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| author | Sean Christopherson <seanjc@google.com> | 2022-07-16 02:00:15 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-07-28 20:22:21 +0300 |
| commit | 38bf9d7bf277bb40c4dceedd2b5eb87d02c36d5b (patch) | |
| tree | dd4b07988900c60d8455c5c777c1e6e9124c182a /arch/x86/kvm/mmu/spte.h | |
| parent | 82ffad2ddf5d7b5b9c14c705fed4a7d5f2ec4c38 (diff) | |
| download | linux-38bf9d7bf277bb40c4dceedd2b5eb87d02c36d5b.tar.xz | |
KVM: x86/mmu: Add shadow mask for effective host MTRR memtype
Add shadow_memtype_mask to capture that EPT needs a non-zero memtype mask
instead of relying on TDP being enabled, as NPT doesn't need a non-zero
mask. This is a glorified nop as kvm_x86_ops.get_mt_mask() returns zero
for NPT anyways.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220715230016.3762909-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/spte.h')
| -rw-r--r-- | arch/x86/kvm/mmu/spte.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h index ba3dccb202bc..cabe3fbb4f39 100644 --- a/arch/x86/kvm/mmu/spte.h +++ b/arch/x86/kvm/mmu/spte.h @@ -147,6 +147,7 @@ extern u64 __read_mostly shadow_mmio_value; extern u64 __read_mostly shadow_mmio_mask; extern u64 __read_mostly shadow_mmio_access_mask; extern u64 __read_mostly shadow_present_mask; +extern u64 __read_mostly shadow_memtype_mask; extern u64 __read_mostly shadow_me_value; extern u64 __read_mostly shadow_me_mask; |