Add serial number support for virtio_blk, V3
Get series with b4
b4 am [email protected]Versions newest first
- v1 Latest2 patches 7 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | Add serial number support for virtio_blk, V3hw/ hw/ sysemu.h | +18 | 1 reply | |
| 2/2 | Add serial number support for virtio_blk, V3drivers/ include/ | +35 | 6 replies |
Reviews trailers per patch
No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.
Cover letter [PATCH 0/2] Add serial number support for virtio_blk, V3
[Rework of earlier patch, 2/2 modified to use an existing interface]
This patch allows passing of a virtio_blk drive serial number from qemu into a guest's virtio_blk driver, and provides a means to access the serial number from a guest's userspace.
Equivalent functionality currently exists for IDE and SCSI, however it is not yet implemented for virtio. Scenarios exist where guest code relies on a unique drive serial number to correctly identify the machine environment in which it exists.
The following two patches implement the above:
qemu-vblk-serial-3.patch
which provides the qemu missing bits to interpret a '-drive .. serial=XYZ ..' flag, and:
virtio_blk-serial-3.patch
which extracts this information and makes it available to guest userspace via an HDIO_GET_IDENTITY ioctl, eg: 'hdparm -i /dev/vda'.
The above patches are relative to qemu-kvm.git and 2.6.29.3 respectively.
-john
Signature · 1 line
[email protected]