From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37807) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YzkI2-00005G-KV for qemu-devel@nongnu.org; Tue, 02 Jun 2015 07:23:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YzkI1-0000FF-NP for qemu-devel@nongnu.org; Tue, 02 Jun 2015 07:23:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38424) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YzkI1-0000F6-J9 for qemu-devel@nongnu.org; Tue, 02 Jun 2015 07:23:25 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 4BB251BE351 for ; Tue, 2 Jun 2015 11:23:25 +0000 (UTC) From: Marcel Apfelbaum Date: Tue, 2 Jun 2015 14:23:01 +0300 Message-Id: <1433244192-27624-7-git-send-email-marcel@redhat.com> In-Reply-To: <1433244192-27624-1-git-send-email-marcel@redhat.com> References: <1433244192-27624-1-git-send-email-marcel@redhat.com> Subject: [Qemu-devel] [PATCH V8 06/17] hw/acpi: add support for i440fx 'snooping' root busses List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: marcel@redhat.com, mst@redhat.com If the machine has extra root busses that are snooping to the i440fx host bridge, we need to add them to acpi in order to be properly detected by guests. Signed-off-by: Marcel Apfelbaum --- hw/i386/acpi-build.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 50b93bd..a7e248d 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -626,6 +626,7 @@ build_ssdt(GArray *table_data, GArray *linker, uint32_t nr_mem = machine->ram_slots; unsigned acpi_cpus = guest_info->apic_id_limit; Aml *ssdt, *sb_scope, *scope, *pkg, *dev, *method, *crs, *field, *ifctx; + PCIBus *bus = NULL; int i; ssdt = init_aml_allocator(); @@ -637,6 +638,28 @@ build_ssdt(GArray *table_data, GArray *linker, /* Reserve space for header */ acpi_data_push(ssdt->buf, sizeof(AcpiTableHeader)); + /* Extra PCI root buses are implemented only for i440fx */ + bus = find_i440fx(); + if (bus) { + QLIST_FOREACH(bus, &bus->child, sibling) { + uint8_t bus_num = pci_bus_num(bus); + + /* look only for expander root buses */ + if (!pci_bus_is_root(bus)) { + continue; + } + + scope = aml_scope("\\_SB"); + dev = aml_device("PC%.02X", bus_num); + aml_append(dev, + aml_name_decl("_UID", aml_string("PC%.02X", bus_num))); + aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A03"))); + aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num))); + aml_append(scope, dev); + aml_append(ssdt, scope); + } + } + scope = aml_scope("\\_SB.PCI0"); /* build PCI0._CRS */ crs = aml_resource_template(); -- 2.1.0