tee: optee: add page list manipulation functions

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These functions will be used to pass information about shared
buffers to OP-TEE. ABI between Linux and OP-TEE is defined
in optee_msg.h and optee_smc.h.

optee_msg.h defines OPTEE_MSG_ATTR_NONCONTIG attribute
for shared memory references and describes how such references
should be passed. Note that it uses 64-bit page addresses even
on 32 bit systems. This is done to support LPAE and to unify
interface.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
[jw: replacing uint64_t with u64 in optee_fill_pages_list()]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Volodymyr Babchuk 2017-11-29 14:48:30 +02:00 • committed by Jens Wiklander

parent de5c6dfc43

commit 3bb48ba5cd

2 changed files with 96 additions and 0 deletions

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91

drivers/tee/optee/call.c

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5

drivers/tee/optee/optee_private.h

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