KVM: nVMX: Drop unnecessary check on ept caps for execute-only

Drop the call to cpu_has_vmx_ept_execute_only() when calculating which
EPT capabilities will be exposed to L1 for nested EPT.  The resulting
configuration is immediately sanitized by the passed in @ept_caps, and
except for the call from vmx_check_processor_compat(), @ept_caps is the
capabilities that are queried by cpu_has_vmx_ept_execute_only().  For
vmx_check_processor_compat(), KVM *wants* to ignore vmx_capability.ept
so that a divergence in EPT capabilities between CPUs is detected.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index b6719d7..79c7764 100644 (file)
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6133,10 +6133,9 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps)
                        VMX_EPT_PAGE_WALK_4_BIT |
                        VMX_EPT_PAGE_WALK_5_BIT |
                        VMX_EPTP_WB_BIT |
-                       VMX_EPT_INVEPT_BIT;
-               if (cpu_has_vmx_ept_execute_only())
-                       msrs->ept_caps |=
-                               VMX_EPT_EXECUTE_ONLY_BIT;
+                       VMX_EPT_INVEPT_BIT |
+                       VMX_EPT_EXECUTE_ONLY_BIT;
+
                msrs->ept_caps &= ept_caps;
                msrs->ept_caps |= VMX_EPT_EXTENT_GLOBAL_BIT |
                        VMX_EPT_EXTENT_CONTEXT_BIT | VMX_EPT_2MB_PAGE_BIT |