From: David Hildenbrand <dahi@linux.vnet.ibm.com>
Date: Fri, 12 Feb 2016 19:41:56 +0000 (+0100)
Subject: KVM: s390: store cpu id in vcpu->cpu when scheduled in
X-Git-Tag: v4.14-rc1~3659^2^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=01a745ac8b6c5d323a37194c242f7c77f3402469;p=platform%2Fkernel%2Flinux-rpi.git

KVM: s390: store cpu id in vcpu->cpu when scheduled in

By storing the cpu id, we have a way to verify if the current cpu is
owning a VCPU.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 28bd5ea..bd5edb1 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1449,10 +1449,12 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	restore_access_regs(vcpu->run->s.regs.acrs);
 	gmap_enable(vcpu->arch.gmap);
 	atomic_or(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
+	vcpu->cpu = cpu;
 }
 
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 {
+	vcpu->cpu = -1;
 	atomic_andnot(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
 	gmap_disable(vcpu->arch.gmap);