virt-manager/virt-manager-virt-xml-add-support-for-mediated-devices.patch
Jonathon Jongsma 42054bb4c3 virt-manager-3.2.0-9.el9
- virt-install: add mediated device (rhbz#1995131)
- virt-xml: add support for mediated devices (rhbz#1995131)
- hostdev: use method get_mdev_uuid() (rhbz#1995131)
- tests: verify MDEV support (rhbz#1995131)
- virt-manager: enable MDEV support (rhbz#1995131)

Resolves: rhbz#1995131
2021-09-09 16:17:09 -05:00

78 lines
2.4 KiB
Diff

From d4a11d8f8a0b7990c9d349da2306c7f4103a43e0 Mon Sep 17 00:00:00 2001
From: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Date: Mon, 31 May 2021 21:54:26 +0200
Subject: [PATCH] virt-xml: add support for mediated devices
Provide support to add/remove MDEV in a guest domain, which is in
shut-off or running state (hotplug/unplug). Also support update of
already existing MDEV device, when the guest domain is in shut-off
state. Please note that libvirt does not support update of MDEV
device, when the guest domain is in running state.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1995131
(cherry picked from commit 9363e1e692bb0d01184ecc7991d61c95542f690b)
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
---
virtinst/nodedev.py | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/virtinst/nodedev.py b/virtinst/nodedev.py
index 97841794..f54a311c 100644
--- a/virtinst/nodedev.py
+++ b/virtinst/nodedev.py
@@ -5,6 +5,7 @@
# See the COPYING file in the top-level directory.
import os
+import uuid
from .logger import log
from .xmlbuilder import XMLBuilder, XMLProperty, XMLChildProperty
@@ -25,6 +26,16 @@ def _compare_int(nodedev_val, hostdev_val):
return (nodedev_val == hostdev_val or hostdev_val == -1)
+def _compare_uuid(nodedev_val, hostdev_val):
+ try:
+ nodedev_val = uuid.UUID(nodedev_val)
+ hostdev_val = uuid.UUID(hostdev_val)
+ except Exception: # pragma: no cover
+ return -1
+
+ return (nodedev_val == hostdev_val)
+
+
class DevNode(XMLBuilder):
XML_NAME = "devnode"
@@ -82,6 +93,9 @@ class NodeDevice(XMLBuilder):
parent = XMLProperty("./parent")
device_type = XMLProperty("./capability/@type")
+ def get_mdev_uuid(self):
+ return self.name[5:].replace('_', '-')
+
def compare_to_hostdev(self, hostdev):
if self.device_type == "pci":
if hostdev.type != "pci":
@@ -101,6 +115,12 @@ class NodeDevice(XMLBuilder):
_compare_int(self.bus, hostdev.bus) and
_compare_int(self.device, hostdev.device))
+ if self.device_type == "mdev":
+ if hostdev.type != "mdev":
+ return False
+
+ return _compare_uuid(self.get_mdev_uuid(), hostdev.uuid)
+
return False
--
2.31.1