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xemu/migration
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Fabiano Rosas 06833d83f8 migration/multifd: Allow multifd without packets 
For the upcoming support to the new 'mapped-ram' migration stream
format, we cannot use multifd packets because each write into the
ramblock section in the migration file is expected to contain only the
guest pages. They are written at their respective offsets relative to
the ramblock section header.

There is no space for the packet information and the expected gains
from the new approach come partly from being able to write the pages
sequentially without extraneous data in between.

The new format also simply doesn't need the packets and all necessary
information can be taken from the standard migration headers with some
(future) changes to multifd code.

Use the presence of the mapped-ram capability to decide whether to
send packets.

This only moves code under multifd_use_packets(), it has no effect for
now as mapped-ram cannot yet be enabled with multifd.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240229153017.2221-15-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
 		2024-03-01 15:42:04 +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 migration: disable auto-converge during bulk block migration 2017-09-27 11:27:14 +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.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 migration: Fix fd protocol for incoming defer 2019-06-05 12:43:55 +02:00
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: Add mapped-ram URI compatibility check 2024-03-01 15:42:04 +08:00
migration.h migration: stop vm for cpr 2024-02-28 11:31:28 +08:00
multifd-zlib.c migration/multifd: Decouple recv method from pages 2024-03-01 15:42:04 +08:00
multifd-zstd.c migration/multifd: Decouple recv method from pages 2024-03-01 15:42:04 +08:00
multifd.c migration/multifd: Allow multifd without packets 2024-03-01 15:42:04 +08:00
multifd.h migration/multifd: Decouple recv method from pages 2024-03-01 15:42:04 +08:00
options.c migration/ram: Introduce 'mapped-ram' migration capability 2024-03-01 15:42:04 +08:00
options.h migration/ram: Introduce 'mapped-ram' migration capability 2024-03-01 15:42:04 +08:00
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 migration: remove error from notifier data 2024-02-28 11:31:28 +08:00
postcopy-ram.h migration: remove error from notifier data 2024-02-28 11:31:28 +08:00
qemu-file.c migration/qemu-file: add utility methods for working with seekable channels 2024-03-01 15:42:04 +08:00
qemu-file.h migration/qemu-file: add utility methods for working with seekable channels 2024-03-01 15:42:04 +08:00
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/ram: Add incoming 'mapped-ram' migration 2024-03-01 15:42:04 +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/ram: Introduce 'mapped-ram' migration capability 2024-03-01 15:42:04 +08:00
savevm.h migration: Add .save_prepare() handler to struct SaveVMHandlers 2023-09-11 08:34:06 +02:00
socket.c migration/multifd: Drop unnecessary helper to destroy IOC 2024-02-28 11:31:28 +08:00
socket.h migration/multifd: Drop unnecessary helper to destroy IOC 2024-02-28 11:31:28 +08:00
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/multifd: Cleanup multifd_recv_sync_main 2024-03-01 15:42:04 +08:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vmstate-types.c Move CPU softfloat unions to cpu-float.h 2022-04-06 14:31:43 +02:00
vmstate.c migration: Make VMStateDescription.subsections const 2023-12-29 11:17:30 +11:00
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