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ATA: Allow WIN_SECURITY_FREEZE_LOCK as nop 

When using Windows 8 with an AHCI disk drive, it issues a blue screen.
The reason is that WIN_SECURITY_FREEZE_LOCK / CFA_WEAR_LEVEL is not
supported by our ATA implementation, but Windows expects it to be there.

Since without security stuff implemented, the lock would be a nop anyway
and CFA_WEAR_LEVEL already is treated as a nop, let's just allow the cmd
for HD drives as well. That way Windows is happy.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alexander Graf 2012-04-26 12:45:07 +02:00 committed by Kevin Wolf
parent 787f31330e
commit d5b406d95b
1 changed files with 6 additions and 1 deletions
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7
hw/ide/core.c
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@ -1035,7 +1035,7 @@ static const uint8_t ide_cmd_table[0x100] = {
[WIN_IDENTIFY] = ALL_OK,
[WIN_SETFEATURES] = ALL_OK,
[IBM_SENSE_CONDITION] = CFA_OK,
[CFA_WEAR_LEVEL] = CFA_OK,
[CFA_WEAR_LEVEL] = HD_CFA_OK,
[WIN_READ_NATIVE_MAX] = ALL_OK,
};
@ -1350,6 +1350,11 @@ void ide_exec_cmd(IDEBus *bus, uint32_t val)
break;
case CFA_ERASE_SECTORS:
case CFA_WEAR_LEVEL:
#if 0
/* This one has the same ID as CFA_WEAR_LEVEL and is required for
Windows 8 to work with AHCI */
case WIN_SECURITY_FREEZE_LOCK:
#endif
if (val == CFA_WEAR_LEVEL)
s->nsector = 0;
if (val == CFA_ERASE_SECTORS)