KVM: VMX: When using ept, allow the guest to own cr4.pge

We make no use of cr4.pge if ept is enabled, but the guest does (to flush
global mappings, as with vmap()), so give the guest ownership of this bit.
Signed-off-by: NAvi Kivity <avi@redhat.com>

arch/x86/kvm/vmx.c

@@ -2424,6 +2424,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
 
 	vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL);
 	vmx->vcpu.arch.cr4_guest_owned_bits = KVM_CR4_GUEST_OWNED_BITS;
+	if (enable_ept)
+		vmx->vcpu.arch.cr4_guest_owned_bits |= X86_CR4_PGE;
 	vmcs_writel(CR4_GUEST_HOST_MASK, ~vmx->vcpu.arch.cr4_guest_owned_bits);
 
 	tsc_base = vmx->vcpu.kvm->arch.vm_init_tsc;