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authorrusty <rusty@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2013-10-14 09:57:34 +0000
committerrusty <rusty@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>2013-10-14 09:57:34 +0000
commita70adf9c6672b8d4e4b5b49138865378e99b6970 (patch)
tree0a7e101bb78aad7c6751216197cbccd25cd233c6
parent9a42c29745aaaf17724104ef3c896ff958ac2c63 (diff)
2.5.2.3: document topology fields
From: Paolo Bonzini <pbonzini@redhat.com> This completes the changes from yesterday. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Approved at 2013-10-08 meeting: https://lists.oasis-open.org/archives/virtio/201310/msg00087.html See:https://lists.oasis-open.org/archives/virtio-comment/201308/msg00030.html Signed-off-by: Rusty Russell <rusty@au1.ibm.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@63 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
-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;