Messages in this thread | | | Date | Thu, 12 Aug 2021 11:14:12 -0700 | Subject | [PATCH v2 0/2] KVM: x86/mmu: Fix a TDP MMU leak and optimize zap all | From | Sean Christopherson <> |
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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.
I'm still somewhat on the fence for patch 2, feel free to drop it.
v2: - Replaced magic number silliness with Paolo's much more clever suggestion. - Elaborated on the benefits of the optimization. - Add Ben's somewhat reluctant review for the optimization.
v1: https://lkml.kernel.org/r/20210812050717.3176478-1-seanjc@google.com
Sean Christopherson (2): KVM: x86/mmu: Don't leak 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 | 35 ++++++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 11 deletions(-)
-- 2.33.0.rc1.237.g0d66db33f3-goog
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