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Re: [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk |
Date: |
Mon, 18 Mar 2013 18:51:29 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) |
Phillip Susi <address@hidden> 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.
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Serge Hallyn, 2013/03/15
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Paolo Bonzini, 2013/03/16
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Phillip Susi, 2013/03/17
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Laszlo Ersek, 2013/03/18
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Paolo Bonzini, 2013/03/18
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Paolo Bonzini, 2013/03/18
- [Qemu-devel] [Bug 1155403] Re: virtio cdrom detected as hard disk, Paolo Bonzini, 2013/03/18