Re: [RFC PATCH] tests/avocado: retire the Aarch64 TCG tests from boot_linux.py

[Fabiano Rosas <farosas@suse.de>]

Alex Bennée <alex.bennee@linaro.org> writes:

> The two TCG tests for GICv2 and GICv3 are very heavy weight distros
> that take a long time to boot up, especially for an --enable-debug
> build. The total code coverage they give is:
>
>   Overall coverage rate:
>     lines......: 11.2% (59584 of 530123 lines)
>     functions..: 15.0% (7436 of 49443 functions)
>     branches...: 6.3% (19273 of 303933 branches)
>
> We already get pretty close to that with the machine_aarch64_virt
> tests which only does one full boot (~120s vs ~600s) of alpine. We
> expand the kernel+initrd boot (~8s) to test both GICs and also add an
> RNG device and a block device to generate a few IRQs and exercise the
> storage layer. With that we get to a coverage of:
>
>   Overall coverage rate:
>     lines......: 11.0% (58121 of 530123 lines)
>     functions..: 14.9% (7343 of 49443 functions)
>     branches...: 6.0% (18269 of 303933 branches)
>
> which I feel is close enough given the massive time saving. If we want
> to target any more sub-systems we can use lighter weight more directed
> tests.
>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Cc: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Fabiano Rosas <farosas@suse.de>