From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:47881) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUgvX-0000CB-Oz for qemu-devel@nongnu.org; Tue, 23 Apr 2013 13:22:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UUgvR-0005sg-PQ for qemu-devel@nongnu.org; Tue, 23 Apr 2013 13:22:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34568) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUgvR-0005sD-Ft for qemu-devel@nongnu.org; Tue, 23 Apr 2013 13:22:41 -0400 Message-ID: <5176C33C.6000006@redhat.com> Date: Tue, 23 Apr 2013 11:22:04 -0600 From: Eric Blake MIME-Version: 1.0 References: In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="----enig2MPCFCOOLODUPRJCGSWSB" Subject: Re: [Qemu-devel] Adding Disk-Level Introspection to QEMU List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Wolfgang Richter Cc: qemu-devel@nongnu.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) ------enig2MPCFCOOLODUPRJCGSWSB Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 04/23/2013 11:12 AM, Wolfgang Richter wrote: > I'm interested in adding introspection of disk writes to QEMU for vario= us > applications and research potential. >=20 > What I mean by introspection of disk writes is that, when enabled, each= > write > passing through QEMU to backing storage would also be copied to an > introspection channel for further analysis. Sounds like you would be benefited by the block-backup series, with an NBD server as the point where you inject your introspection. https://lists.gnu.org/archive/html/qemu-devel/2013-04/msg04629.html The existing drive-mirror command can also target an NBD destination, with similar effects. --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org ------enig2MPCFCOOLODUPRJCGSWSB Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJRdsM9AAoJEKeha0olJ0NqyxAH/RRvjIvVxdvF2N9CCIDpaIi0 BXIl2OTpiMx2yhn2NDoMMPJXh/viOUdwI1bOBJG2hqEPJB4/sUG+BadmxJzSewWg 0HIMiqhxi435WpP9IsvRFz18yVmbxj+je5uHcYbTRCuO6NGk3CLZ9QYjGS8jYrLr +cfU4nAvwOWmaCral1fORkeH5M6D9xRpBVrJ/gpoEve+pEfVGoXud3qlGEDwbdhf 5EM5DX/mbMDjc/8khxrOxPz5aUUMrxeETFpudW78mfkImlyrVgw5KQWbslzTmBDm x1qrIVLy74X4ZiSuaDqSM2RcfY5yAPLrAZiDv0gCqIPlPfWhZc9mPsYgLqwV0YY= =1ReK -----END PGP SIGNATURE----- ------enig2MPCFCOOLODUPRJCGSWSB--