Re: [PATCH 05/21] KVM: VMX: Teach EPT violation helper about private mem

From: Paolo Bonzini
Date: Thu Sep 12 2024 - 10:48:22 EST


On Thu, Sep 12, 2024 at 4:43 PM Edgecombe, Rick P
<rick.p.edgecombe@xxxxxxxxx> wrote:
>
> On Thu, 2024-09-12 at 06:58 -0700, Sean Christopherson wrote:
> > > Which clearly says it is checking the *faulting* GPA.
> >
> > I don't think that necessarily solves the problem either, because the reader
> > has
> > to know that the KVM looks at the shared bit.
> >
> > If open coding is undesirable
>
> Yea, I think it's used in enough places that a helper is worth it.
>
> > , maybe a very literal name, e.g. vmx_is_shared_bit_set()?
>
> Sure, thanks.

I didn't see a problem with kvm_is_private_gpa(), but I do prefer
something that has vmx_ or vt_ in the name after seeing it. My
preference would go to something like vt_is_tdx_private_gpa(), but I'm
not going to force one name or another.

Paolo