[PATCH] bootm: Pass SMP core ID and DTB address for ELF-formatted kernels

[Simon Glass]

+Heinrich Schuchardt

Hi,

On Tue, 13 May 2025 at 13:28, 牛 志宏 <Zone.Niuzh at hotmail.com> wrote:
>
> When booting RISC-V ELF-formatted kernel images (IH_TYPE_KERNEL + IH_OS_ELF),
> explicitly pass SMP core/hart ID and DTB address to comply with modern
> SMP-enabled kernels' boot protocol requirements.
>
> Signed-off-by: Zone.N <zone.niuzh at hotmail.com>
> ---
>  boot/bootm_os.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/boot/bootm_os.c b/boot/bootm_os.c
> index a3c7cb5332e..a0f310b1359 100644
> --- a/boot/bootm_os.c
> +++ b/boot/bootm_os.c
> @@ -402,6 +402,11 @@ static int do_bootm_elf(int flag, struct bootm_info *bmi)
>         if (flag != BOOTM_STATE_OS_GO)
>                 return 0;
>
> +#if defined(CONFIG_RISCV)
> +       bmi->argc = gd->arch.boot_hart;
> +       bmi->argv = (char **)bmi->images->ft_addr;
> +#endif

If this is a kernel, it should really be using a FIT.  The Elf entry
is for general ELF files, not Linux. Perhaps RISC-V is special in some
way?

> +
>         bootelf(bmi->images->ep, flags, bmi->argc, bmi->argv);
>
>         return 1;
> --
> 2.45.2

Regards,
Simon