Peter Xu 53a4bf6830 migration: Allow caps to be set when preempt or multifd cap enabled ...

With commit 82137e6c8c ("migration: enforce multifd and postcopy preempt to
be set before incoming"), and if postcopy preempt / multifd is enabled, one
cannot setup any capability because these checks would always fail.

(qemu) migrate_set_capability xbzrle off
Error: Postcopy preempt must be set before incoming starts

To fix it, check existing cap and only raise an error if the specific cap
changed.

Fixes: 82137e6c8c ("migration: enforce multifd and postcopy preempt to be set before incoming")
Reviewed-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Juraj Marcin <jmarcin@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
(cherry picked from commit 17bec9235b)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

2025-05-25 13:14:52 +03:00

..

block-dirty-bitmap.c

migration: Add Error** argument to add_bitmaps_to_list()

2024-04-23 18:36:01 -04:00

channel-block.c

migration: fix SEEK_CUR offset calculation in qio_channel_block_seek

2025-04-05 16:48:28 +03:00

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: Put thread names together with macros

2024-10-31 15:48:18 -04:00

cpu-throttle.c

migration: Support periodic RAMBlock dirty bitmap sync

2024-10-31 15:48:18 -04:00

dirtyrate.c

migration/dirtyrate: Silence warning about strcpy() on OpenBSD

2024-10-31 15:48:18 -04:00

dirtyrate.h

migration/calc-dirty-rate: millisecond-granularity period

2023-10-10 08:03:50 +08:00

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

Merge tag 'migration-20240104-pull-request' of https://gitlab.com/peterx/qemu into staging

2024-01-05 13:35:25 +00:00

meson.build

migration: Move cpu-throttle.c from system to migration

2024-10-31 15:48:18 -04:00

migration-hmp-cmds.c

migration: replace assert(0) with g_assert_not_reached()

2024-09-24 13:53:35 +02:00

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: Check current_migration in migration_is_running()

2024-11-13 13:02:45 -05:00

migration.h

migration: correct multifd receive thread name

2024-12-02 14:20:44 -05:00

multifd-nocomp.c

multifd: bugfix for migration using compression methods

2025-01-13 11:25:57 +03:00

multifd-qatzip.c

multifd: bugfix for incorrect migration data with qatzip compression

2025-01-13 11:25:57 +03:00

multifd-qpl.c

multifd: bugfix for incorrect migration data with QPL compression

2025-01-13 11:25:57 +03:00

multifd-uadk.c

migration/multifd: Fix compile error caused by page_size usage

2025-01-12 15:53:02 +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

2025-01-12 15:54:21 +03:00

multifd.h

migration: Introduce 'qatzip' compression method

2024-09-09 10:55:40 -04:00

options.c

migration: Allow caps to be set when preempt or multifd cap enabled

2025-05-25 13:14:52 +03:00

options.h

migration: Remove unused migrate_zero_blocks

2024-10-08 15:28:55 -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

migration: Put thread names together with macros

2024-10-31 15:48:18 -04:00

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/ram: Add load start trace event

2024-10-31 15:48:18 -04:00

ram.h

migration: Unexport ram_mig_init()

2024-10-31 15:48:18 -04:00

rdma.c

migration/rdma: Fix a memory issue for migration

2024-03-11 14:41:40 -04:00

rdma.h

migration: convert rdma backend to accept MigrateAddress

2023-11-02 11:35:03 +01:00

savevm.c

migration: Fix extra cleanup at postcopy listen

2024-11-25 16:21:55 -05:00

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/ram: Add load start trace event

2024-10-31 15:48:18 -04:00

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

2025-01-13 11:25:57 +03:00

vmstate.c

migration: Fix arrays of pointers in JSON writer

2025-01-13 11:25:57 +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