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| author | Michael D Kinney <michael.d.kinney@intel.com> | 2020-06-05 11:01:22 -0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-07-15 05:25:21 +0000 |
| commit | 9af8a299cec10656b757ae30a71c1310260d3c31 (patch) | |
| tree | 871f76e7221bf654c575c9f1c4f97ff18be7af4d /MdePkg/Library | |
| parent | 5b86bbf891677882a9d097f87cd0128562c12c43 (diff) | |
| download | edk2-9af8a299cec10656b757ae30a71c1310260d3c31.tar.gz | |
MdePkg/BaseCpuLibNull: Add Null version of CpuLib for host testing
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2798
The services in CpuLib usually generate exceptions in a unit test
host application. Provide a Null instance that can be safely used.
This Null instance can also be used as a template for implementing
new instances of CpuLib.
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Diffstat (limited to 'MdePkg/Library')
| -rw-r--r-- | MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c | 37 | ||||
| -rw-r--r-- | MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf | 26 | ||||
| -rw-r--r-- | MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.uni | 11 |
3 files changed, 74 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c new file mode 100644 index 0000000000..3ba7a35096 --- /dev/null +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c @@ -0,0 +1,37 @@ +/** @file
+ Null instance of CPU Library.
+
+ Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+/**
+ Places the CPU in a sleep state until an interrupt is received.
+
+ Places the CPU in a sleep state until an interrupt is received. If interrupts
+ are disabled prior to calling this function, then the CPU will be placed in a
+ sleep state indefinitely.
+
+**/
+VOID
+EFIAPI
+CpuSleep (
+ VOID
+ )
+{
+}
+
+/**
+ Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
+
+ Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
+
+**/
+VOID
+EFIAPI
+CpuFlushTlb (
+ VOID
+ )
+{
+}
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf new file mode 100644 index 0000000000..a9e8399038 --- /dev/null +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf @@ -0,0 +1,26 @@ +## @file
+# Null instance of CPU Library.
+#
+# Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = BaseCpuLibNull
+ MODULE_UNI_FILE = BaseCpuLibNull.uni
+ FILE_GUID = 8A29AAA5-0FB7-44CC-8709-1344FE89B878
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = CpuLib
+
+#
+# VALID_ARCHITECTURES = IA32 X64 EBC ARM AARCH64 RISCV64
+#
+
+[Sources]
+ BaseCpuLibNull.c
+
+[Packages]
+ MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.uni b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.uni new file mode 100644 index 0000000000..1030221d5c --- /dev/null +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.uni @@ -0,0 +1,11 @@ +// /** @file
+// Null instance of CPU Library.
+//
+// Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+#string STR_MODULE_ABSTRACT #language en-US "Null Instance of CPU Library"
+
+#string STR_MODULE_DESCRIPTION #language en-US "Null instance of CPU Library."
|