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From: Pratyush Yadav <pratyush@kernel.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>,  Pratyush Yadav
 <pratyush@kernel.org>,  Jordan Richards <jordanrichards@google.com>,
  Shuah Khan <shuah@kernel.org>,  Thomas =?utf-8?Q?Wei=C3=9Fschuh?=
 <linux@weissschuh.net>,
  Willy Tarreau <w@1wt.eu>,  linux-kernel@vger.kernel.org,
  linux-kselftest@vger.kernel.org,  kexec@lists.infradead.org
Subject: Re: [PATCH v4] selftests/liveupdate: add end to end test
 infrastructure and scripts
In-Reply-To: <20260626-luo-vmtest-v0-v4-1-e7d3111cd5b3@kernel.org> (Mike
	Rapoport's message of "Fri, 26 Jun 2026 12:15:36 +0300")
References: <20260626-luo-vmtest-v0-v4-1-e7d3111cd5b3@kernel.org>
Date: Fri, 26 Jun 2026 11:49:44 +0200
Message-ID: <2vxz7bnlljgn.fsf@kernel.org>
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On Fri, Jun 26 2026, Mike Rapoport wrote:

> From: Pasha Tatashin <pasha.tatashin@soleen.com>
>
> 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.
>
> vmtest.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-vmtests.sh:
> A wrapper that runs vmtest.sh for each LUO test across supported
> architectures, providing a summary of pass/fail/skip results.
>
> Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
> Co-developed-by: Jordan Richards <jordanrichards@google.com>
> Signed-off-by: Jordan Richards <jordanrichards@google.com>
> Co-developed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
> Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>

Acked-by: Pratyush Yadav <pratyush@kernel.org>

[...]

-- 
Regards,
Pratyush Yadav