From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vadim Rozenfeld <vrozenfe@redhat.com>
Subject: Re: Problem after update windows VirtIO drivers
Date: Wed, 11 Dec 2013 19:26:07 +1100
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Cc: Alon Levy <alevy@redhat.com>, kvm@vger.kernel.org
To: Carlos Rodrigues <cmar@eurotux.com>
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On Tue, 2013-12-10 at 12:28 +0000, Carlos Rodrigues wrote:
> Hello Vadim,
> 
> I'm using libvirt to help to configure the virtual machines, so the
> output of qemu command through libvirt is:
> 
> # virsh qemu-monitor-command win-test --hmp --cmd 'info pci'
>   Bus  0, device   0, function 0:
>     Host bridge: PCI device 8086:1237
>       id ""
>   Bus  0, device   1, function 0:
>     ISA bridge: PCI device 8086:7000
>       id ""
>   Bus  0, device   1, function 1:
>     IDE controller: PCI device 8086:7010
>       BAR4: I/O at 0xc0c0 [0xc0cf].
>       id ""
>   Bus  0, device   1, function 2:
>     USB controller: PCI device 8086:7020
>       IRQ 5.
>       BAR4: I/O at 0xc040 [0xc05f].
>       id "usb"
>   Bus  0, device   1, function 3:
>     Bridge: PCI device 8086:7113
>       IRQ 9.
>       id ""
>   Bus  0, device   2, function 0:
>     VGA controller: PCI device 1013:00b8
>       BAR0: 32 bit prefetchable memory at 0xfc000000 [0xfdffffff].
>       BAR1: 32 bit memory at 0xfebf0000 [0xfebf0fff].
>       BAR6: 32 bit memory at 0xffffffffffffffff [0x0000fffe].
>       id ""
>   Bus  0, device   3, function 0:
>     Ethernet controller: PCI device 1af4:1000
>       IRQ 0.
>       BAR0: I/O at 0xc060 [0xc07f].
>       BAR1: 32 bit memory at 0xfebf1000 [0xfebf1fff].
>       BAR6: 32 bit memory at 0xffffffffffffffff [0x0000fffe].
>       id "net0"
>   Bus  0, device   4, function 0:
>     Class 1920: PCI device 1af4:1003
>       IRQ 0.
>       BAR0: I/O at 0xc080 [0xc09f].
>       BAR1: 32 bit memory at 0xfebf2000 [0xfebf2fff].
>       id "virtio-serial0"
>   Bus  0, device   5, function 0:
>     SCSI controller: PCI device 1af4:1001
>       IRQ 0.
>       BAR0: I/O at 0xc000 [0xc03f].
>       BAR1: 32 bit memory at 0xfebf3000 [0xfebf3fff].
>       id "virtio-disk0"

Can you please try switching virtio-blk device to ide and 
see if it helps?

Thanks,
Vadim. 

>   Bus  0, device   6, function 0:
>     Class 0255: PCI device 1af4:1002
>       IRQ 5.
>       BAR0: I/O at 0xc0a0 [0xc0bf].
>       id "balloon0"
> 
> Regards,
>