On Thu, Jun 12, 2025 at 09:08:50AM +0000, 牛 志宏 wrote: > When booting RISC-V ELF-formatted kernel images (IH_TYPE_KERNEL + IH_OS_ELF), > explicitly pass SMP hart ID (via a0/argc) and DTB address (via a1/argv) > to comply with modern SMP-enabled kernels' boot protocol requirements. > See https://www.kernel.org/doc/html/latest/arch/riscv/boot.html#register-state > > Signed-off-by: Zone.N <zone.ni...@hotmail.com> > --- > boot/bootm_os.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/boot/bootm_os.c b/boot/bootm_os.c > index a3c7cb5332e..d95477f1344 100644 > --- a/boot/bootm_os.c > +++ b/boot/bootm_os.c > @@ -402,6 +402,17 @@ static int do_bootm_elf(int flag, struct bootm_info *bmi) > if (flag != BOOTM_STATE_OS_GO) > return 0; > +/* > + * Required per RISC-V boot protocol: > + * a0(argc) = hartid of the current core > + * a1(argv) = address of the devicetree in memory > + * https://www.kernel.org/doc/html/latest/arch/riscv/boot.html#register-state > + */ > +#if defined(CONFIG_RISCV) > + bmi->argc = gd->arch.boot_hart; > + bmi->argv = (char **)bmi->images->ft_addr; > +#endif > + > bootelf(bmi->images->ep, flags, bmi->argc, bmi->argv); > return 1;
Something entirely ate the spacing, please repost, thanks. -- Tom
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