From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 2D3408043A for ; Fri, 17 Mar 2017 13:47:50 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9B7967AE92; Fri, 17 Mar 2017 20:47:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 9B7967AE92 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=lersek@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 9B7967AE92 Received: from lacos-laptop-7.usersys.redhat.com (ovpn-116-70.phx2.redhat.com [10.3.116.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9F4EA5DC1D; Fri, 17 Mar 2017 20:47:49 +0000 (UTC) From: Laszlo Ersek To: edk2-devel-01 Cc: Ard Biesheuvel , Leif Lindholm Date: Fri, 17 Mar 2017 21:47:27 +0100 Message-Id: <20170317204731.31488-9-lersek@redhat.com> In-Reply-To: <20170317204731.31488-1-lersek@redhat.com> References: <20170317204731.31488-1-lersek@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Fri, 17 Mar 2017 20:47:50 +0000 (UTC) Subject: [PATCH v2 08/12] ArmVirtPkg: add XenPlatformHasAcpiDtDxe X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Mar 2017 20:47:50 -0000 This driver produces the EDKII Platform Has ACPI and Platform Has Device Tree protocols, exactly matching the current ACPI / DT exposure on Xen, according to ARM vs. AARCH64. At this point it differs from the QEMU driver PlatformHasAcpiDtDxe in that this one always installs the DT. Cc: Ard Biesheuvel Cc: Leif Lindholm Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek --- ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.inf | 43 ++++++++++++ ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.c | 72 ++++++++++++++++++++ 2 files changed, 115 insertions(+) diff --git a/ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.inf b/ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.inf new file mode 100644 index 000000000000..e25207832c39 --- /dev/null +++ b/ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.inf @@ -0,0 +1,43 @@ +## @file +# Decide whether the firmware should expose an ACPI- and/or a Device Tree-based +# hardware description to the operating system. +# +# Copyright (c) 2017, Red Hat, Inc. +# +# This program and the accompanying materials are licensed and made available +# under the terms and conditions of the BSD License which accompanies this +# distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT +# WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +## + +[Defines] + INF_VERSION = 1.25 + BASE_NAME = XenPlatformHasAcpiDtDxe + FILE_GUID = 6914c46f-d46e-48dc-9998-8a5f64f02553 + MODULE_TYPE = DXE_DRIVER + VERSION_STRING = 1.0 + ENTRY_POINT = XenPlatformHasAcpiDt + +[Sources] + XenPlatformHasAcpiDtDxe.c + +[Packages] + ArmPkg/ArmPkg.dec + ArmVirtPkg/ArmVirtPkg.dec + MdePkg/MdePkg.dec + +[LibraryClasses] + BaseLib + DebugLib + UefiBootServicesTableLib + UefiDriverEntryPoint + +[Protocols] + gEdkiiPlatformHasAcpiProtocolGuid ## SOMETIMES_PRODUCES + gEdkiiPlatformHasDeviceTreeProtocolGuid ## PRODUCES + +[Depex] + TRUE diff --git a/ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.c b/ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.c new file mode 100644 index 000000000000..0c3b1f7c7893 --- /dev/null +++ b/ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.c @@ -0,0 +1,72 @@ +/** @file + Decide whether the firmware should expose an ACPI- and/or a Device Tree-based + hardware description to the operating system. + + Copyright (c) 2017, Red Hat, Inc. + + This program and the accompanying materials are licensed and made available + under the terms and conditions of the BSD License which accompanies this + distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT + WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +**/ + +#include +#include +#include +#include +#include + +EFI_STATUS +EFIAPI +XenPlatformHasAcpiDt ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + EFI_STATUS Status; + + // + // If we fail to install any of the necessary protocols below, the OS will be + // unbootable anyway (due to lacking hardware description), so tolerate no + // errors here. + // + // Always make ACPI available on 64-bit systems. + // + if (MAX_UINTN == MAX_UINT64) { + Status = gBS->InstallProtocolInterface ( + &ImageHandle, + &gEdkiiPlatformHasAcpiProtocolGuid, + EFI_NATIVE_INTERFACE, + NULL + ); + if (EFI_ERROR (Status)) { + goto Failed; + } + } + + // + // Expose the Device Tree unconditionally. + // + Status = gBS->InstallProtocolInterface ( + &ImageHandle, + &gEdkiiPlatformHasDeviceTreeProtocolGuid, + EFI_NATIVE_INTERFACE, + NULL + ); + if (EFI_ERROR (Status)) { + goto Failed; + } + + return Status; + +Failed: + ASSERT_EFI_ERROR (Status); + CpuDeadLoop (); + // + // Keep compilers happy. + // + return Status; +} -- 2.9.3