Hi
I have a question regarding ability of a domU to read Xenstored. Is it possible
for domU to read some of the values from xenstored? like its own domID? Or some
other information? To be more specific can a simple user level program like
get_my_domID.C do it? Or do we have to write some kernel module to do that job?
With my setup of virtual machines, I am ''not at all'' concerned
about the security.
The question arises from the fact that (obviously it is not openly possible)
that how can a domU know what dom0 is it on, especially if domU wants to
broadcast its host to other domU''s? I totally understand this is not
supposed to be in Xen architecture, so please don''t ask why I want to
do this :).
I also understand this question has been asked so many times in the list, but I
am not able to find any definitive answer.
Best Regards,
Atif
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root processes can read xenstore via a kernel driver. xenstore-read¹ for example should work fine in a domU. So you can poke some identifier into xenstore from dom0 and read it in domU. -- Keir On 28/3/08 06:45, "Muhammad Atif" <m_atif_s@yahoo.com> wrote:> Hi > I have a question regarding ability of a domU to read Xenstored. Is it > possible for domU to read some of the values from xenstored? like its own > domID? Or some other information? To be more specific can a simple user level > program like get_my_domID.C do it? Or do we have to write some kernel module > to do that job? With my setup of virtual machines, I am ''not at all'' concerned > about the security. > > The question arises from the fact that (obviously it is not openly possible) > that how can a domU know what dom0 is it on, especially if domU wants to > broadcast its host to other domU''s? I totally understand this is not supposed > to be in Xen architecture, so please don''t ask why I want to do this :). > > I also understand this question has been asked so many times in the list, but > I am not able to find any definitive answer. > > Best Regards, > Atif > > > > > > Never miss a thing. Make Yahoo your homepage. > <http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs> > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel