diff options
| author |   Sean Christopherson <seanjc@google.com> | 2024-10-10 19:10:42 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-10-30 14:46:46 -0700 |
| commit | 3835819fb1b37bc736ef78c83f1ef275bc9e6565 (patch) | |
| tree | b6873a6f943c23994513acf0f7c0302e71b29150 | |
| parent | KVM: x86/mmu: Add a dedicated flag to track if A/D bits are globally enabled (diff) | |
| download | wireguard-linux-3835819fb1b37bc736ef78c83f1ef275bc9e6565.tar.xz wireguard-linux-3835819fb1b37bc736ef78c83f1ef275bc9e6565.zip | |
KVM: x86/mmu: Set shadow_accessed_mask for EPT even if A/D bits disabled
Now that KVM doesn't use shadow_accessed_mask to detect if hardware A/D
bits are enabled, set shadow_accessed_mask for EPT even when A/D bits
are disabled in hardware. This will allow using shadow_accessed_mask for
software purposes, e.g. to preserve accessed status in a non-present SPTE
acros NUMA balancing, if something like that is ever desirable.
Link: https://lore.kernel.org/r/20241011021051.1557902-11-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/mmu/spte.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/spte.c b/arch/x86/kvm/mmu/spte.c index c9543625dda2..e352d1821319 100644 --- a/arch/x86/kvm/mmu/spte.c +++ b/arch/x86/kvm/mmu/spte.c @@ -419,7 +419,7 @@ void kvm_mmu_set_ept_masks(bool has_ad_bits, bool has_exec_only) kvm_ad_enabled = has_ad_bits; shadow_user_mask = VMX_EPT_READABLE_MASK; - shadow_accessed_mask = has_ad_bits ? VMX_EPT_ACCESS_BIT : 0ull; + shadow_accessed_mask = VMX_EPT_ACCESS_BIT; shadow_dirty_mask = has_ad_bits ? VMX_EPT_DIRTY_BIT : 0ull; shadow_nx_mask = 0ull; shadow_x_mask = VMX_EPT_EXECUTABLE_MASK; |