linux-kernel - [PATCH 3.13 112/160] KVM: ARM: vgic: Fix sgi dispatch problem

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Date:	Tue, 10 Jun 2014 12:45:52 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Haibin Wang <wanghaibin.wang@...wei.com>,
	Christoffer Dall <christoffer.dall@...aro.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 112/160] KVM: ARM: vgic: Fix sgi dispatch problem

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

------------------

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

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@...wei.com>
Acked-by: Marc Zyngier <marc.zyngier@....com>
Signed-off-by: Christoffer Dall <christoffer.dall@...aro.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 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 685fc72..b001dbf 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;
-- 
1.9.1

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