diff mbox

[1/7] KVM: nEPT: Advertise WB type EPTP

Message ID e384f0e43dcb83eb2dba3984ec50d6655f052c72.1375638539.git.jan.kiszka@web.de (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kiszka Aug. 4, 2013, 5:49 p.m. UTC 
From: Jan Kiszka <jan.kiszka@siemens.com>

At least WB must be possible.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 arch/x86/kvm/vmx.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Comments

Gleb Natapov Aug. 5, 2013, 1:12 p.m. UTC | #1 
On Sun, Aug 04, 2013 at 07:49:00PM +0200, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> At least WB must be possible.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>

> ---
>  arch/x86/kvm/vmx.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
> index e51bf4a..53050a0 100644
> --- a/arch/x86/kvm/vmx.c
> +++ b/arch/x86/kvm/vmx.c
> @@ -2250,8 +2250,8 @@ 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
> -- 
> 1.7.3.4

--
			Gleb.
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diff mbox

Patch

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index e51bf4a..53050a0 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2250,8 +2250,8 @@  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