hmp: add info memdev

This is the hmp counterpart of qmp query-memdev.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

MST: fix build on 32 bit

3 files changed, 44 insertions, 0 deletions

diff --git a/hmp.c b/hmp.c
index ccc35d41a1..41006f5eef 100644
--- a/hmp.c
+++ b/hmp.c
@@ -22,6 +22,8 @@
 #include "qemu/sockets.h"
 #include "monitor/monitor.h"
 #include "qapi/opts-visitor.h"
+#include "qapi/string-output-visitor.h"
+#include "qapi-visit.h"
 #include "ui/console.h"
 #include "block/qapi.h"
 #include "qemu-io.h"
@@ -1676,3 +1678,37 @@ void hmp_object_del(Monitor *mon, const QDict *qdict)
     qmp_object_del(id, &err);
     hmp_handle_error(mon, &err);
 }
+
+void hmp_info_memdev(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+    MemdevList *memdev_list = qmp_query_memdev(&err);
+    MemdevList *m = memdev_list;
+    StringOutputVisitor *ov;
+    int i = 0;
+
+
+    while (m) {
+        ov = string_output_visitor_new(false);
+        visit_type_uint16List(string_output_get_visitor(ov),
+                              &m->value->host_nodes, NULL, NULL);
+        monitor_printf(mon, "memory device %d\n", i);
+        monitor_printf(mon, "  size:  %" PRId64 "\n", m->value->size);
+        monitor_printf(mon, "  merge: %s\n",
+                       m->value->merge ? "true" : "false");
+        monitor_printf(mon, "  dump: %s\n",
+                       m->value->dump ? "true" : "false");
+        monitor_printf(mon, "  prealloc: %s\n",
+                       m->value->prealloc ? "true" : "false");
+        monitor_printf(mon, "  policy: %s\n",
+                       HostMemPolicy_lookup[m->value->policy]);
+        monitor_printf(mon, "  host nodes: %s\n",
+                       string_output_get_string(ov));
+
+        string_output_visitor_cleanup(ov);
+        m = m->next;
+        i++;
+    }
+
+    monitor_printf(mon, "\n");
+}
diff --git a/hmp.h b/hmp.h
index 2d9b0a2b0b..4fd3c4a901 100644
--- a/hmp.h
+++ b/hmp.h
@@ -93,6 +93,7 @@ void hmp_qemu_io(Monitor *mon, const QDict *qdict);
 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 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/monitor.c b/monitor.c
index ca17e420a9..afbb2d7379 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2964,6 +2964,13 @@ static mon_cmd_t info_cmds[] = {
         .mhandler.cmd = hmp_info_tpm,
     },
     {
+        .name       = "memdev",
+        .args_type  = "",
+        .params     = "",
+        .help       = "show the memory device",
+        .mhandler.cmd = hmp_info_memdev,
+    },
+    {
         .name       = NULL,
     },
 };