Bug 456300 - IPMI: Restrict keyboard io port reservation
IPMI: Restrict keyboard io port reservation
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
low Severity low
: rc
: ---
Assigned To: Peter Martuccelli
Martin Jenner
Depends On:
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Reported: 2008-07-22 13:57 EDT by Peter Martuccelli
Modified: 2009-01-20 15:25 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-01-20 15:25:26 EST
Type: ---
Regression: ---
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Documentation: ---
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Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Restrict keyboard io port reservation (2.26 KB, patch)
2008-07-24 15:52 EDT, Markus Armbruster
no flags Details | Diff

  None (edit)
Description Peter Martuccelli 2008-07-22 13:57:19 EDT
Commit:     9096bd7a66efbe406910365c5206a32eed3875af
Parent:     fd3c3ed5d1e3ceb37635cbe6d220ab94aae0781d
Author:     Helge Wagner <Helge.Wagner@gefanuc.com>
AuthorDate: Tue Apr 29 14:20:40 2008 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sat May 10 19:31:45 2008 +0200

    x86: restrict keyboard io ports reservation to make ipmi driver work
    On some of our (single board computer) boards (x86) we are using an
    IPMI controller that uses I/O ports 0x62 and 0x66 for a KCS (keyboard
    controller style) IPMI system interface.
    Trying to load the openipmi driver fails, because the ports
    (0x62/0x66) are reserved for keyboard. keyboard reserves the full
    range 0x60-0x6F while it doesn't need to.
    Reserve only ports 0x60 and 0x64 for the legacy PS/2 i8042 keyboad
    controller instead of 0x60-0x6F to allow the openipmi driver to work.
Comment 1 RHEL Product and Program Management 2008-07-22 14:02:37 EDT
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
Comment 3 Markus Armbruster 2008-07-24 15:52:45 EDT
Created attachment 312591 [details]
Restrict keyboard io port reservation

Straightforward backport from the upstream commit referenced in the bug
description, extended to cover Xen.  Submitted to xen-devel unchanged, as it
applies cleanly to their (non-pvops) kernel.
Comment 4 Markus Armbruster 2008-07-25 09:14:51 EDT
Patch from comment#3 is now in http://xenbits.xensource.com/linux-2.6.18-xen.hg
as changeset 617:6d9e4b02bba4.
Comment 5 Don Zickus 2008-07-30 20:49:36 EDT
in kernel-2.6.18-101.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 9 errata-xmlrpc 2009-01-20 15:25:26 EST
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.


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