[Qemu-devel] [RFC PATCH 4/5] bootindex: add qmp to set boot index when vm is running

[arei.gonglei]

From: Chenliang <address@hidden>

Signed-off-by: Chenliang <address@hidden>
Signed-off-by: Gonglei <address@hidden>
---
 hmp.c            | 11 +++++++++++
 hmp.h            |  1 +
 qapi-schema.json | 16 ++++++++++++++++
 qmp-commands.hx  | 16 ++++++++++++++++
 qmp.c            | 14 ++++++++++++++
 5 files changed, 58 insertions(+)

diff --git a/hmp.c b/hmp.c
index dc3d279..b2c6b6c 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1713,3 +1713,14 @@ void hmp_info_memdev(Monitor *mon, const QDict *qdict)
 
     monitor_printf(mon, "\n");
 }
+
+void hmp_set_bootindex(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+    const char *id = qdict_get_str(qdict, "id");
+    int64_t bootindex = qdict_get_int(qdict, "bootindex");
+    char *suffix = qdict_get_try_str(qdict, "suffix");
+
+    qmp_set_bootindex(id, bootindex, suffix, &err);
+    hmp_handle_error(mon, &err);
+}
diff --git a/hmp.h b/hmp.h
index 4fd3c4a..eb2641a 100644
--- a/hmp.h
+++ b/hmp.h
@@ -94,6 +94,7 @@ void hmp_cpu_add(Monitor *mon, const QDict *qdict);
 void hmp_object_add(Monitor *mon, const QDict *qdict);
 void hmp_object_del(Monitor *mon, const QDict *qdict);
 void hmp_info_memdev(Monitor *mon, const QDict *qdict);
+void hmp_set_bootindex(Monitor *mon, const QDict *qdict);
 void object_add_completion(ReadLineState *rs, int nb_args, const char *str);
 void object_del_completion(ReadLineState *rs, int nb_args, const char *str);
 void device_add_completion(ReadLineState *rs, int nb_args, const char *str);
diff --git a/qapi-schema.json b/qapi-schema.json
index e7727a1..b414cae 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1694,6 +1694,22 @@
 { 'command': 'device_del', 'data': {'id': 'str'} }
 
 ##
+# @set_bootindex:
+#
+# set bootindex of a devcie
+#
+# @id: the name of the device
+# @bootindex: the bootindex of the device
+# @suffix: the suffix of the device
+#
+# Returns: Nothing on success
+#          If @id is not a valid device, DeviceNotFound
+#
+# Since: 2.1
+##
+{ 'command': 'set_bootindex', 'data': {'id': 'str', 'bootindex': 'int', 
'suffix': 'str'} }
+
+##
 # @DumpGuestMemoryFormat:
 #
 # An enumeration of guest-memory-dump's format.
diff --git a/qmp-commands.hx b/qmp-commands.hx
index e4a1c80..03645b6 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -3661,3 +3661,19 @@ Example:
                  { "slot": "3", "slot-type": "DIMM", "source": 0, "status": 0}
    ]}
 EQMP
+
+SQMP
address@hidden
+--------------------
+
+Set boot index of one device
+
+Example:
+-> { "execute": "set-bootindex", "arguments": { "id": "ide0-0-1", "bootindex": 
1, "suffix": "/address@hidden"}}
+
+EQMP
+    {
+        .name       = "set-bootindex",
+        .args_type  = "id:s,bootindex:l,suffix:s?",
+        .mhandler.cmd_new = qmp_marshal_input_set_bootindex,
+    },
diff --git a/qmp.c b/qmp.c
index dca6efb..5ac9401 100644
--- a/qmp.c
+++ b/qmp.c
@@ -659,3 +659,17 @@ ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
 
     return head;
 }
+
+void qmp_set_bootindex(const char *id, int64_t bootindex,
+                       const char *suffix, Error **errp)
+{
+    DeviceState *dev;
+
+    dev = qdev_find_recursive(sysbus_get_default(), id);
+    if (NULL == dev) {
+        error_set(errp, QERR_DEVICE_NOT_FOUND, id);
+        return;
+    }
+
+    modify_boot_device_path(bootindex, dev, strlen(suffix) ? suffix : NULL);
+}
-- 
1.7.12.4