Hi Branden, On Mon, Nov 29, 2021 at 9:18 PM Branden Waldner <scruff...@gmail.com> wrote: > > I wasn't really sure that I wanted to comment on this, but seeing as > how I have some of the affected boards I guess I should.
Thank you very much. > Angel Pons wrote: > > Besides AMD AGESA boards, the other boards that need to be updated are > > AOpen DXPL > > Plus-U (a dual-socket server board that uses Netburst Xeons, no other board > > in the tree uses > > the same chipset code) and various Asus P2B boards (which support Pentium > > 2/3 CPUs, these > > boards are older than me). Even though I only know two people who still > > have some of these > > boards (and they don't have the same boards), they're still supported > > because the code has > > been maintained so far. > > I am one of the two with Asus P2B boards, with Keith Hui being the > other. I've got a P2B and a P2-99 and I believe Keith Hui has a > P2B-LS. > So far there have not been very many changes and Keith Hui and others > have worked on them, all I've done is test master and relevant patch > sets every once in a while. > I know I have not been uploading board_status results and I have not > gotten around to fixing the variant set up for the P2-99 so I'm not > uploading results that are uncertain about which board they are for. > Not really relevant, but I think it is pretty neat to be running > coreboot on boards older then some of the contributors. > > Mike Banon wrote: > > I am often build-testing my boards (didn't notice a > > https://review.coreboot.org/c/coreboot/+/59636 problem for a while, but > > only because I've been > > re-using the previously built toolchains to save time). Also, I am actively > > tech-supporting all the > > people who would like to build coreboot for AMD boards from this list, even > > right now I am in an > > active message exchange with >10 people who are switching to these boards > > to run coreboot > > on them - and any user may give back to the project one day. > > I actually have a few AMD boards and laptops that might be viable for > porting to, but I've never looked in to it much because of the state > support is in coreboot and the fact most of the hardware was actively > being used. > > Arthur Heymans wrote: > > The first one I'd like to deprecate is LEGACY_SMP_INIT. This also includes > > the codepath for > > SMM_ASEG. This code is used to start APs and do some feature programming on > > each AP, but > > also set up SMM. This has largely been superseded by PARALLEL_MP, which > > should be able > > to cover all use cases of LEGACY_SMP_INIT, with little code changes. The > > reason for > > deprecation is that having 2 codepaths to do the virtually the same > > increases maintenance > > burden on the community a lot, while also being rather confusing. > > > > A few things are lacking in PARALLEL_MP init: - Support for !CONFIG_SMP on > > single core > > systems. It's likely easy to extend PARALLEL_MP or write some code that > > just does CPU > > detection on the BSP CPU. - Support smm in the legacy ASEG (0xa0000 - > > 0xb0000) region. A > > POC showed that it's not that hard to do with PARALLEL_MP > > https://review.coreboot.org/c/coreboot/+/58700 > > I didn't even know that was a problem until now. I doubt there is much > I can do about it myself at this point in time, though I can try to > look through it I guess. Looks like Arthur has already implemented some changes to use PARALLEL_MP on i440bx. As of writing, the patches assume there's only one CPU (I already pointed out this is incorrect for boards with two CPU sockets/slots). I'd greatly appreciate if Keith and/or you could test them on actual hardware. The patches to apply, in order, are: https://review.coreboot.org/59694 https://review.coreboot.org/59695 https://review.coreboot.org/59692 https://review.coreboot.org/59693 > Branden Waldner > _______________________________________________ > coreboot mailing list -- coreboot@coreboot.org > To unsubscribe send an email to coreboot-le...@coreboot.org Best regards, Angel _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
