Re: [kvm-unit-tests PATCH 2/3] x86: Skip running test when pmu is disabled

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Subject: Re: [kvm-unit-tests PATCH 2/3] x86: Skip running test when pmu is disabled
From: Like Xu <like.xu.linux@xxxxxxxxx>
Date: Fri, 10 Jun 2022 07:57:56 +0800
Cc: kvm@xxxxxxxxxxxxxxx, "Paolo Bonzini - Distinguished Engineer (kernel-recipes.org) (KVM HoF)" <pbonzini@xxxxxxxxxx>
In-reply-to: <20220609083916.36658-3-weijiang.yang@intel.com>
References: <20220609083916.36658-1-weijiang.yang@intel.com> <20220609083916.36658-3-weijiang.yang@intel.com>
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.10.0

On 9/6/2022 4:39 pm, Yang Weijiang wrote:

+	perf_cap = rdmsr(MSR_IA32_PERF_CAPABILITIES);


Nit, check the PDCM bit before accessing this MSR.

Follow-Ups:
- Re: [kvm-unit-tests PATCH 2/3] x86: Skip running test when pmu is disabled
  - From: Yang, Weijiang

References:
- [kvm-unit-tests PATCH 0/3] Fix up test failures induced by !enable_pmu
  - From: Yang Weijiang
- [kvm-unit-tests PATCH 2/3] x86: Skip running test when pmu is disabled
  - From: Yang Weijiang

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