Re: [Qemu-devel] updated: kvm PCI todo wiki

[Vadim Rozenfeld <vrozenfe@redhat.com>]

On Wed, 2013-08-21 at 14:45 +0200, Hannes Reinecke wrote:
> On 08/21/2013 12:48 PM, Michael S. Tsirkin wrote:
> > Hey guys,
> > I've put up a wiki page with a kvm PCI todo list,
> > mainly to avoid effort duplication, but also in the hope
> > to draw attention to what I think we should try addressing
> > in KVM:
> >
> > http://www.linux-kvm.org/page/PCITodo
> >
> > This page could cover all PCI related activity in KVM,
> > it is very incomplete.
> > We should probably add e.g. IOMMU related stuff.
> >
> > Note: if there's no developer listed for an item,
> > this just means I don't know of anyone actively working
> > on an issue at the moment, not that no one intends to.
> >
> > I would appreciate it if others working on one of the items on this list
> > would add their names so we can communicate better.  If others like this
> > wiki page, please go ahead and add stuff you are working on if any.
> >
> > It would be especially nice to add testing projects.
> >
> > Also, feel free to add links to bugzillas items.
> >
> On a related note, did anyone ever tried to test MSI / MSI-X with a 
> windows guest? I've tried to enable it for virtio but for some reason

MSI-X is a default mode for NetKvm and viostor on Vista and forward.
It must work. Just make sure that CPU family is 0xf or higher, otherwise
Windows will not activate MSI-X.
Vadim.
 
>  
> Windows didn't wanted to enable it. AHCI was even worse; the stock 
> Windows version doesn't support MSI and the Intel one doesn't like our 
> implementation :-(.
> 
> Anyone ever managed to get this to work?
> 
> If not it'd be a good topic for the wiki ...
> 
> Cheers,
> 
> Hannes