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[Qemu-devel] [PATCH 1/3] QAPI: introduce magration capability unix_page_
From: |
Lei Li |
Subject: |
[Qemu-devel] [PATCH 1/3] QAPI: introduce magration capability unix_page_flipping |
Date: |
Fri, 25 Oct 2013 22:59:57 +0800 |
Introduce unix_page_flipping to MigrationCapability for localhost
migration.
Signed-off-by: Paolo Bonzini <address@hidden>
Signed-off-by: Lei Li <address@hidden>
---
qapi-schema.json | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index 60f3fd1..7cb88af 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -661,10 +661,18 @@
# @auto-converge: If enabled, QEMU will automatically throttle down the guest
# to speed up convergence of RAM migration. (since 1.6)
#
+# @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. (since 1.8)
+#
# 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',
+ 'unix-page-flipping'] }
##
# @MigrationCapabilityStatus
--
1.7.7.6