From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Teoh <htmldeveloper@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] How to modify QEMU source to read the bus for SATA directly?
Date: Thu, 16 Apr 2015 16:39:06 +0200 [thread overview]
Message-ID: <552FC98A.7080000@redhat.com> (raw)
In-Reply-To: <CAHnt0GWxnDK-b9GSnmDfH=b1hXQt=YOUt4MsrF_67Qpz-bV2sw@mail.gmail.com>
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
prev parent reply other threads:[~2015-04-16 14:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-16 13:25 [Qemu-devel] How to modify QEMU source to read the bus for SATA directly? Peter Teoh
2015-04-16 13:43 ` Paolo Bonzini
2015-04-16 14:26 ` Peter Teoh
2015-04-16 14:39 ` Paolo Bonzini [this message]
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