* [PATCH] KVM: nVMX: Report 2MB EPT pages as supported
@ 2013-10-23 13:35 Jan Kiszka
0 siblings, 0 replies; 3+ messages in thread
From: Jan Kiszka @ 2013-10-23 13:35 UTC (permalink / raw)
To: Paolo Bonzini, Gleb Natapov; +Cc: kvm
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
--
1.8.1.1.298.ge7eed54
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] KVM: nVMX: Report 2MB EPT pages as supported
@ 2013-10-23 13:40 Jan Kiszka
2013-10-28 12:57 ` Paolo Bonzini
0 siblings, 1 reply; 3+ messages in thread
From: Jan Kiszka @ 2013-10-23 13:40 UTC (permalink / raw)
To: Paolo Bonzini, Gleb Natapov; +Cc: kvm
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
--
1.8.1.1.298.ge7eed54
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] KVM: nVMX: Report 2MB EPT pages as supported
2013-10-23 13:40 [PATCH] KVM: nVMX: Report 2MB EPT pages as supported Jan Kiszka
@ 2013-10-28 12:57 ` Paolo Bonzini
0 siblings, 0 replies; 3+ messages in thread
From: Paolo Bonzini @ 2013-10-28 12:57 UTC (permalink / raw)
To: Jan Kiszka; +Cc: Gleb Natapov, kvm
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
^ permalink raw reply [flat|nested] 3+ messages in thread
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