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xen-devel
Re: [Xen-devel] [PATCH RFC 1/3] virtio infrastructure
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To: |
"Santos, Jose Renato G" <joserenato.santos@xxxxxx> |
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Subject: |
Re: [Xen-devel] [PATCH RFC 1/3] virtio infrastructure |
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From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Date: |
Mon, 04 Jun 2007 14:19:41 -0700 |
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Cc: |
Jimi Xenidis <jimix@xxxxxxxxxxxxxx>, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>, Xen Mailing List <xen-devel@xxxxxxxxxxxxxxxxxxx>, jmk@xxxxxxxxxxxxxxxxxxx, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, kvm-devel <kvm-devel@xxxxxxxxxxxxxxxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Christian Borntraeger <cborntra@xxxxxxxxxx>, Suzanne McIntosh <skranjac@xxxxxxxxxx>, Anthony Liguori <anthony@xxxxxxxxxxxxx>, Martin Schwidefsky <schwidefsky@xxxxxxxxxx> |
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Mon, 04 Jun 2007 14:18:36 -0700 |
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Thunderbird 1.5.0.10 (X11/20070302) |
Santos, Jose Renato G wrote:
> It seems that we will still need specific devices drivers
> for each different virtualization flavor. For example,
> we will still need to have a specific Xen netfront
> device that talks to a backend device in dom0, using
> page grants, and other Xen specific mechanisms.
> It looks like will still need to maintain all the virtual device
> drivers and in addition we will now have to maintain
> another virtualization layer.
>
The hope is that the Xen-specific elements of the driver will be
restricted to Xen-specific things like grant tables, and the bulk of the
driver and its logic can be common. Whether that can be achieved and
still retain the full performance/features of the entirely Xen-specific
netfront driver remains to be seen. I haven't had a chance to look at
doing any Xen-virtio glue yet, so I'm not really sure how it will work out.
J
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