From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56124) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YJJwH-0006Gq-1c for qemu-devel@nongnu.org; Thu, 05 Feb 2015 05:45:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YJJwB-0002mY-OJ for qemu-devel@nongnu.org; Thu, 05 Feb 2015 05:45:36 -0500 Received: from mail-wi0-x235.google.com ([2a00:1450:400c:c05::235]:41893) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YJJwB-0002mR-Fx for qemu-devel@nongnu.org; Thu, 05 Feb 2015 05:45:31 -0500 Received: by mail-wi0-f181.google.com with SMTP id fb4so9605236wid.2 for ; Thu, 05 Feb 2015 02:45:30 -0800 (PST) Date: Thu, 5 Feb 2015 10:45:23 +0000 From: Stefan Hajnoczi Message-ID: <20150205104523.GA4027@stefanha-thinkpad.redhat.com> References: <1421913839-22448-1-git-send-email-sfeldma@gmail.com> <1421913839-22448-4-git-send-email-sfeldma@gmail.com> <20150202161912.GB10862@stefanha-thinkpad> <54D0AC31.2050209@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="AhhlLboLdkugWU4S" Content-Disposition: inline In-Reply-To: <54D0AC31.2050209@redhat.com> Subject: Re: [Qemu-devel] [PATCH v5 03/10] rocker: add register programming guide List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: jiri@resnulli.us, roopa@cumulusnetworks.com, john.fastabend@gmail.com, qemu-devel@nongnu.org, sfeldma@gmail.com, dsahern@gmail.com, jasowang@redhat.com --AhhlLboLdkugWU4S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 03, 2015 at 12:08:33PM +0100, Paolo Bonzini wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 >=20 >=20 >=20 > On 02/02/2015 17:19, Stefan Hajnoczi wrote: > > How does the CPU detect that the device has completed the reset=20 > > procedure? Is this supposed to be synchronous? If yes, is that a=20 > > good idea (i.e. hopefully resetting doesn't involve any blocking=20 > > operations or operations that take a long time)? >=20 > Most of the time in QEMU reset is synchronous. Think of block devices > that do bdrv_drain_all() as part of reset! That doesn't mean we should add more cases. Stefan --AhhlLboLdkugWU4S Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJU00nDAAoJEJykq7OBq3PI4q0H/RgWcp46Oi9+A/ia6bTRx2GC qQhcfcADJSCvCl/p962O9k5IVwx5oFss/pVFX7MeRkvO+moPI7d0VPgrIINAd4PU CkUUS6+ocJhzR5iCPMROYtFzxwN7b3IhgOnVx57D58iqQKYrDDw0OerAdmOcdl3D nx5TJxxe2NeacF05zHUK4rNKw8qFrC3t5NLnQq8nb8z01fNpH1yvda2m+bq7hLPY XahDgEnK+gOu5zXOTJsBmBx+SZLV/fXK7gbFXmpOPbMZRwDNFYn1SrzkyZizMI1s 1CV1RQF6OKrCWAc44r/tO9EMHCh8zBzyC88thDiCLrA9QYsOz7LhaRwENzyvswU= =xEj8 -----END PGP SIGNATURE----- --AhhlLboLdkugWU4S--