diff mbox series

[v6,04/14] hw/ppc: set machine->fdt in ppce500_load_device_tree()

Message ID 20220904233456.209027-5-danielhb413@gmail.com
State New
Headers show
Series QMP/HMP: introduce 'dumpdtb' | expand

Commit Message

Daniel Henrique Barboza Sept. 4, 2022, 11:34 p.m. UTC 
This will enable support for 'dumpdtb' QMP/HMP command for the e500
machine.

Cc: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/ppc/e500.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 32495d0123..ea5f947824 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -47,6 +47,8 @@ 
 #include "hw/i2c/i2c.h"
 #include "hw/irq.h"
 
+#include <libfdt.h>
+
 #define EPAPR_MAGIC                (0x45504150)
 #define DTC_LOAD_PAD               0x1800000
 #define DTC_PAD_MASK               0xFFFFF
@@ -600,7 +602,16 @@  done:
         cpu_physical_memory_write(addr, fdt, fdt_size);
     }
     ret = fdt_size;
-    g_free(fdt);
+
+    /*
+     * Update the machine->fdt pointer to enable support for the
+     * 'dumpdtb' QMP/HMP command.
+     *
+     * The FDT is re-created during reset, so free machine->fdt
+     * to avoid leaking the old FDT.
+     */
+    g_free(machine->fdt);
+    machine->fdt = fdt;
 
 out:
     g_free(pci_map);