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: v3.12.20~54
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dfcb8cde86ee85d38caaa3140e1b66cf99ca1df8;p=thirdparty%2Fkernel%2Fstable.git

KVM: ARM: vgic: Fix sgi dispatch problem

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>
---

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 685fc72fc751f..b001dbff0f38f 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;