diff options
| author | Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru> | 2020-10-03 20:13:02 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-10-06 08:34:49 +0200 |
| commit | bbacffc5f7a1a9318afe62f4eb20b3584acb6aa1 (patch) | |
| tree | afeda8bf70bf4cefa8609f80b9c9ce3f441c4034 /block/qcow2.h | |
| parent | 56db1198a417838f17ffb7a7546c731deab02938 (diff) | |
qcow2: introduce icount field for snapshots
This patch introduces the icount field for saving within the snapshot.
It is required for navigation between the snapshots in record/replay mode.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Acked-by: Kevin Wolf <kwolf@redhat.com>
--
v7 changes:
- also fix the test which checks qcow2 snapshot extra data
Message-Id: <160174518284.12451.2301137308458777398.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index b71e444fca..125ea9679b 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -206,6 +206,7 @@ typedef struct QEMU_PACKED QCowSnapshotHeader { typedef struct QEMU_PACKED QCowSnapshotExtraData { uint64_t vm_state_size_large; uint64_t disk_size; + uint64_t icount; } QCowSnapshotExtraData; @@ -219,6 +220,8 @@ typedef struct QCowSnapshot { uint32_t date_sec; uint32_t date_nsec; uint64_t vm_clock_nsec; + /* icount value for the moment when snapshot was taken */ + uint64_t icount; /* Size of all extra data, including QCowSnapshotExtraData if available */ uint32_t extra_data_size; /* Data beyond QCowSnapshotExtraData, if any */ |