[v5] QMP/HMP: introduce 'dumpdtb'

[PATCH v5 02/14] hw/microblaze: set machine->fdt in microblaze_load_dtb()

Daniel Henrique Barboza posted 14 patches 3 years, 5 months ago

Diff against v6 v7 v8
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Maintainers: "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>, BALATON Zoltan <balaton@eik.bme.hu>, "Cédric Le Goater" <clg@kaod.org>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, Alistair Francis <Alistair.Francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Palmer Dabbelt <palmer@dabbelt.com>, Max Filippov <jcmvbkbc@gmail.com>, Markus Armbruster <armbru@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Yanan Wang <wangyanan55@huawei.com>, Eric Blake <eblake@redhat.com>

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[PATCH v5 02/14] hw/microblaze: set machine->fdt in microblaze_load_dtb()

Posted by Daniel Henrique Barboza 3 years, 5 months ago

This will enable support for 'dumpdtb' QMP/HMP command for all
microblaze machines that uses microblaze_load_dtb().

Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/microblaze/boot.c      | 8 +++++++-
 hw/microblaze/meson.build | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/hw/microblaze/boot.c b/hw/microblaze/boot.c
index 8b92a9801a..c8eff7b6fc 100644
--- a/hw/microblaze/boot.c
+++ b/hw/microblaze/boot.c
@@ -39,6 +39,8 @@
 
 #include "boot.h"
 
+#include <libfdt.h>
+
 static struct
 {
     void (*machine_cpu_reset)(MicroBlazeCPU *);
@@ -72,6 +74,7 @@ static int microblaze_load_dtb(hwaddr addr,
                                const char *kernel_cmdline,
                                const char *dtb_filename)
 {
+    MachineState *machine = MACHINE(qdev_get_machine());
     int fdt_size;
     void *fdt = NULL;
     int r;
@@ -100,7 +103,10 @@ static int microblaze_load_dtb(hwaddr addr,
     }
 
     cpu_physical_memory_write(addr, fdt, fdt_size);
-    g_free(fdt);
+
+    /* Set machine->fdt for 'dumpdtb' QMP/HMP command */
+    machine->fdt = fdt;
+
     return fdt_size;
 }
 
diff --git a/hw/microblaze/meson.build b/hw/microblaze/meson.build
index bb9e4eb8f4..a38a397872 100644
--- a/hw/microblaze/meson.build
+++ b/hw/microblaze/meson.build
@@ -1,5 +1,5 @@
 microblaze_ss = ss.source_set()
-microblaze_ss.add(files('boot.c'))
+microblaze_ss.add(files('boot.c'), fdt)
 microblaze_ss.add(when: 'CONFIG_PETALOGIX_S3ADSP1800', if_true: files('petalogix_s3adsp1800_mmu.c'))
 microblaze_ss.add(when: 'CONFIG_PETALOGIX_ML605', if_true: files('petalogix_ml605_mmu.c'))
 microblaze_ss.add(when: 'CONFIG_XLNX_ZYNQMP_PMU', if_true: files('xlnx-zynqmp-pmu.c'))
-- 
2.37.2