hw/riscv: opentitan: Expose the resetvec as a SoC property
[qemu/ar7.git] / migration / channel.c
blob1b0815039f9de096695219c0a2bf9bcf702824c3
1 /*
2 * QEMU live migration channel operations
4 * Copyright Red Hat, Inc. 2016
6 * Authors:
7 * Daniel P. Berrange <berrange@redhat.com>
9 * Contributions after 2012-01-13 are licensed under the terms of the
10 * GNU GPL, version 2 or (at your option) any later version.
13 #include "qemu/osdep.h"
14 #include "channel.h"
15 #include "tls.h"
16 #include "migration.h"
17 #include "qemu-file.h"
18 #include "trace.h"
19 #include "qapi/error.h"
20 #include "io/channel-tls.h"
21 #include "io/channel-socket.h"
22 #include "qemu/yank.h"
23 #include "yank_functions.h"
25 /**
26 * @migration_channel_process_incoming - Create new incoming migration channel
28 * Notice that TLS is special. For it we listen in a listener socket,
29 * and then create a new client socket from the TLS library.
31 * @ioc: Channel to which we are connecting
33 void migration_channel_process_incoming(QIOChannel *ioc)
35 MigrationState *s = migrate_get_current();
36 Error *local_err = NULL;
38 trace_migration_set_incoming_channel(
39 ioc, object_get_typename(OBJECT(ioc)));
41 if (migrate_channel_requires_tls_upgrade(ioc)) {
42 migration_tls_channel_process_incoming(s, ioc, &local_err);
43 } else {
44 migration_ioc_register_yank(ioc);
45 migration_ioc_process_incoming(ioc, &local_err);
48 if (local_err) {
49 error_report_err(local_err);
54 /**
55 * @migration_channel_connect - Create new outgoing migration channel
57 * @s: Current migration state
58 * @ioc: Channel to which we are connecting
59 * @hostname: Where we want to connect
60 * @error: Error indicating failure to connect, free'd here
62 void migration_channel_connect(MigrationState *s,
63 QIOChannel *ioc,
64 const char *hostname,
65 Error *error)
67 trace_migration_set_outgoing_channel(
68 ioc, object_get_typename(OBJECT(ioc)), hostname, error);
70 if (!error) {
71 if (migrate_channel_requires_tls_upgrade(ioc)) {
72 migration_tls_channel_connect(s, ioc, hostname, &error);
74 if (!error) {
75 /* tls_channel_connect will call back to this
76 * function after the TLS handshake,
77 * so we mustn't call migrate_fd_connect until then
80 return;
82 } else {
83 QEMUFile *f = qemu_file_new_output(ioc);
85 migration_ioc_register_yank(ioc);
87 qemu_mutex_lock(&s->qemu_file_lock);
88 s->to_dst_file = f;
89 qemu_mutex_unlock(&s->qemu_file_lock);
92 migrate_fd_connect(s, error);
93 error_free(error);