From ca72d970ff9aaf6f7e321ead9d4775c5aa0cdb0b Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Tue, 6 Aug 2013 10:39:55 +0200
Subject: [PATCH] KVM: nEPT: Advertise WB type EPTP
At least WB must be possible.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/vmx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6d53dc33c0b0f..c041023f5d8b1 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2251,8 +2251,8 @@ static __init void nested_vmx_setup_ctls_msrs(void)
if (enable_ept) {
/* nested EPT: emulate EPT also to L1 */
nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT;
- nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT;
- nested_vmx_ept_caps |= VMX_EPT_INVEPT_BIT;
+ nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
+ VMX_EPTP_WB_BIT | VMX_EPT_INVEPT_BIT;
nested_vmx_ept_caps &= vmx_capability.ept;
/*
* Since invept is completely emulated we support both global