linux-kernel - Re: [PATCH v7 00/10] livepatch: klp-convert tool

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Date:   Wed, 19 Apr 2023 17:27:58 -0300
From:   Marcos Paulo de Souza <mpdesouza@...e.de>
To:     Joe Lawrence <joe.lawrence@...hat.com>
Cc:     live-patching@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kbuild@...r.kernel.org, Josh Poimboeuf <jpoimboe@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Petr Mladek <pmladek@...e.com>,
        Marcos Paulo de Souza <mpdesouza@...e.com>
Subject: Re: [PATCH v7 00/10] livepatch: klp-convert tool

> Testing
> -------
> 
> The patchset selftests build and execute on x86_64, s390x, and ppc64le
> for both default config (with added livepatch dependencies) and a larger
> RHEL-9-ish config.
> 
> Using the Intel's Linux Kernel Performance tests's make.cross,
> klp-convert builds and processes livepatch .ko's for x86_64 ppc64le
> ppc32 s390 arm64 arches.
> 

So I tested using real x86 livepatches, and it worked as expected. The test was
done by taking the livepatches, removing all externalized variables (those that
we need to call kallsyms_lookup), and compiling as usual and using
klp-convert to create the necessary relocation entries.

I'll keep testing with more livepatches for now on, and let you know if I find
any issue.