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tee.bin partitioning #1621

Merged
merged 4 commits into from
Jun 20, 2017
Merged

tee.bin partitioning #1621

merged 4 commits into from
Jun 20, 2017

Commits on Jun 20, 2017

  1. core: arm: use weak symbols to reduce dependency graphs 

    Makes functions that need to be excluded from unpaged and init parts of
the TEE binary weak. When building the dependency graph for init and
unpaged parts an empty version of those functions (from
core/arch/arm/kernel/link_dummies.c) are used instead.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
    @jenswi-linaro
    jenswi-linaro committed Jun 20, 2017
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  2. core: reduce unpaged size 

    Reduces unpaged size by excluding __thread_std_smc_entry() from the
unpaged graph.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
    @jenswi-linaro
    jenswi-linaro committed Jun 20, 2017
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  3. core: reduce init size 

    Dramatically reduces init size by excluding __wq_rpc() from the init
graph. Without __wq_rpc() in the init grapth, the entire LibTomCrypt is
removed for the init graph.

Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (QEMU v8 pager)
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
    @jenswi-linaro
    jenswi-linaro committed Jun 20, 2017
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  4. core: arm64: bugfix invalidate touched init memory 

    The entire range of memory touched during init need to be invalidated in
the caches before enabling the caches.

Prior to this patch with CFG_WITH_PAGER=y the caches where only
invalidated until __init_end which isn't enough, memory up to
__tmp_hashes_end is actually touched. With this patch the range is
increased to __tmp_hashes_end which is the same as is used in the arm32
code.

Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey 32/64)
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Hikey 64-bit pager)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
    @jenswi-linaro
    jenswi-linaro committed Jun 20, 2017
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