[PATCH 4/9] kvm/irqchip: allow only multiple irqchip routes per GSI
flat view
STALE3991d
REVIEWED: 1 (0M)
From: Denis V. Lunev <hidden>
Date: 2015-10-16 07:07:48
Subsystem:
kernel virtual machine (kvm), the rest · Maintainers:
Paolo Bonzini, Linus Torvalds
1 review trailer.
From: Andrey Smetanin <redacted> Any other irq routing types (MSI, S390_ADAPTER, upcoming Hyper-V SynIC) map one-to-one to GSI. Signed-off-by: Andrey Smetanin <redacted> Reviewed-by: Roman Kagan <redacted> Signed-off-by: Denis V. Lunev <redacted> CC: Vitaly Kuznetsov <vkuznets@redhat.com> CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Gleb Natapov <gleb@kernel.org> CC: Paolo Bonzini <pbonzini@redhat.com> --- virt/kvm/irqchip.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index 716a1c4..f0b08a2 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c@@ -144,11 +144,11 @@ static int setup_routing_entry(struct kvm_irq_routing_table *rt, /* * Do not allow GSI to be mapped to the same irqchip more than once. - * Allow only one to one mapping between GSI and MSI. + * Allow only one to one mapping between GSI and non-irqchip routing. */ hlist_for_each_entry(ei, &rt->map[ue->gsi], link) - if (ei->type == KVM_IRQ_ROUTING_MSI || - ue->type == KVM_IRQ_ROUTING_MSI || + if (ei->type != KVM_IRQ_ROUTING_IRQCHIP || + ue->type != KVM_IRQ_ROUTING_IRQCHIP || ue->u.irqchip.irqchip == ei->irqchip.irqchip) return r;
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2.1.4