From 5dcb0198109429c9f54adce939ad825eabe857b4 Mon Sep 17 00:00:00 2001
From: zhenwei pi <pizhenwei@bytedance.com>
Date: Wed, 1 Mar 2023 18:58:40 +0800
Subject: cryptodev: Introduce 'query-cryptodev' QMP command
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Now we have a QMP command to query crypto devices:
virsh qemu-monitor-command vm '{"execute": "query-cryptodev"}' | jq
{
  "return": [
    {
      "service": [
        "akcipher",
        "mac",
        "hash",
        "cipher"
      ],
      "id": "cryptodev1",
      "client": [
        {
          "queue": 0,
          "type": "builtin"
        }
      ]
    },
    {
      "service": [
        "akcipher"
      ],
      "id": "cryptodev0",
      "client": [
        {
          "queue": 0,
          "type": "lkcf"
        }
      ]
    }
  ],
  "id": "libvirt-417"
}

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20230301105847.253084-6-pizhenwei@bytedance.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 backends/cryptodev.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'backends/cryptodev.c')

diff --git a/backends/cryptodev.c b/backends/cryptodev.c
index c2a053db0e..3a45d19823 100644
--- a/backends/cryptodev.c
+++ b/backends/cryptodev.c
@@ -24,6 +24,7 @@
 #include "qemu/osdep.h"
 #include "sysemu/cryptodev.h"
 #include "qapi/error.h"
+#include "qapi/qapi-commands-cryptodev.h"
 #include "qapi/visitor.h"
 #include "qemu/config-file.h"
 #include "qemu/error-report.h"
@@ -33,6 +34,50 @@
 
 static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients;
 
+static int qmp_query_cryptodev_foreach(Object *obj, void *data)
+{
+    CryptoDevBackend *backend;
+    QCryptodevInfoList **infolist = data;
+    uint32_t services, i;
+
+    if (!object_dynamic_cast(obj, TYPE_CRYPTODEV_BACKEND)) {
+        return 0;
+    }
+
+    QCryptodevInfo *info = g_new0(QCryptodevInfo, 1);
+    info->id = g_strdup(object_get_canonical_path_component(obj));
+
+    backend = CRYPTODEV_BACKEND(obj);
+    services = backend->conf.crypto_services;
+    for (i = 0; i < QCRYPTODEV_BACKEND_SERVICE__MAX; i++) {
+        if (services & (1 << i)) {
+            QAPI_LIST_PREPEND(info->service, i);
+        }
+    }
+
+    for (i = 0; i < backend->conf.peers.queues; i++) {
+        CryptoDevBackendClient *cc = backend->conf.peers.ccs[i];
+        QCryptodevBackendClient *client = g_new0(QCryptodevBackendClient, 1);
+
+        client->queue = cc->queue_index;
+        client->type = cc->type;
+        QAPI_LIST_PREPEND(info->client, client);
+    }
+
+    QAPI_LIST_PREPEND(*infolist, info);
+
+    return 0;
+}
+
+QCryptodevInfoList *qmp_query_cryptodev(Error **errp)
+{
+    QCryptodevInfoList *list = NULL;
+    Object *objs = container_get(object_get_root(), "/objects");
+
+    object_child_foreach(objs, qmp_query_cryptodev_foreach, &list);
+
+    return list;
+}
 
 CryptoDevBackendClient *cryptodev_backend_new_client(void)
 {
-- 
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