From: "Michael R. Hines" <mrhi...@us.ibm.com>
New capabilities include the use of RDMA acceleration,
use of network buffering, and keepalive support, as documented
in patch #1.
Signed-off-by: Michael R. Hines <mrhi...@us.ibm.com>
---
qapi-schema.json | 36 +++++++++++++++++++++++++++++++++++-
1 file changed, 35 insertions(+), 1 deletion(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index 98abdac..1fdf208 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -720,10 +720,44 @@
# @auto-converge: If enabled, QEMU will automatically throttle down the guest
# to speed up convergence of RAM migration. (since 1.6)
#
+# @mc: The migration will never end, and the VM will instead be continuously
+# micro-checkpointed (MC). Use the command migrate-set-mc-delay to
+# control the frequency at which the checkpoints occur.
+# Disabled by default. (Since 2.x)
+#
+# @mc-net-disable: Deactivate network buffering against outbound network
+# traffic while Micro-Checkpointing (@mc) is active.
+# Enabled by default. Disabling will make the MC protocol inconsistent
+# and potentially break network connections upon an actual failure.
+# Only for performance testing. (Since 2.x)
+#
+# @mc-rdma-copy: MC requires creating a local-memory checkpoint before
+# transmission to the destination. This requires heavy use of
+# memcpy() which dominates the processor pipeline. This option
+# makes use of *local* RDMA to perform the copy instead of the CPU.
+# Enabled by default only if the migration transport is RDMA.
+# Disabled by default otherwise. (Since 2.x)
+#
+# @rdma-keepalive: RDMA connections do not timeout by themselves if a peer
+# has disconnected prematurely or failed. User-level keepalives
+# allow the migration to abort cleanly if there is a problem with the
+# destination host. For debugging, this can be problematic as
+# the keepalive may cause the peer to abort prematurely if we are
+# at a GDB breakpoint, for example.
+# Enabled by default. (Since 2.x)
+#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
- 'data': ['xbzrle', 'x-rdma-pin-all', 'auto-converge', 'zero-blocks'] }
+ 'data': ['xbzrle',
+ 'rdma-pin-all',
+ 'auto-converge',
+ 'zero-blocks',
+ 'mc',
+ 'mc-net-disable',
+ 'mc-rdma-copy',
+ 'rdma-keepalive'
+ ] }
##
# @MigrationCapabilityStatus
--
1.8.1.2
