Re: [Xen-devel] Permission for xenstore operation on HVM

[Alessandro Salvatori <sandr8@xxxxxxxxx>]

On Thu, Dec 1, 2011 at 01:45, Vasiliy Tolstov <v.tolstov@xxxxxxxxx> wrote:
> In HVM mode You allow write to /local/domain/$DOMID/data

do you mean that in PV mode one can write to vm-data, and in HVM mode
one can write to data?

in fact in my first message that never went through I had two
theories, and I chopped the first one because I was thinking it
sounded too ridiculous of me to say :)

> theory 1: for HVM guests Xen gives the ownership of the xenstore variables
> to dom0 instead of the domU that is running the guest. My humble guess is
> that Xen assumes that HVM guests are gonna be hypervisor agnostic and
> not gonna be using xenstore. Of course this assumption breaks when you
> have PV-HVM guests.

of course, if that is the case, then at provisioning time one wouldn't
know an HVM guest is gonna actually become a PV-HVM... so it will
still be treated as an HVM guest... sigh...

now, I wonder: can one get the data directory through XAPI though?

thanks!
-Alessandro-

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