Re: [Xen-devel] Re: [RFC] [PATCH] sysfs support for Xen attributes

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Mark Williamson wrote:

> > These will be text files with simple attrributes. Most will be
> > read-only. It is kind of fun to think about creating a domain by doing
> > something like
> >
> > cat $domain_config > /sys/xen/domain/new
> >
> > but there are some ugly aspects of doing so. Likewise it would be good
> > to add a potential migration host by writing an ip address to
> > /sys/xen/migrate/hosts_to
> >
> > Again, we need to get this solidified before going further.
> >    
> Anthony (cc-ed) did a little work on implementing something like this using 
> FuSE to call the existing management interfaces we have for this 
> functionality.  IIRC, it was mostly targetted at reading information about 
> running domains, but it seemed like a good level to implement these 
> higher-level controls in a virtual FS.
>  
Yeah, I like this idea but I agree that sysfs is not the right place for 
it (it would requiring maintaining a kobject representation of domains 
in the kernel which is going to be painful).
A custom Xen filesystem is definitely the right approach (and even 
already exists :-)).
Regards,

Anthony Liguori

> Cheers,
> Mark
>  

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