On Wed, Oct 08, 2014 at 11:04:28AM +0200, Cornelia Huck wrote:
> On Tue, 07 Oct 2014 18:24:22 -0700
> Andy Lutomirski <l...@amacapital.net> wrote:
> 
> > On 10/07/2014 07:39 AM, Cornelia Huck wrote:
> > > This patchset aims to get us some way to implement virtio-1 compliant
> > > and transitional devices in qemu. Branch available at
> > > 
> > > git://github.com/cohuck/qemu virtio-1
> > > 
> > > I've mainly focused on:
> > > - endianness handling
> > > - extended feature bits
> > > - virtio-ccw new/changed commands
> > 
> > At the risk of some distraction, would it be worth thinking about a
> > solution to the IOMMU bypassing mess as part of this?
> 
> I think that is a whole different issue. virtio-1 is basically done - we
> just need to implement it - while the IOMMU/DMA stuff certainly needs
> more discussion. Therefore, I'd like to defer to the other discussion
> thread here.

I agree, let's do a separate thread for this.
I also think it's up to the hypervisors at this point.
People talked about using ACPI to report IOMMU bypass
to guest.
If that happens, we don't need a feature bit.


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