Re: [PATCH v3 2/5] KVM: MMU: check guest CR3 reserved bits based on its physical address width.

[Yu Zhang]

On 8/25/2017 12:27 AM, Paolo Bonzini wrote:
> On 24/08/2017 17:38, Yu Zhang wrote:
> > > In practice, MAXPHYADDR will never be 59 even because the PKRU bits are
> > > at bits 59..62.
> > Thanks, Paolo.
> > I see. I had made an assumption that MAXPHYADDR shall not exceed the
> > physical one,
> > which is 52 I believe. But I'm not sure there's any place to check this.
> > Maybe we should make sure the vcpu->arch.maxphyaddr will not be greater
> > than the value of the host?
> That's a separate change anyway.  In any case, since currently the
> MAXPHYADDR is not validated, your change to rsvd_bits makes sense.

Thanks, Paolo.
As to this patch series, any change I need do?

BTW, I have written a patch for kvm-unit-test access test, but the test 
failed.
Not sure if my patch is erroneous or due to a simulator error. I'll send 
out the
test patch after it works.:-)

Yu
> Paolo