Hi, On Sun, Oct 18, 2026 at 11:12 AM Peter Robinson <[email protected]> wrote: > > On Sun, 18 Oct 2026 at 05:24, Anirudh Srinivasan > <[email protected]> wrote: > > > > This series contains a bunch of mischallaneous fixes to the BIOSEMU > > codebase to get display output working in u-boot using an Aspeed AST2600 > > PCIE VGA card on a RISC-V system that doesn't support I/O ports. This > > was tested by passing the card through to a qemu riscv64 VM, but should > > work on any board supporting PCIe in u-boot. > > Why are you using BIOS emulation for display output? Why not just use > the EFI native frame buffer support?
I don't think u-boot supports running EFI option ROMs, and I think that most GPUs don't ship with those for RISC-V anyway. U-boot does have support for running legacy VBIOSes, and also supports emulating these on non x86 architectures. This patch series is just a bunch of fixes to that codebase that were needed to get it working in my system.
