Re: Xen?

[Ian Duggan]

Actually, nevermind. I was misunderstood what Xen was. I thought it was a 
usermode virtual machine. It isn't.

--Ian


On Wednesday 29 October 2003 10:51 am, Ian Duggan wrote:
> Does anyone have plans to get any of the current L4 kernels working with
> Xen? They claim to have pretty good perfomance, but require a modified
> kernel to work. Might be useful for speeding up development. Xen currently
> has a version of the 2.4 linux kernel working with it, and apparently
> they've worked with Microsoft to get XP running on it as well.
>
> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html
>
> This one bit from the TODO shares some goals with uKernels:
>
> =====================================
> We'd also like to experiment moving the network and block device
> drivers out of Xen, and each into their own special domains that are
> given access to the specific set of h/w resources they need to
> operate.  This will provide some isolation against faulty device
> drivers, potentially allowing them to be restarted on failure. There
> may be more context switches incurred, but due to Xen's pipelined
> asynchronous i/o interface we expect this overhead to be amortised.
> This architecture would also allow device drivers to be easily
> upgraded independent of Xen, which is necessary for our vision of Xen
> as a next-gen BIOS replacement.
> =====================================
>
> -- Ian
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Ian Duggan    address@hidden    http://www.ianduggan.net
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
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-- 

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Ian Duggan    address@hidden    http://www.ianduggan.net                    
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