| /kernel/trunk/arch/amd64/src/boot/boot.S |
|---|
| 160,15 → 160,16 |
| cmpl $0, %ecx |
| je mods_invalid |
| xorq %rdx, %rdx |
| movl 24(%ebx), %esi # mbi->mods_addr |
| movl 0(%esi), %edx # mods->mod_start |
| movl 4(%esi), %ecx # mods->mod_end |
| subl %edx, %ecx |
| addl $0x80000000, %edx |
| addq $0xffffffff80000000, %rdx |
| mods_invalid: |
| movl %ecx, init_size |
| movl %edx, init_addr |
| movq %rdx, init_addr |
| bt $6, %eax # mbi->flags[6] (mmap_length, mmap_addr valid) |
| jc mmap_valid |