On Fri, 2006年05月19日 at 18:01 +0100, Christian Limpach wrote:
> On 5/19/06, Jeremy Katz <katzj@xxxxxxxxxx> wrote:
> > On Fri, 2006年05月19日 at 10:43 +0100, Christian Limpach wrote:
> > > Also, the guest domain xenstore interface was never really intended to
> > > be used in anger, it was only added to support driver domains getting
> > > information about the devices to configure. The immediate issue would
> > > be that access to xenstore is through a file in /proc/xen and I'd
> > > expect that to change at some point. Might be good to already add the
> > > new path to all tools as a fallback option now. Any suggestions for
> > > where this would end up in /sys I presume?
> >
> > Actually, I'd suggest just taking it out and shooting it altogether.
>
> Well, no.
>
> > What was the _intended_ use of having this exposed to the guest,
> > especially given that anything exposed shouldn't be considered a stable
> > ABI/API?
>
> Let me copy/paste from my previous message you replied to and quoted:
> it was only added to support driver domains getting information about
> the devices to configure.
... one of these days I'll learn to read :-)
But isn't the device configuration there happening from the kernel?
I'll admit I haven't played with getting any of the device passthrough
stuff going since those patches went in. I'm just not clear on what
benefit having userspace being able to frob at xenstore from domU really
has. And in any case, getting it upstream is going to be an uphill
battle at best
Jeremy
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