This patch extends Spike machine support to allow loading OpenSBI
firmware (fw_jump.elf) separately using -bios option.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
---
 hw/riscv/spike.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index 8823681783..060a86f922 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -45,6 +45,12 @@
 
 #include <libfdt.h>
 
+#if defined(TARGET_RISCV32)
+# define BIOS_FILENAME "opensbi-riscv32-spike-fw_jump.elf"
+#else
+# define BIOS_FILENAME "opensbi-riscv64-spike-fw_jump.elf"
+#endif
+
 static const struct MemmapEntry {
     hwaddr base;
     hwaddr size;
@@ -183,8 +189,24 @@ static void spike_board_init(MachineState *machine)
     memory_region_add_subregion(system_memory, memmap[SPIKE_MROM].base,
                                 mask_rom);
 
+    riscv_find_and_load_firmware(machine, BIOS_FILENAME,
+                                 memmap[SPIKE_DRAM].base,
+                                 htif_symbol_callback);
+
     if (machine->kernel_filename) {
-        riscv_load_kernel(machine->kernel_filename, htif_symbol_callback);
+        uint64_t kernel_entry = riscv_load_kernel(machine->kernel_filename,
+                                                  htif_symbol_callback);
+
+        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 */
-- 
2.17.1

On Thu, Feb 13, 2020 at 11:22 PM Anup Patel <anup.patel@wdc.com> wrote:
>
> This patch extends Spike machine support to allow loading OpenSBI
> firmware (fw_jump.elf) separately using -bios option.
>
> Signed-off-by: Anup Patel <anup.patel@wdc.com>

Can you add something in the commit message adding that you also
support adding an initrd with this patch?

Otherwise:

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  hw/riscv/spike.c | 24 +++++++++++++++++++++++-
>  1 file changed, 23 insertions(+), 1 deletion(-)
>
> diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
> index 8823681783..060a86f922 100644
> --- a/hw/riscv/spike.c
> +++ b/hw/riscv/spike.c
> @@ -45,6 +45,12 @@
>
>  #include <libfdt.h>
>
> +#if defined(TARGET_RISCV32)
> +# define BIOS_FILENAME "opensbi-riscv32-spike-fw_jump.elf"
> +#else
> +# define BIOS_FILENAME "opensbi-riscv64-spike-fw_jump.elf"
> +#endif
> +
>  static const struct MemmapEntry {
>      hwaddr base;
>      hwaddr size;
> @@ -183,8 +189,24 @@ static void spike_board_init(MachineState *machine)
>      memory_region_add_subregion(system_memory, memmap[SPIKE_MROM].base,
>                                  mask_rom);
>
> +    riscv_find_and_load_firmware(machine, BIOS_FILENAME,
> +                                 memmap[SPIKE_DRAM].base,
> +                                 htif_symbol_callback);
> +
>      if (machine->kernel_filename) {
> -        riscv_load_kernel(machine->kernel_filename, htif_symbol_callback);
> +        uint64_t kernel_entry = riscv_load_kernel(machine->kernel_filename,
> +                                                  htif_symbol_callback);
> +
> +        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 */
> --
> 2.17.1
>
>