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: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index c81043c671c5a2ca52a6dedd471862d893425bed..74e593e4415d25322434c5c14602086ee1302d5e 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2423,6 +2423,8 @@ 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;