Chapter 1. Package Updates
156
• the "virsh" and "xm" commands passed incorrectly passed the option "type=vbd" when either
attaching or detaching TAP devices, which caused the command to fail. With this update, the correct
type, "type=tap", is passed when TAP devices are attached or detached. (
BZ#483835
1165
)
• occasionally, libvirt lost track of running domains, the command "virsh list" did not list those
domains, and pid files still existed for the processes representing those domains. A fix to the
libvirt event loop now ensures that libvirt is able to keep track of all running domains on the host.
(
BZ#499250
1166
)
• due to a domain ID-handling error, the command "virsh destroy [domain-id]" could potentially
terminate domains with IDs similar to the target. This has been corrected so that "virsh destroy
[domain-id]" terminates only the target domain. (
BZ#500158
1167
)
• running the command "virsh dominfo [domain-id]" to acquire information about a running Xen
domain resulted in this error message:
error: this function is not supported by the hypervisor: virNodeGetSecurityModel
This update fixes the dominfo subcommand so that it does not return an error message if the
security model API is unimplemented. (
BZ#506688
1168
)
• right-clicking on a running domain in the virt-manager application and then choosing Shutdown -
> Force Off incorrectly caused that domain ID to disappear from the virt-manager list of VMs. In
addition, domains created with the virt-manager or virt-install applications were not listed in the GUI
window until virt-manager was restarted or the newly-created guest was started. This issue was
related to inotify support and has been fixed in these updated packages. (
BZ#508278
1169
)
In addition, these updated packages provide the following enhancements:
• PCI pass-through is a virtualization-related ability that is enabled by AMD's IOMMU and Intel's VT-d
technologies. With PCI pass-through, PCI devices can be "passed through" the hypervisor (that is,
bypassing it and locking it out) to an unprivileged domain, thereby allowing near-native performance
of hardware devices, such as network cards, in guest domains. With this update, PCI pass-through
is enabled for both Xen and KVM virtual machines. (
BZ#471156
1170
,
BZ#513317
1171
,
BZ#496925
1172
,
BZ#481757
1173
,
BZ#481747
1174
)
Users are advised to upgrade to these updated libvirt packages, which resolve these issues and add
these enhancements.
1.128. libvirt-cim
1.128.1. RHEA-2009:1270: bug fix and enhancement update
An enhanced version of libvirt-cim which provides support for the KVM-based virtualization in Red Hat
Enterprise Linux 5.4 is now available.
The introduction of KVM virtualization in Red Hat Enterprise Linux 5.4 required that libvirt-cim be
rebased and updated to support the new hypervisor. Libvirt-cim is a CMPI CIM provider that lets you
manage multiple platforms and provides support for some libvirt features.
This package applies the fix for the following bug:
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