[Qemu-devel] [PATCH 2/3] migration: add migrate_unix_page_flipping()

[Lei Li]

Add migrate_unix_page_flipping() to check if
MIGRATION_CAPABILITY_UNIX_PAGE_FLIPPING is enabled.

Reviewed-by: Paolo Bonzini <address@hidden>
Signed-off-by: Lei Li <address@hidden>
---
 include/migration/migration.h |    3 +++
 migration.c                   |    9 +++++++++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/include/migration/migration.h b/include/migration/migration.h
index 140e6b4..7e5d01a 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -131,10 +131,13 @@ void migrate_add_blocker(Error *reason);
 void migrate_del_blocker(Error *reason);
 
 bool migrate_rdma_pin_all(void);
+
 bool migrate_zero_blocks(void);
 
 bool migrate_auto_converge(void);
 
+bool migrate_unix_page_flipping(void);
+
 int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen,
                          uint8_t *dst, int dlen);
 int xbzrle_decode_buffer(uint8_t *src, int slen, uint8_t *dst, int dlen);
diff --git a/migration.c b/migration.c
index 2b1ab20..4ac466b 100644
--- a/migration.c
+++ b/migration.c
@@ -541,6 +541,15 @@ int64_t migrate_xbzrle_cache_size(void)
     return s->xbzrle_cache_size;
 }
 
+bool migrate_unix_page_flipping(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->enabled_capabilities[MIGRATION_CAPABILITY_UNIX_PAGE_FLIPPING];
+}
+
 /* migration thread support */
 
 static void *migration_thread(void *opaque)
-- 
1.7.7.6