[PATCH v4 00/28] KVM: combined patchset for MBEC/GMET support

Paolo Bonzini
2026-04-28T11:09:54Z

I will send you to v3 (https://lore.kernel.org/kvm/20260408154217.458420-1-pbonzini@redhat.com/)
for the description of the series, and leave a short list of changes:

- patch 15: clear enable_mbec = 0 if enable_ept == 0
- patches 23-27: adjust for rename of nested_ctl to misc_ctl
- patch 24: new
- patch 27: disable svm_get_cpl for SEV-ES/SEV-SNP
- patch 28: fix commit message reference to __nested_svm_check_controls

(patch 24 is the only major bugfix).

Thanks,

Paolo

Jon Kohler (5):
KVM: TDX/VMX: rework EPT_VIOLATION_EXEC_FOR_RING3_LIN into PROT_MASK
KVM: x86/mmu: remove SPTE_PERM_MASK
KVM: x86/mmu: free up bit 10 of PTEs in preparation for MBEC
KVM: nVMX: advertise MBEC to nested guests
KVM: nVMX: allow MBEC with EVMCS

Paolo Bonzini (23):
KVM: x86/mmu: shuffle high bits of SPTEs in preparation for MBEC
KVM: x86/mmu: remove SPTE_EPT_*
KVM: x86/mmu: merge make_spte_{non,}executable
KVM: x86/mmu: rename and clarify BYTE_MASK
KVM: x86/mmu: introduce ACC_READ_MASK
KVM: x86/mmu: separate more EPT/non-EPT permission_fault()
KVM: x86/mmu: pass PFERR_GUEST_PAGE/FINAL_MASK to kvm_translate_gpa
KVM: x86/mmu: pass pte_access for final nGPA->GPA walk
KVM: x86: make translate_nested_gpa vendor-specific
KVM: x86/mmu: split XS/XU bits for EPT
KVM: x86/mmu: move cr4_smep to base role
KVM: VMX: enable use of MBEC
KVM: nVMX: pass advanced EPT violation vmexit info to guest
KVM: nVMX: pass PFERR_USER_MASK to MMU on EPT violations
KVM: x86/mmu: add support for MBEC to EPT page table walks
KVM: x86/mmu: propagate access mask from root pages down
KVM: x86/mmu: introduce cpu_role bit for availability of PFEC.I/D
KVM: SVM: add GMET bit definitions
KVM: x86/mmu: set CR0.WP=1 for shadow NPT MMU
KVM: x86/mmu: add support for GMET to NPT page table walks
KVM: SVM: enable GMET and set it in MMU role
KVM: SVM: work around errata 1218
KVM: nSVM: enable GMET for guests

Documentation/virt/kvm/x86/mmu.rst | 10 +-
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/include/asm/kvm-x86-ops.h | 1 +
arch/x86/include/asm/kvm_host.h | 48 ++++++---
arch/x86/include/asm/svm.h | 1 +
arch/x86/include/asm/vmx.h | 14 ++-
arch/x86/kvm/hyperv.c | 4 +-
arch/x86/kvm/mmu.h | 30 ++++--
arch/x86/kvm/mmu/mmu.c | 168 ++++++++++++++++++++---------
arch/x86/kvm/mmu/mmutrace.h | 19 ++--
arch/x86/kvm/mmu/paging_tmpl.h | 73 ++++++++-----
arch/x86/kvm/mmu/spte.c | 74 +++++++------
arch/x86/kvm/mmu/spte.h | 70 ++++++------
arch/x86/kvm/mmu/tdp_mmu.c | 6 +-
arch/x86/kvm/svm/nested.c | 37 ++++++-
arch/x86/kvm/svm/svm.c | 31 ++++++
arch/x86/kvm/svm/svm.h | 1 +
arch/x86/kvm/vmx/capabilities.h | 12 ++-
arch/x86/kvm/vmx/common.h | 20 ++--
arch/x86/kvm/vmx/hyperv_evmcs.h | 1 +
arch/x86/kvm/vmx/main.c | 9 ++
arch/x86/kvm/vmx/nested.c | 46 +++++++-
arch/x86/kvm/vmx/tdx.c | 2 +-
arch/x86/kvm/vmx/vmx.c | 27 ++++-
arch/x86/kvm/vmx/vmx.h | 1 +
arch/x86/kvm/vmx/x86_ops.h | 1 +
arch/x86/kvm/x86.c | 18 +---
27 files changed, 505 insertions(+), 220 deletions(-)

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2.52.0