15 May
2025
15 May
'25
3:04 a.m.
On 5/15/2025 8:12 AM, Sean Christopherson wrote:
On Mon, Mar 24, 2025, Mingwei Zhang wrote:
From: Dapeng Mi dapeng1.mi@linux.intel.com
Add perf_capabilities in kvm_host_values{} structure to record host perf capabilities. KVM needs to know if host supports some PMU capabilities and then decide if passthrough or intercept some PMU MSRs or instruction like rdpmc, e.g. If host supports PERF_METRICES, but guest is configured not to support it, then rdpmc instruction needs to be intercepted.
This is wrong (spoiler alert). This patch can be dropped.
Sean, why? I don't get your point here. Could you please give more information? Thanks.