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Re: [Xen-devel] [PATCH] x86: Skip check apic_id_limit for Xen

On Thu, Aug 17, 2017 at 09:37:10AM +0800, Lan Tianyu wrote:
> On 2017年08月16日 19:21, Paolo Bonzini wrote:
> > On 16/08/2017 02:22, Lan Tianyu wrote:
> >> Xen vIOMMU device model will be in Xen hypervisor. Skip vIOMMU
> >> check for Xen here when vcpu number is more than 255.
> > 
> > I think you still need to do a check for vIOMMU being enabled.
> Yes, this will be done in the Xen tool stack and Qemu doesn't have such
> knowledge. Operations of create, destroy Xen vIOMMU will be done in the
> Xen tool stack.

Shouldn't we make QEMU have knowledge of the vIOMMU device, then?
Won't QEMU need to know about it eventually?


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