| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * 1. load vmlinuz |
| 3 | * |
| 4 | * CONFIG_MEMORY_START +-----------------------+ |
| 5 | * | vmlinuz | |
| 6 | * +-----------------------+ |
| 7 | * 2. decompressed |
| 8 | * |
| 9 | * CONFIG_MEMORY_START +-----------------------+ |
| 10 | * | vmlinuz | |
| 11 | * +-----------------------+ |
| 12 | * | | |
| 13 | * BOOT_RELOC_ADDR +-----------------------+ |
| 14 | * | | |
| 15 | * KERNEL_DECOMPRESS_ADDR +-----------------------+ |
| 16 | * | vmlinux | |
| 17 | * +-----------------------+ |
| 18 | * |
| 19 | * 3. relocate copy & jump code |
| 20 | * |
| 21 | * CONFIG_MEMORY_START +-----------------------+ |
| 22 | * | vmlinuz | |
| 23 | * +-----------------------+ |
| 24 | * | | |
| 25 | * BOOT_RELOC_ADDR +-----------------------+ |
| 26 | * | boot(copy&jump) | |
| 27 | * KERNEL_DECOMPRESS_ADDR +-----------------------+ |
| 28 | * | vmlinux | |
| 29 | * +-----------------------+ |
| 30 | * |
| 31 | * 4. relocate decompressed kernel |
| 32 | * |
| 33 | * CONFIG_MEMORY_START +-----------------------+ |
| 34 | * | vmlinux | |
| 35 | * +-----------------------+ |
| 36 | * | | |
| 37 | * BOOT_RELOC_ADDR +-----------------------+ |
| 38 | * | boot(copy&jump) | |
| 39 | * KERNEL_DECOMPRESS_ADDR +-----------------------+ |
| 40 | * | | |
| 41 | * +-----------------------+ |
| 42 | * |
| 43 | */ |
| 44 | #ifdef __ASSEMBLY__ |
| 45 | #define __val(x) x |
| 46 | #else |
| 47 | #define __val(x) (x) |
| 48 | #endif |
| 49 | |
| 50 | #define DECOMPRESS_OFFSET_BASE __val(0x00900000) |
| 51 | #define BOOT_RELOC_SIZE __val(0x00001000) |
| 52 | |
| 53 | #define KERNEL_EXEC_ADDR __val(CONFIG_MEMORY_START) |
| 54 | #define KERNEL_DECOMPRESS_ADDR __val(CONFIG_MEMORY_START + \ |
| 55 | DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE) |
| 56 | #define KERNEL_ENTRY __val(CONFIG_MEMORY_START + 0x1000) |
| 57 | |
| 58 | #define BOOT_EXEC_ADDR __val(CONFIG_MEMORY_START) |
| 59 | #define BOOT_RELOC_ADDR __val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE) |