[v2,2/3] hw/riscv/spike: Allow loading firmware separately using -bios option

Commit Message

Anup Patel March 3, 2020, 2 p.m. UTC

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

Signed-off-by: Anup Patel <[e-mail]>
---
 hw/riscv/spike.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

Patch

diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index 5053fe4590..b0395e227c 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 */