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| author | Daniel Kiss <[email protected]> | 2021-06-13 09:26:32 +0000 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2021-06-15 10:32:31 +0000 |
| commit | d053e71ac8442d4fd24fb85591489813cdb56365 (patch) | |
| tree | 442db612f4fa71991b35f56b2a3e683da4211702 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | arm64: Add ARM64_PTR_AUTH_KERNEL config option (diff) | |
| download | kernel-d053e71ac8442d4fd24fb85591489813cdb56365.tar.gz kernel-d053e71ac8442d4fd24fb85591489813cdb56365.zip | |
arm64: Conditionally configure PTR_AUTH key of the kernel.
If the kernel is not compiled with CONFIG_ARM64_PTR_AUTH_KERNEL=y,
then no PACI/AUTI instructions are expected while the kernel is running
so the kernel's key will not be used. Write of a system registers
is expensive therefore avoid if not required.
Signed-off-by: Daniel Kiss <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions