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From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] KVM: VMX: Move bus lock handler from main.c => common.h
Date: Mon, 21 Sep 2026 17:01:52 -0700	[thread overview]
Message-ID: <20260922000152.1113202-1-seanjc@google.com> (raw)

Move the bus lock VM-Exit handler, which is basically a one-liner, from
main.c to vmx.h now that to_vt() is usable in common.h.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---

This applies on top of kvm-x86/next + Xiayao's series.  I.e. actually applying
it will be painful for anyone but me at this point, but I'm really just posting
for posterity.

 arch/x86/kvm/vmx/common.h | 11 ++++++++++-
 arch/x86/kvm/vmx/main.c   | 11 -----------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/arch/x86/kvm/vmx/common.h b/arch/x86/kvm/vmx/common.h
index e22c159c3b84..b2905335a2d2 100644
--- a/arch/x86/kvm/vmx/common.h
+++ b/arch/x86/kvm/vmx/common.h
@@ -254,6 +254,15 @@ static inline int __vt_handle_notify(struct kvm_vcpu *vcpu,
 	return 1;
 }
 
-int vt_handle_bus_lock_vmexit(struct kvm_vcpu *vcpu);
+static inline int vt_handle_bus_lock_vmexit(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * Hardware may or may not set the BUS_LOCK_DETECTED flag on BUS_LOCK
+	 * VM-Exits. Unconditionally set the flag here and leave the handling
+	 * to .handle_exit() callback.
+	 */
+	to_vt(vcpu)->exit_reason.bus_lock_detected = true;
+	return 1;
+}
 
 #endif /* __KVM_X86_VMX_COMMON_H */
diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index c11732cfadf0..2985742e20f1 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -872,17 +872,6 @@ static int vt_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn,
 #define vt_op_tdx_only(name) NULL
 #endif /* CONFIG_KVM_INTEL_TDX */
 
-int vt_handle_bus_lock_vmexit(struct kvm_vcpu *vcpu)
-{
-	/*
-	 * Hardware may or may not set the BUS_LOCK_DETECTED flag on BUS_LOCK
-	 * VM-Exits. Unconditionally set the flag here and leave the handling
-	 * to .handle_exit() callback.
-	 */
-	to_vt(vcpu)->exit_reason.bus_lock_detected = true;
-	return 1;
-}
-
 noinstr void vt_handle_nmi(struct kvm_vcpu *vcpu)
 {
 	if ((u16)vt_get_exit_reason(vcpu).basic != EXIT_REASON_EXCEPTION_NMI ||

base-commit: e1d8e13452eea815042f79244bb649536e3689f5
-- 
2.55.0.1082.g2b9226bbc0-goog


             reply	other threads:[~2026-09-22  0:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-22  0:01 Sean Christopherson [this message]
2026-09-22  2:35 ` Xiaoyao Li
2026-09-22 13:36   ` Sean Christopherson
2026-09-22  3:29 ` Binbin Wu

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