From: Paolo Bonzini <pbonzini@redhat.com>
To: Maxim Levitsky <mlevitsk@redhat.com>, Like Xu <like.xu.linux@gmail.com>
Cc: Sean Christopherson <seanjc@google.com>,
Wanpeng Li <wanpengli@tencent.com>,
Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Jim Mattson <jmattson@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: Re: [PATCH RESEND v12 00/17] KVM: x86/pmu: Add basic support to enable guest PEBS via DS
Date: Wed, 25 May 2022 16:13:38 +0200 [thread overview]
Message-ID: <eb34985a-3f21-f4d7-f25d-28f24c9794be@redhat.com> (raw)
In-Reply-To: <48b495c5610d25596a268c71b627b2e2136ac0bd.camel@redhat.com>
On 5/25/22 16:12, Maxim Levitsky wrote:
> FYI, this patch series also break 'msr' test in kvm-unit tests.
> (kvm/queue of today, and master of the kvm-unit-tests repo)
>
> The test tries to set the MSR_IA32_MISC_ENABLE to 0x400c51889 and gets #GP.
>
>
> Commenting this out, gets rid of #GP, but test still fails with unexpected result
>
> if (!msr_info->host_initiated &&
> ((old_val ^ data) & MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL))
> return 1;
>
>
>
>
> It is very possible that the test is broken, I'll check this later.
Yes, for that I've sent a patch already:
https://lore.kernel.org/kvm/20220520183207.7952-1-pbonzini@redhat.com/
Paolo
next prev parent reply other threads:[~2022-05-25 14:13 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-11 10:19 [PATCH RESEND v12 00/17] KVM: x86/pmu: Add basic support to enable guest PEBS via DS Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 01/17] perf/x86/intel: Add EPT-Friendly PEBS for Ice Lake Server Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 02/17] perf/x86/intel: Handle guest PEBS overflow PMI for KVM guest Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 03/17] perf/x86/core: Pass "struct kvm_pmu *" to determine the guest values Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 04/17] KVM: x86/pmu: Set MSR_IA32_MISC_ENABLE_EMON bit when vPMU is enabled Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 05/17] KVM: x86/pmu: Introduce the ctrl_mask value for fixed counter Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 06/17] x86/perf/core: Add pebs_capable to store valid PEBS_COUNTER_MASK value Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 07/17] KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 08/17] KVM: x86/pmu: Reprogram PEBS event to emulate guest PEBS counter Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 09/17] KVM: x86/pmu: Adjust precise_ip to emulate Ice Lake guest PDIR counter Like Xu
2022-05-13 8:57 ` Like Xu
2022-05-13 9:26 ` [PATCH v13 " Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 10/17] KVM: x86/pmu: Add IA32_DS_AREA MSR emulation to support guest DS Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 11/17] KVM: x86/pmu: Add PEBS_DATA_CFG MSR emulation to support adaptive PEBS Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 12/17] KVM: x86: Set PEBS_UNAVAIL in IA32_MISC_ENABLE when PEBS is enabled Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 13/17] KVM: x86/pmu: Move pmc_speculative_in_use() to arch/x86/kvm/pmu.h Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 14/17] KVM: x86/pmu: Disable guest PEBS temporarily in two rare situations Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 15/17] KVM: x86/pmu: Add kvm_pmu_cap to optimize perf_get_x86_pmu_capability Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 16/17] KVM: x86/cpuid: Refactor host/guest CPU model consistency check Like Xu
2022-04-11 10:19 ` [PATCH RESEND v12 17/17] KVM: x86/pmu: Expose CPUIDs feature bits PDCM, DS, DTES64 Like Xu
2022-05-10 16:55 ` [PATCH RESEND v12 00/17] KVM: x86/pmu: Add basic support to enable guest PEBS via DS Paolo Bonzini
2022-05-19 12:14 ` Vitaly Kuznetsov
2022-05-19 13:31 ` Like Xu
2022-05-19 13:50 ` Like Xu
2022-05-19 14:46 ` Vitaly Kuznetsov
2022-05-25 7:56 ` Like Xu
2022-05-25 8:14 ` Paolo Bonzini
2022-05-25 8:32 ` Like Xu
2022-05-25 14:12 ` Maxim Levitsky
2022-05-25 14:13 ` Paolo Bonzini [this message]
2022-05-25 14:14 ` Maxim Levitsky
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