Red Hat Bugzilla – Bug 590543
The glossary still mentions Xen in ways left over from RHEL 5
Last modified: 2011-12-05 20:04:27 EST
Description of problem:
The glossary still mentions Xen in places. For example:
Para-virtualization uses a special kernel, sometimes referred to as the Xen kernel or the kernel-xen package. Para-virtualized guest kernels are run concurrently on the host while using the host's libraries and devices. A para-virtualized installation can have complete access to all devices on the system which can be limited with security settings (SELinux and file controls). Para-virtualization is faster than full virtualization. Para-virtualization can effectively be used for load balancing, provisioning, security and consolidation advantages.
As of Fedora 9 a special kernel will no longer be needed. Once this patch is accepted into the main Linux tree all Linux kernels after that version will have para-virtualization enabled or available."
Version-Release number of selected component (if applicable):
RHEL 6 public beta Virtualization Guide (April 2010)
References to Xen not to be converted to KVM or removed, except for a few appropriate edge cases.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release. Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release. This request is not yet committed for
Some mention of it should probably still be incorporated. I've removed all technical references but the glossary entries, I think, should stay for the v2v conversion (converting from Xen para-virtualized to KVM on RHEL6). Red Hat Enterprise Linux 6 works as a para-virtualized guest (with the new PV-opts feature) on Red Hat Enterprise Linux 5 Xen.
Modified to make the glossary clearer in build 19.
Hi Chris, did you remove this bit in the above too?
"As of Fedora 9 a special kernel will no longer be needed. Once this patch
is accepted into the main Linux tree all Linux kernels after that version will
have para-virtualization enabled or available."
Thinking that's probably really outdated.
Yeah, I cut that bit out. This is the new description if you would like to review:
Para-virtualization is only available in Red Hat Enterprise Linux 5. Para-virutalization uses software mechanisms to share devices and system resources with specially-designed kernels or newer kernels with the PV-opts features. Para-virtualization on Red Hat Enterprise Linux 5 uses the Xen hypervisor from the kernel-xen package. Para-virtualized guest kernels run concurrently with the host kernel and securely access some the host's libraries and devices.
Red Hat Enterprise Linux 6 can function as a para-virtualized guest for Red Hat Enterprise Linux 5 Xen and other certified hypervisors.
That's a very very good description.
Extremely clear, and well worded. :)
Thanks, I'll try to get this public shortly.
Verified it is in Red_Hat_Enterprise_Linux-Virtualization-6-en-US-0-29