From: Jaehoon Kim Date: Wed, 11 Jun 2025 20:56:10 +0000 (-0500) Subject: migration: Support fd-based socket address in cpr_transfer_input X-Git-Tag: v10.1.0-rc0~43^2~7 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f87c87eca4bc62258251eade7016f8a084b0988;p=thirdparty%2Fqemu.git migration: Support fd-based socket address in cpr_transfer_input Extend cpr_transfer_input to handle SOCKET_ADDRESS_TYPE_FD alongside SOCKET_ADDRESS_TYPE_UNIX. This change supports the use of pre-listened socket file descriptors for cpr migration channels. This change is particularly useful in qtest environments, where the socket may be created externally and passed via fd. Reviewed-by: Jason J. Herne Reviewed-by: Steve Sistare Signed-off-by: Jaehoon Kim Link: https://lore.kernel.org/r/20250611205610.147008-3-jhkim@linux.ibm.com Signed-off-by: Peter Xu --- diff --git a/migration/cpr-transfer.c b/migration/cpr-transfer.c index e1f140359cf..00371d17c3a 100644 --- a/migration/cpr-transfer.c +++ b/migration/cpr-transfer.c @@ -46,7 +46,8 @@ QEMUFile *cpr_transfer_input(MigrationChannel *channel, Error **errp) MigrationAddress *addr = channel->addr; if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET && - addr->u.socket.type == SOCKET_ADDRESS_TYPE_UNIX) { + (addr->u.socket.type == SOCKET_ADDRESS_TYPE_UNIX || + addr->u.socket.type == SOCKET_ADDRESS_TYPE_FD)) { g_autoptr(QIOChannelSocket) sioc = NULL; SocketAddress *saddr = &addr->u.socket; @@ -60,7 +61,9 @@ QEMUFile *cpr_transfer_input(MigrationChannel *channel, Error **errp) sioc = qio_net_listener_wait_client(listener); ioc = QIO_CHANNEL(sioc); - trace_cpr_transfer_input(addr->u.socket.u.q_unix.path); + trace_cpr_transfer_input( + addr->u.socket.type == SOCKET_ADDRESS_TYPE_UNIX ? + addr->u.socket.u.q_unix.path : addr->u.socket.u.fd.str); qio_channel_set_name(ioc, "cpr-in"); return qemu_file_new_input(ioc);