RE: [PATCH 05/13] KVM: Update IRTE according to guest interrupt configuration changes

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> -----Original Message-----
> From: Paolo Bonzini [mailto:pbonzini@xxxxxxxxxx]
> Sent: Tuesday, November 11, 2014 7:02 PM
> To: Wu, Feng; Alex Williamson
> Cc: gleb@xxxxxxxxxx; dwmw2@xxxxxxxxxxxxx; joro@xxxxxxxxxx;
> tglx@xxxxxxxxxxxxx; mingo@xxxxxxxxxx; hpa@xxxxxxxxx; x86@xxxxxxxxxx;
> kvm@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx;
> linux-kernel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH 05/13] KVM: Update IRTE according to guest interrupt
> configuration changes
> 
> 
> 
> On 11/11/2014 10:20, Wu, Feng wrote:
> > > Since legacy KVM device assignment is effectively deprecated, have you
> > > considered how we might do this with VFIO?  Thanks,
> >
> > I haven't thought about how to enable this in VFIO so far. I think I can continue
> to
> > implement that if needed after this patch set is finished. What do you think of
> this?
> 
> Hi Feng,
> 
> we are not applying new features to legacy KVM device assignment, since
> it is unsafe (it does not honor ACS).
> 
> I and Alex can help you with designing a way to interface VFIO with KVM
> posted interrupts.  Give us a few days to study these patches more, or
> feel free to request comments if you have ideas about it yourself.
> 
> Paolo

Okay, then I will put some efforts on getting familiar with VFIO mechanism. If
You have any questions about these patches, we can discuss it together.

Thanks,
Feng
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