From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51203) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cA7gf-00074W-RR for qemu-devel@nongnu.org; Thu, 24 Nov 2016 23:00:35 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cA7gb-0000pl-O7 for qemu-devel@nongnu.org; Thu, 24 Nov 2016 23:00:33 -0500 Received: from mx1.redhat.com ([209.132.183.28]:56464) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cA7gb-0000nc-IJ for qemu-devel@nongnu.org; Thu, 24 Nov 2016 23:00:29 -0500 Date: Fri, 25 Nov 2016 06:00:26 +0200 From: "Michael S. Tsirkin" Message-ID: <20161125055952-mutt-send-email-mst@kernel.org> References: <20161118103659.10448-1-lersek@redhat.com> <20161124003835.GA20281@morn.lan> <20161124062859-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] [PATCH v3 for-2.9 0/3] q35: add negotiable broadcast SMI List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laszlo Ersek Cc: Kevin O'Connor , Paolo Bonzini , qemu devel list , Gerd Hoffmann , Igor Mammedov , "Jordan Justen (Intel address)" , Michael Kinney On Thu, Nov 24, 2016 at 09:37:41AM +0100, Laszlo Ersek wrote: > On 11/24/16 05:29, Michael S. Tsirkin wrote: > > On Wed, Nov 23, 2016 at 07:38:35PM -0500, Kevin O'Connor wrote: > >> As a general comment - it does seem unfortunate that we keep building > >> adhoc interfaces to communicate information from firmware to QEMU. We > >> have a generic mechanism (fw_cfg) for passing adhoc information from > >> QEMU to the firmware, but the inverse seems to always involve magic > >> pci registers, magic io space registers, specific init ordering, etc. > > > > FWIW I posted a proposal > > fw-cfg: support writeable blobs > > a while ago to try to address that > > > > Yes, here's the discussion (Feb 2016): > > https://www.mail-archive.com/qemu-devel@nongnu.org/msg354852.html > > and it was even part of a pull req (Mar 2016): > > https://www.mail-archive.com/qemu-devel@nongnu.org/msg359348.html > > but it wasn't merged, apparently. > > If QEMU (re)gains this feature, I can try basing the broadcast SMI > negotiation on it. > > Thanks > Laszlo I dropped since it wasn't used yet. Go ahead and include it in your patchset if you like it. -- MST