[PATCH] kunit: qemu_configs: Enable all architectural features for arm64

[David Gow]

On Thu, 13 Jul 2023 at 04:23, Mark Brown <broonie at kernel.org> wrote:
>
> While it probably doesn't make a huge difference given the current KUnit
> coverage we will get the best coverage of arm64 architecture features if
> we specify -cpu=max rather than picking a specific CPU, this will include
> all architecture features that qemu supports including many which have not
> yet made it into physical implementations.
>
> Due to performance issues emulating the architected pointer authentication
> algorithm it is recommended to use the implementation defined algorithm
> that qemu has instead, this should make no meaningful difference to the
> coverage and will run the tests faster.
>
> Signed-off-by: Mark Brown <broonie at kernel.org>
> ---

Looks good and works for me here, thanks.

Reviewed-by: David Gow <davidgow at google.com>

Cheers,
-- David


>  tools/testing/kunit/qemu_configs/arm64.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/kunit/qemu_configs/arm64.py b/tools/testing/kunit/qemu_configs/arm64.py
> index 67d04064f785..d3ff27024755 100644
> --- a/tools/testing/kunit/qemu_configs/arm64.py
> +++ b/tools/testing/kunit/qemu_configs/arm64.py
> @@ -9,4 +9,4 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y''',
>                            qemu_arch='aarch64',
>                            kernel_path='arch/arm64/boot/Image.gz',
>                            kernel_command_line='console=ttyAMA0',
> -                          extra_qemu_params=['-machine', 'virt', '-cpu', 'cortex-a57'])
> +                          extra_qemu_params=['-machine', 'virt', '-cpu', 'max,pauth-impdef=on'])
>
> ---
> base-commit: 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5
> change-id: 20230702-kunit-arm64-cpu-max-7e3aa5f02fb2
>
> Best regards,
> --
> Mark Brown <broonie at kernel.org>
>
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