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xen-devel
Re: [Xen-devel] How to detect if a machine is a Virtual machine ??
On 12/23/2009 10:34 AM, Michal Novotny wrote:
On 12/23/2009 10:16 AM, John Haxby wrote:
On 22/12/09 10:37, Michal Novotny wrote:
Hi Sachin,
the tool is not in the virtual machine. This is the tool that's in
dom0. Since there is a source code for this one you could scp it to
the guest, compile and run inside the guest environment. There is no
need to provide a guest with this tool by default and in fact this
is really impossible so it's better to scp it to the guest and
compile there.
It's also worth pointing out that the underlying test for xen in this
program executes a particular instruction to find the information
about its environment. What that means is that it's possible to
write a version of ./tools/misc/xen-detect.c that will work in any
guest machine OS.
But one more point, if you want to know whether XEN_PV is returned for
dom0 PV guest or domU (since it's the same for both) you can try to
look for /proc/xen/privcmd. This one is available only in dom0 because
privileged commands are for privileged domain (domain-0) only...
Oh, sorry, I did mean for domU PV guest or dom0, of course...
Michal
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