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support for PnP disks: add exports and docs

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git-svn-id: svn://kolibrios.org@2120 a494cfbc-eb01-0410-851d-a64ba20cac60
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CleverMouse
2011-08-25 19:58:37 +00:00
parent 1eb4e63e51
commit cdeeb6be66
3 changed files with 88 additions and 3 deletions
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8
kernel/trunk/fs/disk.inc
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@@ -633,10 +633,12 @@ lock dec [partition_buffer_users] ; no, we must allocate
; Note that 'read' callback operates with 64-bit sector numbers, so we must
; push additional zero as a high dword of sector number.
mov al, DISKFUNC.read
stdcall disk_call_driver, ebx, ebp, 0, 1
push 1
stdcall disk_call_driver, ebx, ebp, 0, esp
pop ecx
; 6. If the read has failed, abort the loop.
test eax, eax
jz .mbr_failed
dec ecx
jnz .mbr_failed
; 7. Check the MBR/EBR signature. If it is wrong, abort the loop.
; Soon we will access the partition table which starts at ebx+0x1BE,
; so we can fill its address right now. If we do it now, then the addressing