From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48118) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aQdFd-0001yj-2t for qemu-devel@nongnu.org; Tue, 02 Feb 2016 10:52:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aQdFZ-00013o-MH for qemu-devel@nongnu.org; Tue, 02 Feb 2016 10:52:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:51793) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aQdFZ-00013k-Gb for qemu-devel@nongnu.org; Tue, 02 Feb 2016 10:52:17 -0500 References: <1452016711.16471.6.camel@redhat.com> <1452018414.16471.8.camel@redhat.com> <20160106113402.GA13870@cbox> <1452084567.4759.6.camel@redhat.com> <20160122144432.GJ14825@redhat.com> <20160202114933.GA11792@cbox> <20160202121010.GH18461@redhat.com> <20160202125926.GE3688@hawk.localdomain> <20160202140528.GC6190@cbox> From: Eric Blake Message-ID: <56B0D0AC.3010003@redhat.com> Date: Tue, 2 Feb 2016 08:52:12 -0700 MIME-Version: 1.0 In-Reply-To: <20160202140528.GC6190@cbox> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="h9oDdT2xQDJuu0Icn4tQhSpp94XtEKweW" Subject: Re: [Qemu-devel] [libvirt] ARM KVM GICv3 Support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Christoffer Dall , Andrew Jones Cc: Peter Maydell , Eric Auger , Libvirt , Andre Przywara , qemu-devel@nongnu.org, Andrea Bolognani , Marc Zyngier This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --h9oDdT2xQDJuu0Icn4tQhSpp94XtEKweW Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 02/02/2016 07:05 AM, Christoffer Dall wrote: >> >> I'm not familiar enough with libvirt, nor the use of QMP, to really ar= gue >> one way or another, but I find it a bit strange that we'd prefer libvi= rt >> to query two entities over one. And, why should the libvirt installed = on >> a particular host prefer gicv3 as the default, just because KVM suppor= ts >> it, even when QEMU does not?=20 >=20 > I think the assumption here is that if you install a recent libvirt you= > also install a recent QEMU. You always have the risk of things not > working if you have too old a QEMU, right? Libvirt exists for providing back-compat glue. The following combinations are supported: old libvirt, old qemu new libvirt, old qemu new libvirt, new qemu and it is only this combination that might require a libvirt upgrade to work correctly: old libvirt, new qemu --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --h9oDdT2xQDJuu0Icn4tQhSpp94XtEKweW 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 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJWsNCsAAoJEKeha0olJ0Nq/UQH/3HPkD16vjpmreTygTy71Onj 7JrwvjtaUUsHBqa99LgI1DhxHHUhza0kdgay42HGu1QHVP6HHzbaTQOjOSVzWD7n rxlCcvj6MczDmbxzAhvBkhlfbaWaGoB7voQ5GPqjXHPrBwYeDIDcUWaV/yXw9qnA wZFh9a+xEQiy5Th7eyNhWJ5z1drul/Fi2o2fgu+qWJK/WZzREPN0DxMISswc1/Nd WYQ0NmCYzamEuwIXQul0HKecXb6pkHBs86QKz8dOOSQh1eE55zRohX9MDBOuD6Zz 2oBiuXRIoRSpkwNTO8KZf4cLlzu/VSHssjwKUzgupaM8GRl797ds9G3Oho+jEo0= =U1DP -----END PGP SIGNATURE----- --h9oDdT2xQDJuu0Icn4tQhSpp94XtEKweW--