Re: [PATCH 18/26] KVM: PPC: KVM PV guest stubs

Avi Kivity
2010-06-28T08:33:32Z

On 06/28/2010 11:23 AM, Alexander Graf wrote:
>> You mean even kvm.ko doesn't use privileged instructions?
>>
> It does, but I don't think it's worth speeding those up. There are only a couple. Most of the privileged instructions in PPC KVM are statically compiled into the kernel because we need to guarantee they're in the RMO (first 8MB for the PS3).
>
> Even with the magic page in use, trapping instructions still works exactly as before, so we're only talking about a speed difference.
>
>

Yeah, that also answers my question re pv->nonpv transition.

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