[PATCH v2 02/10] hw/riscv/spike: use 'fdt' from MachineState

[Daniel Henrique Barboza <dbarboza@ventanamicro.com>]

The MachineState object provides a 'fdt' pointer that is already being
used by other RISC-V machines, and it's also used by the 'dumpdtb' QMP
command.

Remove the 'fdt' pointer from SpikeState and use MachineState::fdt
instead.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
---
 hw/riscv/spike.c         | 12 +++++-------
 include/hw/riscv/spike.h |  2 --
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index 1b747d8f7c..426c383cef 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -53,6 +53,7 @@ static void create_fdt(SpikeState *s, const MemMapEntry *memmap,
                        bool is_32_bit, bool htif_custom_base)
 {
     void *fdt;
+    int fdt_size;
     uint64_t addr, size;
     unsigned long clint_addr;
     int cpu, socket;
@@ -65,7 +66,7 @@ static void create_fdt(SpikeState *s, const MemMapEntry *memmap,
         "sifive,clint0", "riscv,clint0"
     };
 
-    fdt = s->fdt = create_device_tree(&s->fdt_size);
+    fdt = mc->fdt = create_device_tree(&fdt_size);
     if (!fdt) {
         error_report("create_device_tree() failed");
         exit(1);
@@ -322,18 +323,15 @@ static void spike_board_init(MachineState *machine)
         hwaddr end = riscv_load_initrd(machine->initrd_filename,
                                        machine->ram_size, kernel_entry,
                                        &start);
-        qemu_fdt_setprop_cell(s->fdt, "/chosen",
+        qemu_fdt_setprop_cell(machine->fdt, "/chosen",
                               "linux,initrd-start", start);
-        qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end",
+        qemu_fdt_setprop_cell(machine->fdt, "/chosen", "linux,initrd-end",
                               end);
     }
 
     /* Compute the fdt load address in dram */
     fdt_load_addr = riscv_load_fdt(memmap[SPIKE_DRAM].base,
-                                   machine->ram_size, s->fdt);
-
-    /* Set machine->fdt for 'dumpdtb' QMP/HMP command */
-    machine->fdt = s->fdt;
+                                   machine->ram_size, machine->fdt);
 
     /* load the reset vector */
     riscv_setup_rom_reset_vec(machine, &s->soc[0], memmap[SPIKE_DRAM].base,
diff --git a/include/hw/riscv/spike.h b/include/hw/riscv/spike.h
index 73d69234de..d13a147942 100644
--- a/include/hw/riscv/spike.h
+++ b/include/hw/riscv/spike.h
@@ -37,8 +37,6 @@ struct SpikeState {
 
     /*< public >*/
     RISCVHartArrayState soc[SPIKE_SOCKETS_MAX];
-    void *fdt;
-    int fdt_size;
 };
 
 enum {
-- 
2.38.1