Re: [PATCH v3 3/6] KVM: x86/vPMU: Rename pmu_ops callbacks from msr_idx to rdpmc_idx

From: Jim Mattson
Date: Wed Oct 23 2019 - 13:55:21 EST


On Tue, Oct 22, 2019 at 1:12 AM Like Xu <like.xu@xxxxxxxxxxxxxxx> wrote:
>
> The leagcy pmu_ops->msr_idx_to_pmc is only called in kvm_pmu_rdpmc, so
> this name is restrictedly limited to rdpmc_idx which could be indexed
> exactly to a kvm_pmc. Let's restrict its semantic by renaming the
> existing msr_idx_to_pmc to rdpmc_idx_to_pmc, and is_valid_msr_idx to
> is_valid_rdpmc_idx (likewise for kvm_pmu_is_valid_msr_idx).
>
> Suggested-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Signed-off-by: Like Xu <like.xu@xxxxxxxxxxxxxxx>
Nit: The ECX argument to RDPMC is more than just an index (in fact,
intel_is_valid_msr_idx() extracts the index from the provided ECX
value), so I'd suggest s/rdpmc_idx/rdpmc_ecx/g.

Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>