qemu-e2k/migration
Peter Xu 25a1f87875 migration/multifd: Move header prepare/fill into send_prepare()
This patch redefines the interfacing of ->send_prepare().  It further
simplifies multifd_send_thread() especially on zero copy.

Now with the new interface, we require the hook to do all the work for
preparing the IOVs to send.  After it's completed, the IOVs should be ready
to be dumped into the specific multifd QIOChannel later.

So now the API looks like:

  p->pages ----------->  send_prepare() -------------> IOVs

This also prepares for the case where the input can be extended to even not
any p->pages.  But that's for later.

This patch will achieve similar goal of what Fabiano used to propose here:

https://lore.kernel.org/r/20240126221943.26628-1-farosas@suse.de

However the send() interface may not be necessary.  I'm boldly attaching a
"Co-developed-by" for Fabiano.

Co-developed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240202102857.110210-14-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-02-05 14:42:10 +08:00
..
block-dirty-bitmap.c Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
block.c Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
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 migration: Fix migration_channel_read_peek() error path 2024-01-04 09:52:42 +08:00
channel.h
colo-failover.c
colo.c Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
dirtyrate.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
dirtyrate.h migration/calc-dirty-rate: millisecond-granularity period 2023-10-10 08:03:50 +08:00
exec.c migration: convert exec backend to accept MigrateAddress. 2023-11-02 11:35:04 +01:00
exec.h migration: convert exec backend to accept MigrateAddress. 2023-11-02 11:35:04 +01:00
fd.c bulk: Remove pointless QOM casts 2023-06-05 20:48:34 +02:00
fd.h
file.c migration: Convert the file backend to the new QAPI syntax 2023-11-02 11:35:04 +01:00
file.h migration: Convert the file backend to the new QAPI syntax 2023-11-02 11:35:04 +01:00
global_state.c migration 1st pull for 9.0 2024-01-05 13:35:25 +00:00
meson.build migration: file URI 2023-10-04 13:16:58 +02:00
migration-hmp-cmds.c migration: Plug memory leak on HMP migrate error path 2024-01-29 11:02:12 +08:00
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: prevent migration when VM has poisoned memory 2024-02-05 14:41:58 +08:00
migration.h migration: Centralize BH creation and dispatch 2024-01-29 11:02:12 +08:00
multifd-zlib.c migration/multifd: Move header prepare/fill into send_prepare() 2024-02-05 14:42:10 +08:00
multifd-zstd.c migration/multifd: Move header prepare/fill into send_prepare() 2024-02-05 14:42:10 +08:00
multifd.c migration/multifd: Move header prepare/fill into send_prepare() 2024-02-05 14:42:10 +08:00
multifd.h migration/multifd: Move header prepare/fill into send_prepare() 2024-02-05 14:42:10 +08:00
options.c migration: fix coverity migrate_mode finding 2024-01-04 09:52:42 +08:00
options.h migration: mode parameter 2023-11-01 16:13:58 +01:00
page_cache.c
page_cache.h
postcopy-ram.c userfaultfd: use 1ULL to build ioctl masks 2024-01-29 11:02:12 +08:00
postcopy-ram.h
qemu-file.c migration: Refactor error handling in source return path 2023-11-02 11:35:03 +01:00
qemu-file.h migration: Refactor error handling in source return path 2023-11-02 11:35:03 +01:00
ram-compress.c migration: Rename ram_compressed_pages() to compress_ram_pages() 2023-10-30 17:41:55 +01:00
ram-compress.h migration: Rename ram_compressed_pages() to compress_ram_pages() 2023-10-30 17:41:55 +01:00
ram.c migration: Drop unnecessary check in ram's pending_exact() 2024-01-29 11:02:12 +08:00
ram.h migration: Change ram_dirty_bitmap_reload() retval to bool 2023-11-02 11:35:03 +01:00
rdma.c migration/rdma: define htonll/ntohll only if not predefined 2024-01-16 11:16:10 +08:00
rdma.h migration: convert rdma backend to accept MigrateAddress 2023-11-02 11:35:03 +01:00
savevm.c migration: Centralize BH creation and dispatch 2024-01-29 11:02:12 +08:00
savevm.h migration: Add .save_prepare() handler to struct SaveVMHandlers 2023-09-11 08:34:06 +02:00
socket.c migration: convert socket backend to accept MigrateAddress 2023-11-02 11:35:03 +01:00
socket.h migration: convert socket backend to accept MigrateAddress 2023-11-02 11:35:03 +01:00
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
tls.h
trace-events migration: Refactor error handling in source return path 2023-11-02 11:35:03 +01:00
trace.h
vmstate-types.c
vmstate.c migration: Make VMStateDescription.subsections const 2023-12-29 11:17:30 +11:00
xbzrle.c
xbzrle.h
yank_functions.c migration/yank: Use channel features 2024-01-29 11:02:12 +08:00
yank_functions.h