diff options
| author | Guo Mang <mang.guo@intel.com> | 2016-12-22 15:57:14 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:41 +0800 |
| commit | 1760cf81e4b1847c6823ea3514a78dd120e19b6e (patch) | |
| tree | 64a874b14050fe24d3bbc1bc13cd293abf8ae018 /Core/MdePkg/Library/PeiServicesTablePointerLibKr7 | |
| parent | 7f05fa00f73038b425002566d3afe6c3ade2ccdb (diff) | |
| download | edk2-platforms-1760cf81e4b1847c6823ea3514a78dd120e19b6e.tar.xz | |
MdePkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/MdePkg/Library/PeiServicesTablePointerLibKr7')
3 files changed, 133 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c b/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c new file mode 100644 index 0000000000..66cf7bc471 --- /dev/null +++ b/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c @@ -0,0 +1,91 @@ +/** @file
+ PEI Services Table Pointer Library implementation for IPF that uses Kernel
+ Register 7 to store the pointer.
+
+ Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+ 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 <PiPei.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ Retrieves the cached value of the PEI Services Table pointer.
+
+ Returns the cached value of the PEI Services Table pointer in a CPU specific manner
+ as specified in the CPU binding section of the Platform Initialization Pre-EFI
+ Initialization Core Interface Specification.
+
+ If the cached PEI Services Table pointer is NULL, then ASSERT().
+
+ @return The pointer to PeiServices.
+
+**/
+CONST EFI_PEI_SERVICES **
+EFIAPI
+GetPeiServicesTablePointer (
+ VOID
+ )
+{
+ CONST EFI_PEI_SERVICES **PeiServices;
+
+ PeiServices = (CONST EFI_PEI_SERVICES **)(UINTN)AsmReadKr7 ();
+ ASSERT (PeiServices != NULL);
+ return PeiServices;
+}
+
+
+/**
+ Caches a pointer PEI Services Table.
+
+ Caches the pointer to the PEI Services Table specified by PeiServicesTablePointer
+ in a CPU specific manner as specified in the CPU binding section of the Platform Initialization
+ Pre-EFI Initialization Core Interface Specification.
+ The function set the pointer of PEI services in KR7 register
+ according to PI specification.
+
+ If PeiServicesTablePointer is NULL, then ASSERT().
+
+ @param PeiServicesTablePointer The address of PeiServices pointer.
+**/
+VOID
+EFIAPI
+SetPeiServicesTablePointer (
+ IN CONST EFI_PEI_SERVICES ** PeiServicesTablePointer
+ )
+{
+ ASSERT (PeiServicesTablePointer != NULL);
+ AsmWriteKr7 ((UINT64)(UINTN)PeiServicesTablePointer);
+}
+
+/**
+ Perform CPU specific actions required to migrate the PEI Services Table
+ pointer from temporary RAM to permanent RAM.
+
+ For IA32 CPUs, the PEI Services Table pointer is stored in the 4 bytes
+ immediately preceding the Interrupt Descriptor Table (IDT) in memory.
+ For X64 CPUs, the PEI Services Table pointer is stored in the 8 bytes
+ immediately preceding the Interrupt Descriptor Table (IDT) in memory.
+ For Itanium and ARM CPUs, a the PEI Services Table Pointer is stored in
+ a dedicated CPU register. This means that there is no memory storage
+ associated with storing the PEI Services Table pointer, so no additional
+ migration actions are required for Itanium or ARM CPUs.
+
+**/
+VOID
+EFIAPI
+MigratePeiServicesTablePointer (
+ VOID
+ )
+{
+ return;
+}
+
diff --git a/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.inf b/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.inf new file mode 100644 index 0000000000..ae38fc0046 --- /dev/null +++ b/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.inf @@ -0,0 +1,42 @@ +## @file
+# Instance of PEI Services Table Pointer Library using KR7 for the table pointer.
+#
+# PEI Services Table Pointer Library implementation that retrieves a pointer to the PEI
+# Services Table from KR7 on IPF.
+#
+# Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+#
+# 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 = 0x00010005
+ BASE_NAME = PeiServicesTablePointerLibKr7
+ MODULE_UNI_FILE = PeiServicesTablePointerLibKr7.uni
+ FILE_GUID = E0E7D776-E7EB-4e5f-9AA8-54CF3AA64A43
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PeiServicesTablePointerLib|SEC PEIM PEI_CORE
+
+
+#
+# VALID_ARCHITECTURES = IPF
+#
+
+[Sources.Ipf]
+ PeiServicesTablePointer.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ DebugLib
+ BaseLib
+
diff --git a/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.uni b/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.uni Binary files differnew file mode 100644 index 0000000000..5517f3ce0f --- /dev/null +++ b/Core/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.uni |