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-rw-r--r--virtio-v1.0-wd01-part1-specification.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/virtio-v1.0-wd01-part1-specification.txt b/virtio-v1.0-wd01-part1-specification.txt
index e8fbe69..ea63531 100644
--- a/virtio-v1.0-wd01-part1-specification.txt
+++ b/virtio-v1.0-wd01-part1-specification.txt
@@ -2251,9 +2251,13 @@ bits as indicated above.
} geometry;
u32 blk_size;
struct virtio_blk_topology {
+ // # of logical blocks per physical block (log2)
u8 physical_block_exp;
+ // offset of first aligned logical block
u8 alignment_offset;
+ // suggested minimum I/O size in blocks
u16 min_io_size;
+ // optimal (suggested maximum) I/O size in blocks
u32 opt_io_size;
} topology;
u8 reserved;