xref: /openbmc/qemu/migration/options.c (revision 38ad1110e368bf91453c0abbd657224d57b65d47)
11f0776f1SJuan Quintela /*
21f0776f1SJuan Quintela  * QEMU migration capabilities
31f0776f1SJuan Quintela  *
41f0776f1SJuan Quintela  * Copyright (c) 2012-2023 Red Hat Inc
51f0776f1SJuan Quintela  *
61f0776f1SJuan Quintela  * Authors:
71f0776f1SJuan Quintela  *   Orit Wasserman <owasserm@redhat.com>
81f0776f1SJuan Quintela  *   Juan Quintela <quintela@redhat.com>
91f0776f1SJuan Quintela  *
101f0776f1SJuan Quintela  * This work is licensed under the terms of the GNU GPL, version 2 or later.
111f0776f1SJuan Quintela  * See the COPYING file in the top-level directory.
121f0776f1SJuan Quintela  */
131f0776f1SJuan Quintela 
141f0776f1SJuan Quintela #include "qemu/osdep.h"
151f0776f1SJuan Quintela #include "migration.h"
161f0776f1SJuan Quintela #include "options.h"
171f0776f1SJuan Quintela 
181f0776f1SJuan Quintela bool migrate_auto_converge(void)
191f0776f1SJuan Quintela {
201f0776f1SJuan Quintela     MigrationState *s;
211f0776f1SJuan Quintela 
221f0776f1SJuan Quintela     s = migrate_get_current();
231f0776f1SJuan Quintela 
241f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_AUTO_CONVERGE];
251f0776f1SJuan Quintela }
261f0776f1SJuan Quintela 
271f0776f1SJuan Quintela bool migrate_background_snapshot(void)
281f0776f1SJuan Quintela {
291f0776f1SJuan Quintela     MigrationState *s;
301f0776f1SJuan Quintela 
311f0776f1SJuan Quintela     s = migrate_get_current();
321f0776f1SJuan Quintela 
331f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT];
341f0776f1SJuan Quintela }
351f0776f1SJuan Quintela 
369d4b1e5fSJuan Quintela bool migrate_block(void)
379d4b1e5fSJuan Quintela {
389d4b1e5fSJuan Quintela     MigrationState *s;
399d4b1e5fSJuan Quintela 
409d4b1e5fSJuan Quintela     s = migrate_get_current();
419d4b1e5fSJuan Quintela 
429d4b1e5fSJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_BLOCK];
439d4b1e5fSJuan Quintela }
449d4b1e5fSJuan Quintela 
455e804644SJuan Quintela bool migrate_colo(void)
465e804644SJuan Quintela {
475e804644SJuan Quintela     MigrationState *s = migrate_get_current();
485e804644SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_X_COLO];
495e804644SJuan Quintela }
505e804644SJuan Quintela 
51a7a94d14SJuan Quintela bool migrate_compress(void)
52a7a94d14SJuan Quintela {
53a7a94d14SJuan Quintela     MigrationState *s;
54a7a94d14SJuan Quintela 
55a7a94d14SJuan Quintela     s = migrate_get_current();
56a7a94d14SJuan Quintela 
57a7a94d14SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_COMPRESS];
58a7a94d14SJuan Quintela }
59a7a94d14SJuan Quintela 
601f0776f1SJuan Quintela bool migrate_dirty_bitmaps(void)
611f0776f1SJuan Quintela {
621f0776f1SJuan Quintela     MigrationState *s;
631f0776f1SJuan Quintela 
641f0776f1SJuan Quintela     s = migrate_get_current();
651f0776f1SJuan Quintela 
661f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_DIRTY_BITMAPS];
671f0776f1SJuan Quintela }
681f0776f1SJuan Quintela 
69b890902cSJuan Quintela bool migrate_events(void)
70b890902cSJuan Quintela {
71b890902cSJuan Quintela     MigrationState *s;
72b890902cSJuan Quintela 
73b890902cSJuan Quintela     s = migrate_get_current();
74b890902cSJuan Quintela 
75b890902cSJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_EVENTS];
76b890902cSJuan Quintela }
77b890902cSJuan Quintela 
781f0776f1SJuan Quintela bool migrate_ignore_shared(void)
791f0776f1SJuan Quintela {
801f0776f1SJuan Quintela     MigrationState *s;
811f0776f1SJuan Quintela 
821f0776f1SJuan Quintela     s = migrate_get_current();
831f0776f1SJuan Quintela 
841f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_X_IGNORE_SHARED];
851f0776f1SJuan Quintela }
861f0776f1SJuan Quintela 
871f0776f1SJuan Quintela bool migrate_late_block_activate(void)
881f0776f1SJuan Quintela {
891f0776f1SJuan Quintela     MigrationState *s;
901f0776f1SJuan Quintela 
911f0776f1SJuan Quintela     s = migrate_get_current();
921f0776f1SJuan Quintela 
931f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_LATE_BLOCK_ACTIVATE];
941f0776f1SJuan Quintela }
951f0776f1SJuan Quintela 
