From d8346b7d9bab37e6cc712ff1622c65ff98bdfef8 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Thu, 20 Dec 2012 15:32:08 +0100 Subject: KVM: s390: Support for I/O interrupts. Add support for handling I/O interrupts (standard, subchannel-related ones and rudimentary adapter interrupts). The subchannel-identifying parameters are encoded into the interrupt type. I/O interrupts are floating, so they can't be injected on a specific vcpu. Reviewed-by: Alexander Graf Reviewed-by: Marcelo Tosatti Signed-off-by: Cornelia Huck Signed-off-by: Marcelo Tosatti --- Documentation/virtual/kvm/api.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation/virtual') diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index a4df5535996..83bd92b5293 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2069,6 +2069,10 @@ KVM_S390_INT_VIRTIO (vm) - virtio external interrupt; external interrupt 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 +KVM_S390_INT_IO(ai,cssid,ssid,schid) (vm) - compound value to indicate an + I/O interrupt (ai - adapter interrupt; cssid,ssid,schid - subchannel); + I/O interruption parameters in parm (subchannel) and parm64 (intparm, + interruption subclass) Note that the vcpu ioctl is asynchronous to vcpu execution. -- cgit v1.2.3-70-g09d2