Re: [PATCH v11 39/40] kselftest/arm64: Add coverage for the ZA ptrace interface

On Mon, Feb 07, 2022 at 03:21:08PM +0000, Mark Brown wrote:

Add some basic coverage for the ZA ptrace interface, including walking through all the vector lengths supported in the system. Unlike SVE doing syscalls does not discard the ZA state so when we set data in ZA we run the child process briefly, having it add one to each byte in ZA in order to validate that both the vector size and data are being read and written as expected when the process runs.

Signed-off-by: Mark Brown broonie@kernel.org

Acked-by: Catalin Marinas catalin.marinas@arm.com