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Merge pull request #47 from xindazhao/gpu-vfio-mdev

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qemu/qmp: add vfio mediated device support on root bus
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Mark Ryan 2018-09-18 10:00:32 +02:00 committed by GitHub
commit 9905ae92c5
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1 changed files with 6 additions and 4 deletions
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10
qemu/qmp.go
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@ -937,20 +937,22 @@ func (q *QMP) ExecutePCIVFIODeviceAdd(ctx context.Context, devID, bdf, addr, bus
}
// ExecutePCIVFIOMediatedDeviceAdd adds a VFIO mediated device to a QEMU instance using the device_add command.
// This function can be used to hot plug VFIO mediated devices on PCI(E) bridges, unlike
// This function can be used to hot plug VFIO mediated devices on PCI(E) bridges or root bus, unlike
// ExecuteVFIODeviceAdd this function receives the bus and the device address on its parent bus.
// bus is optional. devID is the id of the device to add. Must be valid QMP identifier. sysfsdev is the VFIO
// mediated device.
// devID is the id of the device to add. Must be valid QMP identifier. sysfsdev is the VFIO mediated device.
// Both bus and addr are optional. If they are both set to be empty, the system will pick up an empty slot on root bus.
func (q *QMP) ExecutePCIVFIOMediatedDeviceAdd(ctx context.Context, devID, sysfsdev, addr, bus string) error {
args := map[string]interface{}{
"id": devID,
"driver": "vfio-pci",
"sysfsdev": sysfsdev,
"addr": addr,
}
if bus != "" {
args["bus"] = bus
}
if addr != "" {
args["addr"] = addr
}
return q.executeCommand(ctx, "device_add", args, nil)
}