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-rw-r--r--chardev/char-socket.c15
-rw-r--r--chardev/char.c3
2 files changed, 16 insertions, 2 deletions
diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index a916ef4012..0c8d6d430a 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -1008,13 +1008,14 @@ static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
     const char *path = qemu_opt_get(opts, "path");
     const char *host = qemu_opt_get(opts, "host");
     const char *port = qemu_opt_get(opts, "port");
+    const char *fd = qemu_opt_get(opts, "fd");
     const char *tls_creds = qemu_opt_get(opts, "tls-creds");
     SocketAddressLegacy *addr;
     ChardevSocket *sock;
 
-    if ((!!path + !!host) != 1) {
+    if ((!!path + !!fd + !!host) != 1) {
         error_setg(errp,
-                   "Exactly one of 'path' or 'host' required");
+                   "Exactly one of 'path', 'fd' or 'host' required");
         return;
     }
 
@@ -1029,6 +1030,12 @@ static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
             error_setg(errp, "chardev: socket: no port given");
             return;
         }
+    } else if (fd) {
+        /* We don't know what host to validate against when in client mode */
+        if (tls_creds && !is_listen) {
+            error_setg(errp, "TLS can not be used with pre-opened client FD");
+            return;
+        }
     } else {
         g_assert_not_reached();
     }
@@ -1069,6 +1076,10 @@ static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
             .has_ipv6 = qemu_opt_get(opts, "ipv6"),
             .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
         };
+    } else if (fd) {
+        addr->type = SOCKET_ADDRESS_LEGACY_KIND_FD;
+        addr->u.fd.data = g_new(String, 1);
+        addr->u.fd.data->str = g_strdup(fd);
     } else {
         g_assert_not_reached();
     }
diff --git a/chardev/char.c b/chardev/char.c
index 5d7b079ef0..f7e0d37f24 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -808,6 +808,9 @@ QemuOptsList qemu_chardev_opts = {
             .name = "port",
             .type = QEMU_OPT_STRING,
         },{
+            .name = "fd",
+            .type = QEMU_OPT_STRING,
+        },{
             .name = "localaddr",
             .type = QEMU_OPT_STRING,
         },{