Peter Xu 1d48111601 migration: Add save_postcopy_prepare() savevm handler ... Add a savevm handler for a module to opt-in sending extra sections right before postcopy starts, and before VM is stopped. RAM will start to use this new savevm handler in the next patch to do flush and sync for multifd pages. Note that we choose to do it before VM stopped because the current only potential user is not sensitive to VM status, so doing it before VM is stopped is preferred to enlarge any postcopy downtime. It is still a bit unfortunate that we need to introduce such a new savevm handler just for the only use case, however it's so far the cleanest. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Prasad Pandit <pjp@fedoraproject.org> Reviewed-by: Fabiano Rosas <farosas@suse.de> Message-ID: <20250411114534.3370816-4-ppandit@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de>		2025-05-02 11:09:36 -04:00
..
block-active.c	migration/block-active: Remove global active flag	2025-02-06 14:26:51 +01:00
block-dirty-bitmap.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
channel-block.c	qom: Have class_init() take a const data argument	2025-04-25 17:00:41 +02:00
channel-block.h	migration: introduce a QIOChannel impl for BlockDriverState VMState	2022-06-22 19:33:43 +01:00
channel.c	migration: Fix hang after error in destination setup phase	2025-02-14 15:19:05 -03:00
channel.h	migration: check magic value for deciding the mapping of channels	2023-02-06 19:22:57 +01:00
colo-failover.c	migration/colo: Improve an x-colo-lost-heartbeat error message	2023-02-23 14:10:17 +01:00
colo-stubs.c	migration/colo: make colo_incoming_co() return void	2024-05-22 17:34:31 -03:00
colo.c	migration: Add MIG_CMD_SWITCHOVER_START and its load handler	2025-03-06 06:47:33 +01:00
cpr-transfer.c	migration: cpr-transfer save and load	2025-01-29 11:43:05 -03:00
cpr.c	migration: cpr_is_incoming	2025-03-14 09:29:19 -03:00
cpu-throttle.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
dirtyrate.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
dirtyrate.h	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
exec.c	migration: simplify exec migration functions	2024-03-04 07:12:40 +01:00
exec.h	migration: convert exec backend to accept MigrateAddress.	2023-11-02 11:35:04 +01:00
fd.c	migration: Allow pipes to keep working for fd migrations	2024-11-25 16:21:55 -05:00
fd.h	migration: Revert mapped-ram multifd support to fd: URI	2024-03-22 12:12:08 -04:00
file.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
file.h	migration/multifd: Pass in MultiFDPages_t to file_write_ramblock_iov	2024-09-03 16:24:35 -03:00
global_state.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
meson.build	migration/multifd: Device state transfer support - send side	2025-03-06 06:47:33 +01:00
migration-hmp-cmds.c	migration: Add MIG_CMD_SWITCHOVER_START and its load handler	2025-03-06 06:47:33 +01:00
migration-stats.c	migration: migration_rate_limit_reset() don't need the QEMUFile	2023-10-31 08:44:33 +01:00
migration-stats.h	migration: Remove transferred atomic counter	2023-10-31 08:44:33 +01:00
migration.c	migration: Add save_postcopy_prepare() savevm handler	2025-05-02 11:09:36 -04:00
migration.h	migration: Add thread pool of optional load threads	2025-03-06 06:47:33 +01:00
multifd-device-state.c	migration: Add save_live_complete_precopy_thread handler	2025-03-06 06:47:33 +01:00
multifd-nocomp.c	Miscellaneous patches for 2025-04-24	2025-04-24 13:44:57 -04:00
multifd-qatzip.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
multifd-qpl.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
multifd-uadk.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
multifd-zero-page.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
multifd-zlib.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
multifd-zstd.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
multifd.c	migration/multifd: move macros to multifd header	2025-05-02 11:09:36 -04:00
multifd.h	migration/multifd: move macros to multifd header	2025-05-02 11:09:36 -04:00
options.c	migration: Fix latent bug in migrate_params_test_apply()	2025-05-02 11:09:36 -04:00
options.h	migration: check RDMA and capabilities are compatible on both sides	2025-05-02 11:09:36 -04:00
page_cache.c	migration: Fix cache_init()'s "Failed to allocate" error messages	2021-02-08 11:19:51 +00:00
page_cache.h	migration: Clean up signed vs. unsigned XBZRLE cache-size	2021-02-08 11:19:51 +00:00
postcopy-ram.c	include/system: Move exec/ramblock.h to system/ramblock.h	2025-04-23 14:08:26 -07:00
postcopy-ram.h	migration/postcopy: Add postcopy-recover-setup phase	2024-06-21 09:47:59 -03:00
qemu-file.c	cleanup: Drop pointless return at end of function	2025-04-24 09:33:42 +02:00
qemu-file.h	migration/qemu-file: Define g_autoptr() cleanup function for QEMUFile	2025-03-06 06:47:34 +01:00
ram.c	migration: Unfold control_save_page()	2025-05-02 11:09:36 -04:00
ram.h	migration/ram: Move RAM_SAVE_FLAG* into ram.h	2025-01-09 17:38:15 -03:00
rdma.c	migration: Unfold control_save_page()	2025-05-02 11:09:36 -04:00
rdma.h	migration: Unfold control_save_page()	2025-05-02 11:09:36 -04:00
savevm.c	migration: Add save_postcopy_prepare() savevm handler	2025-05-02 11:09:36 -04:00
savevm.h	migration: Add save_postcopy_prepare() savevm handler	2025-05-02 11:09:36 -04:00
socket.c	migration: Remove unused socket_send_channel_create_sync	2024-10-08 15:28:55 -04:00
socket.h	migration: Remove unused socket_send_channel_create_sync	2024-10-08 15:28:55 -04:00
target.c	vfio: Introduce a new header file for external migration services	2025-04-25 09:01:37 +02:00
threadinfo.c	migration/multifd: Protect accesses to migration_threads	2023-07-26 10:55:56 +02:00
threadinfo.h	migration/multifd: Protect accesses to migration_threads	2023-07-26 10:55:56 +02:00
tls.c	migration/multifd: Terminate the TLS connection	2025-02-14 15:19:04 -03:00
tls.h	migration/multifd: Terminate the TLS connection	2025-02-14 15:19:04 -03:00
trace-events	migration: Add MIG_CMD_SWITCHOVER_START and its load handler	2025-03-06 06:47:33 +01:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
vmstate-types.c	migration: cpr-transfer mode	2025-01-29 11:56:24 -03:00
vmstate.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
xbzrle.c	migration/xbzrle: Use i386 host/cpuinfo.h	2023-05-23 16:51:18 -07:00
xbzrle.h	migration/xbzrle: Use i386 host/cpuinfo.h	2023-05-23 16:51:18 -07:00
yank_functions.c	migration/yank: Use channel features	2024-01-29 11:02:12 +08:00
yank_functions.h	migration: Move the yank unregister of channel_close out	2021-07-26 12:45:03 +01:00