */ |
| 16 | #define KEXEC_SOURCE_MEMORY_LIMIT (0xFFFFFFFFFFUL) |
| 17 | /* Maximum address we can reach in physical address mode */ |
| 18 | #define KEXEC_DESTINATION_MEMORY_LIMIT (0xFFFFFFFFFFUL) |
| 19 | /* Maximum address we can use for the control pages */ |
| 20 | #define KEXEC_CONTROL_MEMORY_LIMIT (0xFFFFFFFFFFUL) |
| 21 | |
| 22 | /* Allocate one page for the pdp and the second for the code */ |
| 23 | #define KEXEC_CONTROL_CODE_SIZE (4096UL + 4096UL) |
| 24 | |
| 25 | /* The native architecture */ |
| 26 | #define KEXEC_ARCH KEXEC_ARCH_X86_64 |
| 27 | |
| Vivek Goyal | 625f1c82 | 2005-06-25 14:58:12 -0700 | [diff] [blame] | 28 | #define MAX_NOTE_BYTES 1024 |
| Vivek Goyal | 625f1c82 | 2005-06-25 14:58:12 -0700 | [diff] [blame] | 29 | |
| Eric W. Biederman | 5234f5e | 2005-06-25 14:58:02 -0700 | [diff] [blame] | 30 | #endif /* _X86_64_KEXEC_H */ |