| 350,6 → 350,34 |
|---|
| ret |
| endp |
| |
| ; Allocates a physical page for master page table |
| ; that duplicates first Mb of OS_BASE at address 0; |
| ; used for starting APs and for shutting down, |
| ; where it is important to execute code in trivial-mapped pages. |
| ; Returns eax = allocated physical page. |
| proc create_trampoline_pgmap |
| ; The only non-trivial moment: |
| ; we need a linear address to fill information, |
| ; but we don't need it outside of this function, |
| ; so we're returning physical address. |
| ; Therefore, allocate memory with kernel_alloc, |
| ; this will allocate physical page and a linear address somewhere, |
| ; and deallocate only linear address with free_kernel_space. |
| stdcall kernel_alloc, 0x1000 |
| mov edi, eax |
| mov esi, master_tab |
| mov ecx, 1024 |
| rep movsd |
| mov ecx, [master_tab+(OS_BASE shr 20)] |
| mov [eax], ecx |
| mov edi, eax |
| call get_pg_addr |
| push eax |
| stdcall free_kernel_space, edi |
| pop eax |
| ret |
| endp |
| |
| align 4 |
| proc init_LFB |
| locals |