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Re: [Qemu-devel] Headsup: windows virtio networking does not work on cur
From: |
Anthony Liguori |
Subject: |
Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git |
Date: |
Sat, 02 Feb 2013 17:07:39 -0600 |
User-agent: |
Notmuch/0.13.2+93~ged93d79 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
Vadim Rozenfeld <address@hidden> writes:
> On Sat, 2013-02-02 at 20:42 +0800, Jason Wang wrote:
>>
>> Have a look at this issue. It was caused by multiqueue patch who adds a
>> new field to virtio_net_cfg. Not sure multiqueue is the root cause since
>> I also find even w/o multiqueue, adding any new field to virtio_net_cfg
>> will break windows guest. Haven't had a clue on this, will continue
>> investigate.
>
> cc'ing Yan, our NDIS guy.
If it helps, mq changes the config size from 8 to 16 bytes. If the
driver was making an assumption about an 8-byte config size, that's
likely what the problem is.
Regards,
Anthony Liguori
> Thank you,
> Vadim.
>> >
>> >>> Regards,
>> >>>
>> >>> Anthony Liguori
>> >>>
>> >>>> commit fed699f9ca6ae8a0fb62803334cf46fa64d1eb91
>> >>>> Author: Jason Wang <address@hidden>
>> >>>> Date: Wed Jan 30 19:12:39 2013 +0800
>> >>>>
>> >>>> virtio-net: multiqueue support
>> >>>>
>> >>>> This patch implements both userspace and vhost support for
>> >>>> multiple queue
>> >>>> virtio-net (VIRTIO_NET_F_MQ). This is done by introducing an
>> >>>> array of
>> >>>> VirtIONetQueue to VirtIONet.
>> >>>>
>> >>>> Signed-off-by: Jason Wang <address@hidden>
>> >>>> Signed-off-by: Anthony Liguori <address@hidden>
>> >>>>
>> >>>> After this commit, win guest (winXP and win7) shows yellow
>> >>>> exclamation sign and is unable to start the device with
>> >>>> code 10.
>> >>>>
>> >>>> FWIW. I'm not sure it is a good idea to make a release with
>> >>>> such a breakage, even rc0.
>> >>>>
>> >>>> Thanks,
>> >>>>
>> >>>> /mjt
>> >
>>
- [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael Tokarev, 2013/02/01
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael Tokarev, 2013/02/01
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Anthony Liguori, 2013/02/01
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael Tokarev, 2013/02/01
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Anthony Liguori, 2013/02/01
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Jason Wang, 2013/02/02
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Vadim Rozenfeld, 2013/02/02
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git,
Anthony Liguori <=
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Yan Vugenfirer, 2013/02/03
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael Tokarev, 2013/02/03
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Anthony Liguori, 2013/02/03
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael S. Tsirkin, 2013/02/03
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Anthony Liguori, 2013/02/03
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael S. Tsirkin, 2013/02/04
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Vadim Rozenfeld, 2013/02/03
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael S. Tsirkin, 2013/02/04
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Yan Vugenfirer, 2013/02/04
- Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git, Michael S. Tsirkin, 2013/02/04