Messages in this thread Patch in this message | | | From | Bandan Das <> | Subject | [PATCH 5/5] nvmx: advertise support for ept execute only | Date | Tue, 28 Jun 2016 00:32:40 -0400 |
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KVM MMU now knows about execute only mappings, so advertise the feature to L1 hypervisors
Signed-off-by: Bandan Das <bsd@redhat.com> --- arch/x86/kvm/vmx.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 417debc..0fe61a3 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2717,6 +2717,9 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx) vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT | VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT | VMX_EPT_INVEPT_BIT; + if (cpu_has_vmx_ept_execute_only()) + vmx->nested.nested_vmx_ept_caps |= + VMX_EPT_EXECUTE_ONLY_BIT; vmx->nested.nested_vmx_ept_caps &= vmx_capability.ept; /* * For nested guests, we don't do anything specific -- 2.5.5
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