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xen-devel
Re: [Xen-devel] disk throttling
Mark A. Williamson wrote:
Has the plan of turning Xen into a next-gen BIOS been scrapped? It seems
Xen is becoming more and more dependent on having a specific version of
Linux as dom0?
Our proposed next-gen architecture now consists of:
* Safe Hardware Interface - restricted access to machine resources (memory, IO
regions...). Provided by Xen itself.
* Next gen "BIOS controller" - general machine management... It runs all the
time rather than just at bootup.
* Driver domains - device drivers scheduled pre-emptively, with restricted
hardware access
* Virtual machines - run user applications
In this setup, where would stuff like the net filter be placed? In the
network driver domain? How would one register the IP address of a new
domain?
It would be really cool to be able to run without a full Linux just for
drivers. How much work do you think it would be to port one of the
pre-NGIO Xen drivers to run in a separate VM?
I know you guys focus primarily on server-class machines, but I am
dreaming of running Xen on a 1000+ node cluster we have here, and with
the current mem usage of dom0 (according to postings on this list it has
a hard time coping on 32megs or less), this would waste at least 32
gigabytes of mem, just for dom0s.
Jacob
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