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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-07-29 12:18:34 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-08-02 15:20:26 +0100 |
| commit | c5cc87fa8ddf971682fc5dd112e2dfacb11f30cd (patch) | |
| tree | 58fbb35b4c2fe14941c7d8c21f2053cf46addbd7 /kernel/task_work.c | |
| parent | 811a2407a3cf7bbd027fbe92d73416f17485a3d8 (diff) | |
ARM: idmap: add identity mapping usage note
Add a note about the usage of the identity mapping; we do not support
accesses outside of the identity map region and kernel image while a
CPU is using the identity map. This is because the identity mapping
may overwrite vmalloc space, IO mappings, the vectors pages, etc.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'kernel/task_work.c')
0 files changed, 0 insertions, 0 deletions