crypto: ccp - introduce SEV_GET_ID2 command

The current definition and implementation of the SEV_GET_ID command
does not provide the length of the unique ID returned by the firmware.
As per the firmware specification, the firmware may return an ID
length that is not restricted to 64 bytes as assumed by the SEV_GET_ID
command.

Introduce the SEV_GET_ID2 command to overcome with the SEV_GET_ID
limitations. Deprecate the SEV_GET_ID in the favor of SEV_GET_ID2.

At the same time update SEV API web link.

Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Gary Hook <gary.hook@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Nathaniel McCallum <npmccallum@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Singh, Brijesh
2019-03-28 21:58:52 +00:00
committed by Herbert Xu
parent ffecb696d4
commit d6112ea0cb
3 changed files with 82 additions and 6 deletions

View File

@@ -5,8 +5,7 @@
*
* Author: Brijesh Singh <brijesh.singh@amd.com>
*
* SEV spec 0.14 is available at:
* http://support.amd.com/TechDocs/55766_SEV-KM API_Specification.pdf
* SEV API spec is available at https://developer.amd.com/sev
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as