Re: [PATCH v6 8/8] KVM: selftests: Add PERF_METRICS and fixed counter 3 tests

[Mi, Dapeng]

On 7/14/2026 1:11 PM, Jim Mattson wrote:
> On Mon, Jul 13, 2026 at 12:12 AM Mi, Dapeng <dapeng1.mi@xxxxxxxxxxxxxxx> wrote:
>
>> rdpmc is the preferable way to read PMU counters since the better
>> performance than rdmsr, and most of current code regardless of kernel or
>> user-space already use rdpmc to read PMC counters. If we set the rdpmc to
>> interception by default, then it may cause extra performance hit.
>>
>> Currently I didn't hear there is any plan to extend the rdpmc to support
>> more types for Intel platforms ...
> Is Intel willing to commit to that?

I'm afraid not. :( 

rdpmc is still possible to be extended to support more types in the future,
but recently we don't see such requirements.