Add missing barriers to Bakery Locks

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LuminaSensum / arm-trusted-firmware

Browse code Add missing barriers to Bakery Locks With the current implementation, it's possible for a contender to observe accesses in the Critical Section before acquiring or releasing the lock. Insert fencing in the locking and release codes to prevent any reorder. Fixes ARM-software/tf-issues#609 Change-Id: I773b82aa41dd544a2d3dbacb9a4b42c9eb767bbb Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com> WIP_v2.3-LS master v2.2-LS v2.4-LS v2.3-rc2 v2.3-rc1 v2.3-rc0 v2.3 v2.2-rc2 v2.2-rc1 v2.2-rc0 v2.2 v2.1-rc1 v2.1-rc0 v2.1 v2.0-rc0 v2.0 v1.6-rc1 v1.6-rc0 v1.6
1 parent e43422b commit 24dc97091532751ea810e99bd5a9be33514decf6 Jeenu Viswambharan authored on 8 Aug 2018

Browse code

With the current implementation, it's possible for a contender to
observe accesses in the Critical Section before acquiring or releasing
the lock. Insert fencing in the locking and release codes to prevent any
reorder.

Fixes ARM-software/tf-issues#609

Change-Id: I773b82aa41dd544a2d3dbacb9a4b42c9eb767bbb
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

WIP_v2.3-LS master v2.2-LS v2.4-LS v2.3-rc2 v2.3-rc1 v2.3-rc0 v2.3 v2.2-rc2 v2.2-rc1 v2.2-rc0 v2.2 v2.1-rc1 v2.1-rc0 v2.1 v2.0-rc0 v2.0 v1.6-rc1 v1.6-rc0 v1.6

1 parent e43422b commit 24dc97091532751ea810e99bd5a9be33514decf6

Jeenu Viswambharan authored on 8 Aug 2018

Patch

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Ignore Space Show notes View lib/locks/bakery/bakery_lock_coherent.c

Ignore Space Show notes View lib/locks/bakery/bakery_lock_normal.c

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