From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Thu, 12 Dec 2013 04:29:11 +0000 (-0800)
Subject: arm/arm64: kvm: Set vcpu->cpu to -1 on vcpu_put
X-Git-Tag: v3.14-rc1~127^2~26^2~4
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=e9b152cb957cb194437f37e79f0f3c9d34fe53d6;p=~emulex%2Finfiniband.git

arm/arm64: kvm: Set vcpu->cpu to -1 on vcpu_put

The arch-generic KVM code expects the cpu field of a vcpu to be -1 if
the vcpu is no longer assigned to a cpu.  This is used for the optimized
make_all_cpus_request path and will be used by the vgic code to check
that no vcpus are running.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index f290b2250ed..b92ff6d3e34 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -342,6 +342,13 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 {
+	/*
+	 * The arch-generic KVM code expects the cpu field of a vcpu to be -1
+	 * if the vcpu is no longer assigned to a cpu.  This is used for the
+	 * optimized make_all_cpus_request path.
+	 */
+	vcpu->cpu = -1;
+
 	kvm_arm_set_running_vcpu(NULL);
 }