[Qemu-devel] [PATCH v2 24/28] riscv: sifive_u: Support loading initramfs

[Bin Meng <bmeng.cn@gmail.com>]

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 <bmeng.cn@gmail.com>
---

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 ce6eba5..30e6c43 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