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| author |   Cornelia Huck <cornelia.huck@de.ibm.com> | 2012-10-02 16:25:37 +0200 |
|---|---|---|
| committer |   Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-10 19:03:38 -0300 |
| commit | 416ad65f73f8a68783c98dd734f570e4829d996b (patch) | |
| tree | 7a948464753a9209644041f82a6a7baac4269cd5 /Documentation/virtual | |
| parent | s390/kvm: Interrupt injection bugfix (diff) | |
| download | linux-dev-416ad65f73f8a68783c98dd734f570e4829d996b.tar.xz linux-dev-416ad65f73f8a68783c98dd734f570e4829d996b.zip | |
s390/kvm: Add documentation for KVM_S390_INTERRUPT
Signed-off-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 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index f6ec3a92e621..a46a416810fb 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1997,6 +1997,39 @@ return the hash table order in the parameter. (If the guest is using the virtualized real-mode area (VRMA) facility, the kernel will re-create the VMRA HPTEs on the next KVM_RUN of any vcpu.) +4.77 KVM_S390_INTERRUPT + +Capability: basic +Architectures: s390 +Type: vm ioctl, vcpu ioctl +Parameters: struct kvm_s390_interrupt (in) +Returns: 0 on success, -1 on error + +Allows to inject an interrupt to the guest. Interrupts can be floating +(vm ioctl) or per cpu (vcpu ioctl), depending on the interrupt type. + +Interrupt parameters are passed via kvm_s390_interrupt: + +struct kvm_s390_interrupt { + __u32 type; + __u32 parm; + __u64 parm64; +}; + +type can be one of the following: + +KVM_S390_SIGP_STOP (vcpu) - sigp restart +KVM_S390_PROGRAM_INT (vcpu) - program check; code in parm +KVM_S390_SIGP_SET_PREFIX (vcpu) - sigp set prefix; prefix address in parm +KVM_S390_RESTART (vcpu) - restart +KVM_S390_INT_VIRTIO (vm) - virtio external interrupt; external interrupt + parameters in parm and parm64 +KVM_S390_INT_SERVICE (vm) - sclp external interrupt; sclp parameter in parm +KVM_S390_INT_EMERGENCY (vcpu) - sigp emergency; source cpu in parm +KVM_S390_INT_EXTERNAL_CALL (vcpu) - sigp external call; source cpu in parm + +Note that the vcpu ioctl is asynchronous to vcpu execution. + 5. The kvm_run structure ------------------------ |