Re: [PATCHv5 3/3] vhost_net: a kernel-level virtio server

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On Wed, Sep 16, 2009 at 10:11 PM, Gregory Haskins
<gregory.haskins@xxxxxxxxx> wrote:
> It is certainly not a requirement to make said
> chip somehow work with existing drivers/facilities on bare metal, per
> se.  Why should virtual systems be different?

i'd guess it's an issue of support resources.  a hardware developer
creates a chip and immediately sells it, getting small but assured
revenue, with it they write (or pays to write) drivers for a couple of
releases, and stop to manufacture it as soon as it's not profitable.

software has a much longer lifetime, especially at the platform-level
(and KVM is a platform for a lot of us). also, being GPL, it's cheaper
to produce but has (much!) more limited resources.  creating a new
support issue is a scary thought.


-- 
Javier
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