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 "qapi/error.h" 22 #include "qemu-common.h" 23 #include "channel.h" 24 #include "migration/migration.h" 25 #include "io/channel-command.h" 26 #include "trace.h" 27 28 29 void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) 30 { 31 QIOChannel *ioc; 32 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 33 34 trace_migration_exec_outgoing(command); 35 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 36 O_RDWR, 37 errp)); 38 if (!ioc) { 39 return; 40 } 41 42 qio_channel_set_name(ioc, "migration-exec-outgoing"); 43 migration_channel_connect(s, ioc, NULL); 44 object_unref(OBJECT(ioc)); 45 } 46 47 static gboolean exec_accept_incoming_migration(QIOChannel *ioc, 48 GIOCondition condition, 49 gpointer opaque) 50 { 51 migration_channel_process_incoming(migrate_get_current(), ioc); 52 object_unref(OBJECT(ioc)); 53 return FALSE; /* unregister */ 54 } 55 56 void exec_start_incoming_migration(const char *command, Error **errp) 57 { 58 QIOChannel *ioc; 59 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 60 61 trace_migration_exec_incoming(command); 62 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 63 O_RDWR, 64 errp)); 65 if (!ioc) { 66 return; 67 } 68 69 qio_channel_set_name(ioc, "migration-exec-incoming"); 70 qio_channel_add_watch(ioc, 71 G_IO_IN, 72 exec_accept_incoming_migration, 73 NULL, 74 NULL); 75 } 76