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[v8,12/16] hw/ppc: set machine->fdt in pnv_reset()

Message ID 20220926173855.1159396-13-danielhb413@gmail.com
State Accepted
Headers show
Series QMP/HMP: introduce 'dumpdtb' | expand

Commit Message

Daniel Henrique Barboza Sept. 26, 2022, 5:38 p.m. UTC 
This will enable support for the 'dumpdtb' QMP/HMP command for
all powernv machines.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/ppc/pnv.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 354aa289d1..6a20c4811f 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -678,7 +678,13 @@  static void pnv_reset(MachineState *machine)
     qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
     cpu_physical_memory_write(PNV_FDT_ADDR, fdt, fdt_totalsize(fdt));
 
-    g_free(fdt);
+    /*
+     * Set machine->fdt for 'dumpdtb' QMP/HMP command. Free
+     * the existing machine->fdt to avoid leaking it during
+     * a reset.
+     */
+    g_free(machine->fdt);
+    machine->fdt = fdt;
 }
 
 static ISABus *pnv_chip_power8_isa_create(PnvChip *chip, Error **errp)