1 /* 2 * QEMU live migration 3 * 4 * Copyright IBM, Corp. 2008 5 * Copyright Dell MessageOne 2008 6 * Copyright Red Hat, Inc. 2015-2016 7 * 8 * Authors: 9 * Anthony Liguori <aliguori@us.ibm.com> 10 * Charles Duffy <charles_duffy@messageone.com> 11 * Daniel P. Berrange <berrange@redhat.com> 12 * 13 * This work is licensed under the terms of the GNU GPL, version 2. See 14 * the COPYING file in the top-level directory. 15 * 16 * Contributions after 2012-01-13 are licensed under the terms of the 17 * GNU GPL, version 2 or (at your option) any later version. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "channel.h" 22 #include "exec.h" 23 #include "migration.h" 24 #include "io/channel-command.h" 25 #include "trace.h" 26 27 28 void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) 29 { 30 QIOChannel *ioc; 31 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 32 33 trace_migration_exec_outgoing(command); 34 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 35 O_RDWR, 36 errp)); 37 if (!ioc) { 38 return; 39 } 40 41 qio_channel_set_name(ioc, "migration-exec-outgoing"); 42 migration_channel_connect(s, ioc, NULL, NULL); 43 object_unref(OBJECT(ioc)); 44 } 45 46 static gboolean exec_accept_incoming_migration(QIOChannel *ioc, 47 GIOCondition condition, 48 gpointer opaque) 49 { 50 migration_channel_process_incoming(ioc); 51 object_unref(OBJECT(ioc)); 52 if (!migrate_use_multifd()) { 53 migration_incoming_process(); 54 } 55 return G_SOURCE_REMOVE; 56 } 57 58 void exec_start_incoming_migration(const char *command, Error **errp) 59 { 60 QIOChannel *ioc; 61 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 62 63 trace_migration_exec_incoming(command); 64 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 65 O_RDWR, 66 errp)); 67 if (!ioc) { 68 return; 69 } 70 71 qio_channel_set_name(ioc, "migration-exec-incoming"); 72 qio_channel_add_watch_full(ioc, G_IO_IN, 73 exec_accept_incoming_migration, 74 NULL, NULL, 75 g_main_context_get_thread_default()); 76 } 77