hw/smbios: Use qapi for SmbiosEntryPointType

This prepares for exposing the SMBIOS entry point type as a
machine property on x86.

Based on a patch from Daniel P. Berrangé.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20211026151100.1691925-3-ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>

include/hw/firmware/smbios.h

@@ -1,6 +1,8 @@
 #ifndef QEMU_SMBIOS_H
 #define QEMU_SMBIOS_H
 
+#include "qapi/qapi-types-machine.h"
+
 /*
  * SMBIOS Support
  *
@@ -23,14 +25,6 @@ struct smbios_phys_mem_area {
     uint64_t length;
 };
 
-/*
- * SMBIOS spec defined tables
- */
-typedef enum SmbiosEntryPointType {
-    SMBIOS_ENTRY_POINT_TYPE_32,
-    SMBIOS_ENTRY_POINT_TYPE_64,
-} SmbiosEntryPointType;
-
 /* SMBIOS Entry Point
  * There are two types of entry points defined in the SMBIOS specification
  * (see below). BIOS must place the entry point(s) at a 16-byte-aligned

qapi/machine.json

@@ -1568,3 +1568,15 @@
 { 'command': 'x-query-usb',
   'returns': 'HumanReadableText',
   'features': [ 'unstable' ] }
+
+##
+# @SmbiosEntryPointType:
+#
+# @32: SMBIOS version 2.1 (32-bit) Entry Point
+#
+# @64: SMBIOS version 3.0 (64-bit) Entry Point
+#
+# Since: 7.0
+##
+{ 'enum': 'SmbiosEntryPointType',
+  'data': [ '32', '64' ] }