From: Markus Armbruster <armbru@redhat.com>
To: Bug 1155403 <1155403@bugs.launchpad.net>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk
Date: Mon, 18 Mar 2013 18:51:29 +0100 [thread overview]
Message-ID: <874ng81tr2.fsf@blackfin.pond.sub.org> (raw)
In-Reply-To: <51474842.6000106@ubuntu.com> (Phillip Susi's message of "Mon, 18 Mar 2013 17:00:50 -0000")
Phillip Susi <psusi@ubuntu.com> writes:
> On 3/18/2013 11:17 AM, Paolo Bonzini wrote:
>> if=virtio means virtio-blk, not virtio-something.
>
> Why do you say that? I would say that virtio means use
> paravirtualized IO rather than emulating some real hardware. Whether
> that ends up being done with virtio-blk, or virtio-scsi is an
> implementation detail.
Not really, because the "detail" requires different drivers in the
guest.
> The media argument seems a perfectly natural
> way to select between the two.
"Perfectly natural"? Me thinks you're overstating your case. Having
"media=cdrom" select virtio-scsi over virtio-blk is at best a hack.
virtio-scsi vs. virtio-blk is *not* about disk vs. CD-ROM. It's about
two different mass storage controllers, one of whom happens not to
support CD-ROMs today.
next prev parent reply other threads:[~2013-03-18 17:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130315022110.10645.10897.malonedeb@wampee.canonical.com>
2013-03-16 0:19 ` [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk Serge Hallyn
2013-03-16 8:27 ` Paolo Bonzini
2013-03-17 2:39 ` Phillip Susi
2013-03-18 9:53 ` Markus Armbruster
2013-03-18 7:45 ` Laszlo Ersek
2013-03-18 9:13 ` Paolo Bonzini
2013-03-18 14:22 ` Phillip Susi
2013-03-18 15:17 ` Paolo Bonzini
2013-03-18 17:00 ` Phillip Susi
2013-03-18 17:51 ` Markus Armbruster [this message]
2013-03-18 17:32 ` Paolo Bonzini
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