diff options
| author | Marc Zyngier <[email protected]> | 2020-07-06 17:38:01 +0100 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2020-07-08 21:57:51 +0100 |
| commit | 4b661d6133c5d3a7c9aca0b4ee5a78c7766eff3f (patch) | |
| tree | 372b89e8c963ab143b3ce9fe90a4b3156f0de9c4 /tools/perf/scripts/python/flamegraph.py | |
| parent | c1fbec4ac0d701f350a581941d35643d5a9cd184 (diff) | |
arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040
ARM64_WORKAROUND_1418040 requires that AArch32 EL0 accesses to
the virtual counter register are trapped and emulated by the kernel.
This makes the vdso pretty pointless, and in some cases livelock
prone.
Provide a workaround entry that limits the vdso to 64bit tasks.
Signed-off-by: Marc Zyngier <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions