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-rw-r--r--hw/virtio-blk.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/virtio-blk.h b/hw/virtio-blk.h
index 5c281ad..f675375 100644
--- a/hw/virtio-blk.h
+++ b/hw/virtio-blk.h
@@ -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. */
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