diff options
| author | Clemens Gruber <clemens.gruber@pqgruber.com> | 2018-01-07 20:26:29 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-01-08 08:26:03 -0500 |
| commit | 598e9dccc75d8302df58560c52487248a6c33c4d (patch) | |
| tree | 805e773b33c458ab20982405eb3b180623d89419 /include | |
| parent | ca833ca9579b29c5667ea2fa7a9d3f89f1599a94 (diff) | |
crypto/fsl: fix BLOB encapsulation and decapsulation
The blob_encap and blob_decap functions were not flushing the dcache
before passing data to CAAM/DMA and not invalidating the dcache when
getting data back.
Therefore, blob encapsulation and decapsulation failed with errors like
the following due to data cache incoherency:
"40000006: DECO: desc idx 0: Invalid KEY command"
To ensure coherency, we require the key_mod, src and dst buffers to be
aligned to the cache line size and flush/invalidate the memory regions.
The same requirements apply to the job descriptor.
Tested on an i.MX6Q board.
Reviewed-by: Sumit Garg <sumit.garg@nxp.com>
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/fsl_sec.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/fsl_sec.h b/include/fsl_sec.h index 61c671d6c7..a2f5f5a5f1 100644 --- a/include/fsl_sec.h +++ b/include/fsl_sec.h @@ -215,6 +215,8 @@ struct sg_entry { #define SG_ENTRY_OFFSET_SHIFT 0 }; +#define BLOB_SIZE(x) ((x) + 32 + 16) /* Blob buffer size */ + #if defined(CONFIG_MX6) || defined(CONFIG_MX7) /* Job Ring Base Address */ #define JR_BASE_ADDR(x) (CONFIG_SYS_FSL_SEC_ADDR + 0x1000 * (x + 1)) @@ -274,8 +276,6 @@ struct sg_entry { #define PERM 0x0000B008 /* Clear on release, lock SMAP * lock SMAG group 1 Blob */ -#define BLOB_SIZE(x) (x + 32 + 16) /* Blob buffer size */ - /* HAB WRAPPED KEY header */ #define WRP_HDR_SIZE 0x08 #define HDR_TAG 0x81 |