Re: [Xen-devel] uClibc

[Jerome Brown <jerome@xxxxxxxxxxxxxxx>]

Jacob Gorm Hansen wrote:
> I don't think Xen itself is compiled against any libc. I have a 
> busybox-based (though using glibc right now) initrd which you can use 
> for your unprivileged domains. You can download it from 
> http://www.diku.dk/~jacobg/self-migration/
What size does this run at? I am looking to make dom0 as small as 
possible, and run all the applications that I require under other 
domains, to allow moving them to other machines if required.
> I am working on exactly the same thing, though I am using self-migration 
> in XenLinux rather than the managed migration in Xen. I am already able 
> to migrate to a minimal Xen-host (the network-facing privileged code is 
> about 50 lines of C, there is not even a TCP/IP stack running), and I am 
> currenly working on being able to create new domains using the same 
> mechanism (almost there).
How does the XenLinux self-migration differ from the Xen managed 
migration? What are the advantages of each option. I have only just 
started to look into this, so am not stuck to a specific way of doing 
things at this stage :)
> I am currently on Xen 1.3, because the current Xend is too 
> resource-hungry and complex for my needs. I am crossing my fingers for 
> someone to implement the basics of Xend in C, and when that happens I 
> plan to move to Xen 2.0.
How do the resources used differ? Is Xend currently in python? Is there 
a plan to change this? What has been the reasoning behind developing it 
in python?
> Input and cooperation is welcomed.
I'd love to help. I like the idea of a 'self installing' dom0 that sets 
up another control domain, thereby abstracting all the running processes 
into unprivileged domains for security reasons. As part of this I will 
look to create a HowTo document that details how I acheive this :)
Regards

Jerome


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