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vhost: block migration if backend does not log memory

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vhost user does not support LOG_ALL feature bit.
Generally, we should not try to set this bit without
checking that backend can support it first.

Detect and block migration.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2014-06-18 17:20:42 +03:00
parent d9c1647d89
commit 7145872ed3
2 changed files with 12 additions and 0 deletions
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include/hw/virtio/vhost.h
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@ -45,6 +45,7 @@ struct vhost_dev {
bool log_enabled;
vhost_log_chunk_t *log;
unsigned long long log_size;
Error *migration_blocker;
bool force;
bool memory_changed;
hwaddr mem_changed_start_addr;