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[PATCH v1 3/4] migration/debug: add checkpoint for migration consistency
From: |
Chuan Zheng |
Subject: |
[PATCH v1 3/4] migration/debug: add checkpoint for migration consistency check |
Date: |
Mon, 26 Oct 2020 21:58:44 +0800 |
Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
---
migration/migration.c | 1 +
migration/savevm.c | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/migration/migration.c b/migration/migration.c
index 0575ecb..f4434c4 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1678,6 +1678,7 @@ static void migrate_fd_cleanup(MigrationState *s)
tmp = s->to_dst_file;
s->to_dst_file = NULL;
qemu_mutex_unlock(&s->qemu_file_lock);
+ MIGRATION_RAM_CONSISTENCY_CHECK();
/*
* Close the file handle without the lock to make sure the
* critical section won't block for long.
diff --git a/migration/savevm.c b/migration/savevm.c
index ff33e21..5f989a8 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -2636,6 +2636,13 @@ int qemu_loadvm_state(QEMUFile *f)
}
qemu_loadvm_state_cleanup();
+ /*
+ * cpu_synchronize_all_post_init->kvm_put_msrs will update the
+ * kvmclock share-mem.
+ * So this's the latest point at which the ram is the same as source
+ */
+ MIGRATION_RAM_CONSISTENCY_CHECK();
+
cpu_synchronize_all_post_init();
return ret;
--
1.8.3.1