hw/arm/virt-acpi-build: don't save VirtGuestInfo on AcpiBuildState
[qemu.git] / migration / exec.c
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 "migration/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_WRONLY,
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);
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(migrate_get_current(), ioc);
51 object_unref(OBJECT(ioc));
52 return FALSE; /* unregister */
53 }
54
55 void exec_start_incoming_migration(const char *command, Error **errp)
56 {
57 QIOChannel *ioc;
58 const char *argv[] = { "/bin/sh", "-c", command, NULL };
59
60 trace_migration_exec_incoming(command);
61 ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
62 O_RDONLY,
63 errp));
64 if (!ioc) {
65 return;
66 }
67
68 qio_channel_set_name(ioc, "migration-exec-incoming");
69 qio_channel_add_watch(ioc,
70 G_IO_IN,
71 exec_accept_incoming_migration,
72 NULL,
73 NULL);
74 }