Steve Sistare e7d79011a4 migration: cpr-state ... CPR must save state that is needed after QEMU is restarted, when devices are realized. Thus the extra state cannot be saved in the migration channel, as objects must already exist before that channel can be loaded. Instead, define auxilliary state structures and vmstate descriptions, not associated with any registered object, and serialize the aux state to a cpr-specific channel in cpr_state_save. Deserialize in cpr_state_load after QEMU restarts, before devices are realized. Provide accessors for clients to register file descriptors for saving. The mechanism for passing the fd's to the new process will be specific to each migration mode, and added in subsequent patches. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/1736967650-129648-8-git-send-email-steven.sistare@oracle.com Signed-off-by: Fabiano Rosas <farosas@suse.de>		2025-01-29 11:43:04 -03:00
..
block-active.c	migration/block: Rewrite disk activation	2025-01-09 17:38:57 -03:00
block-dirty-bitmap.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
channel-block.c	io: follow coroutine AioContext in qio_channel_yield()	2023-09-07 20:32:11 -05:00
channel-block.h	migration: introduce a QIOChannel impl for BlockDriverState VMState	2022-06-22 19:33:43 +01:00
channel.c	migration: Fix migration_channel_read_peek() error path	2024-01-04 09:52:42 +08:00
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/block: Rewrite disk activation	2025-01-09 17:38:57 -03:00
cpr.c	migration: cpr-state	2025-01-29 11:43:04 -03:00
cpu-throttle.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
dirtyrate.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
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	migration/multifd: Pass in MultiFDPages_t to file_write_ramblock_iov	2024-09-03 16:24:35 -03:00
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: cpr-state	2025-01-29 11:43:04 -03:00
migration-hmp-cmds.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +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: cpr-state	2025-01-29 11:43:04 -03:00
migration.h	migration/block: Rewrite disk activation	2025-01-09 17:38:57 -03:00
multifd-nocomp.c	multifd: bugfix for migration using compression methods	2025-01-09 17:40:15 -03:00
multifd-qatzip.c	multifd: bugfix for incorrect migration data with qatzip compression	2025-01-09 17:40:27 -03:00
multifd-qpl.c	multifd: bugfix for incorrect migration data with QPL compression	2025-01-09 17:40:21 -03:00
multifd-uadk.c	migration/multifd: Fix compile error caused by page_size usage	2025-01-09 17:37:50 -03:00
multifd-zero-page.c	migration/multifd: Move pages accounting into multifd_send_zero_page_detect()	2024-09-03 16:24:35 -03:00
multifd-zlib.c	migration/multifd: Make MultiFDMethods const	2024-09-03 16:24:36 -03:00
multifd-zstd.c	migration/multifd: Fix loop conditions in multifd_zstd_send_prepare and multifd_zstd_recv	2024-09-18 14:27:24 -04:00
multifd.c	migration/multifd: Fix compat with QEMU < 9.0	2025-01-09 17:38:35 -03:00
multifd.h	migration/multifd: Cleanup src flushes on condition check	2025-01-09 17:38:27 -03:00
options.c	Accel & Exec patch queue	2024-12-21 11:07:00 -05:00
options.h	migration: Use device_class_set_props_n	2024-12-19 19:33:37 +01:00
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: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
postcopy-ram.h	migration/postcopy: Add postcopy-recover-setup phase	2024-06-21 09:47:59 -03:00
qemu-file.c	migration: remove unnecessary zlib dependency	2024-05-25 13:28:02 +02:00
qemu-file.h	migration: Remove non-multifd compression	2024-05-08 09:20:59 -03:00
ram.c	migration/multifd: Document the reason to sync for save_setup()	2025-01-09 17:38:32 -03:00
ram.h	migration/ram: Move RAM_SAVE_FLAG* into ram.h	2025-01-09 17:38:15 -03:00
rdma.c	migration/rdma: Fix a memory issue for migration	2024-03-11 14:41:40 -04:00
rdma.h	migration/ram: Move RAM_SAVE_FLAG* into ram.h	2025-01-09 17:38:15 -03:00
savevm.c	migration: fix -Werror=maybe-uninitialized	2025-01-29 11:43:03 -03:00
savevm.h	migration: Add Error** argument to qemu_savevm_state_setup()	2024-04-23 18:36:01 -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	migration: Add migration prefix to functions in target.c	2023-09-11 08:34:06 +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: Drop unused parameter for migration_tls_client_create()	2023-05-03 11:24:20 +02:00
tls.h	migration: Drop unused parameter for migration_tls_client_create()	2023-05-03 11:24:20 +02:00
trace-events	migration: cpr-state	2025-01-29 11:43:04 -03:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
vmstate-types.c	migration: Rename vmstate_info_nullptr	2025-01-09 17:39:38 -03:00
vmstate.c	migration: Fix arrays of pointers in JSON writer	2025-01-09 17:39:54 -03:00
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