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Re: [Qemu-devel] [PATCH 2/9] scsi: VMWare PVSCSI paravirtual device impl
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH 2/9] scsi: VMWare PVSCSI paravirtual device implementation |
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Date: |
Fri, 21 Jun 2013 14:00:17 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 |
Il 21/06/2013 13:44, Dmitry Fleytman ha scritto:
> BTW,
>
> Can't we add to QEMU some simplified interface (device) for boot time only,
> so that system will be able to boot without SeaBIOS support for specific
> device?
We had it, and we dropped it. :)
Writing a SeaBIOS driver is very easy, and the biggest limitation of
pvscsi is that it doesn't support the VMware option ROM. There is a
simple interface using only I/O BARs, or so I was told, exactly for the
purpose of booting---but we do not implement that interface. I'm not
sure how hard it would be to reverse engineere it, I do not have access
to vSphere.
Paolo