[PATCH for-7.2 v4 07/21] hw/ppc: set machine->fdt in xilinx_load_device_tree()

[Daniel Henrique Barboza]

This will enable support for 'dumpdtb' and 'info fdt' HMP commands for
the virtex_ml507 machine.

Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/ppc/virtex_ml507.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index 53b126ff48..9f4c5d85a4 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -45,6 +45,8 @@
 #include "hw/qdev-properties.h"
 #include "ppc405.h"
 
+#include <libfdt.h>
+
 #define EPAPR_MAGIC    (0x45504150)
 #define FLASH_SIZE     (16 * MiB)
 
@@ -153,6 +155,7 @@ static int xilinx_load_device_tree(hwaddr addr,
                                       hwaddr initrd_size,
                                       const char *kernel_cmdline)
 {
+    MachineState *machine = MACHINE(qdev_get_machine());
     char *path;
     int fdt_size;
     void *fdt = NULL;
@@ -197,7 +200,13 @@ static int xilinx_load_device_tree(hwaddr addr,
     if (r < 0)
         fprintf(stderr, "couldn't set /chosen/bootargs\n");
     cpu_physical_memory_write(addr, fdt, fdt_size);
-    g_free(fdt);
+
+    /*
+     * Update the machine->fdt pointer to enable support for
+     * 'dumpdtb' and 'info fdt' QMP/HMP commands.
+     */
+    machine->fdt = fdt;
+
     return fdt_size;
 }
 
-- 
2.37.2