[PATCH v6 13/34] x86/mm: Add support for early encrypt/decrypt of memory

Borislav Petkov bp at alien8.de
Sat Jun 10 08:56:25 PDT 2017


On Wed, Jun 07, 2017 at 02:15:27PM -0500, Tom Lendacky wrote:
> Add support to be able to either encrypt or decrypt data in place during
> the early stages of booting the kernel. This does not change the memory
> encryption attribute - it is used for ensuring that data present in either
> an encrypted or decrypted memory area is in the proper state (for example
> the initrd will have been loaded by the boot loader and will not be
> encrypted, but the memory that it resides in is marked as encrypted).
> 
> Signed-off-by: Tom Lendacky <thomas.lendacky at amd.com>
> ---
>  arch/x86/include/asm/mem_encrypt.h |   15 +++++++
>  arch/x86/mm/mem_encrypt.c          |   76 ++++++++++++++++++++++++++++++++++++
>  2 files changed, 91 insertions(+)

Patches 11-13:

Reviewed-by: Borislav Petkov <bp at suse.de>

-- 
Regards/Gruss,
    Boris.

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