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| author | honclo <honclo@imap.linux.ibm.com> | 2015-02-13 02:02:24 (GMT) |
|---|---|---|
| committer | Peter Huewe <peterhuewe@gmx.de> | 2015-02-15 16:36:05 (GMT) |
| commit | eb71f8a5e33fa1066fb92f0111ab366a341e1f6c (patch) | |
| tree | 7c6c007038f542d86133a7645f5ac631426ad726 /drivers/char/tpm/tpm2-cmd.c | |
| parent | 4d5f2051cd24adc19a645e920344e05afe8d69b9 (diff) | |
| download | linux-eb71f8a5e33fa1066fb92f0111ab366a341e1f6c.tar.xz | |
Added Little Endian support to vtpm module
The tpm_ibmvtpm module is affected by an unaligned access problem.
ibmvtpm_crq_get_version failed with rc=-4 during boot when vTPM is
enabled in Power partition, which supports both little endian and
big endian modes.
We added little endian support to fix this problem:
1) added cpu_to_be64 calls to ensure BE data is sent from an LE OS.
2) added be16_to_cpu and be32_to_cpu calls to make sure data received
is in LE format on a LE OS.
Signed-off-by: Hon Ching(Vicky) Lo <honclo@linux.vnet.ibm.com>
Signed-off-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
[phuewe: manually applied the patch :( ]
Reviewed-by: Ashley Lai <ashley@ahsleylai.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Diffstat (limited to 'drivers/char/tpm/tpm2-cmd.c')
0 files changed, 0 insertions, 0 deletions