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

[Keir Fraser]

On 12 Jan 2006, at 15:14, Dave Hansen wrote:

> > This is a good set of questions. We have about half dozen files in
> > /proc/xen right now. One is an obvious canididate to stick in /dev, as
> > it has primarily an ioctl() interface.
>
> Actually, anything with an ioctl interface is probably a good cantidate
> for a writable sysfs file.  The basic idea is that we prefer something
> in sysfs with a discrete, unique name.  It also makes it a lot easier 
> to
> develop with because you can look at the values from scripts, and you
> don't have to worry about synchronizing any headers.
>
> So, what kind of ioctls are we talking about?

They are pretty low level. e.g., pass-thru a raw hypercall direct to 
xen, map another VM's pages into my address space (given a list of page 
frames), etc. very strongly binary, and unlikely to be useful for 
scripting.

 -- Keir

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/