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Re: [Xen-devel] Guest to Host communication


Thanks, we'll have a look at that.


On Thu, Oct 31, 2013 at 08:02:29PM +0000, Ian Campbell wrote:
> On Thu, 2013-10-31 at 19:42 +0100, Jose A. Lopes wrote:
> > When you say "look inside" the filesystem do you mean to mount that
> > filesystem
> > in the host OS? If so, it seems that it is very dangerous to mount
> > guest filesystems
> > due to a number of exploits.
> If you only need r/o access from the host then you could use
> tools/libfsimage (which has python binding, used by pygrub) which at
> least constrains things to a userspace process and not a kernel mode
> exploit. With suitable privilege dropping this can be made reasonably
> safe...
> Ian.

Jose Antonio Lopes
Ganeti Engineering
Google Germany GmbH
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