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/optee_os/core/include/kernel/
H A Dmsg_param.hb05cd886e06dce9516b6434d3f1e0bd0029be1ac Thu Jun 15 21:38:44 UTC 2017 Volodymyr Babchuk <vlad.babchuk@gmail.com> core: enable non-contiguous temporary reference parameters

Now, when we can pass list of pages between REE and TEE it is possible
to use temporary memory references that are not located in a preallocated
shared memory area. By employing OPTEE_MSG_ATTR_NONCONTIG parameter
attribute, REE can provide own buffer as a temporary memory reference.

Actually, such parameters are indistinguishable from registered shared
memory references. So, when OP-TEE spots temporary memory reference with
OPTEE_MSG_ATTR_NONCONTIG attribute, it will create `mobj_reg_shm` for it.
After call was handled, it will free that mobj.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (FVP, QEMU v7/v8)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Juno with and without pager)
Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (Rcar M3)
/optee_os/core/kernel/
H A Dmsg_param.cb05cd886e06dce9516b6434d3f1e0bd0029be1ac Thu Jun 15 21:38:44 UTC 2017 Volodymyr Babchuk <vlad.babchuk@gmail.com> core: enable non-contiguous temporary reference parameters

Now, when we can pass list of pages between REE and TEE it is possible
to use temporary memory references that are not located in a preallocated
shared memory area. By employing OPTEE_MSG_ATTR_NONCONTIG parameter
attribute, REE can provide own buffer as a temporary memory reference.

Actually, such parameters are indistinguishable from registered shared
memory references. So, when OP-TEE spots temporary memory reference with
OPTEE_MSG_ATTR_NONCONTIG attribute, it will create `mobj_reg_shm` for it.
After call was handled, it will free that mobj.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (FVP, QEMU v7/v8)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Juno with and without pager)
Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (Rcar M3)
/optee_os/core/arch/arm/kernel/
H A Dthread.cb05cd886e06dce9516b6434d3f1e0bd0029be1ac Thu Jun 15 21:38:44 UTC 2017 Volodymyr Babchuk <vlad.babchuk@gmail.com> core: enable non-contiguous temporary reference parameters

Now, when we can pass list of pages between REE and TEE it is possible
to use temporary memory references that are not located in a preallocated
shared memory area. By employing OPTEE_MSG_ATTR_NONCONTIG parameter
attribute, REE can provide own buffer as a temporary memory reference.

Actually, such parameters are indistinguishable from registered shared
memory references. So, when OP-TEE spots temporary memory reference with
OPTEE_MSG_ATTR_NONCONTIG attribute, it will create `mobj_reg_shm` for it.
After call was handled, it will free that mobj.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (FVP, QEMU v7/v8)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Juno with and without pager)
Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (Rcar M3)