| 5458,7 → 5458,7 |
|---|
| out 0x21, al |
| out 0xA1, al |
| |
| if 1 |
| if 0 |
| mov word [OS_BASE+0x467+0],pr_mode_exit |
| mov word [OS_BASE+0x467+2],0x1000 |
| |
| 5471,6 → 5471,7 |
|---|
| out 0x64,al |
| |
| hlt |
| jmp $-1 |
| |
| else |
| cmp byte [OS_BASE + 0x9030], 2 |
| 5522,6 → 5523,72 |
|---|
| jmp no_acpi_power_off |
| .fadt_found: |
| ; ebx is linear address of FADT |
| mov edi, [ebx+40] ; physical address of the DSDT |
| lea eax, [ebp+4000h] |
| stdcall map_page, eax, edi, PG_MAP |
| lea eax, [ebp+5000h] |
| lea esi, [edi+0x1000] |
| stdcall map_page, eax, esi, PG_MAP |
| and esi, 0xFFF |
| sub edi, esi |
| cmp dword [esi+ebp+4000h], 'DSDT' |
| jnz no_acpi_power_off |
| mov eax, [esi+ebp+4004h] ; DSDT length |
| sub eax, 36+4 |
| jbe no_acpi_power_off |
| add esi, 36 |
| .scan_dsdt: |
| cmp dword [esi+ebp+4000h], '_S5_' |
| jnz .scan_dsdt_cont |
| cmp byte [esi+ebp+4000h+4], 12h ; DefPackage opcode |
| jnz .scan_dsdt_cont |
| mov dl, [esi+ebp+4000h+6] |
| cmp dl, 4 ; _S5_ package must contain 4 bytes |
| ; ...in theory; in practice, VirtualBox has 2 bytes |
| ja .scan_dsdt_cont |
| cmp dl, 1 |
| jb .scan_dsdt_cont |
| lea esi, [esi+ebp+4000h+7] |
| xor ecx, ecx |
| cmp byte [esi], 0 ; 0 means zero byte, 0Ah xx means byte xx |
| jz @f |
| cmp byte [esi], 0xA |
| jnz no_acpi_power_off |
| inc esi |
| mov cl, [esi] |
| @@: |
| inc esi |
| cmp dl, 2 |
| jb @f |
| cmp byte [esi], 0 |
| jz @f |
| cmp byte [esi], 0xA |
| jnz no_acpi_power_off |
| inc esi |
| mov ch, [esi] |
| @@: |
| jmp do_acpi_power_off |
| .scan_dsdt_cont: |
| inc esi |
| cmp esi, 0x1000 |
| jb @f |
| sub esi, 0x1000 |
| add edi, 0x1000 |
| push eax |
| lea eax, [ebp+4000h] |
| stdcall map_page, eax, edi, PG_MAP |
| push PG_MAP |
| lea eax, [edi+1000h] |
| push eax |
| lea eax, [ebp+5000h] |
| push eax |
| stdcall map_page |
| pop eax |
| @@: |
| dec eax |
| jnz .scan_dsdt |
| jmp no_acpi_power_off |
| do_acpi_power_off: |
| mov edx, [ebx+48] |
| test edx, edx |
| jz .nosmi |
| 5533,10 → 5600,13 |
|---|
| test al, 1 |
| jz @b |
| .nosmi: |
| and cx, 0x0707 |
| shl cx, 2 |
| or cx, 0x2020 |
| mov edx, [ebx+64] |
| in ax, dx |
| and ax, 203h |
| or ax, 3C00h |
| or ah, cl |
| out dx, ax |
| mov edx, [ebx+68] |
| test edx, edx |
| 5543,7 → 5613,7 |
|---|
| jz @f |
| in ax, dx |
| and ax, 203h |
| or ax, 3C00h |
| or ah, ch |
| out dx, ax |
| @@: |
| jmp $ |
| 5562,6 → 5632,7 |
|---|
| out 0x64,al |
| |
| hlt |
| jmp $-1 |
| |
| scan_rsdp: |
| add eax, OS_BASE |