linux-kernel - [PATCH v3.1 0/4] KVM: x86: Use static calls to reduce kvm_pmu

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Message-Id: <20220329235054.3534728-1-seanjc@google.com>
Date:   Tue, 29 Mar 2022 23:50:50 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Like Xu <likexu@...cent.com>
Subject: [PATCH v3.1 0/4] KVM: x86: Use static calls to reduce kvm_pmu_ops overhead

This is a minor iteration on Like's v3 to allow kvm_pmu_ops (the global
variable, not the struct) be static.  I ran the PMU unit tests and compiled,
but otherwise it's untested.  Strongly recommend waiting for Like to give
a thumbs up before applying :-)

[*] https://lore.kernel.org/all/20220307115920.51099-1-likexu@tencent.com

Like Xu (4):
  KVM: x86: Move kvm_ops_static_call_update() to x86.c
  KVM: x86: Copy kvm_pmu_ops by value to eliminate layer of indirection
  KVM: x86: Move .pmu_ops to kvm_x86_init_ops and tag as __initdata
  KVM: x86: Use static calls to reduce kvm_pmu_ops overhead

 arch/x86/include/asm/kvm-x86-pmu-ops.h | 31 ++++++++++++
 arch/x86/include/asm/kvm_host.h        | 17 +------
 arch/x86/kvm/pmu.c                     | 66 ++++++++++++++++++--------
 arch/x86/kvm/pmu.h                     |  7 +--
 arch/x86/kvm/svm/pmu.c                 |  2 +-
 arch/x86/kvm/svm/svm.c                 |  2 +-
 arch/x86/kvm/vmx/pmu_intel.c           |  2 +-
 arch/x86/kvm/vmx/vmx.c                 |  2 +-
 arch/x86/kvm/x86.c                     | 21 +++++++-
 9 files changed, 102 insertions(+), 48 deletions(-)
 create mode 100644 arch/x86/include/asm/kvm-x86-pmu-ops.h


base-commit: 19164ad08bf668bca4f4bfbaacaa0a47c1b737a6
-- 
2.35.1.1021.g381101b075-goog