linux-kernel - Re: [KVM] cf8e55fe50: kvm-unit-tests.msr.fail

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Date:   Fri, 8 Jul 2022 14:56:42 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     kernel test robot <oliver.sang@...el.com>
Cc:     Like Xu <likexu@...cent.com>, Paolo Bonzini <pbonzini@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Luwei Kang <luwei.kang@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        kvm@...r.kernel.org, lkp@...ts.01.org, lkp@...el.com
Subject: Re: [KVM]  cf8e55fe50: kvm-unit-tests.msr.fail

On Fri, Jul 08, 2022, kernel test robot wrote:
> 
> 
> Greeting,
> 
> FYI, we noticed the following commit (built with gcc-11):
> 
> commit: cf8e55fe50df0c0292b389a165daa81193cd39d1 ("KVM: x86/pmu: Expose CPUIDs feature bits PDCM, DS, DTES64")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> 
> in testcase: kvm-unit-tests
> version: kvm-unit-tests-x86_64-8719e83-1_20220518

kvm-unit-tests needs to be updated, commit bab19ca ("x86: do not overwrite bits
7, 11 and 12 of MSR_IA32_MISC_ENABLE") fixes a test bug where it attempts to toggle
read-only bits.