cryptodev: add vhost support

Impliment the vhost-crypto's funtions, such as startup,
stop and notification etc. Introduce an enum
QCryptoCryptoDevBackendOptionsType in order to
identify the cryptodev vhost backend is vhost-user
or vhost-kernel-module (If exist).

At this point, the cryptdoev-vhost-user works.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Jay Zhou <jianjay.zhou@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/backends/cryptodev-vhost-user.c b/backends/cryptodev-vhost-user.c
index 93c3f10a8f..151a0e6ca7 100644
--- a/backends/cryptodev-vhost-user.c
+++ b/backends/cryptodev-vhost-user.c
@@ -29,6 +29,7 @@
 #include "standard-headers/linux/virtio_crypto.h"
 #include "sysemu/cryptodev-vhost.h"
 #include "chardev/char-fe.h"
+#include "sysemu/cryptodev-vhost-user.h"
 
 
 /**
@@ -58,6 +59,20 @@ cryptodev_vhost_user_running(
     return crypto ? 1 : 0;
 }
 
+CryptoDevBackendVhost *
+cryptodev_vhost_user_get_vhost(
+                         CryptoDevBackendClient *cc,
+                         CryptoDevBackend *b,
+                         uint16_t queue)
+{
+    CryptoDevBackendVhostUser *s =
+                      CRYPTODEV_BACKEND_VHOST_USER(b);
+    assert(cc->type == CRYPTODEV_BACKEND_TYPE_VHOST_USER);
+    assert(queue < MAX_CRYPTO_QUEUE_NUM);
+
+    return s->vhost_crypto[queue];
+}
+
 static void cryptodev_vhost_user_stop(int queues,
                           CryptoDevBackendVhostUser *s)
 {
@@ -188,6 +203,7 @@ static void cryptodev_vhost_user_init(
         cc->info_str = g_strdup_printf("cryptodev-vhost-user%zu to %s ",
                                        i, chr->label);
         cc->queue_index = i;
+        cc->type = CRYPTODEV_BACKEND_TYPE_VHOST_USER;
 
         backend->conf.peers.ccs[i] = cc;