From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Tue, 6 Aug 2013 08:39:55 +0000 (+0200)
Subject: KVM: nEPT: Advertise WB type EPTP
X-Git-Tag: v3.12-rc1~143^2~25
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ca72d970ff9aaf6f7e321ead9d4775c5aa0cdb0b;p=platform%2Fkernel%2Flinux-stable.git

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>
---

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6d53dc3..c041023 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