lkml.org 
[lkml]   [2018]   [Mar]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v12 07/11] mm: Add address parameter to arch_validate_prot()
On Wed, 21 Feb 2018 10:15:49 -0700 Khalid Aziz <khalid.aziz@oracle.com> wrote:

> A protection flag may not be valid across entire address space and
> hence arch_validate_prot() might need the address a protection bit is
> being set on to ensure it is a valid protection flag. For example, sparc
> processors support memory corruption detection (as part of ADI feature)
> flag on memory addresses mapped on to physical RAM but not on PFN mapped
> pages or addresses mapped on to devices. This patch adds address to the
> parameters being passed to arch_validate_prot() so protection bits can
> be validated in the relevant context.
>
> Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
> Cc: Khalid Aziz <khalid@gonehiking.org>
> Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com>

Acked-by: Andrew Morton <akpm@linux-foundation.org>

\
 
 \ /
  Last update: 2018-03-06 23:49    [W:0.961 / U:0.564 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site