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| author | Laszlo Ersek <lersek@redhat.com> | 2013-12-18 19:57:46 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-12-18 19:57:46 +0000 |
| commit | 6476804e3cd2e1da23dee03024a21ab0e5c1f8ec (patch) | |
| tree | 97b99d0eef06b75a1308bf783404229a16c9d42d /OvmfPkg/Include | |
| parent | 21479c3c80fa4742027537d91f57fbf469848208 (diff) | |
| download | edk2-platforms-6476804e3cd2e1da23dee03024a21ab0e5c1f8ec.tar.xz | |
OvmfPkg: VirtioBlkInit(): expose virtio-blk topology in BlockIo
UEFI spec virtio spec
======================================= =================================
LowestAlignedLba EFI_LBA (UINT64) alignment_offset u8
+-------------------------------------- +--------------------------------
| first LBA that is aligned to a | offset of first aligned
| physical block boundary (SCSI | logical block
| definition)
LogicalBlocksPerPhysicalBlock UINT32 physical_block_exp u8
+-------------------------------------- +--------------------------------
| number of logical blocks per | # of logical blocks per
| physical block [...] does not contain | physical block (log2)
| an exponential value
OptimalTransferLengthGranularity UINT32 opt_io_size le32
+-------------------------------------- +--------------------------------
| optimal transfer length granularity | optimal (suggested maximum) I/O
| as a number of logical blocks [...] A | size in blocks
| value of 0 means there is no reported
| optimal transfer length granularity
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15004 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Include')
0 files changed, 0 insertions, 0 deletions