lkml.org 
[lkml]   [2008]   [Sep]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86: split e820 reserved entries record to late v4

* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Fri, 29 Aug 2008, Ingo Molnar wrote:
> >
> > BIOS-e820: 0000000077ff0000 - 0000000078000000 (reserved)
> > BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
> > BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
> >
> > which overlaps with the chipset PCI BAR (hpet) resource:
> >
> > pci 0000:00:14.0: BAR has HPET at fed00000-fed003ff
> >
> > so due to this 1K conflict we take the full e820-reserved entry out and
> > give the range 0xfec00000-0x100000000 as 'free'.
>
> That's wrong. It's a full overlap, so "insert_resource()" should
> happily insert the 00000000fec00000 - 0000000100000000 _around_ the
> HPET bar.
>
> Do you actually see this behavior, or do you just misunderstand how
> "insert_resource()" works?

the latter, i misunderstood how it works.

Ingo


\
 
 \ /
  Last update: 2008-09-06 19:57    [W:0.060 / U:0.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site