Subject: Re: [PATCH v2 3/6] KVM: x86: Fold kvm_arch_sched_in() into kvm_arch_vcpu_load()

From: Sean Christopherson <[email-masked]>
Date: Wed, 29 May 2024 05:54:18 -0700

On Wed, May 29, 2024, Kai Huang wrote:
> I am not familiar with SVM, but it seems the relevant parts are:
> 
> 	control->pause_filter_count;
> 	vmcb_mark_dirty(svm->vmcb, VMCB_INTERCEPTS);
> 
> And it seems they are directly related to programming the hardware, i.e.,
> they got automatically loaded to hardware during VMRUN.

"control" is the control area of the VMCB, i.e. the above pause_filter_count is
equivalent to a VMCS field.

> They need to be updated in the SVM specific code when @ple_window_dirty is
> true in the relevant code path.
> 
> Anyway, even it is feasible and worth to do, we should do in a separate
> patchset.

Ya.