[PATCH 1/6] KVM: nVMX: we support 1GB EPT pages
From: Paolo Bonzini
Date: Wed Mar 08 2017 - 13:33:40 EST
Large pages at the PDPE level can be emulated by the MMU, so the bit
can be set unconditionally in the EPT capabilities MSR. The same is
true of 2MB EPT pages, though all Intel processors with EPT in practice
support those.
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
arch/x86/kvm/vmx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 283aa8601833..89b74d9bc357 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2764,14 +2764,14 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
vmx->nested.nested_vmx_secondary_ctls_high |=
SECONDARY_EXEC_ENABLE_EPT;
vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
- VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
- VMX_EPT_INVEPT_BIT;
+ VMX_EPTP_WB_BIT | VMX_EPT_INVEPT_BIT;
if (cpu_has_vmx_ept_execute_only())
vmx->nested.nested_vmx_ept_caps |=
VMX_EPT_EXECUTE_ONLY_BIT;
vmx->nested.nested_vmx_ept_caps &= vmx_capability.ept;
vmx->nested.nested_vmx_ept_caps |= VMX_EPT_EXTENT_GLOBAL_BIT |
- VMX_EPT_EXTENT_CONTEXT_BIT;
+ VMX_EPT_EXTENT_CONTEXT_BIT | VMX_EPT_2MB_PAGE_BIT |
+ VMX_EPT_1GB_PAGE_BIT;
} else
vmx->nested.nested_vmx_ept_caps = 0;
--
1.8.3.1