[PATCH for-7.2 v2 12/20] hw/riscv: set machine->fdt in spike_board_init()

[Daniel Henrique Barboza]

This will enable support for 'dumpdtb' and 'info fdt' HMP commands for
the spike machine.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/riscv/spike.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index e41b6aa9f0..2909f7b2a1 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -40,6 +40,8 @@
 #include "sysemu/device_tree.h"
 #include "sysemu/sysemu.h"
 
+#include <libfdt.h>
+
 static const MemMapEntry spike_memmap[] = {
     [SPIKE_MROM] =     {     0x1000,     0xf000 },
     [SPIKE_HTIF] =     {  0x1000000,     0x1000 },
@@ -304,6 +306,15 @@ static void spike_board_init(MachineState *machine)
     /* Compute the fdt load address in dram */
     fdt_load_addr = riscv_load_fdt(memmap[SPIKE_DRAM].base,
                                    machine->ram_size, s->fdt);
+
+    /*
+     * Update the machine->fdt pointer to enable support for
+     * 'dumpdtb'and 'info fdt' commands. Use fdt_pack() to
+     * shrink the blob size we're going to store.
+     */
+    fdt_pack(s->fdt);
+    machine->fdt = s->fdt;
+
     /* load the reset vector */
     riscv_setup_rom_reset_vec(machine, &s->soc[0], memmap[SPIKE_DRAM].base,
                               memmap[SPIKE_MROM].base,
-- 
2.36.1