[PATCH 3/6] KVM: SVM: Drop VMXE check from svm_set_cr4()

From: Sean Christopherson
Date: Tue Oct 06 2020 - 21:44:49 EST


Drop svm_set_cr4()'s explicit check CR4.VMXE now that common x86 handles
the check by incorporating VMXE into the CR4 reserved bits, via
kvm_cpu_caps. SVM obviously does not set X86_FEATURE_VMX.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/kvm/svm/svm.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 4f401fc6a05d..f92a19b77da3 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1684,9 +1684,6 @@ int svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
unsigned long host_cr4_mce = cr4_read_shadow() & X86_CR4_MCE;
unsigned long old_cr4 = to_svm(vcpu)->vmcb->save.cr4;

- if (cr4 & X86_CR4_VMXE)
- return 1;
-
if (npt_enabled && ((old_cr4 ^ cr4) & X86_CR4_PGE))
svm_flush_tlb(vcpu);

--
2.28.0