OpenE2K/qemu-e2k
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qemu-e2k/migration
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Peter Xu 579cedf430 migration: Unify and trace vmstate field_exists() checks 
For both save/load we actually share the logic on deciding whether a field
should exist.  Merge the checks into a helper and use it for both save and
load.  When doing so, add documentations and reformat the code to make it
much easier to read.

The real benefit here (besides code cleanups) is we add a trace-point for
this; this is a known spot where we can easily break migration
compatibilities between binaries, and this trace point will be critical for
us to identify such issues.

For example, this will be handy when debugging things like:

https://gitlab.com/qemu-project/qemu/-/issues/932

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20230906204722.514474-1-peterx@redhat.com>
2023-10-04 13:19:47 +02:00
..
block-dirty-bitmap.c migration: Move rate_limit_max and rate_limit_used to migration_stats 2023-05-18 18:40:51 +02:00
block.c Migration Pull request (20231002) 2023-10-02 14:42:44 -04:00
block.h
channel-block.c io: follow coroutine AioContext in qio_channel_yield() 2023-09-07 20:32:11 -05:00
channel-block.h
channel.c
channel.h
colo-failover.c
colo.c migration: process_incoming_migration_co(): move colo part to colo 2023-05-18 18:40:51 +02:00
dirtyrate.c migration/dirtyrate: Fix precision losses and g_usleep overshoot 2023-08-29 10:19:03 +08:00
dirtyrate.h
exec.c
exec.h
fd.c bulk: Remove pointless QOM casts 2023-06-05 20:48:34 +02:00
fd.h
file.c migration: file URI offset 2023-10-04 13:18:08 +02:00
file.h migration: file URI 2023-10-04 13:16:58 +02:00
global_state.c migration: never fail in global_state_store() 2023-06-02 01:03:19 +02:00
meson.build migration: file URI 2023-10-04 13:16:58 +02:00
migration-hmp-cmds.c migration: Extend query-migrate to provide dirty page limit info 2023-07-26 10:55:56 +02:00
migration-stats.c migration: Don't abuse qemu_file transferred for RDMA 2023-09-29 18:11:21 +02:00
migration-stats.h migration: Don't abuse qemu_file transferred for RDMA 2023-09-29 18:11:21 +02:00
migration.c migration: file URI 2023-10-04 13:16:58 +02:00
migration.h migration: Replace the return path retry logic 2023-09-27 13:58:02 -04:00
multifd-zlib.c migration: spelling fixes 2023-07-25 17:13:20 +03:00
multifd-zstd.c migration: spelling fixes 2023-07-25 17:13:20 +03:00
multifd.c migration/multifd: Rename threadinfo.c functions 2023-07-26 10:55:56 +02:00
multifd.h
options.c migration: enforce multifd and postcopy preempt to be set before incoming 2023-07-26 10:55:56 +02:00
options.h migration: Introduce dirty-limit capability 2023-07-26 10:55:56 +02:00
page_cache.c
page_cache.h
postcopy-ram.c migration: Fix race that dest preempt thread close too early 2023-09-27 13:58:02 -04:00
postcopy-ram.h
qemu-file.c migration/rdma: Simplify the function that saves a page 2023-09-29 18:13:53 +02:00
qemu-file.h migration/rdma: Simplify the function that saves a page 2023-09-29 18:13:53 +02:00
ram-compress.c
ram-compress.h
ram.c Migration Pull request (20231002) 2023-10-02 14:42:44 -04:00
ram.h migration/ram: Expose ramblock_is_ignored() as migrate_ram_is_ignored() 2023-07-12 09:25:37 +02:00
rdma.c migration/rdma: zore out head.repeat to make the error more clear 2023-10-04 10:54:41 +02:00
rdma.h
savevm.c migration: Update error description outside migration.c 2023-10-04 10:54:40 +02:00
savevm.h migration: Add .save_prepare() handler to struct SaveVMHandlers 2023-09-11 08:34:06 +02:00
socket.c
socket.h
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
tls.h
trace-events migration: Unify and trace vmstate field_exists() checks 2023-10-04 13:19:47 +02:00
trace.h
vmstate-types.c
vmstate.c migration: Unify and trace vmstate field_exists() checks 2023-10-04 13:19:47 +02:00
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 bulk: Remove pointless QOM casts 2023-06-05 20:48:34 +02:00
yank_functions.h