lkml.org 
[lkml]   [2015]   [Mar]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 0/7] mtrr, mm, x86: Enhance MTRR checks for huge I/O mapping
On Tue, 24 Mar 2015 16:08:34 -0600 Toshi Kani <toshi.kani@hp.com> wrote:

> This patchset enhances MTRR checks for the kernel huge I/O mapping,
> which was enabled by the patchset below:
> https://lkml.org/lkml/2015/3/3/589
>
> The following functional changes are made in patch 7/7.
> - Allow pud_set_huge() and pmd_set_huge() to create a huge page
> mapping to a range covered by a single MTRR entry of any memory
> type.
> - Log a pr_warn() message when a specified PMD map range spans more
> than a single MTRR entry. Drivers should make a mapping request
> aligned to a single MTRR entry when the range is covered by MTRRs.
>

OK, I grabbed these after barely looking at them, to get them a bit of
runtime testing.

I'll await guidance from the x86 maintainers regarding next steps?


\
 
 \ /
  Last update: 2015-03-25 00:01    [W:0.139 / U:1.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site