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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2015-12-16 16:36:48 +0000 |
|---|---|---|
| committer | Daniel Thompson <daniel.thompson@linaro.org> | 2015-12-16 16:36:48 +0000 |
| commit | f13d98a9b1fd9440edddf2b0d8752018f2b5f56f (patch) | |
| tree | d453beeb0e4b381e9dbfc9dc20e07e389908911e /mm/hugetlb.c | |
| parent | 5d2b2d9c3a7d37a0b52701159593974e315b8ff8 (diff) | |
irqchip/gic: Identify and report any reserved SGI IDsdev/arm_backtrace_on_apq8064
It is possible for the secure world to reserve certain SGI IDs for itself.
Currently we have limited visibility of which IDs are safe to use for IPIs.
Modify the GIC initialization code to actively search for reserved SGI IDs
and report if any are found. Warn even more loudly if the reserved SGIs
overlap with the normal IPI range.
When run on an Inforce IFC6410 (Snapdragon 600) this code produces the
following messages:
~~~ cut here ~~~
CPU0: Detected reserved SGI IDs: 14-15
CPU1: Detected reserved SGI IDs: 15
CPU2: Detected reserved SGI IDs: 15
CPU3: Detected reserved SGI IDs: 15
~~~ cut here ~~~
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Diffstat (limited to 'mm/hugetlb.c')
0 files changed, 0 insertions, 0 deletions