lkml.org 
[lkml]   [2005]   [Aug]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRE: [patch] fix ACPI table discovery from EFI for x86
Date
From
Bjorn Helgaas <> wrote:
> On Wednesday 13 July 2005 7:09 pm, Matt Tolentino wrote:
>> This patch addresses a problem on x86 EFI systems with larger memory
>> configurations. Up until now, we've relied on the fact that the
>> ACPI RSDT would reside somewhere in low memory that could be
>> permanently
>> mapped in kernel address space - so __va() has been sufficient.
>> However,
>> on EFI systems, the RSDT is often anywhere in the lower 4GB of
>> physical
>> address space. So, we may need to remap it on x86 systems.
>
> The hunk below breaks HP rx7620, rx8620, and Superdome (all ia64)
> systems. This is from 2.6.13-rc4-mm1, in

Ugh. Well, that's pretty ugly...

Andrew, Len, please drop this one until I look at this closer.

> acpi-fix-table-discovery-from-efi-for-x86.patch

Thanks for testing Bjorn.

matt


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-08-05 00:41    [W:0.030 / U:2.796 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site