[PATCH v4 07/12] hmp: add cryptodev info command

[zhenwei pi <pizhenwei@bytedance.com>]

Example of this command:
 # virsh qemu-monitor-command vm --hmp info cryptodev
cryptodev1: service=[akcipher|mac|hash|cipher]
    queue 0: type=builtin
cryptodev0: service=[akcipher]
    queue 0: type=lkcf

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
---
 hmp-commands-info.hx  | 14 ++++++++++++++
 include/monitor/hmp.h |  1 +
 monitor/hmp-cmds.c    | 37 +++++++++++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+)

diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index 754b1e8408..47d63d26db 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -993,3 +993,17 @@ SRST
   ``info virtio-queue-element`` *path* *queue* [*index*]
     Display element of a given virtio queue
 ERST
+
+    {
+        .name       = "cryptodev",
+        .args_type  = "",
+        .params     = "",
+        .help       = "show the crypto devices",
+        .cmd        = hmp_info_cryptodev,
+        .flags      = "p",
+    },
+
+SRST
+  ``info cryptodev``
+    Show the crypto devices.
+ERST
diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h
index 1b3bdcb446..391a097ffd 100644
--- a/include/monitor/hmp.h
+++ b/include/monitor/hmp.h
@@ -151,5 +151,6 @@ void hmp_human_readable_text_helper(Monitor *mon,
                                     HumanReadableText *(*qmp_handler)(Error **));
 void hmp_info_stats(Monitor *mon, const QDict *qdict);
 void hmp_pcie_aer_inject_error(Monitor *mon, const QDict *qdict);
+void hmp_info_cryptodev(Monitor *mon, const QDict *qdict);
 
 #endif
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 1dba973092..cda52c2526 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -33,6 +33,7 @@
 #include "qapi/qapi-commands-block.h"
 #include "qapi/qapi-commands-char.h"
 #include "qapi/qapi-commands-control.h"
+#include "qapi/qapi-commands-cryptodev.h"
 #include "qapi/qapi-commands-machine.h"
 #include "qapi/qapi-commands-migration.h"
 #include "qapi/qapi-commands-misc.h"
@@ -2280,3 +2281,39 @@ void hmp_virtio_queue_element(Monitor *mon, const QDict *qdict)
 
     qapi_free_VirtioQueueElement(e);
 }
+
+void hmp_info_cryptodev(Monitor *mon, const QDict *qdict)
+{
+    QCryptodevInfoList *il;
+    QCryptodevBackendServiceTypeList *sl;
+    QCryptodevBackendClientList *cl;
+
+    for (il = qmp_query_cryptodev(NULL); il; il = il->next) {
+        g_autofree char *services = NULL;
+        QCryptodevInfo *info = il->value;
+        char *tmp_services;
+
+        /* build a string like 'service=[akcipher|mac|hash|cipher]' */
+        for (sl = info->service; sl; sl = sl->next) {
+            const char *service = QCryptodevBackendServiceType_str(sl->value);
+
+            if (!services) {
+                services = g_strdup(service);
+            } else {
+                tmp_services = g_strjoin("|", services, service, NULL);
+                g_free(services);
+                services = tmp_services;
+            }
+        }
+        monitor_printf(mon, "%s: service=[%s]\n", info->id, services);
+
+        for (cl = info->client; cl; cl = cl->next) {
+            QCryptodevBackendClient *client = cl->value;
+            monitor_printf(mon, "    queue %" PRIu32 ": type=%s\n",
+                           client->queue,
+                           QCryptodevBackendType_str(client->type));
+        }
+    }
+
+    qapi_free_QCryptodevInfoList(il);
+}
-- 
2.34.1