lkml.org 
[lkml]   [2017]   [Jul]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC Part1 PATCH v3 04/17] x86/mm: Don't attempt to encrypt initrd under SEV
On Mon, Jul 24, 2017 at 02:07:44PM -0500, Brijesh Singh wrote:
> From: Tom Lendacky <thomas.lendacky@amd.com>
>
> When SEV is active the initrd/initramfs will already have already been
> placed in memory encyrpted so do not try to encrypt it.
>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
> arch/x86/kernel/setup.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index 0bfe0c1..01d56a1 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -379,9 +379,11 @@ static void __init reserve_initrd(void)
> * If SME is active, this memory will be marked encrypted by the
> * kernel when it is accessed (including relocation). However, the
> * ramdisk image was loaded decrypted by the bootloader, so make
> - * sure that it is encrypted before accessing it.
> + * sure that it is encrypted before accessing it. For SEV the
> + * ramdisk will already be encyrpted, so only do this for SME.
^^^^^^^^^
Please introduce a spellchecker into your patch creation workflow.

--
Regards/Gruss,
Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--

\
 
 \ /
  Last update: 2017-07-26 16:46    [W:1.106 / U:0.464 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site