Bug 560665 - [SR-IOV] VF can not be enabled in Dom0 [rhel-5.4.z]
Summary: [SR-IOV] VF can not be enabled in Dom0 [rhel-5.4.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel-xen
Version: 5.4
Hardware: All
OS: Linux
urgent
medium
Target Milestone: rc
: ---
Assignee: Jiri Pirko
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On: 547980
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-02-01 15:07 UTC by RHEL Program Management
Modified: 2015-05-05 01:19 UTC (History)
14 users (show)

Fixed In Version: kernel-2.6.18-164.14.1.el5
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-03-17 00:19:22 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0147 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2010-03-17 00:18:44 UTC

Description RHEL Program Management 2010-02-01 15:07:10 UTC 
This bug has been copied from bug #547980 and has been proposed
to be backported to 5.4 z-stream (EUS).
Comment 4 Jiri Pirko 2010-02-19 17:16:51 UTC 
in 2.6.18-164.14.1.el5
Comment 7 Rita Wu 2010-03-02 10:38:12 UTC 
Hi Jiri,

Which result can mean this bug is fixed?
1.Only can VF be enabled in Dom0 
2.Not only VF can be enabled in Dom0, but the VF can be assigned to guest and I can use VF link to transmit data?
Comment 8 Jiri Pirko 2010-03-02 12:18:38 UTC 
Don, would you mind to answer c#7. Thanks a lot.
Comment 9 Don Dutile (Red Hat) 2010-03-02 16:35:22 UTC 
As long as you boot dom0 with pci_pt_e820_access=on

on the kernel boot line, than VF's should be usable in dom0 & in FV guest.

So, wrt c#6,  #2 is fixed with pci_pt_e820_access=on
on the kernel cmdline.

- Don
Comment 10 Rita Wu 2010-03-04 06:53:44 UTC 
Verified on kernel-2.6.18-164.15.1.el5.

commands added in cmdline:
kernerl /xen.gz iommu=force
module /vmlinuz pci_pt_e820_access=on

Now VF can be enabled in Dom0 and can be assigned to guests. At the same time, VF link can be pinged successfully without missing packages.
Comment 12 errata-xmlrpc 2010-03-17 00:19:22 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2010-0147.html
Note You need to log in before you can comment on or make changes to this bug.