From nobody Mon Feb 9 11:33:40 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1632486752919962.5871799566477; Fri, 24 Sep 2021 05:32:32 -0700 (PDT) Received: from localhost ([::1]:45082 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mTkNS-0007ME-P4 for importer@patchew.org; Fri, 24 Sep 2021 08:32:30 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47006) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTkJV-0004QR-EP for qemu-devel@nongnu.org; Fri, 24 Sep 2021 08:28:25 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:36439) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTkJT-00017p-S5 for qemu-devel@nongnu.org; Fri, 24 Sep 2021 08:28:25 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-45-18g2E-OkOWCuPieGK94YZg-1; Fri, 24 Sep 2021 08:28:21 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B1A1F50755; Fri, 24 Sep 2021 12:28:20 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.37.153.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id B97F462465; Fri, 24 Sep 2021 12:28:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1632486503; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UzVGPOcQwd8MppwZewv1rAPop1Nx3hqtaTv5xOZEarE=; b=J55/Oti5zR/fBZLVh8vTCzlf6JqftjH/+IAjq7L6JFNuuJ3NsyGLQxApwrqUPk25fuDjZ4 QBCXiZPYXeUKmlmzEGbjMXF6gt3dKDcNJIVmvHOvvEeX3Ahgagh7hw6orYU8M/fe5VWvY1 SSzglfCWfyNz1KviFLYfVpQn9TOvVho= X-MC-Unique: 18g2E-OkOWCuPieGK94YZg-1 From: Igor Mammedov To: qemu-devel@nongnu.org Subject: [PATCH v4 02/35] acpi: build_rsdt: use acpi_table_begin()/acpi_table_end() instead of build_header() Date: Fri, 24 Sep 2021 08:27:29 -0400 Message-Id: <20210924122802.1455362-3-imammedo@redhat.com> In-Reply-To: <20210924122802.1455362-1-imammedo@redhat.com> References: <20210924122802.1455362-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=imammedo@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.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; Received-SPF: pass client-ip=170.10.129.124; envelope-from=imammedo@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.473, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, 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: ani@anisinha.ca, Eric Auger , mst@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1632486753794100001 Content-Type: text/plain; charset="utf-8" it replaces error-prone pointer arithmetic for build_header() API, with 2 calls to start and finish table creation, which hides offests magic from API user. While at it switch to build_append_int_noprefix() to build entries to other tables (which also removes some manual offset calculations). Signed-off-by: Igor Mammedov Reviewed-by: Eric Auger --- v4: * add expected doc comment above build_rsdt() (Eric Auger ) v3: * s/acpi_init_table|acpi_table_composed/acpi_table_begin|acpi_table_end/ --- include/hw/acpi/acpi-defs.h | 10 ---------- hw/acpi/aml-build.c | 31 +++++++++++++++---------------- 2 files changed, 15 insertions(+), 26 deletions(-) diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index cf9f44299c..ccfa3382aa 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -149,16 +149,6 @@ struct AcpiSerialPortConsoleRedirection { typedef struct AcpiSerialPortConsoleRedirection AcpiSerialPortConsoleRedirection; =20 -/* - * ACPI 1.0 Root System Description Table (RSDT) - */ -struct AcpiRsdtDescriptorRev1 { - ACPI_TABLE_HEADER_DEF /* ACPI common table header */ - uint32_t table_offset_entry[]; /* Array of pointers to other */ - /* ACPI tables */ -} QEMU_PACKED; -typedef struct AcpiRsdtDescriptorRev1 AcpiRsdtDescriptorRev1; - /* * ACPI 2.0 eXtended System Description Table (XSDT) */ diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 229a3eb654..616a292229 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -1884,33 +1884,32 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsd= pData *rsdp_data) 32); } =20 -/* Build rsdt table */ +/* + * ACPI 1.0 Root System Description Table (RSDT) + */ void build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets, const char *oem_id, const char *oem_table_id) { int i; - unsigned rsdt_entries_offset; - AcpiRsdtDescriptorRev1 *rsdt; - int rsdt_start =3D table_data->len; - const unsigned table_data_len =3D (sizeof(uint32_t) * table_offsets->l= en); - const unsigned rsdt_entry_size =3D sizeof(rsdt->table_offset_entry[0]); - const size_t rsdt_len =3D sizeof(*rsdt) + table_data_len; - - rsdt =3D acpi_data_push(table_data, rsdt_len); - rsdt_entries_offset =3D (char *)rsdt->table_offset_entry - table_data-= >data; + AcpiTable table =3D { .sig =3D "RSDT", .rev =3D 1, + .oem_id =3D oem_id, .oem_table_id =3D oem_table_id= }; + + acpi_table_begin(&table, table_data); for (i =3D 0; i < table_offsets->len; ++i) { uint32_t ref_tbl_offset =3D g_array_index(table_offsets, uint32_t,= i); - uint32_t rsdt_entry_offset =3D rsdt_entries_offset + rsdt_entry_si= ze * i; + uint32_t rsdt_entry_offset =3D table.array->len; =20 - /* rsdt->table_offset_entry to be filled by Guest linker */ + /* reserve space for entry */ + build_append_int_noprefix(table.array, 0, 4); + + /* mark position of RSDT entry to be filled by Guest linker */ bios_linker_loader_add_pointer(linker, - ACPI_BUILD_TABLE_FILE, rsdt_entry_offset, rsdt_entry_size, + ACPI_BUILD_TABLE_FILE, rsdt_entry_offset, 4, ACPI_BUILD_TABLE_FILE, ref_tbl_offset); + } - build_header(linker, table_data, - (void *)(table_data->data + rsdt_start), - "RSDT", rsdt_len, 1, oem_id, oem_table_id); + acpi_table_end(linker, &table); } =20 /* Build xsdt table */ --=20 2.27.0