diff options
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index a20d91f399..29afb59e48 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -44,6 +44,10 @@ * (128 GB for 512 byte clusters, 2 EB for 2 MB clusters) */ #define QCOW_MAX_REFTABLE_SIZE 0x800000 +/* 32 MB L1 table is enough for 2 PB images at 64k cluster size + * (128 GB for 512 byte clusters, 2 EB for 2 MB clusters) */ +#define QCOW_MAX_L1_SIZE 0x2000000 + /* indicate that the refcount of the referenced cluster is exactly one. */ #define QCOW_OFLAG_COPIED (1ULL << 63) /* indicate that the cluster is compressed (they never have the copied flag) */ |