[060/197] KVM: VMX: Disable unrestricted guest when EPT disabled

[Greg KH]

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Sheng Yang <sheng@xxxxxxxxxxxxxxx>

commit 046d87103addc117f0d397196e85189722d4d7de upstream

Otherwise would cause VMEntry failure when using ept=0 on unrestricted guest
supported processors.

Signed-off-by: Sheng Yang <sheng@xxxxxxxxxxxxxxx>
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
Signed-off-by: Stefan Bader <stefan.bader@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 arch/x86/kvm/vmx.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2302,8 +2302,10 @@ static int vmx_vcpu_setup(struct vcpu_vm
 				~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
 		if (vmx->vpid == 0)
 			exec_control &= ~SECONDARY_EXEC_ENABLE_VPID;
-		if (!enable_ept)
+		if (!enable_ept) {
 			exec_control &= ~SECONDARY_EXEC_ENABLE_EPT;
+			enable_unrestricted_guest = 0;
+		}
 		if (!enable_unrestricted_guest)
 			exec_control &= ~SECONDARY_EXEC_UNRESTRICTED_GUEST;
 		vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);


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