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MMIO mask fix for AMD memory encryption support

Tom Lendacky kvm lkml 1 version In review

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  1. v1 Latest2 patches 4 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2KVM: x86/mmu: Allow for overriding MMIO SPTE maskarch/x86/include/asm/kvm_host.h arch/x86/kvm/mmu/mmu.c arch/x86/kvm/x86.c+38 -224 replies
2/2KVM: SVM: Implement reserved bit callback to set MMIO SPTE maskarch/x86/kvm/svm.c+42 -00 replies

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Cover letter [PATCH v1 0/2] MMIO mask fix for AMD memory encryption support

This patch series ensures that a valid MMIO SPTE mask can be generated under SVM when memory encryption is enabled.

The patchset includes:
- Add an optional callback to return a reserved bit(s) mask
- Implement the callback in SVM

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Patches based on https://git.kernel.org/pub/scm/virt/kvm/kvm.git next commit:
7d73710d9ca2 ("kvm: vmx: Stop wasting a page for guest_msrs")

Tom Lendacky (2):
KVM: x86/mmu: Allow for overriding MMIO SPTE mask
KVM: SVM: Implement reserved bit callback to set MMIO SPTE mask

 arch/x86/include/asm/kvm_host.h |  4 ++-
 arch/x86/kvm/mmu/mmu.c          | 54 +++++++++++++++++++++------------
 arch/x86/kvm/svm.c              | 42 +++++++++++++++++++++++++
 arch/x86/kvm/x86.c              |  2 +-
 4 files changed, 80 insertions(+), 22 deletions(-)
Signature · 1 line
2.17.1

Read the cover letter in its thread