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Re: [libvirt] [PATCH 0/2] Add lsi and virtio-scsi qemu caps



On Tue, Aug 07, 2012 at 02:54:33PM +0800, Guannan Ren wrote:
> 
> On qemu-kvm-0.15.1, it supports only lsi scsi controller model.
> On qemu-kvm-0.12.1.2, it supports only virtio-scsi-pci scsi model

This doesn't make sense.  virtio-scsi did not exist until long
after qemu-kvm-0.12.1.2.

> On qemu 1.1.50, it supports both.
> So, instead of using the lsilogic model by default, the patch tries
> to check which model the current QEMU supports, then choose it, lsi
> has the priority.

I'm not convinced we should ever be trying to use virtio scsi by
default, given its wide lack of guest support. If LSI scsi does
not exist, just report an error IMHO, and let virtio scsi require
an explicit config choice.


Daniel
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