lkml.org 
[lkml]   [2016]   [Aug]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] efi: capsule: allocate whole capsule into virtual memory
On Thu, 28 Jul, at 03:30:29PM, Christ, Austin wrote:
> According to UEFI 2.6 section 7.5.3, the capsule should be in contiguous
> virtual memory and firmware may consume the capsule immediately. To
> correctly implement this functionality, the kernel driver needs to vmap
> the entire capsule at the time it is made available to firmware.
>
> The virtual allocation of the capsule update has been changed from kmap,
> which was only allocating the first page of the update, to vmap, and
> allocates the entire data payload.
>
> Signed-off-by: Austin Christ <austinwc@codeaurora.org>
> Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
> Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
> ---
> drivers/firmware/efi/capsule-loader.c | 8 +++++---
> drivers/firmware/efi/capsule.c | 6 +++---
> 2 files changed, 8 insertions(+), 6 deletions(-)

Thanks, applied.

\
 
 \ /
  Last update: 2016-08-05 14:21    [W:0.035 / U:0.168 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site