Re: [Qemu-devel] How to modify QEMU source to read the bus for SATA directly?

[Paolo Bonzini]

On 16/04/2015 16:26, Peter Teoh wrote:
> 
>     You can use PCI passthrough and let the guest use the whole SATA bus, if
>     you have another way to access other disks on the same bus (e.g. boot
>     from a USB stick or access the filesystems on NFS).
> 
>     Or you can use SCSI passthrough and pass the /dev/sdX device to the
>     guest, e.g.
> 
>         -device virtio-scsi-pci
>         -drive if=none,file=/dev/sdb,id=sdb,cache=none,format=raw
>         -device scsi-block,drive=sdb
> 
>     The guest then will talk to the host's ATA->SCSI translation layer, and
>     will be able to send raw ATA commands via the ATA PASSTHROUGH command.
> 
> Thank you very much, that answer saved me many hours of search/trial and
> errors.   And seems to work for now...need more testing.

FWIW, which one did you use and what kind of command did you need?

Paolo