diff options
| author | Sean Christopherson <seanjc@google.com> | 2021-06-22 20:57:07 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-25 01:00:40 +0300 |
| commit | cd6767c334b628cf566db56c778e67f7e6ae2845 (patch) | |
| tree | 6ae85477967b61494dc02a4f503ee21e3d90ba89 /arch/x86/kvm | |
| parent | af098972295aab280b362090aef964d4eb89f63f (diff) | |
| download | linux-cd6767c334b628cf566db56c778e67f7e6ae2845.tar.xz | |
KVM: x86/mmu: Ignore CR0 and CR4 bits in nested EPT MMU role
Do not incorporate CR0/CR4 bits into the role for the nested EPT MMU, as
EPT behavior is not influenced by CR0/CR4. Note, this is the guest_mmu,
(L1's EPT), not nested_mmu (L2's IA32 paging); the nested_mmu does need
CR0/CR4, and is initialized in a separate flow.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-23-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 28bfe18eb416..52e405555cd6 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -4767,8 +4767,10 @@ kvm_calc_shadow_ept_root_page_role(struct kvm_vcpu *vcpu, bool accessed_dirty, role.base.guest_mode = true; role.base.access = ACC_ALL; - role.ext = kvm_calc_mmu_role_ext(vcpu); + /* EPT, and thus nested EPT, does not consume CR0, CR4, nor EFER. */ + role.ext.word = 0; role.ext.execonly = execonly; + role.ext.valid = 1; return role; } |