On Tue, Jun 11, 2024 at 02:29:38PM +0100, Jiaxun Yang wrote: > > > 在2024年6月11日六月 下午2:02，Heinrich Schuchardt写道： > > On 22.05.24 17:34, Jiaxun Yang wrote: > >> For LoongArch the start of the image is not the entry > >> point to the image. > > > > Looking at arch/loongarch/kernel/head.S there seem to be two cases: > > > > * The kernel has an EFI stub (CONFIG_EFI_STUB=y). > > The legacy physical entry point is available at offset 0x08 of the > > header. > > * The kernel has no EFI stub. > > The kernel entry point matches the start of the image. > > > > Where do you differentiate between the cases? > > Hi Heinrich, > > In case there is no EFI stub LoongArch would use elf format vmlinux, there > is no real "raw" image for us. > > bootelf can't be used at the moment as it doesn't setup FDT and other > environments > properly. > > I'm planning to implement a bootlinuxelf command for this case, as MIPS, > LoongArch, > xtensa are all using ELF as default kernel image format.
Please note that we have CONFIG_CMD_ELF_FDT_SETUP already, so adjusting things so that bootelf works for this case should be doable without a new command. -- Tom
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