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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 6E9C3C49EAA for ; Tue, 5 Nov 2019 09:14:28 +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 4553920869 for ; Tue, 5 Nov 2019 09:14:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4553920869 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]:41824 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iRuuw-0007bj-VT for qemu-devel@archiver.kernel.org; Tue, 05 Nov 2019 04:14:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43182) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iRut0-00056M-BU for qemu-devel@nongnu.org; Tue, 05 Nov 2019 04:12:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iRusy-0007pB-Ni for qemu-devel@nongnu.org; Tue, 05 Nov 2019 04:12:26 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:52204 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iRusv-0007j9-6e; Tue, 05 Nov 2019 04:12:21 -0500 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 3F328DAA120616D688B8; Tue, 5 Nov 2019 17:12:18 +0800 (CST) Received: from linux-OtBuvb.huawei.com (10.175.104.212) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.439.0; Tue, 5 Nov 2019 17:12:11 +0800 From: Heyi Guo To: , Subject: [RFC v2 14/14] virt/acpi: add SDEI table if SDEI is enabled Date: Tue, 5 Nov 2019 17:10:56 +0800 Message-ID: <20191105091056.9541-15-guoheyi@huawei.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20191105091056.9541-1-guoheyi@huawei.com> References: <20191105091056.9541-1-guoheyi@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.104.212] X-CFilter-Loop: Reflected Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.35 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: Mark Rutland , Peter Maydell , "Michael S. Tsirkin" , Marc Zyngier , Shannon Zhao , James Morse , Igor Mammedov , Heyi Guo , wanghaibin.wang@huawei.com, Dave Martin Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add SDEI table if SDEI is enabled, so that guest OS can get aware and utilize the interfaces. Signed-off-by: Heyi Guo Cc: Peter Maydell Cc: Dave Martin Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse Cc: Shannon Zhao Cc: "Michael S. Tsirkin" Cc: Igor Mammedov --- Notes: v2: - Drop SDEI table definition and add comments hw/arm/virt-acpi-build.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 4cd50175e0..73d3f8cd15 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -32,6 +32,7 @@ #include "trace.h" #include "hw/core/cpu.h" #include "target/arm/cpu.h" +#include "target/arm/sdei.h" #include "hw/acpi/acpi-defs.h" #include "hw/acpi/acpi.h" #include "hw/nvram/fw_cfg.h" @@ -475,6 +476,26 @@ build_iort(GArray *table_data, BIOSLinker *linker, V= irtMachineState *vms) "IORT", table_data->len - iort_start, 0, NULL, NULL); } =20 +/* + * ACPI spec 6.2 Software Delegated Exception Interface (SDEI). + * (Revision 1.0) + * "SDEI" was reserved in ACPI 6.2. See "Links to ACPI-Related Documents= " + * (http://uefi.org/acpi) under the heading "Software + * Delegated Exceptions Interface." The definition is under + * "10 Appendix C: ACPI table definitions for SDEI" in the linked docume= nt. + * + * This is a dummy table to expose platform SDEI capbility to OS. + */ +static void +build_sdei(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms= ) +{ + int sdei_start =3D table_data->len; + + (void)acpi_data_push(table_data, sizeof(AcpiTableHeader)); + build_header(linker, table_data, (void *)(table_data->data + sdei_st= art), + "SDEI", table_data->len - sdei_start, 1, NULL, NULL); +} + static void build_spcr(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms= ) { @@ -825,6 +846,11 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuil= dTables *tables) acpi_add_table(table_offsets, tables_blob); build_spcr(tables_blob, tables->linker, vms); =20 + if (sdei_enabled) { + acpi_add_table(table_offsets, tables_blob); + build_sdei(tables_blob, tables->linker, vms); + } + if (ms->numa_state->num_nodes > 0) { acpi_add_table(table_offsets, tables_blob); build_srat(tables_blob, tables->linker, vms); --=20 2.19.1