KVM: nVMX: Report 2MB EPT pages as supported
PATCH 1/1 KVM: nVMX: Report 2MB EPT pages as supported
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 <[email protected]>
--- arch/x86/kvm/vmx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
arch/x86/kvm/vmx.c +2 -1
@@ -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
Signature · 1 line
1.8.1.1.298.ge7eed54
Il 23/10/2013 15:40, Jan Kiszka ha scritto:
Quoted 15 lines
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 <[email protected]>--- arch/x86/kvm/vmx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)arch/x86/kvm/vmx.c +0
-0
arch/x86/kvm/vmx.c static __init void nested_vmx_setup_ctls_msrs(void) · line 2268
Quoted 9 lines
arch/x86/kvm/vmx.c +2
-1@@ -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