Hi Christian, On Fri, 11 Jun 2021 at 23:59, Christian Melki <[email protected]> wrote: > > On 6/11/21 3:40 PM, Simon Glass wrote: > > +Heinrich Schuchardt > > > > Hi Christian, > > > > On Fri, 11 Jun 2021 at 07:30, Christian Melki > > <[email protected]> wrote: > >> > >> Hi. > >> > >> I have been trying to boot a bzImage with zboot from a VirtualBox UEFI > >> instance -> U-Boot UEFI payload. So far I've been using 2021.07-rc1. I'd > >> like to try a newer rc, but even if built exactly the same with the same > >> .config, newer won't boot as an UEFI payload. So right now, I'm stuck at > >> rc1. > >> > >> Anyway. > >> The kernel in question starts when configured with an EFI stub from the > >> UEFI shell. > >> > >> U-boot fails to boot the bzImage from the console using zboot though. > >> Just freezes after "Starting kernel..." > > > > We don't actually have tests for this in CI at present. > > > > I don't see any changes in the zboot stuff though. There is quite a > > bit in efi_loader. You could perhaps try a bisect. > > I can live with 2021.07-rc1 right now as it atleast starts as an UEFI > payload. > But my big issue is that I can't start the kernel with zboot. > Full debug build isn't that much more informative either. > I was thinking different load offsets, but mine seems pretty much > standard, so I don't know. I've played around a bit with configuration > on both halves, but it doesn't help. > > > > > Heinrich, do you have any ideas? > > > >> > >> zboot 01080000 - 04000000 319c000 > >> Valid Boot Flag > >> Magic signature found > >> Linux kernel version 5.12.0 (ptxdist@ptxdist) #2 SMP PREEMPT > >> 2021-06-01T00:00:00+00:00 > >> Building boot_params at 0x00090000 > >> Loading bzImage at address 100000 (6516096 bytes) > >> Initial RAM disk at linear address 0x04000000, size 52019200 bytes > >> Kernel command line: "console=ttyS0,115200 rw quiet" > >> Kernel loaded at 00100000, setup_base=00090000 > >> > >> Starting kernel ... > >> > >> Any ideas?
Can you make sure that U-Boot is not writing out SMBIOS or other tables? It should be letting the kernel use the ones written by UEFI I think. Also start linux with a serial console and early printk or whatever it is called these days. Regards, Simon
