In function "desc_length", LSB byte of the first word of the
descriptor will be anded with 0x7F, to get the number of words
constructing the descriptor.
LSB byte of the first word of the descriptor is auto-incremented
with each add_word used while constructing the descriptor.
But if function "desc_add_word" is called more than
MAX_DESC_SIZE_WORDS times, then only the function "desc_length",
can return number of words greater than MAX_DESC_SIZE_WORDS.
This is the condition when core can overwrite the out of bound
memory.
Hence, the following fix is needed:
- Before adding any new word to the descriptor, a check for
max word length needs to be added, into these functions:
"desc_add_word" & "desc_add_ptr".
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: If896cd2e02ecde72fb09c5147119dec4f2f84bc3
bitfield structure maybe has strict-aliasing issue for some compiler,
for example the old code has hang issue for yocto 3.4 toolchain, so
refine the code to avoid to use bitfield structure.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I6b6d7597311240dd6d6b8ca4ce508c69332f9c68
NXP drivers header files are moved:
- from: drivers/nxp/<xx>/*.h
- to : include/drivers/nxp/<xx>/*.h
To accommodate these changes each drivers makefiles
drivers/nxp/<xx>/xx.mk, are updated.
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I3979c509724d87e3d631a03dbafda1ee5ef07d21
NXP has hardware crypto accelerator called CAAM.
- Work with Job ring
- Jobs are submitted to CAAM in the form of 64 word
descriptor.
Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I02bcfce68143b8630e1833a74c4b126972f4323d
