From: Avi Kivity <avi@qumranet.com>
To: Ian Kirk <blob@blob.co.uk>
Cc: kvm-devel@lists.sourceforge.net,
Chris Wright <chrisw@sous-sol.org>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH] Make virtio devices multi-function
Date: Wed, 23 Apr 2008 09:32:47 +0300 [thread overview]
Message-ID: <480ED80F.5080300@qumranet.com> (raw)
In-Reply-To: <alpine.LFD.1.10.0804222000180.3049@bcny.fcbq.bet>
Ian Kirk wrote:
> Avi Kivity wrote:
>
>
>> For mass storage, we should follow the SCSI model with a single device
>> serving multiple disks, similar to what you suggest. Not sure if the
>> device should have a single queue or one queue per disk.
>>
>
> Don't you just end up re-implementing SCSI then, at which point you might
> as well stick with a 'fake' SCSI device in the guest?
>
A virtio-scsi controller is indeed useful as it can control tapes, media
changers, and other fancy stuff in addition to ordinary disks. For
disks, I'd like to avoid the overhead of scsi command generation and
parsing.
--
Any sufficiently difficult bug is indistinguishable from a feature.
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next prev parent reply other threads:[~2008-04-23 6:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-22 14:15 [PATCH] Make virtio devices multi-function Anthony Liguori
2008-04-22 14:32 ` Avi Kivity
2008-04-22 14:46 ` Anthony Liguori
2008-04-22 14:51 ` Avi Kivity
2008-04-22 15:36 ` Marcelo Tosatti
2008-04-22 16:18 ` Anthony Liguori
2008-04-22 16:27 ` Avi Kivity
2008-04-22 16:31 ` Anthony Liguori
2008-04-22 17:26 ` Marcelo Tosatti
2008-04-22 18:52 ` Anthony Liguori
2008-04-23 6:42 ` Chris Wright
2008-04-22 19:26 ` Daniel P. Berrange
2008-04-22 19:00 ` Ian Kirk
2008-04-23 6:32 ` Avi Kivity [this message]
2008-04-23 20:57 ` Marcelo Tosatti
2008-04-22 15:17 ` Marcelo Tosatti
2008-04-22 19:10 ` Anthony Liguori
2008-04-23 6:35 ` Avi Kivity
2008-04-22 15:12 ` Luca Tettamanti
2008-04-22 15:13 ` Ryan Harper
2008-04-22 15:16 ` Anthony Liguori
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