From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: [PATCH] KVM: nVMX: Report 2MB EPT pages as supported Date: Wed, 23 Oct 2013 14:40:31 +0100 Message-ID: <5267D1CF.5000501@siemens.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: kvm To: Paolo Bonzini , Gleb Natapov Return-path: Received: from david.siemens.de ([192.35.17.14]:15869 "EHLO david.siemens.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750820Ab3JWNkj (ORCPT ); Wed, 23 Oct 2013 09:40:39 -0400 Sender: kvm-owner@vger.kernel.org List-ID: As long as the hardware provides us 2MB EPT pages, we can also expose them to the guest because our shadow EPT code already supports this feature. Signed-off-by: Jan Kiszka --- arch/x86/kvm/vmx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 06fd762..feef3a1 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2261,7 +2261,8 @@ static __init void nested_vmx_setup_ctls_msrs(void) /* 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 | - VMX_EPTP_WB_BIT | VMX_EPT_INVEPT_BIT; + VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT | + VMX_EPT_INVEPT_BIT; nested_vmx_ept_caps &= vmx_capability.ept; /* * Since invept is completely emulated we support both global -- 1.8.1.1.298.ge7eed54