From: Haibin Wang <wanghaibin.wang@huawei.com>
Date: Thu, 10 Apr 2014 12:14:32 +0000 (+0100)
Subject: KVM: ARM: vgic: Fix sgi dispatch problem
X-Git-Tag: firefly_0821_release~3680^2~36^2~16^2^2~128
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=738a77ae39541495f4d5396ed093bccdebc589f1;p=firefly-linux-kernel-4.4.55.git

KVM: ARM: vgic: Fix sgi dispatch problem

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.

Cc: <stable@vger.kernel.org> # 3.10+
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>
(cherry picked from commit 91021a6c8ffdc55804dab5acdfc7de4f278b9ac3)
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 47b29834a6b6..7e8b44efb739 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -916,6 +916,7 @@ 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;