Re: [PATCH v2 2/2] selftests/liveupdate: add end to end test infrastructure and scripts

[Pratyush Yadav]

On Sun, Feb 08 2026, Mike Rapoport wrote:

> Hi Jordan,
>
> On Thu, Feb 05, 2026 at 10:23:29PM +0000, Jordan Richards wrote:
>> From: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
>> 
>> Add the end to end testing infrastructure required to verify the
>> liveupdate feature. This includes a custom init process, a test
>> orchestration script, and a batch runner.
>> 
>> The framework consists of:
>> 
>> init.c:
>> A lightweight init process that manages the kexec lifecycle.
>> It mounts necessary filesystems, determines the current execution
>> stage (1 or 2) via the kernel command line, and handles the
>> kexec_file_load() sequence to transition between kernels.
>> 
>> luo_test.sh:
>> The primary KTAP-compliant test driver. It handles:
>> - Kernel configuration merging and building.
>> - Cross-compilation detection for x86_64 and arm64.
>> - Generation of the initrd containing the test binary and init.
>> - QEMU execution with automatic accelerator detection (KVM, HVF,
>>  or TCG).
>> 
>> run.sh:
>> A wrapper script to discover and execute all `luo_*.c`
>> tests across supported architectures, providing a summary of
>> pass/fail/skip results.
>> 
>> Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
>
> I think you also need 
> Co-developed-by: Jordan Richards <jordanrichards@xxxxxxxxxx>
>
>> Signed-off-by: Jordan Richards <jordanrichards@xxxxxxxxxx>
>
> With nolibc fixes Thomas requested:
>
> Reviewed-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>

I didn't look too closely, but at a quick skim, LGTM.

Acked-by: Pratyush Yadav (Google) <pratyush@xxxxxxxxxx>

-- 
Regards,
Pratyush Yadav