[Qemu-devel] [PULL 03/12] migration: Add multifd capability

[Juan Quintela <quintela@redhat.com>]

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 include/migration/migration.h | 1 +
 migration/migration.c         | 9 +++++++++
 qapi-schema.json              | 5 +++--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/migration/migration.h b/include/migration/migration.h
index 7528cc2..e8bba55 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -308,6 +308,7 @@ bool migrate_postcopy_ram(void);
 bool migrate_zero_blocks(void);

 bool migrate_auto_converge(void);
+bool migrate_use_multifd(void);

 int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen,
                          uint8_t *dst, int dlen);
diff --git a/migration/migration.c b/migration/migration.c
index 2b179c6..37af7a4 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1369,6 +1369,15 @@ bool migrate_use_events(void)
     return s->enabled_capabilities[MIGRATION_CAPABILITY_EVENTS];
 }

+bool migrate_use_multifd(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->enabled_capabilities[MIGRATION_CAPABILITY_X_MULTIFD];
+}
+
 int migrate_use_xbzrle(void)
 {
     MigrationState *s;
diff --git a/qapi-schema.json b/qapi-schema.json
index 61151f3..ff7579e 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -865,12 +865,13 @@
 #        side, this process is called COarse-Grain LOck Stepping (COLO) for
 #        Non-stop Service. (since 2.8)
 #
+# @x-multifd: Use more than one fd for migration (since 2.9)
+#
 # Since: 1.2
 ##
 { 'enum': 'MigrationCapability',
   'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',
-           'compress', 'events', 'postcopy-ram', 'x-colo'] }
-
+           'compress', 'events', 'postcopy-ram', 'x-colo', 'x-multifd'] }
 ##
 # @MigrationCapabilityStatus:
 #
-- 
2.7.4