This includes the MMU parts of "TDX/SNP part 1 of n"[1] while the rest was posted as "KVM: guest_memfd: New hooks and functionality for SEV-SNP and TDX"[2] last week. It includes two basic parts: - Allow non-zero value for non-present SPTE and removed SPTE, so that TDX can set the "suppress VE" bit - Use PFERR_GUEST_ENC_MASK to indicate fault is private. The changes from v1 are: - splitting #VE architectural definitions to their own patch - replace the module parameter to trap #VE with a Kconfig symbol, enabling it by default if PROVE_MMU || DEBUG_KERNEL. - Sean's suggestion that "if we're going to bother plumbing in the error code, then we should use it to do sanity checks" on async page faults. - removing the dead function kvm_mmu_set_mmio_spte_value(), which can be added by TDX patches when they need it Paolo [1] https://patchew.org/linux/20240227232100.478238-1-pbonzini@xxxxxxxxxx/ [2] https://patchew.org/linux/20240404185034.3184582-1-pbonzini@xxxxxxxxxx/ Isaku Yamahata (3): KVM: x86/mmu: Add Suppress VE bit to EPT shadow_mmio_mask/shadow_present_mask KVM: VMX: Introduce test mode related to EPT violation VE KVM: x86/mmu: Pass around full 64-bit error code for KVM page faults Paolo Bonzini (3): KVM, x86: add architectural support code for #VE KVM: x86/mmu: Use PFERR_GUEST_ENC_MASK to indicate fault is private KVM: x86/mmu: check for invalid async page faults involving private memory Sean Christopherson (4): KVM: Allow page-sized MMU caches to be initialized with custom 64-bit values KVM: x86/mmu: Replace hardcoded value 0 for the initial value for SPTE KVM: x86/mmu: Allow non-zero value for non-present SPTE and removed SPTE KVM: x86/mmu: Track shadow MMIO value on a per-VM basis arch/x86/include/asm/kvm_host.h | 5 +++ arch/x86/include/asm/vmx.h | 13 +++++++ arch/x86/kvm/Kconfig | 13 +++++++ arch/x86/kvm/mmu/mmu.c | 50 ++++++++++++++++--------- arch/x86/kvm/mmu/mmu_internal.h | 6 +-- arch/x86/kvm/mmu/mmutrace.h | 2 +- arch/x86/kvm/mmu/paging_tmpl.h | 4 +- arch/x86/kvm/mmu/spte.c | 10 +++-- arch/x86/kvm/mmu/spte.h | 22 +++++++++-- arch/x86/kvm/mmu/tdp_mmu.c | 18 ++++----- arch/x86/kvm/vmx/vmcs.h | 5 +++ arch/x86/kvm/vmx/vmx.c | 65 ++++++++++++++++++++++++++++++++- arch/x86/kvm/vmx/vmx.h | 6 ++- include/linux/kvm_types.h | 1 + virt/kvm/kvm_main.c | 16 +++++++- 15 files changed, 193 insertions(+), 43 deletions(-) -- 2.43.0
