diff mbox

KVM: nVMX: Report 2MB EPT pages as supported

Message ID 5267D1CF.5000501@siemens.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kiszka Oct. 23, 2013, 1:40 p.m. UTC
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 <jan.kiszka@siemens.com>
---
 arch/x86/kvm/vmx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Paolo Bonzini Oct. 28, 2013, 12:57 p.m. UTC | #1
Il 23/10/2013 15:40, Jan Kiszka ha scritto:
> 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 <jan.kiszka@siemens.com>
> ---
>  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
> 

Applied to kvm.git queue, thanks.

Paolo
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diff mbox

Patch

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