From patchwork Fri Oct 14 08:54:54 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 9376211 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 840716022E for ; Fri, 14 Oct 2016 08:58:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72B982A52A for ; Fri, 14 Oct 2016 08:58:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 66FC92A533; Fri, 14 Oct 2016 08:58:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1627D2A52A for ; Fri, 14 Oct 2016 08:58:33 +0000 (UTC) Received: from localhost ([::1]:46080 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1buyK0-0008LG-Be for patchwork-qemu-devel@patchwork.kernel.org; Fri, 14 Oct 2016 04:58:32 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48703) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1buyGk-00068g-Jp for qemu-devel@nongnu.org; Fri, 14 Oct 2016 04:55:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1buyGi-0004jj-Fz for qemu-devel@nongnu.org; Fri, 14 Oct 2016 04:55:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45606) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1buyGe-0004fu-NM; Fri, 14 Oct 2016 04:55:04 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BED507DD34; Fri, 14 Oct 2016 08:55:03 +0000 (UTC) Received: from localhost.localdomain.com (vpn1-4-131.ams2.redhat.com [10.36.4.131]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u9E8svlp031637; Fri, 14 Oct 2016 04:55:01 -0400 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, prem.mallappa@broadcom.com, peter.maydell@linaro.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org, shannon.zhao@linaro.org Date: Fri, 14 Oct 2016 10:54:54 +0200 Message-Id: <1476435295-21885-2-git-send-email-eric.auger@redhat.com> In-Reply-To: <1476435295-21885-1-git-send-email-eric.auger@redhat.com> References: <1476435295-21885-1-git-send-email-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Fri, 14 Oct 2016 08:55:04 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 1/2] ACPI: Add IORT Structure definition X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tn@semihalf.com, drjones@redhat.com, christoffer.dall@linaro.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Prem Mallappa ACPI Spec 6.0 introduces IO Remapping Table Structure. This patch introduces the definitions required to describe the IO relationship between the PCIe root complex and the ITS. This conforms to: "IO Remapping Table System Software on ARM Platforms", Document number: ARM DEN 0049B, October 2015. Signed-off-by: Prem Mallappa Signed-off-by: Eric Auger --- v1 -> v2: - took into account Drew's comments: cleanup comments, remove most defines, add ACPI_IORT_NODE_HEADER_DEF --- include/hw/acpi/acpi-defs.h | 68 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index 9c1b7cb..1cd1e69 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -609,4 +609,72 @@ typedef struct AcpiDmarHardwareUnit AcpiDmarHardwareUnit; /* Masks for Flags field above */ #define ACPI_DMAR_INCLUDE_PCI_ALL 1 +/* + * Input Output Remapping Table (IORT) + * Conforms to "IO Remapping Table System Software on ARM Platforms", + * Document number: ARM DEN 0049B, October 2015 + */ + +struct AcpiIortTable { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + uint32_t node_count; + uint32_t node_offset; + uint32_t reserved; +} QEMU_PACKED; +typedef struct AcpiIortTable AcpiIortTable; + +/* + * IORT node types + */ + +#define ACPI_IORT_NODE_HEADER_DEF /* Node format common fields */ \ + uint8_t type; \ + uint16_t length; \ + uint8_t revision; \ + uint32_t reserved; \ + uint32_t mapping_count; \ + uint32_t mapping_offset;\ + +/* Values for node Type above */ +enum { + ACPI_IORT_NODE_ITS_GROUP = 0x00, + ACPI_IORT_NODE_NAMED_COMPONENT = 0x01, + ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02, + ACPI_IORT_NODE_SMMU = 0x03, + ACPI_IORT_NODE_SMMU_V3 = 0x04 +}; + +struct AcpiIortIdMapping { + uint32_t input_base; + uint32_t id_count; + uint32_t output_base; + uint32_t output_reference; + uint32_t flags; +} QEMU_PACKED; +typedef struct AcpiIortIdMapping AcpiIortIdMapping; + +struct AcpiIortMemoryAccess { + uint32_t cache_coherency; + uint8_t hints; + uint16_t reserved; + uint8_t memory_flags; +} QEMU_PACKED; +typedef struct AcpiIortMemoryAccess AcpiIortMemoryAccess; + +struct AcpiIortItsGroup { + ACPI_IORT_NODE_HEADER_DEF + uint32_t its_count; + uint32_t identifiers[0]; +} QEMU_PACKED; +typedef struct AcpiIortItsGroup AcpiIortItsGroup; + +struct AcpiIortRC { + ACPI_IORT_NODE_HEADER_DEF + AcpiIortMemoryAccess memory_properties; + uint32_t ats_attribute; + uint32_t pci_segment_number; + AcpiIortIdMapping id_mapping_array[0]; +} QEMU_PACKED; +typedef struct AcpiIortRC AcpiIortRC; + #endif