diff --git a/migration/fd.c b/migration/fd.c
index fe0d096abd..449adaa2de 100644
--- a/migration/fd.c
+++ b/migration/fd.c
@@ -15,42 +15,19 @@
  */
 
 #include "qemu/osdep.h"
-#include "qapi/error.h"
 #include "channel.h"
 #include "fd.h"
 #include "file.h"
 #include "migration.h"
 #include "monitor/monitor.h"
-#include "io/channel-file.h"
-#include "io/channel-socket.h"
 #include "io/channel-util.h"
-#include "options.h"
 #include "trace.h"
 
 
-static struct FdOutgoingArgs {
-    int fd;
-} outgoing_args;
-
-int fd_args_get_fd(void)
-{
-    return outgoing_args.fd;
-}
-
-void fd_cleanup_outgoing_migration(void)
-{
-    if (outgoing_args.fd > 0) {
-        close(outgoing_args.fd);
-        outgoing_args.fd = -1;
-    }
-}
-
 void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
 {
     QIOChannel *ioc;
     int fd = monitor_get_fd(monitor_cur(), fdname, errp);
-    int newfd;
-
     if (fd == -1) {
         return;
     }
@@ -62,18 +39,6 @@ void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **
         return;
     }
 
-    /*
-     * This is dup()ed just to avoid referencing an fd that might
-     * be already closed by the iochannel.
-     */
-    newfd = dup(fd);
-    if (newfd == -1) {
-        error_setg_errno(errp, errno, "Could not dup FD %d", fd);
-        object_unref(ioc);
-        return;
-    }
-    outgoing_args.fd = newfd;
-
     qio_channel_set_name(ioc, "migration-fd-outgoing");
     migration_channel_connect(s, ioc, NULL, NULL);
     object_unref(OBJECT(ioc));
@@ -104,20 +69,9 @@ void fd_start_incoming_migration(const char *fdname, Error **errp)
         return;
     }
 
-    if (migrate_multifd()) {
-        if (fd_is_socket(fd)) {
-            error_setg(errp,
-                       "Multifd migration to a socket FD is not supported");
-            object_unref(ioc);
-            return;
-        }
-
-        file_create_incoming_channels(ioc, errp);
-    } else {
-        qio_channel_set_name(ioc, "migration-fd-incoming");
-        qio_channel_add_watch_full(ioc, G_IO_IN,
-                                   fd_accept_incoming_migration,
-                                   NULL, NULL,
-                                   g_main_context_get_thread_default());
-    }
+    qio_channel_set_name(ioc, "migration-fd-incoming");
+    qio_channel_add_watch_full(ioc, G_IO_IN,
+                               fd_accept_incoming_migration,
+                               NULL, NULL,
+                               g_main_context_get_thread_default());
 }
diff --git a/migration/fd.h b/migration/fd.h
index 0c0a18d9e7..b901bc014e 100644
--- a/migration/fd.h
+++ b/migration/fd.h
@@ -20,6 +20,4 @@ void fd_start_incoming_migration(const char *fdname, Error **errp);
 
 void fd_start_outgoing_migration(MigrationState *s, const char *fdname,
                                  Error **errp);
-void fd_cleanup_outgoing_migration(void);
-int fd_args_get_fd(void);
 #endif
diff --git a/migration/file.c b/migration/file.c
index b6e8ba13f2..ab18ba505a 100644
--- a/migration/file.c
+++ b/migration/file.c
@@ -11,7 +11,6 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "channel.h"
-#include "fd.h"
 #include "file.h"
 #include "migration.h"
 #include "io/channel-file.h"
@@ -55,27 +54,15 @@ bool file_send_channel_create(gpointer opaque, Error **errp)
 {
     QIOChannelFile *ioc;
     int flags = O_WRONLY;
-    bool ret = false;
-    int fd = fd_args_get_fd();
-
-    if (fd && fd != -1) {
-        if (fd_is_socket(fd)) {
-            error_setg(errp,
-                       "Multifd migration to a socket FD is not supported");
-            goto out;
-        }
-
-        ioc = qio_channel_file_new_dupfd(fd, errp);
-    } else {
-        ioc = qio_channel_file_new_path(outgoing_args.fname, flags, 0, errp);
-    }
+    bool ret = true;
 
+    ioc = qio_channel_file_new_path(outgoing_args.fname, flags, 0, errp);
     if (!ioc) {
+        ret = false;
         goto out;
     }
 
     multifd_channel_connect(opaque, QIO_CHANNEL(ioc));
-    ret = true;
 
 out:
     /*
diff --git a/migration/migration.c b/migration/migration.c
index f60bd371e3..047b6b49cf 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -140,10 +140,6 @@ static bool transport_supports_multi_channels(MigrationAddress *addr)
     if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET) {
         SocketAddress *saddr = &addr->u.socket;
 
