Re: [PATCH 11/11] KVM: SVM: Don't call instruction emulator forinvd and wbinvd

[Joerg Roedel]

On Sun, Feb 21, 2010 at 02:00:29PM +0200, Avi Kivity wrote:
> On 02/21/2010 01:37 PM, Joerg Roedel wrote:
>> Weird. For some reason the Windows 7 XP emulation was executing wbinvd
>> which caused an nested intercept for the host level and the rip was not
>> advanced. So the nested guest did not advance and just produces wbinvd
>> intercepts all the time.
>>    
>
> Has the guest enabled wbinvd interception?  Perhaps not, so kvm has to  
> emulate wbinvd in the nested guest context, which is likely the only  
> case that we're called to do this.  So the problem might be in emulating  
> within the nested guest.

Probably, but this was running on nested-shadow where gva_to_gpa is
expected to work even when the vcpu is running in nested mode. I'll
check this again.

	Joerg

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