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authorHao Xiang <hao.xiang@bytedance.com>2024-03-11 18:00:12 +0000
committerPeter Xu <peterx@redhat.com>2024-03-11 16:57:09 -0400
commit303e6f54f9657be76ee060006ee2d4cacff263a0 (patch)
tree4d7d96ccc9ae988077f477aa7e543479aeef5eee /hw/core
parent5fdbb1dfccfd59661c95cae760b8e276c5b8e65c (diff)
downloadfocaccia-qemu-303e6f54f9657be76ee060006ee2d4cacff263a0.tar.gz
focaccia-qemu-303e6f54f9657be76ee060006ee2d4cacff263a0.zip
migration/multifd: Implement zero page transmission on the multifd thread.
1. Add zero_pages field in MultiFDPacket_t.
2. Implements the zero page detection and handling on the multifd
threads for non-compression, zlib and zstd compression backends.
3. Added a new value 'multifd' in ZeroPageDetection enumeration.
4. Adds zero page counters and updates multifd send/receive tracing
format to track the newly added counters.

Signed-off-by: Hao Xiang <hao.xiang@bytedance.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240311180015.3359271-5-hao.xiang@linux.dev
Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'hw/core')
-rw-r--r--hw/core/qdev-properties-system.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index 71a21bf24e..7eca2f2377 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -696,7 +696,7 @@ const PropertyInfo qdev_prop_granule_mode = {
 const PropertyInfo qdev_prop_zero_page_detection = {
     .name = "ZeroPageDetection",
     .description = "zero_page_detection values, "
-                   "none,legacy",
+                   "none,legacy,multifd",
     .enum_table = &ZeroPageDetection_lookup,
     .get = qdev_propinfo_get_enum,
     .set = qdev_propinfo_set_enum,