On 16.01.20 14:14, Atish Patra wrote:
Sent from my iPhone
On Jan 16, 2020, at 10:06 PM, Alexander Graf <ag...@csgraf.de> wrote:
Hi Chester,
On 16.01.20 11:21, Chester Lin wrote:
Implement an initial version of riscv loader and related commands to load
and run linux kernel and initrd on RISC-V. I tested this series based on
the following configuration:
- QEMU 4.2.50 (machine: virt)
- OpenSBI v0.5-51
- U-Boot 2020.01-rc5
- grub 2.04
- linux-kernel v5.4
- openSUSE-Tumbleweed-20191103
Thanks a lot for tackling this problem - it's been on the back burner for way
too long :). Unfortunately this patch set loads grub via UEFI, but then does
not execute Linux using the UEFI protocol. While that's a nice hack for
starters, it severely limits the extensibility of the boot flow going forward.
IIRC either Anup or Atish wanted to work on a UEFI boot stub for Linux. We
could then just unify the ARM and RISC-V UEFI boot paths in grub and use that
common code to run Linux via the UEFI stub.
Yes. I am working on it. In fact, I got Linux kernel booting via bootefi
command last week. I have tried to use as much as ARM stub code possible which
will help in unifying them in future.
I am yet to add UEFI run time services. But I was thinking to post a RFC series
with EFI stub code first and work on run time services after that. Let me know
if you think that’s not a good idea.
I think that's a great idea. It will also unblock any work to move this
patch to boot using the UEFI protocol.
Alex
_______________________________________________
Grub-devel mailing list
Grub-devel@gnu.org
https://lists.gnu.org/mailman/listinfo/grub-devel
