Bug 560665 – [SR-IOV] VF can not be enabled in Dom0 [rhel-5.4.z]

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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]

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 5
Classification:	Red Hat
Component:	kernel-xen (Show other bugs)
Sub Component:
Version:	5.4
Hardware:	All Linux

Priority	urgent Severity medium
Target Milestone:	rc
Target Release:	---
Assigned To:	Jiri Pirko
QA Contact:	Red Hat Kernel QE team
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	547980
Blocks:
	Show dependency tree / graph

Reported:	2010-02-01 10:07 EST by RHEL Product and Program Management
Modified:	2015-05-04 21:19 EDT (History)
CC List:	14 users (show)

See Also:
Fixed In Version:	kernel-2.6.18-164.14.1.el5
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-03-16 20:19:22 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2010:0147	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2010-03-16 20:18:44 EDT

Groups: None (edit)

Description RHEL Product and Program Management 2010-02-01 10:07:10 EST

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 12:16:51 EST

in 2.6.18-164.14.1.el5

Comment 7 Rita Wu 2010-03-02 05:38:12 EST

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 07:18:38 EST

Don, would you mind to answer c#7. Thanks a lot.

Comment 9 Don Dutile 2010-03-02 11:35:22 EST

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 01:53:44 EST

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 2010-03-16 20:19:22 EDT

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

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