linux-kernel - [PATCH v7 00/12] KVM: x86: Add AMD Guest PerfMonV2 PMU support

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Message-ID: <20230603011058.1038821-1-seanjc@google.com>
Date:   Fri,  2 Jun 2023 18:10:46 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Like Xu <like.xu.linux@...il.com>,
        Like Xu <likexu@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Sandipan Das <sandipan.das@....com>
Subject: [PATCH v7 00/12] KVM: x86: Add AMD Guest PerfMonV2 PMU support

v7 of AMD PMU v2 support.  This includes the global_ovf_ctrl_mask =>
global_status_mask rename that I *just* posted.  I really wanted to apply
v6 and be done with this series, and so sent it out separately, but the
code movement from pmu_intel.c to common x86 was too buggy to do in fixup.

Lightly tested (it's late, it's Friday).

v7:
 - Massage/rewrite changelogs to use preferred style.
 - Actually move PERF_GLOBAL_CTRL and friends out of pmu_intel.c.
 - Move intel_pmu_has_perf_global_ctrl() to common code instead of open
   coding it.
 - Split moving pmc_is_enabled() out to a separate patch.
 - Rebase on the s/global_ovf_ctrl_mask/global_status_mask rename

v6: https://lore.kernel.org/all/20230530060423.32361-1-likexu@tencent.com
v5: https://lore.kernel.org/all/20230410105056.60973-1-likexu@tencent.com
v4: https://lore.kernel.org/kvm/20230214050757.9623-1-likexu@tencent.com

Like Xu (11):
  KVM: x86/pmu: Move reprogram_counters() to pmu.h
  KVM: x86/pmu: Reject userspace attempts to set reserved GLOBAL_STATUS
    bits
  KVM: x86/pmu: Move handling PERF_GLOBAL_CTRL and friends to common x86
  KVM: x86/pmu: Provide Intel PMU's pmc_is_enabled() as generic x86 code
  KVM: x86: Explicitly zero cpuid "0xa" leaf when PMU is disabled
  KVM: x86/pmu: Disable vPMU if the minimum num of counters isn't met
  KVM: x86/pmu: Advertise PERFCTR_CORE iff the min nr of counters is met
  KVM: x86/pmu: Constrain the num of guest counters with kvm_pmu_cap
  KVM: x86/cpuid: Add a KVM-only leaf to redirect AMD PerfMonV2 flag
  KVM: x86/svm/pmu: Add AMD PerfMonV2 support
  KVM: x86/cpuid: Add AMD CPUID ExtPerfMonAndDbg leaf 0x80000022

Sean Christopherson (1):
  KVM: x86/pmu: Rename global_ovf_ctrl_mask to global_status_mask

 arch/x86/include/asm/kvm-x86-pmu-ops.h |  1 -
 arch/x86/include/asm/kvm_host.h        |  2 +-
 arch/x86/kvm/cpuid.c                   | 30 ++++++++-
 arch/x86/kvm/pmu.c                     | 92 +++++++++++++++++++++++---
 arch/x86/kvm/pmu.h                     | 56 ++++++++++++++--
 arch/x86/kvm/reverse_cpuid.h           |  7 ++
 arch/x86/kvm/svm/pmu.c                 | 68 +++++++++++++------
 arch/x86/kvm/svm/svm.c                 | 19 +++++-
 arch/x86/kvm/vmx/nested.c              |  4 +-
 arch/x86/kvm/vmx/pmu_intel.c           | 77 ++++-----------------
 arch/x86/kvm/vmx/vmx.h                 | 12 ----
 arch/x86/kvm/x86.c                     | 10 +++
 12 files changed, 260 insertions(+), 118 deletions(-)


base-commit: b9846a698c9aff4eb2214a06ac83638ad098f33f
-- 
2.41.0.rc2.161.g9c6817b8e7-goog