[PATCH 3.12 129/182] KVM: ARM: vgic: Fix sgi dispatch problem

Jiri Slaby
2014-05-13T10:11:57Z

From: Haibin Wang <wanghaibin.wang@huawei.com>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 91021a6c8ffdc55804dab5acdfc7de4f278b9ac3 upstream.

When dispatch SGI(mode == 0), that is the vcpu of VM should send
sgi to the cpu which the target_cpus list.
So, there must add the "break" to branch of case 0.

Signed-off-by: Haibin Wang <wanghaibin.wang@huawei.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
virt/kvm/arm/vgic.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 685fc72fc751..b001dbff0f38 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -751,6 +751,7 @@ static void vgic_dispatch_sgi(struct kvm_vcpu *vcpu, u32 reg)
case 0:
if (!target_cpus)
return;
+ break;

case 1:
target_cpus = ((1 << nrcpus) - 1) & ~(1 << vcpu_id) & 0xff;
--
1.9.3