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crypto: ccp - Fix XTS-AES-128 support on v5 CCPs

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Version 5 CCPs have some new requirements for XTS-AES: the type field
must be specified, and the key requires 512 bits, with each part
occupying 256 bits and padded with zeroes.

cc: <stable@vger.kernel.org> # 4.9.x+

Signed-off-by: Gary R Hook <ghook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gary R Hook
2017-07-25 14:12:11 -05:00
committed by Herbert Xu
parent 7c83d689c7
commit e652399edb
5 changed files with 43 additions and 11 deletions
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3
include/linux/ccp.h
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@@ -1,7 +1,7 @@
/*
* AMD Cryptographic Coprocessor (CCP) driver
*
* Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
* Copyright (C) 2013,2017 Advanced Micro Devices, Inc.
*
* Author: Tom Lendacky <thomas.lendacky@amd.com>
* Author: Gary R Hook <gary.hook@amd.com>
@@ -229,6 +229,7 @@ enum ccp_xts_aes_unit_size {
* AES operation the new IV overwrites the old IV.
*/
struct ccp_xts_aes_engine {
enum ccp_aes_type type;
enum ccp_aes_action action;
enum ccp_xts_aes_unit_size unit_size;