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authorHao Xiang <hao.xiang@bytedance.com>2024-03-11 18:00:14 +0000
committerPeter Xu <peterx@redhat.com>2024-03-11 16:57:09 -0400
commit70c25c92e602f393d3c33596530c5f2b18491e55 (patch)
treec4e074cd4255a324fb8281a7637453c9d80ae844 /hw
parent9ae90f73e623c8b8c7ec1fccd8ca493805df8fbd (diff)
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migration/multifd: Enable multifd zero page checking by default.
1. Set default "zero-page-detection" option to "multifd". Now zero page checking can be done in the multifd threads and this becomes the default configuration. 2. Handle migration QEMU9.0 -> QEMU8.2 compatibility. We provide backward compatibility where zero page checking is done from the migration main thread. Signed-off-by: Hao Xiang <hao.xiang@bytedance.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/20240311180015.3359271-7-hao.xiang@linux.dev Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/core/machine.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 9ac5d53..0e9d646 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -32,7 +32,9 @@
#include "hw/virtio/virtio-net.h"
#include "audio/audio.h"
-GlobalProperty hw_compat_8_2[] = {};
+GlobalProperty hw_compat_8_2[] = {
+ { "migration", "zero-page-detection", "legacy"},
+};
const size_t hw_compat_8_2_len = G_N_ELEMENTS(hw_compat_8_2);
GlobalProperty hw_compat_8_1[] = {