Add a "vm_holders" sub-collection under host device resource, so the front-end can determine if a device is busy or not, and the user can know which VM is holding the device. This patch scans all VM XML to check if a device is hold by a VM. Example curl -k -u root -H "Content-Type: application/json" \ -H "Accept: application/json" \ 'https://127.0.0.1:8001/host/devices/usb_1_1_6/vm_holders Should output a list like following. [ { "state":"shutoff", "name":"fedora20" }, { "state":"running", "name":"f20xfce-slave" } ] If there is no VM holding the device, it prints an empty list []. Signed-off-by: Zhou Zheng Sheng <zhshzhou@linux.vnet.ibm.com> --- src/kimchi/control/host.py | 7 +++++++ src/kimchi/model/host.py | 21 +++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/src/kimchi/control/host.py b/src/kimchi/control/host.py index 15f2343..efc31ea 100644 --- a/src/kimchi/control/host.py +++ b/src/kimchi/control/host.py @@ -110,11 +110,18 @@ class PassthroughAffectedDevices(Collection): self.model_args = (device_id, ) +class VMHolders(SimpleCollection): + def __init__(self, model, device_id): + super(VMHolders, self).__init__(model) + self.model_args = (device_id, ) + + class Device(Resource): def __init__(self, model, id): super(Device, self).__init__(model, id) self.passthrough_affected_devices = \ PassthroughAffectedDevices(self.model, id) + self.vm_holders = VMHolders(self.model, id) @property def data(self): diff --git a/src/kimchi/model/host.py b/src/kimchi/model/host.py index 7022566..14ccf54 100644 --- a/src/kimchi/model/host.py +++ b/src/kimchi/model/host.py @@ -294,6 +294,27 @@ class PassthroughAffectedDevicesModel(object): return [dev['name'] for dev in affected] +class VMHoldersModel(object): + def __init__(self, **kargs): + self.conn = kargs['conn'] + + def get_list(self, device_id): + # Avoid curcular import in top level + from kimchi.model.vmhostdevs import VMHostDevsModel + devsmodel = VMHostDevsModel(conn=self.conn) + + conn = self.conn.get() + doms = conn.listAllDomains(0) + + res = [] + for dom in doms: + dom_name = dom.name() + if device_id in devsmodel.get_list(dom_name): + state = DOM_STATE_MAP[dom.info()[0]] + res.append({"name": dom_name, "state": state}) + return res + + class DeviceModel(object): def __init__(self, **kargs): self.conn = kargs['conn'] -- 1.9.0