diff options
| author | Laszlo Ersek <lersek@redhat.com> | 2017-03-17 13:47:35 +0100 |
|---|---|---|
| committer | Laszlo Ersek <lersek@redhat.com> | 2017-03-28 14:07:38 +0200 |
| commit | 786f476323a6795354aa3269c556c8c234525052 (patch) | |
| tree | c1f52c15864ca7b9576b64ba136033f0bc9f0db1 /EmbeddedPkg | |
| parent | 05db0948cc60f8dfcc32aba4cb62c3f94f06c98b (diff) | |
| download | edk2-786f476323a6795354aa3269c556c8c234525052.tar.gz edk2-786f476323a6795354aa3269c556c8c234525052.tar.bz2 edk2-786f476323a6795354aa3269c556c8c234525052.zip | |
EmbeddedPkg: introduce PlatformHasAcpiLib
Add the shorter-term library instance outlined in the previous patch to
EmbeddedPkg, so that we can imbue AcpiTableDxe with a protocol dependency
on EDKII_PLATFORM_HAS_ACPI_GUID.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'EmbeddedPkg')
| -rw-r--r-- | EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.c | 36 | ||||
| -rw-r--r-- | EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.inf | 40 |
2 files changed, 76 insertions, 0 deletions
diff --git a/EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.c b/EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.c new file mode 100644 index 0000000000..2c73e71769 --- /dev/null +++ b/EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.c @@ -0,0 +1,36 @@ +/** @file
+ A hook-in library for MdeModulePkg/Universal/Acpi/AcpiTableDxe.
+
+ Plugging this library instance into AcpiTableDxe makes
+ EFI_ACPI_TABLE_PROTOCOL and (if enabled) EFI_ACPI_SDT_PROTOCOL depend on the
+ platform's dynamic decision whether to expose an ACPI-based hardware
+ description to the operating system.
+
+ Universal and platform specific DXE drivers that produce ACPI tables depend
+ on EFI_ACPI_TABLE_PROTOCOL / EFI_ACPI_SDT_PROTOCOL in turn.
+
+ 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 <Base.h>
+
+RETURN_STATUS
+EFIAPI
+PlatformHasAcpiInitialize (
+ VOID
+ )
+{
+ //
+ // Do nothing, just imbue AcpiTableDxe with a protocol dependency on
+ // EDKII_PLATFORM_HAS_ACPI_GUID.
+ //
+ return RETURN_SUCCESS;
+}
diff --git a/EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.inf b/EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.inf new file mode 100644 index 0000000000..6268293ca9 --- /dev/null +++ b/EmbeddedPkg/Library/PlatformHasAcpiLib/PlatformHasAcpiLib.inf @@ -0,0 +1,40 @@ +## @file
+# A hook-in library for MdeModulePkg/Universal/Acpi/AcpiTableDxe.
+#
+# Plugging this library instance into AcpiTableDxe makes
+# EFI_ACPI_TABLE_PROTOCOL and (if enabled) EFI_ACPI_SDT_PROTOCOL depend on the
+# platform's dynamic decision whether to expose an ACPI-based hardware
+# description to the operating system.
+#
+# Universal and platform specific DXE drivers that produce ACPI tables depend
+# on EFI_ACPI_TABLE_PROTOCOL / EFI_ACPI_SDT_PROTOCOL in turn.
+#
+# 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 = PlatformHasAcpiLib
+ FILE_GUID = 29beb028-0958-447b-be0a-12229235d77d
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PlatformHasAcpiLib|DXE_DRIVER
+ CONSTRUCTOR = PlatformHasAcpiInitialize
+
+[Sources]
+ PlatformHasAcpiLib.c
+
+[Packages]
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdePkg/MdePkg.dec
+
+[Depex]
+ gEdkiiPlatformHasAcpiGuid
|