Received-SPF: pass (google.com: domain of linux-kernel+bounces-34372-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1;
From: isaku.yamahata@intel.com
To: kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: isaku.yamahata@intel.com,
	isaku.yamahata@gmail.com,
	Paolo Bonzini <pbonzini@redhat.com>,
	erdemaktas@google.com,
	Sean Christopherson <seanjc@google.com>,
	Sagi Shahar <sagis@google.com>,
	Kai Huang <kai.huang@intel.com>,
	chen.bo@intel.com,
	hang.yuan@intel.com,
	tina.zhang@intel.com,
	Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH v18 055/121] KVM: VMX: Move setting of EPT MMU masks to common VT-x code
Date: Mon, 22 Jan 2024 15:53:31 -0800
Message-Id: <ded872753cfd4abdd7eb842b74c263539cb8f159.1705965635.git.isaku.yamahata@intel.com>
In-Reply-To: <cover.1705965634.git.isaku.yamahata@intel.com>
References: <cover.1705965634.git.isaku.yamahata@intel.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

From: Sean Christopherson <sean.j.christopherson@intel.com>

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@intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
---
 arch/x86/kvm/vmx/main.c | 9 +++++++++
 arch/x86/kvm/vmx/vmx.c  | 4 ----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index de4b6f924a36..8059b44ed159 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"
 #include "tdx_arch.h"
@@ -54,6 +55,14 @@ static __init int vt_hardware_setup(void)
 	if (ret)
 		return ret;
 
+	/*
+	 * As kvm_mmu_set_ept_masks() updates enable_mmio_caching, call it
+	 * before checking enable_mmio_caching.
+	 */
+	if (enable_ept)
+		kvm_mmu_set_ept_masks(enable_ept_ad_bits,
+				      cpu_has_vmx_ept_execute_only());
+
 	enable_tdx = enable_tdx && !tdx_hardware_setup(&vt_x86_ops);
 
 	return 0;
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 185e22a2e101..c2da39ceb02b 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -8452,10 +8452,6 @@ __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());
-
 	/*
 	 * Setup shadow_me_value/shadow_me_mask to include MKTME KeyID
 	 * bits to shadow_zero_check.
-- 
2.25.1