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Re: [Qemu-devel] Why is SeaBIOS used with -kernel?

From: Paolo Bonzini
Subject: Re: [Qemu-devel] Why is SeaBIOS used with -kernel?
Date: Sat, 2 Apr 2016 07:30:51 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

On 01/04/2016 22:05, Kevin O'Connor wrote:
> I looked closer at your setup and it appears the SeaBIOS virtio-scsi
> driver is very slow because it does a full search of all 256 possible
> scsi targets.  This full scan takes a lot of time.  I put together a
> quick patch (see below) to stop the scan early.  Gerd/Paulo, do you
> know if what I've done is valid and/or if there is a better way we can
> limit the virtio-scsi scan?

No, it's not possible because target numbers are arbitrary.  We can
submit all 256 requests at the same time perhaps.


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