| 594,7 → 594,7 |
|---|
| jz .err_2 |
| |
| mov edx, [file_size] ;preallocate page memory |
| shr eax, 10 |
| shr eax, 9 |
| lea edi, [page_tabs+eax] |
| add edx, 4095 |
| shr edx, 12 |
| 605,6 → 605,8 |
|---|
| |
| or eax, PG_UWR |
| stosd |
| xor eax, eax |
| stosd |
| dec edx |
| jnz @B |
| |
| 649,7 → 651,7 |
|---|
| test eax, eax |
| jz .err_2 |
| |
| shr eax, 10 ; and remap pages. |
| shr eax, 9 ; and remap pages. |
| |
| mov ecx, [file_size] |
| add ecx, 4095 |
| 656,7 → 658,7 |
|---|
| shr ecx, 12 |
| |
| mov esi, [km_file] |
| shr esi, 10 |
| shr esi, 9 |
| add esi, page_tabs |
| |
| lea edi, [page_tabs+eax] |
| 667,6 → 669,8 |
|---|
| and eax, 0xFFFFF000 |
| or eax, PG_UWR |
| stosd |
| xor eax, eax |
| stosd |
| loop @B |
| |
| stdcall free_kernel_space, [km_file] ; release allocated kernel space |
| 1222,7 → 1226,7 |
|---|
| mov [eax+HDLL.parent], esi |
| mov edx, ebx |
| shr edx, 12 |
| or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
| or dword [page_tabs+(edx-1)*8], DONT_FREE_BLOCK |
| ; copy entries of page table from kernel-side image to usermode |
| ; use copy-on-write for user-mode image, so map as readonly |
| xor edi, edi |
| 1229,10 → 1233,10 |
|---|
| mov ecx, [esi+DLLDESCR.data] |
| shr ecx, 12 |
| .map_pages_loop: |
| mov eax, [page_tabs+ecx*4] |
| mov eax, [page_tabs+ecx*8] |
| and eax, not 0xFFF |
| or al, PG_UR |
| xchg eax, [page_tabs+edx*4] |
| xchg eax, [page_tabs+edx*8] |
| test al, 1 |
| jz @f |
| call free_page |