diff options
| author | Hao Xiang <hao.xiang@bytedance.com> | 2024-03-11 18:00:11 +0000 |
|---|---|---|
| committer | Peter Xu <peterx@redhat.com> | 2024-03-11 16:57:05 -0400 |
| commit | 5fdbb1dfccfd59661c95cae760b8e276c5b8e65c (patch) | |
| tree | 3d8b915fe3da3f2cdc549dd0614d544ed114e067 /migration/migration-hmp-cmds.c | |
| parent | c3cdf3fb18e5ecf8a3b4dc7223ddbfc53c418eb8 (diff) | |
migration/multifd: Add new migration option zero-page-detection.
This new parameter controls where the zero page checking is running.
1. If this parameter is set to 'legacy', zero page checking is
done in the migration main thread.
2. If this parameter is set to 'none', zero page checking is disabled.
Signed-off-by: Hao Xiang <hao.xiang@bytedance.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Link: https://lore.kernel.org/r/20240311180015.3359271-4-hao.xiang@linux.dev
Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'migration/migration-hmp-cmds.c')
| -rw-r--r-- | migration/migration-hmp-cmds.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c index 99b49df5dd..7e96ae6ffd 100644 --- a/migration/migration-hmp-cmds.c +++ b/migration/migration-hmp-cmds.c @@ -344,6 +344,11 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) monitor_printf(mon, "%s: %s\n", MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_COMPRESSION), MultiFDCompression_str(params->multifd_compression)); + assert(params->has_zero_page_detection); + monitor_printf(mon, "%s: %s\n", + MigrationParameter_str(MIGRATION_PARAMETER_ZERO_PAGE_DETECTION), + qapi_enum_lookup(&ZeroPageDetection_lookup, + params->zero_page_detection)); monitor_printf(mon, "%s: %" PRIu64 " bytes\n", MigrationParameter_str(MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE), params->xbzrle_cache_size); @@ -634,6 +639,10 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p->has_multifd_zstd_level = true; visit_type_uint8(v, param, &p->multifd_zstd_level, &err); break; + case MIGRATION_PARAMETER_ZERO_PAGE_DETECTION: + p->has_zero_page_detection = true; + visit_type_ZeroPageDetection(v, param, &p->zero_page_detection, &err); + break; case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE: p->has_xbzrle_cache_size = true; if (!visit_type_size(v, param, &cache_size, &err)) { |