From patchwork Fri Jul 12 11:08:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13731629 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D91DCC3DA4A for ; Fri, 12 Jul 2024 11:13:09 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sSECm-0008Fg-Nl; Fri, 12 Jul 2024 07:12:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sSECk-00085q-SA for qemu-devel@nongnu.org; Fri, 12 Jul 2024 07:12:46 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sSECj-00071c-5A for qemu-devel@nongnu.org; Fri, 12 Jul 2024 07:12:46 -0400 Received: from mail.maildlp.com (unknown [172.18.186.31]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4WL86y6w9vz6JB6M; Fri, 12 Jul 2024 19:11:38 +0800 (CST) Received: from lhrpeml500005.china.huawei.com (unknown [7.191.163.240]) by mail.maildlp.com (Postfix) with ESMTPS id E686E1400CF; Fri, 12 Jul 2024 19:12:42 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.19.247) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 12 Jul 2024 12:12:42 +0100 To: , , Markus Armbruster , , CC: , , , , Richard Henderson , Dave Jiang , Huang Ying , Paolo Bonzini , , Michael Roth , Ani Sinha Subject: [PATCH v5 08/13] hw/i386/acpi: Use TYPE_PXB_BUS property acpi_uid for DSDT Date: Fri, 12 Jul 2024 12:08:12 +0100 Message-ID: <20240712110837.1439736-9-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712110837.1439736-1-Jonathan.Cameron@huawei.com> References: <20240712110837.1439736-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.19.247] X-ClientProxiedBy: lhrpeml100004.china.huawei.com (7.191.162.219) To lhrpeml500005.china.huawei.com (7.191.163.240) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron X-Patchwork-Original-From: Jonathan Cameron via From: Jonathan Cameron Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Rather than relying on PCI internals, use the new acpi_property to obtain the ACPI _UID values. These are still the same as the PCI Bus numbers so no functional change. Suggested-by: Igor Mammedov Tested-by: "Huang, Ying" Signed-off-by: Jonathan Cameron Reviewed-by: Igor Mammedov --- v5: Leave the device naming as using bus_num so that we can relax assumption of the UID being only 8 bits (it is but we don't need to assume that) --- hw/i386/acpi-build.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index ee92783836..2eaa4c9203 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1550,6 +1550,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, QLIST_FOREACH(bus, &bus->child, sibling) { uint8_t bus_num = pci_bus_num(bus); uint8_t numa_node = pci_bus_numa_node(bus); + uint32_t uid; /* look only for expander root buses */ if (!pci_bus_is_root(bus)) { @@ -1560,6 +1561,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, root_bus_limit = bus_num - 1; } + uid = object_property_get_uint(OBJECT(bus), "acpi_uid", + &error_fatal); scope = aml_scope("\\_SB"); if (pci_bus_is_cxl(bus)) { @@ -1567,7 +1570,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, } else { dev = aml_device("PC%.02X", bus_num); } - aml_append(dev, aml_name_decl("_UID", aml_int(bus_num))); + aml_append(dev, aml_name_decl("_UID", aml_int(uid))); aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num))); if (pci_bus_is_cxl(bus)) { struct Aml *aml_pkg = aml_package(2);