KolibriOS/kolibrios
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Enable capacity checks for Protective MBR and GPT

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git-svn-id: svn://kolibrios.org@6844 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan Baravy 2017-01-21 00:21:05 +00:00
parent dbe9918dc6
commit e828b2c8b5
1 changed files with 10 additions and 12 deletions
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22
kernel/trunk/blkdev/disk.inc
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@ -923,10 +923,9 @@ endl
sub eax, dword[_mylba+0]
sbb edx, dword[_mylba+4]
cmp eax, dword[ebx+GPTH.AlternateLBA+0]
; DISK.MediaInfo.Capacity is -1 for ATA devices, disable this check for now.
; jnz .fail_free_gpt
jnz .fail_free_gpt
cmp edx, dword[ebx+GPTH.AlternateLBA+4]
; jnz .fail_free_gpt
jnz .fail_free_gpt
; Compute GPT Partition Entry Array (GPEA) length in bytes
mov eax, [ebx+GPTH.NumberOfPartitionEntries]
@ -1022,15 +1021,14 @@ is_protective_mbr:
jnz .exit
cmp dword[ecx+8], 1
jnz .exit
; DISK.MediaInfo.Capacity is -1 for ATA devices, disable this check for now.
; cmp dword[esi+DISK.MediaInfo.Capacity+4], eax
; mov edi, 0xFFFFFFFF
; jnz @f
; mov edi, dword[esi+DISK.MediaInfo.Capacity+0]
; dec edi
;@@:
; cmp dword[ecx+12], edi
; jnz .exit
cmp dword[esi+DISK.MediaInfo.Capacity+4], eax
mov edi, 0xFFFFFFFF
jnz @f
mov edi, dword[esi+DISK.MediaInfo.Capacity+0]
dec edi
@@:
cmp dword[ecx+12], edi
jnz .exit
; Check that partition records 1-3 are filled with zero
lea edi, [ecx+16]