[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] Communication between HVM and dom0 through the Hypervisor

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Daniele Sgandurra <dansgan@xxxxxxxx>
  • Date: Wed, 18 Apr 2007 17:21:56 +0200 (CEST)
  • Delivery-date: Wed, 18 Apr 2007 08:20:34 -0700
  • Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.it; h=X-YMail-OSG:Received:Date:From:Subject:To:MIME-Version:Content-Type:Message-ID; b=Su9NYpKBtNgPE/qrL3zniRZTLpB0ejkLTC8IwAKg28V6yyDYwci8+zpi0NLPHH8IyFzCHlpEBfXrDnlFpxKWAw1OvrNvLSEbFvYb39qBYNaylVqpZKym/VJ3RhO8dQmLOT6J29JxF5XJl2zPQCsczt/Jemg7/ZbuRbKsSazDy3E=;
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Is there currently a method for passing information
between a HVM domain and domain 0 directly through the
I understand there could be at least three ways to do

-VMCALL from HVM + params in registers.
-using "PV-on-HVM", but I think the frontend drivers
need to be ported in the mainline Linux kernel and
this is currently being done, right?
-using XenStore/XenBus (is that possible?)

As an example, suppose I have a HVM running Linux (on
Intel IVT-x), and I want to call a callback function
in dom0 each time the HVM contacts the hypervisor,
what would you suggest me to do? Imagine I want to
notify dom0 each time a process issues a system call,
by adding some code in the prologue of the syscall
handler to notify the hypervisor.

Thank you very much :-)

L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: 

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.