I'm also interested in this option & raised it sometime last year. As a user, I don't have the skills necessary to do it, and was informed of the same conclusion.
However, I DID succeed in building a coreboot which contains both Tianocore & SeaBIOS separately, then using Grub to choose which payload to run. You might try that. R On Mon, Nov 16, 2020 at 8:39 AM Patrick Georgi via coreboot < coreboot@coreboot.org> wrote: > Am So., 15. Nov. 2020 um 19:43 Uhr schrieb Matt DeVillier < > matt.devill...@gmail.com>: > >> if it were as simple as building Tianocore with SeaBIOS as the CSM, that >> would be the default option offered, but unfortunately it's not. The >> neither Tianocore package (the default CorebootPayloadPkg, nor >> UefiPayloadPkg) has support for a CSM, like the emulator package (OmvhPkg). >> I maintain the default CorebootPayloadPkg, and have tried unsuccessfully to >> integrate SeaBIOS as a CSM, but I've also not put a ton of effort into it. >> If someone else manages to get it working, I'll gladly take a pull request >> on github >> > corebootPkg used to support CSM a long time ago. The remains are archived > at > https://code.georgi.software/patrick/corebootPkg/src/branch/coreboot-pkg/corebootPkg > (see > https://code.georgi.software/patrick/corebootPkg#user-content-csm-support > for some minimal documentation.) While I won't spend time reviving or > integrating it with the modern coreboot/edk2 bridges, it might serve as a > starting point for whoever is interested. Good luck. > > > Patrick > -- > Google Germany GmbH, ABC-Str. 19, 20354 Hamburg > Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: > Hamburg > Geschäftsführer: Paul Manicle, Halimah DeLaine Prado > _______________________________________________ > coreboot mailing list -- coreboot@coreboot.org > To unsubscribe send an email to coreboot-le...@coreboot.org >
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