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| author |   Suzuki K Poulose <suzuki.poulose@arm.com> | 2016-09-09 14:07:11 +0100 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2016-09-09 15:03:28 +0100 |
| commit | baa763b565386b1383b87b6fb76e72db84a0ff16 (patch) | |
| tree | 9c046ca20a4e8b7cbae0424a3ddf15cc8a5fac2a /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | arm64: Rearrange CPU errata workaround checks (diff) | |
| download | wireguard-linux-baa763b565386b1383b87b6fb76e72db84a0ff16.tar.xz wireguard-linux-baa763b565386b1383b87b6fb76e72db84a0ff16.zip | |
arm64: alternative: Disallow patching instructions using literals
The alternative code patching doesn't check if the replaced instruction
uses a pc relative literal. This could cause silent corruption in the
instruction stream as the instruction will be executed from a different
address than what it was compiled for. Catch all such cases.
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Suggested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions