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[Qemu-devel] [PATCH] spapr: add dumpdtb support


From: Andrew Jones
Subject: [Qemu-devel] [PATCH] spapr: add dumpdtb support
Date: Mon, 20 Jul 2015 15:19:24 +0200

dumpdtb (-machine dumpdtb=<file>) allows one to inspect the generated
device tree of machine types that generate device trees. This is
useful for a) seeing what's there b) debugging/testing device tree
generator patches. It can be used as follows

$QEMU_CMDLINE -machine dumpdtb=dtb
dtc -I dtb -O dts dtb

Signed-off-by: Andrew Jones <address@hidden>
---
 hw/ppc/spapr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index a6f19473cf278..c1cbf3387ae0c 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -30,6 +30,7 @@
 #include "hw/fw-path-provider.h"
 #include "elf.h"
 #include "net/net.h"
+#include "sysemu/device_tree.h"
 #include "sysemu/block-backend.h"
 #include "sysemu/cpus.h"
 #include "sysemu/kvm.h"
@@ -822,6 +823,7 @@ static void spapr_finalize_fdt(sPAPRMachineState *spapr,
         exit(1);
     }
 
+    qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
     cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt));
 
     g_free(bootlist);
-- 
2.4.3




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