linux-kernel - [PATCH v2 0/4] KVM: x86: APICv cleanups

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Date:   Thu, 21 Oct 2021 17:49:23 -0700
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, Maxim Levitsky <mlevitsk@...hat.com>
Subject: [PATCH v2 0/4] KVM: x86: APICv cleanups

APICv cleanups and a dissertation on handling concurrent APIC access page
faults and APICv inhibit updates.

I've tested this but haven't hammered the AVIC stuff, I'd appreciate it if
someone with the Hyper-V setup can beat on the AVIC toggling.

Sean Christopherson (4):
  KVM: x86/mmu: Use vCPU's APICv status when handling APIC_ACCESS
    memslot
  KVM: x86: Move SVM's APICv sanity check to common x86
  KVM: x86: Move apicv_active flag from vCPU to in-kernel local APIC
  KVM: x86: Use rw_semaphore for APICv lock to allow vCPU parallelism

 arch/x86/include/asm/kvm_host.h |  3 +-
 arch/x86/kvm/hyperv.c           |  4 +--
 arch/x86/kvm/lapic.c            | 46 ++++++++++---------------
 arch/x86/kvm/lapic.h            |  5 +--
 arch/x86/kvm/mmu/mmu.c          | 29 ++++++++++++++--
 arch/x86/kvm/svm/avic.c         |  2 +-
 arch/x86/kvm/svm/svm.c          |  2 --
 arch/x86/kvm/vmx/vmx.c          |  4 +--
 arch/x86/kvm/x86.c              | 59 ++++++++++++++++++++++-----------
 9 files changed, 93 insertions(+), 61 deletions(-)

-- 
2.33.0.1079.g6e70778dc9-goog