Re: [Qemu-devel] [PATCH] ATA: Allow WIN_SECURITY_FREEZE_LOCK as nop

[Alexander Graf]

On 07.02.2012, at 15:57, Andreas Färber wrote:

> Hi Alex,
> 
> Am 30.01.2012 23:29, schrieb Alexander Graf:
>> 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.
> 
> I tested this with Windows 2008 R2 and it does not resolve the blue
> screen I'm getting there during installation. Unfortunately it reboots
> so quickly that I cannot read what it says.

Phew, that's probably yet another issue then.

> Could you share how you debugged your Windows 8 issue?

I enabled printf debugging in hw/ide/core.c and looked through the commands 
close to the blue screen :)


Alex