Messages in this thread | | | Subject | Re: [PATCH 0/4] KVM: x86/mmu: Bug fixes and cleanups in get_mmio_spte() | From | Paolo Bonzini <> | Date | Mon, 21 Dec 2020 19:26:53 +0100 |
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On 18/12/20 01:31, Sean Christopherson wrote: > Two fixes for bugs that were introduced along with the TDP MMU (though I > strongly suspect only the one reported by Richard, fixed in patch 2/4, is > hittable in practice). Two additional cleanup on top to try and make the > code a bit more readable and shave a few cycles. > > Sean Christopherson (4): > KVM: x86/mmu: Use -1 to flag an undefined spte in get_mmio_spte() > KVM: x86/mmu: Get root level from walkers when retrieving MMIO SPTE > KVM: x86/mmu: Use raw level to index into MMIO walks' sptes array > KVM: x86/mmu: Optimize not-present/MMIO SPTE check in get_mmio_spte() > > arch/x86/kvm/mmu/mmu.c | 53 +++++++++++++++++++++----------------- > arch/x86/kvm/mmu/tdp_mmu.c | 9 ++++--- > arch/x86/kvm/mmu/tdp_mmu.h | 4 ++- > 3 files changed, 39 insertions(+), 27 deletions(-) >
Queued, thanks (and thanks for Ccing stable on the first two already :)).
Paolo
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