On 17.03.20 19:16, Alberto Garcia wrote:
> Subcluster allocation in qcow2 is implemented by extending the
> existing L2 table entries and adding additional information to
> indicate the allocation status of each subcluster.
> 
> This patch documents the changes to the qcow2 format and how they
> affect the calculation of the L2 cache size.
> 
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> ---
>  docs/interop/qcow2.txt | 68 ++++++++++++++++++++++++++++++++++++++++--
>  docs/qcow2-cache.txt   | 19 +++++++++++-
>  2 files changed, 83 insertions(+), 4 deletions(-)

Reviewed-by: Max Reitz <mreitz@redhat.com>