Re: [Qemu-devel] [PATCH v3 24/28] riscv: sifive_u: Support loading initramfs

[Alistair Francis]

On Sun, Aug 11, 2019 at 1:17 AM Bin Meng <address@hidden> wrote:
>
> The loading of initramfs is currently not supported on 'sifive_u'.
> Add the support to make '-initrd' command line parameter useful.
>
> Signed-off-by: Bin Meng <address@hidden>
> Reviewed-by: Chih-Min Chao <address@hidden>

Reviewed-by: Alistair Francis <address@hidden>

Alistair

> ---
>
> Changes in v3: None
> Changes in v2: None
>
>  hw/riscv/sifive_u.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
> index e8bef44..b0026aa 100644
> --- a/hw/riscv/sifive_u.c
> +++ b/hw/riscv/sifive_u.c
> @@ -328,7 +328,18 @@ static void riscv_sifive_u_init(MachineState *machine)
>                                   memmap[SIFIVE_U_DRAM].base);
>
>      if (machine->kernel_filename) {
> -        riscv_load_kernel(machine->kernel_filename);
> +        uint64_t kernel_entry = riscv_load_kernel(machine->kernel_filename);
> +
> +        if (machine->initrd_filename) {
> +            hwaddr start;
> +            hwaddr end = riscv_load_initrd(machine->initrd_filename,
> +                                           machine->ram_size, kernel_entry,
> +                                           &start);
> +            qemu_fdt_setprop_cell(s->fdt, "/chosen",
> +                                  "linux,initrd-start", start);
> +            qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end",
> +                                  end);
> +        }
>      }
>
>      /* reset vector */
> --
> 2.7.4
>
>