linux-kernel - [PATCH 0/2] Use static_call for kvm_x86

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Date:   Mon, 11 Jan 2021 11:57:26 -0500
From:   Jason Baron <jbaron@...mai.com>
To:     pbonzini@...hat.com, kvm@...r.kernel.org
Cc:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        peterz@...radead.org, aarcange@...hat.com, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] Use static_call for kvm_x86_ops

Hi,

Convert kvm_x86_ops to use static_call. Shows good performance
gains for cpuid loop micro-benchmark (resulsts included in patch 2).

Thanks,

-Jason

Jason Baron (2):
  KVM: x86: introduce definitions to support static calls for kvm_x86_ops
  KVM: x86: use static calls to reduce kvm_x86_ops overhead

 arch/x86/include/asm/kvm_host.h |  71 +++++++++-
 arch/x86/kvm/cpuid.c            |   2 +-
 arch/x86/kvm/hyperv.c           |   4 +-
 arch/x86/kvm/irq.c              |   2 +-
 arch/x86/kvm/kvm_cache_regs.h   |  10 +-
 arch/x86/kvm/lapic.c            |  28 ++--
 arch/x86/kvm/mmu.h              |   6 +-
 arch/x86/kvm/mmu/mmu.c          |  12 +-
 arch/x86/kvm/mmu/spte.c         |   2 +-
 arch/x86/kvm/pmu.c              |   2 +-
 arch/x86/kvm/trace.h            |   4 +-
 arch/x86/kvm/x86.c              | 299 ++++++++++++++++++++--------------------
 arch/x86/kvm/x86.h              |   6 +-
 13 files changed, 259 insertions(+), 189 deletions(-)

-- 
2.7.4