From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 873D2C433DB for ; Thu, 25 Feb 2021 08:59:08 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id EFDA764EDB for ; Thu, 25 Feb 2021 08:59:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EFDA764EDB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54310 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lFCUE-0000sY-RZ for qemu-devel@archiver.kernel.org; Thu, 25 Feb 2021 03:59:06 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:40722) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lFCSG-0007Z8-8q; Thu, 25 Feb 2021 03:57:04 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:3051) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lFCSB-0003vu-RD; Thu, 25 Feb 2021 03:57:04 -0500 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DmRT56R5vzjRGQ; Thu, 25 Feb 2021 16:55:37 +0800 (CST) Received: from localhost (10.174.186.67) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.498.0; Thu, 25 Feb 2021 16:56:46 +0800 From: Ying Fang To: Subject: [RFC PATCH 5/5] hw/arm/virt-acpi-build: add PPTT table Date: Thu, 25 Feb 2021 16:56:27 +0800 Message-ID: <20210225085627.2263-6-fangying1@huawei.com> X-Mailer: git-send-email 2.28.0.windows.1 In-Reply-To: <20210225085627.2263-1-fangying1@huawei.com> References: <20210225085627.2263-1-fangying1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.174.186.67] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.32; envelope-from=fangying1@huawei.com; helo=szxga06-in.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, drjones@redhat.com, zhang.zhanghailiang@huawei.com, mst@redhat.com, salil.mehta@huawei.com, shannon.zhaosl@gmail.com, qemu-arm@nongnu.org, alistair.francis@wdc.com, Ying Fang , imammedo@redhat.com, Jiajie Li Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add the Processor Properties Topology Table (PPTT) to present CPU topology information to the guest. A three-level cpu topology is built in accord with the linux kernel currently does. Tested-by: Jiajie Li Signed-off-by: Ying Fang --- hw/arm/virt-acpi-build.c | 50 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index bb91152fe2..38d50ce66c 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -436,6 +436,50 @@ build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) vms->oem_table_id); } +static void +build_pptt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) +{ + int pptt_start = table_data->len; + int uid = 0, cpus = 0, socket = 0; + MachineState *ms = MACHINE(vms); + unsigned int smp_cores = ms->smp.cores; + unsigned int smp_threads = ms->smp.threads; + + acpi_data_push(table_data, sizeof(AcpiTableHeader)); + + for (socket = 0; cpus < ms->possible_cpus->len; socket++) { + uint32_t socket_offset = table_data->len - pptt_start; + int core; + + build_socket_hierarchy(table_data, 0, socket); + + for (core = 0; core < smp_cores; core++) { + uint32_t core_offset = table_data->len - pptt_start; + int thread; + + if (smp_threads <= 1) { + build_processor_hierarchy(table_data, + ACPI_PPTT_ACPI_PROCESSOR_ID_VALID | + ACPI_PPTT_ACPI_LEAF_NODE, + socket_offset, uid++); + } else { + build_processor_hierarchy(table_data, + ACPI_PPTT_ACPI_PROCESSOR_ID_VALID, + socket_offset, core); + for (thread = 0; thread < smp_threads; thread++) { + build_thread_hierarchy(table_data, core_offset, uid++); + } + } + } + cpus += smp_cores * smp_threads; + } + + build_header(linker, table_data, + (void *)(table_data->data + pptt_start), "PPTT", + table_data->len - pptt_start, 2, + vms->oem_id, vms->oem_table_id); +} + /* GTDT */ static void build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) @@ -688,6 +732,7 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) unsigned dsdt, xsdt; GArray *tables_blob = tables->table_data; MachineState *ms = MACHINE(vms); + bool cpu_topology_enabled = !vmc->no_cpu_topology; table_offsets = g_array_new(false, true /* clear */, sizeof(uint32_t)); @@ -707,6 +752,11 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) acpi_add_table(table_offsets, tables_blob); build_madt(tables_blob, tables->linker, vms); + if (ms->smp.cpus > 1 && cpu_topology_enabled) { + acpi_add_table(table_offsets, tables_blob); + build_pptt(tables_blob, tables->linker, vms); + } + acpi_add_table(table_offsets, tables_blob); build_gtdt(tables_blob, tables->linker, vms); -- 2.23.0