Introduce x_unix_page_flipping to MigrationCapability for
localhost migration.
Signed-off-by: Paolo Bonzini
Signed-off-by: Lei Li
---
qapi-schema.json | 12 +++-
1 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index 83fa485..ea910ef 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -685,10 +685,20 @@
# @auto-converge: If enabled, QEMU will automatically throttle down the guest
# to speed up convergence of RAM migration. (since 1.6)
#
+# @x-unix-page-flipping: If enabled, QEMU can optimize migration when the
+# destination is a QEMU process that runs on the same host as
+# the source (as is the case for live upgrade). If the migration
+# transport is a Unix socket, QEMU will flip RAM pages directly to
+# the destination, so that memory is only allocated twice for the
+# source and destination processes. Disabled by default.
+# Experimental: will get rid of the x tag after further testing with
+# the new vmsplice. (since 2.0)
+#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
- 'data': ['xbzrle', 'x-rdma-pin-all', 'auto-converge', 'zero-blocks'] }
+ 'data': ['xbzrle', 'x-rdma-pin-all', 'auto-converge', 'zero-blocks',
+ 'x-unix-page-flipping'] }
##
# @MigrationCapabilityStatus
--
1.7.7.6
