From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57477) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WYF2k-0005Cu-Ee for qemu-devel@nongnu.org; Thu, 10 Apr 2014 09:29:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WYF2e-0005P0-8j for qemu-devel@nongnu.org; Thu, 10 Apr 2014 09:29:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33238) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WYF2e-0005Ov-0e for qemu-devel@nongnu.org; Thu, 10 Apr 2014 09:29:20 -0400 From: Marcel Apfelbaum Date: Thu, 10 Apr 2014 16:29:39 +0300 Message-Id: <1397136581-10500-1-git-send-email-marcel.a@redhat.com> Subject: [Qemu-devel] [SeaBIOS] [PATCH V3 0/2] hw/pci: reserve IO and mem for pci-2-pci bridges with no devices attached List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: seabios@seabios.org Cc: kevin@koconnor.net, kraxel@redhat.com, qemu-devel@nongnu.org, mst@redhat.com v2 -> v3: - Addressed Michael S. Tsirkin's comments: - I/O and Prefetchable Memory are optional. Do not allocate ranges if they are not implemented (2/2). - Note that 2/2 patch can be seen as a separate fix. However, it is related to ranges reservation. v1 -> v2: - Thanks Gerd Hoffmann for the review. - Addressed Michael S. Tsirkin's comments: - Limit capabilities query to 256 iterations, to make sure we don't get into an infinite loop with a broken device. If a pci-2-pci bridge supports hot-plug functionality but there are no devices connected to it, reserve IO/mem in order to be able to attach devices later. Do not waste space, use minimum allowed. Marcel Apfelbaum (2): hw/pci: reserve IO and mem for pci-2-pci bridges with no devices attached hw/pci: check if pci2pci bridges implement optional limit registers src/fw/pciinit.c | 12 +++++----- src/hw/pci.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ src/hw/pci.h | 10 +++++++++ 3 files changed, 82 insertions(+), 7 deletions(-) -- 1.8.3.1