From: "Michael S. Tsirkin" <mst@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
kvm-devel <kvm@vger.kernel.org>
Subject: Re: [Qemu-commits] [COMMIT c0b1905] qemu/pci: reset device registers on bus reset
Date: Wed, 7 Oct 2009 21:53:40 +0200 [thread overview]
Message-ID: <20091007195338.GA3923@redhat.com> (raw)
In-Reply-To: <4ACC4F43.1010906@redhat.com>
On Wed, Oct 07, 2009 at 10:20:19AM +0200, Avi Kivity wrote:
> On 10/05/2009 04:53 PM, Anthony Liguori wrote:
>> From: Michael S. Tsirkin<mst@redhat.com>
>>
>> Reset BARs and a couple of other registers on bus reset, as per PCI
>> spec.
>>
>
> This commit breaks Windows XP restart. After a restart Windows switches
> from 800x600 cirrus logic vga to 640x480 standard vga. My guess is that
> this is due to two mutually-cancelling bugs:
Could you please tell me how to reproduce the problem exactly?
I tried several configurations but in all of them windows
seems to keep 800x600 across restarts, and shows display adapter
as cirrus vga.
--
MST
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
kvm-devel <kvm@vger.kernel.org>
Subject: [Qemu-devel] Re: [Qemu-commits] [COMMIT c0b1905] qemu/pci: reset device registers on bus reset
Date: Wed, 7 Oct 2009 21:53:40 +0200 [thread overview]
Message-ID: <20091007195338.GA3923@redhat.com> (raw)
In-Reply-To: <4ACC4F43.1010906@redhat.com>
On Wed, Oct 07, 2009 at 10:20:19AM +0200, Avi Kivity wrote:
> On 10/05/2009 04:53 PM, Anthony Liguori wrote:
>> From: Michael S. Tsirkin<mst@redhat.com>
>>
>> Reset BARs and a couple of other registers on bus reset, as per PCI
>> spec.
>>
>
> This commit breaks Windows XP restart. After a restart Windows switches
> from 800x600 cirrus logic vga to 640x480 standard vga. My guess is that
> this is due to two mutually-cancelling bugs:
Could you please tell me how to reproduce the problem exactly?
I tried several configurations but in all of them windows
seems to keep 800x600 across restarts, and shows display adapter
as cirrus vga.
--
MST
next prev parent reply other threads:[~2009-10-07 19:56 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200910051452.n95EphXY002170@d03av01.boulder.ibm.com>
2009-10-07 8:20 ` [Qemu-commits] [COMMIT c0b1905] qemu/pci: reset device registers on bus reset Avi Kivity
2009-10-07 8:20 ` [Qemu-devel] " Avi Kivity
2009-10-07 8:22 ` Michael S. Tsirkin
2009-10-07 8:22 ` [Qemu-devel] " Michael S. Tsirkin
2009-10-07 8:52 ` Michael S. Tsirkin
2009-10-07 8:52 ` [Qemu-devel] " Michael S. Tsirkin
2009-10-07 19:53 ` Michael S. Tsirkin [this message]
2009-10-07 19:53 ` Michael S. Tsirkin
2009-10-07 20:01 ` Avi Kivity
2009-10-07 20:01 ` [Qemu-devel] " Avi Kivity
2009-10-07 20:07 ` Michael S. Tsirkin
2009-10-07 20:07 ` [Qemu-devel] " Michael S. Tsirkin
2009-10-07 20:12 ` Avi Kivity
2009-10-07 20:12 ` [Qemu-devel] " Avi Kivity
2009-10-07 20:18 ` Michael S. Tsirkin
2009-10-07 20:18 ` [Qemu-devel] " Michael S. Tsirkin
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