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[Xen-devel] [PATCH 1/2][Domain0] Fix ACPICA to correctly parse cpufreq information

  • To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Yu, Ke" <ke.yu@xxxxxxxxx>
  • Date: Thu, 25 Sep 2008 17:35:26 +0800
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Thu, 25 Sep 2008 02:35:54 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acke8gj/B4Rzw91LQg2AjUauFd2Y4Q==
  • Thread-topic: [PATCH 1/2][Domain0] Fix ACPICA to correctly parse cpufreq information

These two patches are pulled from linux kernel upstream, to allow ACPICA 
corretly parse cpufreq info from some non-standard BIOS. We find current 
cpufreq in Xen does not work correctly in some machine, and these two patch fix 
this issue.

commit 24058054d781934df526be114c612cf2b29cf4e7
Author: Bob Moore <robert.moore@xxxxxxxxx>
Date:   Fri Feb 2 19:48:18 2007 +0300

    ACPICA: Handle mis-matched package length

    Implement support within the AML interpreter for
    package objects that contain a mismatch between the AML
    length and package element count. In this case, the lesser
    of the two is used. Some BIOS code apparently modifies
    the package length on the fly, and this change supports
    this. Provides compatibility with the MS AML interpreter.

    Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@xxxxxxxxx>
    Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

Attachment: kernel-pss1.patch
Description: kernel-pss1.patch

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