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authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>2016-02-12 20:41:56 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2016-03-08 13:57:51 +0100
commit01a745ac8b6c5d323a37194c242f7c77f3402469 (patch)
tree104a6cf2afb5b8583ba90120ef4c5135d8c4db2c /arch/s390
parentdce382b6c72717b610741340f05e959764b851b8 (diff)
downloadop-kernel-dev-01a745ac8b6c5d323a37194c242f7c77f3402469.zip
op-kernel-dev-01a745ac8b6c5d323a37194c242f7c77f3402469.tar.gz
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>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kvm/kvm-s390.c2
1 files changed, 2 insertions, 0 deletions
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);
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