[0/7] KVM: MMU changes for TDX VE support

Message

Paolo Bonzini May 7, 2024, 3:44 p.m. UTC

Allow a non-zero value for non-present SPTE and removed SPTE,
so that TDX can set the "suppress VE" bit.  This is taken from
https://patchew.org/linux/[e-mail]/
with review comments addressed:

- do not dereference an address from the VMCS to include #VE info
  in the dump

- fail hard if the #VE info page cannot be allocated

Paolo

Isaku Yamahata (2):
  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

Paolo Bonzini (1):
  KVM, x86: add architectural support code for #VE

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 |  2 ++
 arch/x86/include/asm/vmx.h      | 13 ++++++++
 arch/x86/kvm/Kconfig            | 13 ++++++++
 arch/x86/kvm/mmu/mmu.c          | 21 ++++++++-----
 arch/x86/kvm/mmu/paging_tmpl.h  | 14 ++++-----
 arch/x86/kvm/mmu/spte.c         | 24 ++++++++-------
 arch/x86/kvm/mmu/spte.h         | 24 ++++++++++++---
 arch/x86/kvm/mmu/tdp_mmu.c      | 18 +++++------
 arch/x86/kvm/vmx/vmcs.h         |  5 ++++
 arch/x86/kvm/vmx/vmx.c          | 53 ++++++++++++++++++++++++++++++++-
 arch/x86/kvm/vmx/vmx.h          |  6 +++-
 include/linux/kvm_types.h       |  1 +
 virt/kvm/kvm_main.c             | 16 ++++++++--
 13 files changed, 167 insertions(+), 43 deletions(-)