The restoring of TPIDR2 signal context has been broken since it was merged, fix this and add a test case covering it. This is a result of TPIDR2 context management following a different flow to any of the other state that we provide and the fact that we don't expose TPIDR (which follows the same pattern) to signals.
Signed-off-by: Mark Brown broonie@kernel.org --- Changes in v2: - Added a feature check for SME to the new test. - Link to v1: https://lore.kernel.org/r/20230621-arm64-fix-tpidr2-signal-restore-v1-0-b6d9...
--- Mark Brown (2): arm64/signal: Restore TPIDR2 register rather than memory state kselftest/arm64: Add a test case for TPIDR2 restore
arch/arm64/kernel/signal.c | 2 +- tools/testing/selftests/arm64/signal/.gitignore | 2 +- .../arm64/signal/testcases/tpidr2_restore.c | 86 ++++++++++++++++++++++ 3 files changed, 88 insertions(+), 2 deletions(-) --- base-commit: 858fd168a95c5b9669aac8db6c14a9aeab446375 change-id: 20230621-arm64-fix-tpidr2-signal-restore-713d93798f99
Best regards,