linux-kernel - [PATCH 9/9] KVM: x86: Hide KVM_IRQCHIP_KERNEL behind CONFIG_KVM

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Message-ID: <20251206004311.479939-10-seanjc@google.com>
Date: Fri,  5 Dec 2025 16:43:11 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>, 
	Vitaly Kuznetsov <vkuznets@...hat.com>, David Woodhouse <dwmw2@...radead.org>, Paul Durrant <paul@....org>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 9/9] KVM: x86: Hide KVM_IRQCHIP_KERNEL behind CONFIG_KVM_IOAPIC=y

Enumerate KVM_IRQCHIP_KERNEL if and only if support for an in-kernel I/O
APIC is enabled, as all usage is likewise guarded by CONFIG_KVM_IOAPIC=y.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 arch/x86/include/asm/kvm_host.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 5a3bfa293e8b..8a979c389bc0 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1222,7 +1222,9 @@ struct kvm_xen {
 
 enum kvm_irqchip_mode {
 	KVM_IRQCHIP_NONE,
+#ifdef CONFIG_KVM_IOAPIC
 	KVM_IRQCHIP_KERNEL,       /* created with KVM_CREATE_IRQCHIP */
+#endif
 	KVM_IRQCHIP_SPLIT,        /* created with KVM_CAP_SPLIT_IRQCHIP */
 };
 
-- 
2.52.0.223.gf5cc29aaa4-goog