From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44361) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YENpW-000343-MM for qemu-devel@nongnu.org; Thu, 22 Jan 2015 14:54:15 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YENpT-0008AE-Br for qemu-devel@nongnu.org; Thu, 22 Jan 2015 14:54:14 -0500 From: Marcel Apfelbaum Date: Thu, 22 Jan 2015 21:52:39 +0200 Message-Id: <1421956363-23502-14-git-send-email-marcel@redhat.com> In-Reply-To: <1421956363-23502-1-git-send-email-marcel@redhat.com> References: <1421956363-23502-1-git-send-email-marcel@redhat.com> Subject: [Qemu-devel] [PATCH RFC 13/17] hw/pci: inform bios if the system has more than one pci bridge List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: seabios@seabios.org, kraxel@redhat.com, mst@redhat.com, quintela@redhat.com, agraf@suse.de, alex.williamson@redhat.com, kevin@koconnor.net, qemu-ppc@nongnu.org, hare@suse.de, imammedo@redhat.com, amit.shah@redhat.com, pbonzini@redhat.com, leon.alrae@imgtec.com, aurelien@aurel32.net, rth@twiddle.net From: Marcel Apfelbaum The bios looks for 'etc/extra-pci-roots' to decide if is going to scan further buses after bus 0 tree. Signed-off-by: Marcel Apfelbaum --- hw/i386/pc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index e07f1fa..9ef0917 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1073,9 +1073,22 @@ typedef struct PcGuestInfoState { static void pc_guest_info_machine_done(Notifier *notifier, void *data) { + PCIHostState *host; + int hosts = 0; PcGuestInfoState *guest_info_state = container_of(notifier, PcGuestInfoState, machine_done); + HOST_BRIDGE_FOREACH(host) { + hosts++; + } + + if (hosts && guest_info_state->info.fw_cfg) { + uint64_t *val = g_malloc(sizeof(*val)); + *val = cpu_to_le64(hosts - 1); + fw_cfg_add_file(guest_info_state->info.fw_cfg, + "etc/extra-pci-roots", val, sizeof(*val)); + } + acpi_setup(&guest_info_state->info); } -- 2.1.0