Re: https://firmwaresecurity.com/2016/05/08/uefi-ported-to-risc-v/
Atish of Western Digital is using FWTS to test the RISC-V port of UEFI on Linux.
http://lists.infradead.org/pipermail/linux-riscv/2020-July/001248.html
https://wiki.ubuntu.com/FirmwareTestSuite
Colin of Canonical has updated FWTS to have a RISC-V port.