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authorCornelia Huck <cornelia.huck@de.ibm.com>2012-12-20 09:32:09 -0500
committerMarcelo Tosatti <mtosatti@redhat.com>2013-01-07 16:53:41 -0500
commit48a3e950f4cee6a345ffbe9baf599f1e9a54c479 (patch)
tree3e60015a025df89b28df12c6470babbfb566e766 /Documentation/virtual/kvm
parentd8346b7d9bab37e6cc712ff1622c65ff98bdfef8 (diff)
KVM: s390: Add support for machine checks.
Add support for injecting machine checks (only repressible conditions for now). This is a bit more involved than I/O interrupts, for these reasons: - Machine checks come in both floating and cpu varieties. - We don't have a bit for machine checks enabling, but have to use a roundabout approach with trapping PSW changing instructions and watching for opened machine checks. Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'Documentation/virtual/kvm')
-rw-r--r--Documentation/virtual/kvm/api.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 83bd92b52936..8a0de309932f 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2073,6 +2073,10 @@ KVM_S390_INT_IO(ai,cssid,ssid,schid) (vm) - compound value to indicate an
2073 I/O interrupt (ai - adapter interrupt; cssid,ssid,schid - subchannel); 2073 I/O interrupt (ai - adapter interrupt; cssid,ssid,schid - subchannel);
2074 I/O interruption parameters in parm (subchannel) and parm64 (intparm, 2074 I/O interruption parameters in parm (subchannel) and parm64 (intparm,
2075 interruption subclass) 2075 interruption subclass)
2076KVM_S390_MCHK (vm, vcpu) - machine check interrupt; cr 14 bits in parm,
2077 machine check interrupt code in parm64 (note that
2078 machine checks needing further payload are not
2079 supported by this ioctl)
2076 2080
2077Note that the vcpu ioctl is asynchronous to vcpu execution. 2081Note that the vcpu ioctl is asynchronous to vcpu execution.
2078 2082