From ce03e4f21a33b97c5d20ce597f64c361bb247904 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 7 Dec 2009 12:29:14 +0200 Subject: [PATCH] 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 --- arch/x86/kvm/vmx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 755811a..a7ebaa5 100644 --- a/arch/x86/kvm/vmx.c +++ b/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; -- 1.8.2.3