motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 15:53:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

virtio-blk: add topology support

Browse source 
Export all topology information in the block config structure,
guarded by a new VIRTIO_BLK_F_TOPOLOGY feature flag.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Christoph Hellwig 2010-02-10 23:37:25 +01:00 • committed by Anthony Liguori
parent 428c149b0b
commit 9752c371a2
2 changed files with 12 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
hw/virtio-blk.h
View file

@ -32,6 +32,7 @@
#define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */
/* #define VIRTIO_BLK_F_IDENTIFY 8 ATA IDENTIFY supported, DEPRECATED */
#define VIRTIO_BLK_F_WCACHE 9 /* write cache enabled */
#define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */
struct virtio_blk_config
{
@ -42,6 +43,10 @@ struct virtio_blk_config
uint8_t heads;
uint8_t sectors;
uint32_t _blk_size; /* structure pad, currently unused */
uint8_t physical_block_exp;
uint8_t alignment_offset;
uint16_t min_io_size;
uint32_t opt_io_size;
} __attribute__((packed));
/* These two define direction. */