A machine defined with the DEFINE_MACHINE_ARM_AARCH64() macro
will be available on qemu-system-arm and qemu-system-aarch64
binaries.

One defined with DEFINE_MACHINE_AARCH64() will only be available
in the qemu-system-aarch64 binary.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 include/hw/arm/machines-qom.h | 13 +++++++++++++
 target/arm/machine.c          | 12 ++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/include/hw/arm/machines-qom.h b/include/hw/arm/machines-qom.h
index a17225f5f92..6277ee986d9 100644
--- a/include/hw/arm/machines-qom.h
+++ b/include/hw/arm/machines-qom.h
@@ -9,10 +9,23 @@
 #ifndef HW_ARM_MACHINES_QOM_H
 #define HW_ARM_MACHINES_QOM_H
 
+#include "hw/boards.h"
+
 #define TYPE_TARGET_ARM_MACHINE \
         "target-info-arm-machine"
 
 #define TYPE_TARGET_AARCH64_MACHINE \
         "target-info-aarch64-machine"
 
+extern InterfaceInfo arm_aarch64_machine_interfaces[];
+extern InterfaceInfo aarch64_machine_interfaces[];
+
+#define DEFINE_MACHINE_ARM_AARCH64(namestr, machine_initfn) \
+        DEFINE_MACHINE_WITH_INTERFACES(namestr, machine_initfn, \
+                                       arm_aarch64_machine_interfaces)
+
+#define DEFINE_MACHINE_AARCH64(namestr, machine_initfn) \
+        DEFINE_MACHINE_WITH_INTERFACES(namestr, machine_initfn, \
+                                       aarch64_machine_interfaces)
+
 #endif
diff --git a/target/arm/machine.c b/target/arm/machine.c
index 978249fb71b..193c7a9cff0 100644
--- a/target/arm/machine.c
+++ b/target/arm/machine.c
@@ -8,6 +8,7 @@
 #include "cpu-features.h"
 #include "migration/cpu.h"
 #include "target/arm/gtimer.h"
+#include "hw/arm/machines-qom.h"
 
 static bool vfp_needed(void *opaque)
 {
@@ -1111,3 +1112,14 @@ const VMStateDescription vmstate_arm_cpu = {
         NULL
     }
 };
+
+InterfaceInfo arm_aarch64_machine_interfaces[] = {
+    { TYPE_TARGET_ARM_MACHINE },
+    { TYPE_TARGET_AARCH64_MACHINE },
+    { }
+};
+
+InterfaceInfo aarch64_machine_interfaces[] = {
+    { TYPE_TARGET_AARCH64_MACHINE },
+    { }
+};
-- 
2.47.1


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