-        if (saddr->type == SOCKET_ADDRESS_TYPE_FD) {
-            return migrate_mapped_ram();
-        }
-
         return (saddr->type == SOCKET_ADDRESS_TYPE_INET ||
                 saddr->type == SOCKET_ADDRESS_TYPE_UNIX ||
                 saddr->type == SOCKET_ADDRESS_TYPE_VSOCK);
@@ -165,15 +161,6 @@ static bool transport_supports_seeking(MigrationAddress *addr)
         return true;
     }
 
-    /*
-     * At this point QEMU has not yet fetched the fd passed in by the
-     * user, so we cannot know for sure whether it refers to a plain
-     * file or a socket. Let it through anyway and check at fd.c.
-     */
-    if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET) {
-        return addr->u.socket.type == SOCKET_ADDRESS_TYPE_FD;
-    }
-
     return false;
 }
 
diff --git a/migration/multifd.c b/migration/multifd.c
index 0179422f6d..d2f0238f70 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -18,7 +18,6 @@
 #include "exec/ramblock.h"
 #include "qemu/error-report.h"
 #include "qapi/error.h"
-#include "fd.h"
 #include "file.h"
 #include "migration.h"
 #include "migration-stats.h"
@@ -794,7 +793,6 @@ static bool multifd_send_cleanup_channel(MultiFDSendParams *p, Error **errp)
 static void multifd_send_cleanup_state(void)
 {
     file_cleanup_outgoing_migration();
-    fd_cleanup_outgoing_migration();
     socket_cleanup_outgoing_migration();
     qemu_sem_destroy(&multifd_send_state->channels_created);
     qemu_sem_destroy(&multifd_send_state->channels_ready);
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index 71895abb7f..1d2cee87ea 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -2536,13 +2536,6 @@ static void *migrate_precopy_fd_file_start(QTestState *from, QTestState *to)
     return NULL;
 }
 
-static void *migrate_fd_file_mapped_ram_start(QTestState *from, QTestState *to)
-{
-    migrate_mapped_ram_start(from, to);
-
-    return migrate_precopy_fd_file_start(from, to);
-}
-
 static void test_migrate_precopy_fd_file(void)
 {
     MigrateCommon args = {
@@ -2553,36 +2546,6 @@ static void test_migrate_precopy_fd_file(void)
     };
     test_file_common(&args, true);
 }
-
-static void test_migrate_precopy_fd_file_mapped_ram(void)
-{
-    MigrateCommon args = {
-        .listen_uri = "defer",
-        .connect_uri = "fd:fd-mig",
-        .start_hook = migrate_fd_file_mapped_ram_start,
-        .finish_hook = test_migrate_fd_finish_hook
-    };
-    test_file_common(&args, true);
-}
-
-static void *migrate_multifd_fd_mapped_ram_start(QTestState *from,
-                                                QTestState *to)
-{
-    migrate_multifd_mapped_ram_start(from, to);
-    return migrate_precopy_fd_file_start(from, to);
-}
-
-static void test_multifd_fd_mapped_ram(void)
-{
-    MigrateCommon args = {
-        .connect_uri = "fd:fd-mig",
-        .listen_uri = "defer",
-        .start_hook = migrate_multifd_fd_mapped_ram_start,
-        .finish_hook = test_migrate_fd_finish_hook
-    };
-
-    test_file_common(&args, true);
-}
 #endif /* _WIN32 */
 
 static void do_test_validate_uuid(MigrateStart *args, bool should_fail)
@@ -3687,10 +3650,6 @@ int main(int argc, char **argv)
                        test_multifd_file_mapped_ram);
     migration_test_add("/migration/multifd/file/mapped-ram/live",
                        test_multifd_file_mapped_ram_live);
-#ifndef _WIN32
-    migration_test_add("/migration/multifd/fd/mapped-ram",
-                       test_multifd_fd_mapped_ram);
-#endif
 
 #ifdef CONFIG_GNUTLS
     migration_test_add("/migration/precopy/unix/tls/psk",
@@ -3753,8 +3712,6 @@ int main(int argc, char **argv)
                        test_migrate_precopy_fd_socket);
     migration_test_add("/migration/precopy/fd/file",
                        test_migrate_precopy_fd_file);
-    migration_test_add("/migration/precopy/fd/file/mapped-ram",
-                       test_migrate_precopy_fd_file_mapped_ram);
 #endif
     migration_test_add("/migration/validate_uuid", test_validate_uuid);
     migration_test_add("/migration/validate_uuid_error",