Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-13 Thread Andreas Färber
Am 13.09.2013 14:31, schrieb Michael S. Tsirkin: > On Fri, Sep 13, 2013 at 03:22:01PM +0300, Michael S. Tsirkin wrote: >> On Fri, Sep 13, 2013 at 01:14:43AM -0300, Eduardo Habkost wrote: >>> On Fri, Sep 13, 2013 at 12:03:40AM +0300, Michael S. Tsirkin wrote: On Thu, Sep 12, 2013 at 04:45:01PM

Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-13 Thread Michael S. Tsirkin
On Fri, Sep 13, 2013 at 03:22:01PM +0300, Michael S. Tsirkin wrote: > On Fri, Sep 13, 2013 at 01:14:43AM -0300, Eduardo Habkost wrote: > > On Fri, Sep 13, 2013 at 12:03:40AM +0300, Michael S. Tsirkin wrote: > > > On Thu, Sep 12, 2013 at 04:45:01PM -0300, Eduardo Habkost wrote: > > > > On Thu, Sep 1

Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-13 Thread Michael S. Tsirkin
On Fri, Sep 13, 2013 at 01:14:43AM -0300, Eduardo Habkost wrote: > On Fri, Sep 13, 2013 at 12:03:40AM +0300, Michael S. Tsirkin wrote: > > On Thu, Sep 12, 2013 at 04:45:01PM -0300, Eduardo Habkost wrote: > > > On Thu, Sep 12, 2013 at 11:42:17AM +0300, Michael S. Tsirkin wrote: > > > > On Thu, Sep 1

Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-12 Thread Eduardo Habkost
On Fri, Sep 13, 2013 at 12:03:40AM +0300, Michael S. Tsirkin wrote: > On Thu, Sep 12, 2013 at 04:45:01PM -0300, Eduardo Habkost wrote: > > On Thu, Sep 12, 2013 at 11:42:17AM +0300, Michael S. Tsirkin wrote: > > > On Thu, Sep 12, 2013 at 11:23:46AM +0300, Gal Hammer wrote: > > > > Hi, > > > > > > >

Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-12 Thread Michael S. Tsirkin
On Thu, Sep 12, 2013 at 04:45:01PM -0300, Eduardo Habkost wrote: > On Thu, Sep 12, 2013 at 11:42:17AM +0300, Michael S. Tsirkin wrote: > > On Thu, Sep 12, 2013 at 11:23:46AM +0300, Gal Hammer wrote: > > > Hi, > > > > > > I've notice that the virtio-serial Windows' driver doesn't use MSI-X > > > ve

Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-12 Thread Eduardo Habkost
On Thu, Sep 12, 2013 at 11:42:17AM +0300, Michael S. Tsirkin wrote: > On Thu, Sep 12, 2013 at 11:23:46AM +0300, Gal Hammer wrote: > > Hi, > > > > I've notice that the virtio-serial Windows' driver doesn't use MSI-X > > vectors when running using upstream qemu or > > qemu-kvm-1.2.2-13.fc18.x86_64.

Re: [Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-12 Thread Michael S. Tsirkin
On Thu, Sep 12, 2013 at 11:23:46AM +0300, Gal Hammer wrote: > Hi, > > I've notice that the virtio-serial Windows' driver doesn't use MSI-X > vectors when running using upstream qemu or > qemu-kvm-1.2.2-13.fc18.x86_64. The same VM works with MSI-X when > using qemu-kvm-0.12.1.2-2.355.el6.x86_64. >

[Qemu-devel] MSI-X doesn't work when running Windows as guest

2013-09-12 Thread Gal Hammer
Hi, I've notice that the virtio-serial Windows' driver doesn't use MSI-X vectors when running using upstream qemu or qemu-kvm-1.2.2-13.fc18.x86_64. The same VM works with MSI-X when using qemu-kvm-0.12.1.2-2.355.el6.x86_64. From what I saw, Windows is trying to enable MSI-X by writing a 2 by