[07/18] qapi: add dirty-bitmaps migration capability
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Message ID 1471343175-14945-8-git-send-email-vsementsov@virtuozzo.com
State New
Headers show

Commit Message

Vladimir Sementsov-Ogievskiy Aug. 16, 2016, 10:26 a.m. UTC
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 include/migration/migration.h | 1 +
 migration/migration.c         | 9 +++++++++
 qapi-schema.json              | 4 +++-
 3 files changed, 13 insertions(+), 1 deletion(-)

Comments

Fam Zheng Aug. 17, 2016, 9:06 a.m. UTC | #1
On Tue, 08/16 13:26, Vladimir Sementsov-Ogievskiy wrote:
>  bool migrate_use_events(void)
>  {
>      MigrationState *s;
> diff --git a/qapi-schema.json b/qapi-schema.json
> index 5658723..6386fbc 100644
> --- a/qapi-schema.json
> +++ b/qapi-schema.json
> @@ -553,11 +553,13 @@
>  #          been migrated, pulling the remaining pages along as needed. NOTE: If
>  #          the migration fails during postcopy the VM will fail.  (since 2.6)
>  #
> +# @dirty-bitmaps: If enabled, QEMU will migrate named dirty bitmaps. (since 2.6)

This need to be 2.8.

Fam

Patch
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diff --git a/include/migration/migration.h b/include/migration/migration.h
index ca93765..223e9ec 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -293,6 +293,7 @@  void migrate_del_blocker(Error *reason);
 bool migrate_postcopy(void);
 bool migrate_postcopy_ram(void);
 bool migrate_zero_blocks(void);
+bool migrate_dirty_bitmaps(void);
 
 bool migrate_auto_converge(void);
 
diff --git a/migration/migration.c b/migration/migration.c
index 01a7bd5..7d56a8e 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1257,6 +1257,15 @@  int migrate_decompress_threads(void)
     return s->parameters.decompress_threads;
 }
 
+bool migrate_dirty_bitmaps(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->enabled_capabilities[MIGRATION_CAPABILITY_DIRTY_BITMAPS];
+}
+
 bool migrate_use_events(void)
 {
     MigrationState *s;
diff --git a/qapi-schema.json b/qapi-schema.json
index 5658723..6386fbc 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -553,11 +553,13 @@ 
 #          been migrated, pulling the remaining pages along as needed. NOTE: If
 #          the migration fails during postcopy the VM will fail.  (since 2.6)
 #
+# @dirty-bitmaps: If enabled, QEMU will migrate named dirty bitmaps. (since 2.6)
+#
 # Since: 1.2
 ##
 { 'enum': 'MigrationCapability',
   'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',
-           'compress', 'events', 'postcopy-ram'] }
+           'compress', 'events', 'postcopy-ram', 'dirty-bitmaps'] }
 
 ##
 # @MigrationCapabilityStatus