openstack/nova
Code Issues Proposed changes

libvirt: Remove dead code

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The '_prepare_pci_devices_for_use' function is Xen-specific and should
have been removed in change I73305e82da5d8da548961b801a8e75fb0e8c4cf1
("libvirt: Drop support for Xen"). Remove it now.

Change-Id: Ie7dc3247a0d6526224bed1af429234cc2403a70a
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
This commit is contained in:
Stephen Finucane 2021-01-28 14:34:23 +00:00
parent ded25f33c7
commit c23bda400a
1 changed files with 0 additions and 32 deletions
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32
nova/virt/libvirt/driver.py
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@ -4316,38 +4316,6 @@ class LibvirtDriver(driver.ComputeDriver):
instance=instance)
os.unlink(config_disk_local_path)
def _prepare_pci_devices_for_use(self, pci_devices):
# kvm , qemu support managed mode
# In managed mode, the configured device will be automatically
# detached from the host OS drivers when the guest is started,
# and then re-attached when the guest shuts down.
if CONF.libvirt.virt_type != 'xen':
# we do manual detach only for xen
return
try:
for dev in pci_devices:
libvirt_dev_addr = dev['hypervisor_name']
libvirt_dev = \
self._host.device_lookup_by_name(libvirt_dev_addr)
# Note(yjiang5) Spelling for 'dettach' is correct, see
# http://libvirt.org/html/libvirt-libvirt.html.
libvirt_dev.dettach()
# Note(yjiang5): A reset of one PCI device may impact other
# devices on the same bus, thus we need two separated loops
# to detach and then reset it.
for dev in pci_devices:
libvirt_dev_addr = dev['hypervisor_name']
libvirt_dev = \
self._host.device_lookup_by_name(libvirt_dev_addr)
libvirt_dev.reset()
except libvirt.libvirtError as exc:
raise exception.PciDevicePrepareFailed(id=dev['id'],
instance_uuid=
dev['instance_uuid'],
reason=str(exc))
def _detach_pci_devices(self, guest, pci_devs):
try:
for dev in pci_devs: