Re: [PATCH v4 11/20] KVM:x86: Save and reload GUEST_SSP to/from SMRAM

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On Mon, Jul 24, 2023, Weijiang Yang wrote:
> 
> On 7/24/2023 5:13 PM, Chao Gao wrote:
> > On Thu, Jul 20, 2023 at 11:03:43PM -0400, Yang Weijiang wrote:
> > > Save GUEST_SSP to SMRAM on SMI and reload it on RSM.
> > > KVM emulates architectural behavior when guest enters/leaves SMM
> > > mode, i.e., save registers to SMRAM at the entry of SMM and reload
> > > them at the exit of SMM. Per SDM, GUEST_SSP is defined as one of
> > To me, GUEST_SSP is confusing here. From QEMU's perspective, it reads/writes
> > the SSP register. People may confuse it with the GUEST_SSP in nVMCS field.
> > I prefer to rename it to MSR_KVM_SSP.
> 
> Hmm, looks a bit, I'll change it, thanks!

Please just say "SSP".  The SMRAM field has nothing to do with KVM's synthetic MSR.



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