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[bug#64907] [PATCH 0/2] gnu: Add rvvm support packages.
From: |
Juliana Sims |
Subject: |
[bug#64907] [PATCH 0/2] gnu: Add rvvm support packages. |
Date: |
Sat, 02 Sep 2023 21:42:48 -0400 |
Hi Vagrant,
> It could be a lot of work over time to maintain a patched version of
> u-boot and/or opensbi, especially if those patches are not going to
be
> merged upstream at some point...
I make a point of periodically updating and checking for the continued
functionality of all new packages I submit to Guix. There is a fair bit
of RISC-V work I would like to do over the next years so I would have
no problem extending this personal policy to these packages as well.
> How much faster? Knowing nothing about RVVM, When I asked on
> irc.libera.chat #riscv that was basically the question I got...
No idea, but having done a fair bit of RISC-V development on emulators,
I'm willing to take anything I can get XD
> Worked around how?
So, that turn of phrase was pretty arbitrary, but the sentiment I
wished to communicate is that I doubt most developers need Linux to be
tiny. I don't even understand *why* Linux needs to be shrunk for rvvm;
perhaps to minimize the disk space or memory given to it? If that's the
case, then the work-around would be to give it more disk and memory
from the host.
> Thinking a little more, from what I recall, the whole point of
> fw_jump.bin is so that you can dynamically specify the payload at
> runtime ... why do we need a separate fw_payload.bin created at
> build-time, if you can just pass a (potentially custom) payload at
> runtime?
As mentioned in the cover letter, you can drop the opensbi patch if you
like. I didn't think to test opensbi-generic before packaging this
patched version, and figured "waste not; want not." However, rvvm does
not work with any version of u-boot currently in Guix.
Hope this helps with any concerns. Let me know if I need to make any
changes to the patch(es).
Thanks,
Juli
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