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From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= <bjorn@kernel.org>
To: Puranjay Mohan <puranjay12@gmail.com>, Conor Dooley <conor@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann
 <daniel@iogearbox.net>, Andrii Nakryiko <andrii@kernel.org>, Martin KaFai
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 Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>,
 bpf@vger.kernel.org, linux-riscv@lists.infradead.org,
 linux-kernel@vger.kernel.org, Pu Lehui <pulehui@huaweicloud.com>, Manu
 Bretelle <chantra@meta.com>, Mykola Lysenko <mykolal@meta.com>, Nikolay
 Yurin <yurinnick@meta.com>
Subject: Re: [PATCH bpf-next v2 2/2] bpf,riscv: Implement
 bpf_addr_space_cast instruction
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Date: Mon, 25 Mar 2024 21:31:08 +0100
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Puranjay Mohan <puranjay12@gmail.com> writes:

> Is there a separate CI for RISCV related stuff? is it public?
>
> I would be interested in adding RISC-V support in
> https://github.com/kernel-patches/bpf
> Is someone already working on this?

+Cc Manu/Mykola/Nico who's doing all of the awesome BPF CI work at Meta,
and can keep me honest. ;-)

I did some early hacks for to add RISC-V support for the BPF CI, but
haven't had time to work on it recently. :-(

  [1] https://github.com/libbpf/ci/pull/87
  [2] https://github.com/kernel-patches/vmtest/pull/194

I've been talking recently to Lehui about it as well.

Two major things are missing:

1. Cross-compilation support (expand on [1])
2. Align the rootfs with what the other arch are using, to run the tests
   on Qemu/TCG (and proper HW at some point!). RISC-V does not have
   Debian Stable support, and would probably need Ubuntu or Debian Sid
   snapshop. Manu outlines some issues here:
   https://github.com/libbpf/ci/pull/83

Having to manually run BPF tests ("non-official RISC-V BPF CI") is a
mess!


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