Fix incorrect bits of offsets in refcount table entry, l1 table entry and l2 table entry. See REFT_OFFSET_MASK, L1E_OFFSET_MASK and L2E_OFFSET_MASK.
Fix a typo while at the file. Signed-off-by: Hu Tao <hu...@cn.fujitsu.com> --- v2: update comments as well. docs/specs/qcow2.txt | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/docs/specs/qcow2.txt b/docs/specs/qcow2.txt index f19536a..0abf196 100644 --- a/docs/specs/qcow2.txt +++ b/docs/specs/qcow2.txt @@ -192,9 +192,9 @@ as follows: Refcount table entry: - Bit 0 - 8: Reserved (set to 0) + Bit 0 - 7: Reserved (set to 0) - 9 - 63: Bits 9-63 of the offset into the image file at which the + 8 - 63: Bits 8-63 of the offset into the image file at which the refcount block starts. Must be aligned to a cluster boundary. @@ -218,7 +218,7 @@ The L1 table has a variable size (stored in the header) and may use multiple clusters, however it must be contiguous in the image file. L2 tables are exactly one cluster in size. -Given a offset into the virtual disk, the offset into the image file can be +Given an offset into the virtual disk, the offset into the image file can be obtained as follows: l2_entries = (cluster_size / sizeof(uint64_t)) @@ -233,9 +233,9 @@ obtained as follows: L1 table entry: - Bit 0 - 8: Reserved (set to 0) + Bit 0 - 7: Reserved (set to 0) - 9 - 55: Bits 9-55 of the offset into the image file at which the L2 + 8 - 55: Bits 8-55 of the offset into the image file at which the L2 table starts. Must be aligned to a cluster boundary. If the offset is 0, the L2 table and all clusters described by this L2 table are unallocated. @@ -268,9 +268,9 @@ Standard Cluster Descriptor: With version 2, this is always 0. - 1 - 8: Reserved (set to 0) + 1 - 7: Reserved (set to 0) - 9 - 55: Bits 9-55 of host cluster offset. Must be aligned to a + 8 - 55: Bits 8-55 of host cluster offset. Must be aligned to a cluster boundary. If the offset is 0, the cluster is unallocated. -- 1.7.11.7