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From: Peter Maydell <peter.maydell@linaro.org>
To: Bug 1594239 <1594239@bugs.launchpad.net>
Cc: QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [Bug 1594239] Re: After adding more scsi disks for Aarch64 virtual machine, start the VM and got Qemu Error
Date: Tue, 5 Jul 2016 20:57:26 +0100	[thread overview]
Message-ID: <CAFEAcA_-MfVjqVUW_C3xnVkVR9_GC0kzhLastkHfYVQP3Kea-A@mail.gmail.com> (raw)
In-Reply-To: <577BE3A2.7000606@linaro.org>

On 5 July 2016 at 17:43, Tom Hanson <thomas.hanson@linaro.org> wrote:
> On 07/05/2016 10:29 AM, Peter Maydell wrote:
> ...
>> The virt board creates a collection of virtio-mmio transports,
>> so if you create just a backend on the command line (via
>> "-device virtio-scsi-device") it will be plugged into a
>> virtio-bus on a virtio-mmio transport.
>>
>> You almost certainly didn't want to do this -- virtio-mmio
>> is only there for legacy reasons [it predates pci support
>> in the 'virt' board and the device-tree-driven kernel and
>> for a time it was the only way to do virtio].
>
> Should this behavior be changed?  Use PCI as a default instead?

This would break command line compatibility, which is
something we generally try to avoid. If you want
pci, why not just use virtio-scsi-pci ?

thanks
-- PMM

  reply	other threads:[~2016-07-05 19:57 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-20  3:21 [Qemu-devel] [Bug 1594239] [NEW] After adding more scsi disks for Aarch64 virtual machine, start the VM and got Qemu Error Kevin Zhao
2016-06-27 14:53 ` [Qemu-devel] [Bug 1594239] " Peter Maydell
2016-06-28 13:37 ` Kevin Zhao
2016-06-28 16:46 ` Cole Robinson
2016-06-28 17:22 ` Dr. David Alan Gilbert
2016-07-01  0:45 ` Tom Hanson
2016-07-01  4:21 ` Tom Hanson
2016-07-01  8:27 ` Dr. David Alan Gilbert
2016-07-01 14:22   ` Tom Hanson
2016-07-01 15:08 ` Dr. David Alan Gilbert
2016-07-01 22:33   ` Tom Hanson
2016-07-02  1:07 ` Tom Hanson
2016-07-02  9:19 ` Laszlo Ersek (Red Hat)
2016-07-05 14:41 ` Tom Hanson
2016-07-05 15:02   ` Peter Maydell
2016-07-05 15:03     ` Peter Maydell
2016-07-05 14:58 ` Dr. David Alan Gilbert
2016-07-05 15:20 ` Tom Hanson
2016-07-05 16:29   ` Peter Maydell
2016-07-05 16:43     ` Tom Hanson
2016-07-05 19:57       ` Peter Maydell [this message]
2016-07-05 15:29 ` Laszlo Ersek (Red Hat)
2016-07-05 15:46   ` Tom Hanson
2016-07-05 15:47 ` Laszlo Ersek (Red Hat)
2016-07-05 16:34 ` Tom Hanson
2016-07-05 17:50 ` Laszlo Ersek (Red Hat)
2016-07-05 19:10 ` Tom Hanson
2016-07-05 19:26 ` Laszlo Ersek (Red Hat)
2016-07-05 20:22   ` Tom Hanson
2016-07-05 20:40     ` Tom Hanson
2016-07-14 18:04 ` Laszlo Ersek (Red Hat)
2016-09-02 21:34 ` T. Huth
2016-11-18 22:52 ` PabloSaenz

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