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| author |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-03-17 10:55:12 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2015-03-19 19:46:02 +0000 |
| commit | da9c177de88679c2948dc9a5e2325b0dff4677b9 (patch) | |
| tree | 1ef1c5f3698aea6230899127fb1583ab55faa53c /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | arm64: remove __calc_phys_offset (diff) | |
| download | linux-dev-da9c177de88679c2948dc9a5e2325b0dff4677b9.tar.xz linux-dev-da9c177de88679c2948dc9a5e2325b0dff4677b9.zip | |
arm64: enforce x1|x2|x3 == 0 upon kernel entry as per boot protocol
According to the arm64 boot protocol, registers x1 to x3 should be
zero upon kernel entry, and non-zero values are reserved for future
use. This future use is going to be problematic if we never enforce
the current rules, so start enforcing them now, by emitting a warning
if non-zero values are detected.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions