linux-kernel - [PATCH 0/2] KVM: x86/mmu: Fix a TDP MMU leak and optimize zap all

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Message-Id: <20210812050717.3176478-1-seanjc@google.com>
Date:   Wed, 11 Aug 2021 22:07:15 -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, Ben Gardon <bgardon@...gle.com>
Subject: [PATCH 0/2] KVM: x86/mmu: Fix a TDP MMU leak and optimize zap all

Patch 1 fixes a leak of root-1 shadow pages, patch 2 is a minor
optimization to the zap all flow that avoids re-reading and re-checking
the root-1 SPTEs after they've been zapped by "zap all" flows.

Sean Christopherson (2):
  KVM: x86/mmu: Don't skip non-leaf SPTEs when zapping all SPTEs
  KVM: x86/mmu: Don't step down in the TDP iterator when zapping all
    SPTEs

 arch/x86/kvm/mmu/tdp_mmu.c | 49 +++++++++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 11 deletions(-)

-- 
2.33.0.rc1.237.g0d66db33f3-goog