[Xen-devel] Xen as a kernel module

[Jacob Gorm Hansen <jacobg@xxxxxxx>]

hi,

with Xen increasingly depending on Linux for bootstrap, drivers, packet 
filtering etc., would it make sense to have the option of compiling Xen 
as a Linux kernel module, like in VMWare or coLinux?
It seems this would give similar performance to Xen 1.2, while retaining 
most of the benefits of the NGIO model (i.e. not having to port 
drivers). The only downside would be the lack of driver isolation, but 
most people would be willing to live with that is my guess (plus as long 
as there is no IO-MMU a bad driver is still able to take down the 
complete system anyhow).
I imagine this could be done in a way that would also work under other 
host-OSes, like *BSD or Windows.
Any comments?

Jacob


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