linux-kernel - [PATCH v2 1/6] KVM: x86: don't allow kernel irqchip with split irqchip

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Message-Id: <20161216151006.11776-2-rkrcmar@redhat.com>
Date:   Fri, 16 Dec 2016 16:10:01 +0100
From:   Radim Krčmář <rkrcmar@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>
Subject: [PATCH v2 1/6] KVM: x86: don't allow kernel irqchip with split irqchip

Split irqchip cannot be created after creating the kernel irqchip, but
we forgot to restrict the other way.  This is an API change.

Reviewed-by: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Radim Krčmář <rkrcmar@...hat.com>
---
 v2: r-b Paolo
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1f0d2383f5ee..e670591337af 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3939,7 +3939,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 
 		mutex_lock(&kvm->lock);
 		r = -EEXIST;
-		if (kvm->arch.vpic)
+		if (irqchip_in_kernel(kvm))
 			goto create_irqchip_unlock;
 		r = -EINVAL;
 		if (kvm->created_vcpus)
-- 
2.11.0