Re: [PATCH v5 27/34] KVM: SVM: Add support for booting APs for an SEV-ES guest

[Paolo Bonzini]

On 04/01/21 18:38, Tom Lendacky wrote:
> > Paolo, is this something along the lines of what you were thinking, or am
> > I off base? I created kvm_emulate_ap_reset_hold() to keep the code
> > consolidated and remove the duplication, but can easily make those 
> > changes
> > local to sev.c. I'd also like to rename SVM_VMGEXIT_AP_HLT_LOOP to
> > SVM_VMGEXIT_AP_RESET_HOLD to more closely match the GHBC document, but
> > that can be done later (if possible, since it is already part of the uapi
> > include file).
>
> Paolo, a quick ping after the holidays as to whether this is the 
> approach you were thinking. I think there are a couple of places in 
> x86.c to update (vcpu_block() and kvm_arch_vcpu_ioctl_get_mpstate()), also.

Yes, this is the basic idea.

Paolo