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>,
        David Matlack <dmatlack@google.com>,
        Kai Huang <kai.huang@intel.com>,
        Zhi Wang <zhi.wang.linux@gmail.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH v13 051/113] KVM: VMX: Move setting of EPT MMU masks to common VT-x code
Date:   Sun, 12 Mar 2023 10:56:15 -0700
Message-Id: <ec73810dc0e82741cbe0e362ea84c952dbaa00e6.1678643052.git.isaku.yamahata@intel.com>
In-Reply-To: <cover.1678643051.git.isaku.yamahata@intel.com>
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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 57240d6ab97a..58cbdc5aa2a2 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"
@@ -49,6 +50,14 @@ 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 8f44b29d05e9..23321b2208ae 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -8370,10 +8370,6 @@ __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