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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-10-14 09:44:55 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-23 13:25:34 +0100 |
| commit | a3a9c59a683658d881aa2695be2aa875598f2712 (patch) | |
| tree | 0447c759dddc09f459a07c73e74db4b099d02b28 /arch/s390/kvm/interrupt.c | |
| parent | 9a022067ad75b117f1c1e5cbf6a592022cf0a749 (diff) | |
| download | op-kernel-dev-a3a9c59a683658d881aa2695be2aa875598f2712.zip op-kernel-dev-a3a9c59a683658d881aa2695be2aa875598f2712.tar.gz | |
KVM: s390: SIGP SET PREFIX cleanup
This patch cleanes up the the SIGP SET PREFIX code.
A SIGP SET PREFIX irq may only be injected if the target vcpu is
stopped. Let's move the checking code into the injection code and
return -EBUSY if the target vcpu is not stopped.
Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/interrupt.c')
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index f753c0b..1ba9176 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -1026,6 +1026,9 @@ static int __inject_set_prefix(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq) trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_SIGP_SET_PREFIX, prefix->address, 0, 2); + if (!is_vcpu_stopped(vcpu)) + return -EBUSY; + *prefix = irq->u.prefix; set_bit(IRQ_PEND_SET_PREFIX, &li->pending_irqs); return 0; |
