RE: [Xen-devel] Partial succes VGA passthrough Ati Radeon HD4850 on Asus P5Q-EM DO (Q45 chipset)

["Han, Weidong" <weidong.han@xxxxxxxxx>]

Attached it. I assume you already know that add 'gfx_passthru=1' in hvm config 
file to enable graphics pass-through.

Regards,
Weidong

-----Original Message-----
From: Sander Eikelenboom [mailto:linux@xxxxxxxxxxxxxx] 
Sent: Friday, November 27, 2009 5:54 PM
To: Han, Weidong
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Partial succes VGA passthrough Ati Radeon HD4850 on 
Asus P5Q-EM DO (Q45 chipset)

Is there a special patch for the IGD passthrough? hmm i guess i missed / can't 
find that one.
If so,could you resend it ?

Friday, November 27, 2009, 10:31:50 AM, you wrote:

> My first version patches including pBAR=vBAR and loading vbios from file 
> patches can work for many cards, but I didn't try your ATI card. If you need 
> more help, pls send out qemu log, and output of 'xm dmesg'.

> BTW, pBAR=vBAR is too tricky, so we didn't try to push it into upstream. 

> If you try IGD pass-through, you can use recent changeset which already 
> include basic graphics pass-through patches, and only need to apply the IGD 
> pass-through patch to qemu. It should be very simple have a try. 

> Regards,
> Weidong

> -----Original Message-----
> From: Sander Eikelenboom [mailto:linux@xxxxxxxxxxxxxx] 
> Sent: Friday, November 27, 2009 5:16 PM
> To: Han, Weidong
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] Partial succes VGA passthrough Ati Radeon HD4850 on 
> Asus P5Q-EM DO (Q45 chipset)


> Nope the Ati catalyst driver is not working properly, so it has fallen back 
> to the basic vga driver it seems.
> I was going to tryout the IGD aswell, and perhaps i haven't got an entire 
> copy of the VGA bios or something like that, so I will try some more things.
> I have applied all four patches your have sent in august/september (first 
> version), including the pbar=vbar patch

> Is there anymore news / newer version of vga passthrough patches ?

> Would it be handy to eventually have the pbar=vbar as generic option in 
> passthrough ?


> Regards,

> Sander





> Friday, November 27, 2009, 3:06:15 AM, you wrote:

>> Did you see the driver working properly in guest winxp? Did you applied the 
>> pBAR=vBAR patch? Mr. Teo En Ming (Zhang Enming) 
>> [space.time.universe@xxxxxxxxx] can successfully pass-through graphics card 
>> to winxp, you can search his mails for detailed steps.

>> Actually, on Q45 chipset, you can pass-through the integrated graphics card 
>> to winxp with my IGD-passthrough patch (sent out last month).

>> Regards,
>> Weidong
>>  
>> -----Original Message-----
>> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
>> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Sander 
>> Eikelenboom
>> Sent: Thursday, November 26, 2009 10:40 PM
>> To: xen-devel@xxxxxxxxxxxxxxxxxxx
>> Subject: [Xen-devel] Partial succes VGA passthrough Ati Radeon HD4850 on 
>> Asus P5Q-EM DO (Q45 chipset)


>> I just found some time to try vga passthrough again.
>> With Han Weidong's patches from around august/september i am able to get 
>> winxp to boot passing through vga.
>> The videocard is not properly recognised yet, but at least basic vga support 
>> is working in winxp.

>> Hardware:
>> - P5Q-EM DO mainbord (Q45 chipset)
>> - Ati Radeon 4850 PCI-e GFX card
>> - 2 GB mem
>> - Q9400 processor

>> Thx so far







-- 
Best regards,
 Sander                            mailto:linux@xxxxxxxxxxxxxx

Attachment: 0001-IGD-passthrough-support-v2.patch
Description: 0001-IGD-passthrough-support-v2.patch

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