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-rw-r--r--Documentation/virtual/kvm/devices/s390_flic.txt12
1 files changed, 9 insertions, 3 deletions
diff --git a/Documentation/virtual/kvm/devices/s390_flic.txt b/Documentation/virtual/kvm/devices/s390_flic.txt
index 6b0e115301c8..e8ee3b6edb05 100644
--- a/Documentation/virtual/kvm/devices/s390_flic.txt
+++ b/Documentation/virtual/kvm/devices/s390_flic.txt
@@ -64,12 +64,18 @@ struct kvm_s390_io_adapter {
__u8 isc;
__u8 maskable;
__u8 swap;
- __u8 pad;
+ __u8 flags;
};
id contains the unique id for the adapter, isc the I/O interruption subclass
- to use, maskable whether this adapter may be masked (interrupts turned off)
- and swap whether the indicators need to be byte swapped.
+ to use, maskable whether this adapter may be masked (interrupts turned off),
+ swap whether the indicators need to be byte swapped, and flags contains
+ further characteristics of the adapter.
+ Currently defined values for 'flags' are:
+ - KVM_S390_ADAPTER_SUPPRESSIBLE: adapter is subject to AIS
+ (adapter-interrupt-suppression) facility. This flag only has an effect if
+ the AIS capability is enabled.
+ Unknown flag values are ignored.
KVM_DEV_FLIC_ADAPTER_MODIFY