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 "exec.h" 25 #include "migration/migration.h" 26 #include "io/channel-command.h" 27 #include "trace.h" 28 29 30 void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) 31 { 32 QIOChannel *ioc; 33 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 34 35 trace_migration_exec_outgoing(command); 36 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 37 O_RDWR, 38 errp)); 39 if (!ioc) { 40 return; 41 } 42 43 qio_channel_set_name(ioc, "migration-exec-outgoing"); 44 migration_channel_connect(s, ioc, NULL); 45 object_unref(OBJECT(ioc)); 46 } 47 48 static gboolean exec_accept_incoming_migration(QIOChannel *ioc, 49 GIOCondition condition, 50 gpointer opaque) 51 { 52 migration_channel_process_incoming(migrate_get_current(), ioc); 53 object_unref(OBJECT(ioc)); 54 return FALSE; /* unregister */ 55 } 56 57 void exec_start_incoming_migration(const char *command, Error **errp) 58 { 59 QIOChannel *ioc; 60 const char *argv[] = { "/bin/sh", "-c", command, NULL }; 61 62 trace_migration_exec_incoming(command); 63 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, 64 O_RDWR, 65 errp)); 66 if (!ioc) { 67 return; 68 } 69 70 qio_channel_set_name(ioc, "migration-exec-incoming"); 71 qio_channel_add_watch(ioc, 72 G_IO_IN, 73 exec_accept_incoming_migration, 74 NULL, 75 NULL); 76 } 77