9651b07548SJuan Quintela bool migrate_multifd(void)
9751b07548SJuan Quintela {
9851b07548SJuan Quintela     MigrationState *s;
9951b07548SJuan Quintela 
10051b07548SJuan Quintela     s = migrate_get_current();
10151b07548SJuan Quintela 
10251b07548SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_MULTIFD];
10351b07548SJuan Quintela }
10451b07548SJuan Quintela 
1051f0776f1SJuan Quintela bool migrate_pause_before_switchover(void)
1061f0776f1SJuan Quintela {
1071f0776f1SJuan Quintela     MigrationState *s;
1081f0776f1SJuan Quintela 
1091f0776f1SJuan Quintela     s = migrate_get_current();
1101f0776f1SJuan Quintela 
1111f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_PAUSE_BEFORE_SWITCHOVER];
1121f0776f1SJuan Quintela }
1131f0776f1SJuan Quintela 
1141f0776f1SJuan Quintela bool migrate_postcopy_blocktime(void)
1151f0776f1SJuan Quintela {
1161f0776f1SJuan Quintela     MigrationState *s;
1171f0776f1SJuan Quintela 
1181f0776f1SJuan Quintela     s = migrate_get_current();
1191f0776f1SJuan Quintela 
1201f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_BLOCKTIME];
1211f0776f1SJuan Quintela }
1221f0776f1SJuan Quintela 
1231f0776f1SJuan Quintela bool migrate_postcopy_preempt(void)
1241f0776f1SJuan Quintela {
1251f0776f1SJuan Quintela     MigrationState *s;
1261f0776f1SJuan Quintela 
1271f0776f1SJuan Quintela     s = migrate_get_current();
1281f0776f1SJuan Quintela 
1291f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_PREEMPT];
1301f0776f1SJuan Quintela }
1311f0776f1SJuan Quintela 
1321f0776f1SJuan Quintela bool migrate_postcopy_ram(void)
1331f0776f1SJuan Quintela {
1341f0776f1SJuan Quintela     MigrationState *s;
1351f0776f1SJuan Quintela 
1361f0776f1SJuan Quintela     s = migrate_get_current();
1371f0776f1SJuan Quintela 
1381f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_RAM];
1391f0776f1SJuan Quintela }
1401f0776f1SJuan Quintela 
1411f0776f1SJuan Quintela bool migrate_release_ram(void)
1421f0776f1SJuan Quintela {
1431f0776f1SJuan Quintela     MigrationState *s;
1441f0776f1SJuan Quintela 
1451f0776f1SJuan Quintela     s = migrate_get_current();
1461f0776f1SJuan Quintela 
1471f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_RELEASE_RAM];
1481f0776f1SJuan Quintela }
1491f0776f1SJuan Quintela 
150*38ad1110SJuan Quintela bool migrate_return_path(void)
151*38ad1110SJuan Quintela {
152*38ad1110SJuan Quintela     MigrationState *s;
153*38ad1110SJuan Quintela 
154*38ad1110SJuan Quintela     s = migrate_get_current();
155*38ad1110SJuan Quintela 
156*38ad1110SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_RETURN_PATH];
157*38ad1110SJuan Quintela }
158*38ad1110SJuan Quintela 
1591f0776f1SJuan Quintela bool migrate_validate_uuid(void)
1601f0776f1SJuan Quintela {
1611f0776f1SJuan Quintela     MigrationState *s;
1621f0776f1SJuan Quintela 
1631f0776f1SJuan Quintela     s = migrate_get_current();
1641f0776f1SJuan Quintela 
1651f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_VALIDATE_UUID];
1661f0776f1SJuan Quintela }
1671f0776f1SJuan Quintela 
16887dca0c9SJuan Quintela bool migrate_xbzrle(void)
16987dca0c9SJuan Quintela {
17087dca0c9SJuan Quintela     MigrationState *s;
17187dca0c9SJuan Quintela 
17287dca0c9SJuan Quintela     s = migrate_get_current();
17387dca0c9SJuan Quintela 
17487dca0c9SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_XBZRLE];
17587dca0c9SJuan Quintela }
17687dca0c9SJuan Quintela 
1771f0776f1SJuan Quintela bool migrate_zero_blocks(void)
1781f0776f1SJuan Quintela {
1791f0776f1SJuan Quintela     MigrationState *s;
1801f0776f1SJuan Quintela 
1811f0776f1SJuan Quintela     s = migrate_get_current();
1821f0776f1SJuan Quintela 
1831f0776f1SJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_ZERO_BLOCKS];
1841f0776f1SJuan Quintela }
185b4bc342cSJuan Quintela 
186b4bc342cSJuan Quintela bool migrate_zero_copy_send(void)
187b4bc342cSJuan Quintela {
188b4bc342cSJuan Quintela     MigrationState *s;
189b4bc342cSJuan Quintela 
190b4bc342cSJuan Quintela     s = migrate_get_current();
191b4bc342cSJuan Quintela 
192b4bc342cSJuan Quintela     return s->capabilities[MIGRATION_CAPABILITY_ZERO_COPY_SEND];
193b4bc342cSJuan Quintela }
194