[RFC PATCH v5 041/104] KVM: VMX: Move setting of EPT MMU masks to common VT-x code

From: isaku . yamahata
Date: Fri Mar 04 2022 - 15:08:48 EST


From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>

EPT MMU masks are used commonly for VMX and TDX. The value needs to be
initialized in common code before both VMX/TDX-specific initialization
code.

Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
---
arch/x86/kvm/vmx/main.c | 5 +++++
arch/x86/kvm/vmx/vmx.c | 4 ----
2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index 3eb9db6d83ac..51aaafe6b432 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -4,6 +4,7 @@
#include "x86_ops.h"
#include "vmx.h"
#include "nested.h"
+#include "mmu.h"
#include "pmu.h"
#include "tdx.h"

@@ -22,6 +23,10 @@ static __init int vt_hardware_setup(void)

tdx_hardware_setup(&vt_x86_ops);

+ if (enable_ept)
+ kvm_mmu_set_ept_masks(enable_ept_ad_bits,
+ cpu_has_vmx_ept_execute_only());
+
return 0;
}

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 0edeeed0b4c8..07fd892768be 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7817,10 +7817,6 @@ __init int vmx_hardware_setup(void)

set_bit(0, vmx_vpid_bitmap); /* 0 is reserved for host */

- if (enable_ept)
- kvm_mmu_set_ept_masks(enable_ept_ad_bits,
- cpu_has_vmx_ept_execute_only());
-
kvm_configure_mmu(enable_ept, 0, vmx_get_max_tdp_level(),
ept_caps_to_lpage_level(vmx_capability.ept));

--
2.25.1