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cloud-hypervisor/block
Anatol Belski 9eb2b9b0e5 block: qcow: Implement extension parsing for QCOW v3
Add support for parsing QCOW v3 header extensions to read the
backing file format. The QCOW v3 spec allows optional header
extensions between the fixed header and the backing file name.

Implement read_header_extensions() to parse the extension area,
which starts at the header_size offset. At the moment it is
used to read the backing file format. Further extension
processing is open in folow up implementations.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2026-01-15 16:19:15 +00:00
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