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| author | Jason J. Herne <jjherne@us.ibm.com> | 2012-10-02 16:25:36 +0200 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-10 19:03:37 -0300 |
| commit | 82a1273713df37375a75d6a700deef70c0d21360 (patch) | |
| tree | b3c526aa40ccd3da81f19ed428e269c2c3743fa9 /arch/s390 | |
| parent | d151f63f20133aef9dbda209faddebcddbfccf31 (diff) | |
| download | linux-82a1273713df37375a75d6a700deef70c0d21360.tar.gz linux-82a1273713df37375a75d6a700deef70c0d21360.tar.bz2 linux-82a1273713df37375a75d6a700deef70c0d21360.zip | |
s390/kvm: Interrupt injection bugfix
EXTERNAL_CALL and EMERGENCY type interrupts need to preserve their interrupt
code parameter when being injected from user space.
Signed-off-by: Jason J. Herne <jjherne@us.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index ff1e2f8ef94a..c30615e605ac 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -629,10 +629,27 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, break; case KVM_S390_SIGP_STOP: case KVM_S390_RESTART: + VCPU_EVENT(vcpu, 3, "inject: type %x", s390int->type); + inti->type = s390int->type; + break; case KVM_S390_INT_EXTERNAL_CALL: + if (s390int->parm & 0xffff0000) { + kfree(inti); + return -EINVAL; + } + VCPU_EVENT(vcpu, 3, "inject: external call source-cpu:%u", + s390int->parm); + inti->type = s390int->type; + inti->extcall.code = s390int->parm; + break; case KVM_S390_INT_EMERGENCY: - VCPU_EVENT(vcpu, 3, "inject: type %x", s390int->type); + if (s390int->parm & 0xffff0000) { + kfree(inti); + return -EINVAL; + } + VCPU_EVENT(vcpu, 3, "inject: emergency %u\n", s390int->parm); inti->type = s390int->type; + inti->emerg.code = s390int->parm; break; case KVM_S390_INT_VIRTIO: case KVM_S390_INT_SERVICE: |