Re: [kvm-unit-tests RESEND PATCH] x86: gtests: add new test for vmread/vmwrite flags preservation

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On Mon, Apr 13, 2020 at 4:50 PM Sean Christopherson
<sean.j.christopherson@xxxxxxxxx> wrote:
>
> s/gtest/nVMX for the shortlog.  I thought this was somehow related to the
> Google Test framework, especially coming from a @google.com address.
>
> On Mon, Apr 13, 2020 at 10:24:32AM -0700, Simon Smith wrote:
> > This commit adds new unit tests for commit a4d956b93904 ("KVM: nVMX:
> > vmread should not set rflags to specify success in case of #PF")
> >
> > The two new tests force a vmread and a vmwrite on an unmapped
> > address to cause a #PF and verify that the low byte of %rflags is
> > preserved and that %rip is not advanced.  The cherry-pick fixed a
> > bug in vmread, but we include a test for vmwrite as well for
> > completeness.
>
> I think some of Google's process is bleeding into kvm-unit-tests, I'm pretty
> sure the aforementioned commit wasn't cherry-picked into Paolo's tree.  :-D

I see it in Linus' tree.

> > Before the aforementioned commit, the ALU flags would be incorrectly
> > cleared and %rip would be advanced (for vmread).



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