From ad223a1c542217e2a9d06548dd596405e68e2a0b Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Wed, 22 Feb 2017 02:09:47 +0100 Subject: [PATCH] OvmfPkg/QemuFwCfgS3Lib: add initial Base Null library instance This library instance returns constant FALSE from QemuFwCfgS3Enabled(), and all other library functions trigger assertion failures. It is suitable for QEMU targets and machine types that never enable S3. The QemuFwCfgS3Enabled() implementation is copied from "ArmVirtPkg/Library/QemuFwCfgLib/QemuFwCfgLib.c". Stubs for further QemuFwCfgS3Lib APIs (with assertion failures, see above) will be added later. Cc: Jordan Justen Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=394 Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek Reviewed-by: Jordan Justen --- .../QemuFwCfgS3Lib/BaseQemuFwCfgS3LibNull.inf | 39 +++++++++++++++++++ .../Library/QemuFwCfgS3Lib/QemuFwCfgS3Base.c | 39 +++++++++++++++++++ 2 files changed, 78 insertions(+) create mode 100644 OvmfPkg/Library/QemuFwCfgS3Lib/BaseQemuFwCfgS3LibNull.inf create mode 100644 OvmfPkg/Library/QemuFwCfgS3Lib/QemuFwCfgS3Base.c diff --git a/OvmfPkg/Library/QemuFwCfgS3Lib/BaseQemuFwCfgS3LibNull.inf b/OvmfPkg/Library/QemuFwCfgS3Lib/BaseQemuFwCfgS3LibNull.inf new file mode 100644 index 0000000000..ba24a0b9d4 --- /dev/null +++ b/OvmfPkg/Library/QemuFwCfgS3Lib/BaseQemuFwCfgS3LibNull.inf @@ -0,0 +1,39 @@ +## @file +# Base Null library instance of the QemuFwCfgS3Lib class. +# +# This library instance returns constant FALSE from QemuFwCfgS3Enabled(), and +# all other library functions trigger assertion failures. It is suitable for +# QEMU targets and machine types that never enable S3. +# +# 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 = BaseQemuFwCfgS3LibNull + FILE_GUID = EA7D2B69-D221-4950-9C2C-C38A65BCC96E + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = QemuFwCfgS3Lib + +# +# The following information is for reference only and not required by the build +# tools. +# +# VALID_ARCHITECTURES = IA32 X64 ARM AARCH64 IPF EBC +# + +[Sources] + QemuFwCfgS3Base.c + +[Packages] + MdePkg/MdePkg.dec + OvmfPkg/OvmfPkg.dec diff --git a/OvmfPkg/Library/QemuFwCfgS3Lib/QemuFwCfgS3Base.c b/OvmfPkg/Library/QemuFwCfgS3Lib/QemuFwCfgS3Base.c new file mode 100644 index 0000000000..bed9bf3dfb --- /dev/null +++ b/OvmfPkg/Library/QemuFwCfgS3Lib/QemuFwCfgS3Base.c @@ -0,0 +1,39 @@ +/** @file + Base Null library instance of the QemuFwCfgS3Lib class. + + This library instance returns constant FALSE from QemuFwCfgS3Enabled(), and + all other library functions trigger assertion failures. It is suitable for + QEMU targets and machine types that never enable S3. + + 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 + +/** + Determine if S3 support is explicitly enabled. + + @retval TRUE If S3 support is explicitly enabled. Other functions in this + library may be called (subject to their individual + restrictions). + + FALSE Otherwise. This includes unavailability of the firmware + configuration interface. No other function in this library + must be called. +**/ +BOOLEAN +EFIAPI +QemuFwCfgS3Enabled ( + VOID + ) +{ + return FALSE; +} -- 2.39.2