From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53556) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XDSHG-0006Eu-C0 for qemu-devel@nongnu.org; Sat, 02 Aug 2014 01:54:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XDSH8-0006x1-SF for qemu-devel@nongnu.org; Sat, 02 Aug 2014 01:54:46 -0400 Received: from mout.web.de ([212.227.17.11]:63124) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XDSH8-0006wv-IA for qemu-devel@nongnu.org; Sat, 02 Aug 2014 01:54:38 -0400 Message-ID: <53DC7D16.1050509@web.de> Date: Sat, 02 Aug 2014 07:54:30 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <20140730131605.GA25923@redhat.com> <1406731566.2963.53.camel@ul30vt.home> <1406906753.2963.188.camel@ul30vt.home> <1406910924.2963.227.camel@ul30vt.home> <53DBC2C4.3030801@web.de> <1406913384.2963.232.camel@ul30vt.home> In-Reply-To: <1406913384.2963.232.camel@ul30vt.home> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="w8IKLfGFfIJdxdc53dMeTk9I6gNu8VMbA" Subject: Re: [Qemu-devel] vfio in the guest: no available reset mechanism List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alex Williamson Cc: "Michael S. Tsirkin" , Le Tan , qemu-devel This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --w8IKLfGFfIJdxdc53dMeTk9I6gNu8VMbA Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 2014-08-01 19:16, Alex Williamson wrote: >> Also, it may let some of our device >> models deviate from their real versions (I suppose, e.g., none of the >> e1000 devices we currently emulate exposed FLR). >=20 > Of course, but what are the chances that the driver will care? No drivers of GPOSes, but special or legacy OSes may do so. Keep in mind that Intel e.g. is documenting their PCI devices with fixed config space addresses for their capability. Also, we completely lack PM caps so far. Adding them would already have the value of increasing emulation accuracy. And here I think we are free to always implement reset behavior behind D3->D0 transitions. So my believe is that this will be the better path. Jan --w8IKLfGFfIJdxdc53dMeTk9I6gNu8VMbA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlPcfRgACgkQitSsb3rl5xQPegCfYnn+LZP2DLfnJoC93GHt4dJ4 hqwAoKbOaoxKDaKI3hezrQ5cyvLP/i9f =boF6 -----END PGP SIGNATURE----- --w8IKLfGFfIJdxdc53dMeTk9I6gNu8VMbA--