[libvirt PATCH v5 26/30] nodedev: add ability to specify UUID for new mdevs

Use the new <uuid> element in the mdev caps to define and start devices with a specific UUID. Signed-off-by: Jonathon Jongsma <jjongsma(a)redhat.com&gt; --- src/node_device/node_device_driver.c | 19 ++++++++++++++++--- ...19_36ea_4111_8f0a_8c9a70e21366-define.argv | 3 ++- ...019_36ea_4111_8f0a_8c9a70e21366-start.argv | 3 ++- ...v_d069d019_36ea_4111_8f0a_8c9a70e21366.xml | 1 + 4 files changed, 21 insertions(+), 5 deletions(-) diff --git a/src/node_device/node_device_driver.c b/src/node_device/node_device_driver.c index e89d317152..a7ae3d5254 100644 --- a/src/node_device/node_device_driver.c +++ b/src/node_device/node_device_driver.c @@ -729,6 +729,10 @@ nodeDeviceGetMdevctlDefineStartCommand(virNodeDeviceDefPtr def, NULL); virCommandSetInputBuffer(cmd, json); + + if (def->caps->data.mdev.uuid) + virCommandAddArgPair(cmd, "--uuid", def->caps->data.mdev.uuid); + virCommandSetOutputBuffer(cmd, uuid_out); virCommandSetErrorBuffer(cmd, errmsg); @@ -816,7 +820,12 @@ nodeDeviceCreateXMLMdev(virConnectPtr conn, return NULL; } - return nodeDeviceFindNewMediatedDevice(conn, uuid); + if (uuid && uuid[0]) { + g_free(def->caps->data.mdev.uuid); + def->caps->data.mdev.uuid = g_steal_pointer(&uuid); + } + + return nodeDeviceFindNewMediatedDevice(conn, def->caps->data.mdev.uuid); } @@ -1230,9 +1239,13 @@ nodeDeviceDefineXML(virConnectPtr conn, return NULL; } - def->caps->data.mdev.uuid = g_strdup(uuid); + if (uuid && uuid[0]) { + g_free(def->caps->data.mdev.uuid); + def->caps->data.mdev.uuid = g_steal_pointer(&uuid); + } + mdevGenerateDeviceName(def); - device = nodeDeviceFindNewMediatedDevice(conn, uuid); + device = nodeDeviceFindNewMediatedDevice(conn, def->caps->data.mdev.uuid); return device; } diff --git a/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-define.argv b/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-define.argv index 773e98b963..118ec7a8da 100644 --- a/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-define.argv +++ b/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-define.argv @@ -1 +1,2 @@ -$MDEVCTL_BINARY$ define -p 0000:00:02.0 --jsonfile /dev/stdin +$MDEVCTL_BINARY$ define -p 0000:00:02.0 --jsonfile /dev/stdin \ +--uuid=d069d019-36ea-4111-8f0a-8c9a70e21366 diff --git a/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-start.argv b/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-start.argv index eb7262035e..129f438e4a 100644 --- a/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-start.argv +++ b/tests/nodedevmdevctldata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366-start.argv @@ -1 +1,2 @@ -$MDEVCTL_BINARY$ start -p 0000:00:02.0 --jsonfile /dev/stdin +$MDEVCTL_BINARY$ start -p 0000:00:02.0 --jsonfile /dev/stdin \ +--uuid=d069d019-36ea-4111-8f0a-8c9a70e21366 diff --git a/tests/nodedevschemadata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366.xml b/tests/nodedevschemadata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366.xml index d6a2e99edc..605d8f63a1 100644 --- a/tests/nodedevschemadata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366.xml +++ b/tests/nodedevschemadata/mdev_d069d019_36ea_4111_8f0a_8c9a70e21366.xml @@ -3,5 +3,6 @@ <parent>pci_0000_00_02_0</parent> <capability type='mdev'> <type id='i915-GVTg_V5_8'/> + <uuid>d069d019-36ea-4111-8f0a-8c9a70e21366</uuid> </capability> </device> -- 2.26.2