From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41259) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dY5KH-0004EH-QI for qemu-devel@nongnu.org; Thu, 20 Jul 2017 02:52:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dY5KE-0005Ga-P5 for qemu-devel@nongnu.org; Thu, 20 Jul 2017 02:52:45 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54162) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dY5KE-0005GH-Il for qemu-devel@nongnu.org; Thu, 20 Jul 2017 02:52:42 -0400 Message-ID: <1500533554.6553.1.camel@redhat.com> From: Gerd Hoffmann Date: Thu, 20 Jul 2017 08:52:34 +0200 In-Reply-To: <1500470414-7911-1-git-send-email-zuban32s@gmail.com> References: <1500470414-7911-1-git-send-email-zuban32s@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [SeaBIOS] [RFC PATCH 0/2] Allow RedHat PCI bridges reserve more buses than necessary during init List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aleksandr Bezzubikov , seabios@seabios.org Cc: marcel@redhat.com, qemu-devel@nongnu.org On Wed, 2017-07-19 at 16:20 +0300, Aleksandr Bezzubikov wrote: > Now PCI bridges (and PCIE root port too) get a bus range number in > system init, > basing on currently plugged devices. That's why when one wants to > hotplug another bridge, > it needs his child bus, which the parent is unable to provide. > The suggested workaround is to have vendor-specific capability in > RedHat generic pcie-root-port > that contains number of additional bus to reserve on BIOS PCI init. Where is the qemu patch for this? What about window sizes? IIRC there was a plan to provide allocation hints for them too ... cheers, Gerd