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 /qapi/migration.json | |
| parent | c3cdf3fb18e5ecf8a3b4dc7223ddbfc53c418eb8 (diff) | |
| download | qemu-5fdbb1dfccfd59661c95cae760b8e276c5b8e65c.zip qemu-5fdbb1dfccfd59661c95cae760b8e276c5b8e65c.tar.gz qemu-5fdbb1dfccfd59661c95cae760b8e276c5b8e65c.tar.bz2 | |
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 'qapi/migration.json')
| -rw-r--r-- | qapi/migration.json | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/qapi/migration.json b/qapi/migration.json index 51d188b..83fdef7 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -671,6 +671,18 @@ 'data': [ 'normal', 'cpr-reboot' ] } ## +# @ZeroPageDetection: +# +# @none: Do not perform zero page checking. +# +# @legacy: Perform zero page checking in main migration thread. +# +# Since: 9.0 +## +{ 'enum': 'ZeroPageDetection', + 'data': [ 'none', 'legacy' ] } + +## # @BitmapMigrationBitmapAliasTransform: # # @persistent: If present, the bitmap will be made persistent or @@ -891,6 +903,10 @@ # @mode: Migration mode. See description in @MigMode. Default is 'normal'. # (Since 8.2) # +# @zero-page-detection: Whether and how to detect zero pages. +# See description in @ZeroPageDetection. Default is 'legacy'. +# (since 9.0) +# # Features: # # @deprecated: Member @block-incremental is deprecated. Use @@ -924,7 +940,8 @@ 'block-bitmap-mapping', { 'name': 'x-vcpu-dirty-limit-period', 'features': ['unstable'] }, 'vcpu-dirty-limit', - 'mode'] } + 'mode', + 'zero-page-detection'] } ## # @MigrateSetParameters: @@ -1083,6 +1100,10 @@ # @mode: Migration mode. See description in @MigMode. Default is 'normal'. # (Since 8.2) # +# @zero-page-detection: Whether and how to detect zero pages. +# See description in @ZeroPageDetection. Default is 'legacy'. +# (since 9.0) +# # Features: # # @deprecated: Member @block-incremental is deprecated. Use @@ -1136,7 +1157,8 @@ '*x-vcpu-dirty-limit-period': { 'type': 'uint64', 'features': [ 'unstable' ] }, '*vcpu-dirty-limit': 'uint64', - '*mode': 'MigMode'} } + '*mode': 'MigMode', + '*zero-page-detection': 'ZeroPageDetection'} } ## # @migrate-set-parameters: @@ -1311,6 +1333,10 @@ # @mode: Migration mode. See description in @MigMode. Default is 'normal'. # (Since 8.2) # +# @zero-page-detection: Whether and how to detect zero pages. +# See description in @ZeroPageDetection. Default is 'legacy'. +# (since 9.0) +# # Features: # # @deprecated: Member @block-incremental is deprecated. Use @@ -1361,7 +1387,8 @@ '*x-vcpu-dirty-limit-period': { 'type': 'uint64', 'features': [ 'unstable' ] }, '*vcpu-dirty-limit': 'uint64', - '*mode': 'MigMode'} } + '*mode': 'MigMode', + '*zero-page-detection': 'ZeroPageDetection'} } ## # @query-migrate-parameters: |