From nobody Mon Feb 9 22:38:27 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1572945273; cv=none; d=zoho.com; s=zohoarc; b=ArG4pxzNTn3VwpemdI/RryAuVxaMxBpuP9K9/Cjgpwabat31UpGbsmdx5oLmfT0iHG2nQoPA42VuAbbISkT9Vx0jY0mBsa9c+xuq/TlrSjX35L5fOdm6JYCzp8X6VzQC/Ki79guX92mom3FCzCArEeEMy7ocOHhfo7B6q0FuJaE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1572945273; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Hg7fHwdSTHIuAU2yB8E8nYFrDn7wpuBhej4NYXlrNe4=; b=NLlQaSBggXwjkRb6vJWy9frIhPDT+KiKUF4Pbq+2w8y/uXjOuIMlkmI0Qs/u+cUr0l/gzFFIoUKi441pT68I71GRuv5pT04Dg1GTwGFx00uVutFyw2VaZDB8SudasJfHrA103bws96+1xg6lBRAnoOMBxKaZrgcyKyz/0h3a4GY= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 15729452731491018.6694767645361; Tue, 5 Nov 2019 01:14:33 -0800 (PST) Received: from localhost ([::1]:41824 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iRuv1-0007bj-PE for importer@patchew.org; Tue, 05 Nov 2019 04:14:31 -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 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" 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, Vir= tMachineState *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 document. + * + * 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_star= t), + "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, AcpiBuildT= ables *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