[PATCH v4 03/33] qom: Add memory-backend-epc ObjectOptions support

[Yang Zhong <yang.zhong@intel.com>]

Add the new 'memory-backend-epc' user creatable QOM object in
the ObjectOptions to support SGX since v6.1, or the sgx backend
object cannot bootup.

Signed-off-by: Yang Zhong <yang.zhong@intel.com>

v1-->v2:
   - Added the new MemoryBackendEpcProperties and related documents,
     and updated the blurb(Eric Blake).
---
 qapi/qom.json | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/qapi/qom.json b/qapi/qom.json
index 652be317b8..aba77aa97b 100644
--- a/qapi/qom.json
+++ b/qapi/qom.json
@@ -642,6 +642,23 @@
             '*hugetlbsize': 'size',
             '*seal': 'bool' } }
 
+##
+# @MemoryBackendEpcProperties:
+#
+# Properties for memory-backend-epc objects.
+#
+# The @share boolean option is true by default with epc
+#
+# The @merge boolean option is false by default with epc
+#
+# The @dump boolean option is false by default with epc
+#
+# Since: 6.1
+##
+{ 'struct': 'MemoryBackendEpcProperties',
+  'base': 'MemoryBackendProperties',
+  'data': {} }
+
 ##
 # @PrManagerHelperProperties:
 #
@@ -792,6 +809,7 @@
     { 'name': 'memory-backend-memfd',
       'if': 'defined(CONFIG_LINUX)' },
     'memory-backend-ram',
+    'memory-backend-epc',
     'pef-guest',
     'pr-manager-helper',
     'qtest',
@@ -850,6 +868,7 @@
       'memory-backend-memfd':       { 'type': 'MemoryBackendMemfdProperties',
                                       'if': 'defined(CONFIG_LINUX)' },
       'memory-backend-ram':         'MemoryBackendProperties',
+      'memory-backend-epc':         'MemoryBackendEpcProperties',
       'pr-manager-helper':          'PrManagerHelperProperties',
       'qtest':                      'QtestProperties',
       'rng-builtin':                'RngProperties',