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Diffstat (limited to 'Documentation/virtual/kvm/devices')
| -rw-r--r-- | Documentation/virtual/kvm/devices/xive.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/devices/xive.txt b/Documentation/virtual/kvm/devices/xive.txt new file mode 100644 index 000000000000..fdbd2ff92a88 --- /dev/null +++ b/Documentation/virtual/kvm/devices/xive.txt @@ -0,0 +1,19 @@ +POWER9 eXternal Interrupt Virtualization Engine (XIVE Gen1) +========================================================== + +Device types supported: + KVM_DEV_TYPE_XIVE POWER9 XIVE Interrupt Controller generation 1 + +This device acts as a VM interrupt controller. It provides the KVM +interface to configure the interrupt sources of a VM in the underlying +POWER9 XIVE interrupt controller. + +Only one XIVE instance may be instantiated. A guest XIVE device +requires a POWER9 host and the guest OS should have support for the +XIVE native exploitation interrupt mode. If not, it should run using +the legacy interrupt mode, referred as XICS (POWER7/8). + +* Groups: + + 1. KVM_DEV_XIVE_GRP_CTRL + Provides global controls on the device |