diff options
Diffstat (limited to 'MdePkg/Library/UefiPalLib/UefiPalLib.c')
| -rw-r--r-- | MdePkg/Library/UefiPalLib/UefiPalLib.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/MdePkg/Library/UefiPalLib/UefiPalLib.c b/MdePkg/Library/UefiPalLib/UefiPalLib.c deleted file mode 100644 index c4c465a90393..000000000000 --- a/MdePkg/Library/UefiPalLib/UefiPalLib.c +++ /dev/null @@ -1,127 +0,0 @@ -/** @file - PAL Library implementation retrieving the PAL Entry Point from the SAL System Table - register in the EFI System Confguration Table. - - Copyright (c) 2007 - 2008, 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 <PiDxe.h> - -#include <IndustryStandard/Sal.h> -#include <Library/UefiLib.h> -#include <Library/BaseLib.h> -#include <Library/DebugLib.h> - -#include <Guid/SalSystemTable.h> - -UINT64 mPalProcEntry; - -/** - Makes a PAL procedure call. - - This is a wrapper function to make a PAL procedure call. Based on the Index value, - this API will make static or stacked PAL call. Architected procedures may be designated - as required or optional. If a PAL procedure is specified as optional, a unique return - code of 0xFFFFFFFFFFFFFFFF is returned in the Status field of the PAL_CALL_RETURN structure. - This indicates that the procedure is not present in this PAL implementation. It is the - caller's responsibility to check for this return code after calling any optional PAL - procedure. No parameter checking is performed on the 4 input parameters, but there are - some common rules that the caller should follow when making a PAL call. Any address - passed to PAL as buffers for return parameters must be 8-byte aligned. Unaligned addresses - may cause undefined results. For those parameters defined as reserved or some fields - defined as reserved must be zero filled or the invalid argument return value may be - returned or undefined result may occur during the execution of the procedure. - This function is only available on IPF. - - @param Index The PAL procedure Index number. - @param Arg2 The 2nd parameter for PAL procedure calls. - @param Arg3 The 3rd parameter for PAL procedure calls. - @param Arg4 The 4th parameter for PAL procedure calls. - - @return Structure returned from the PAL Call procedure, including the status and return value. - -**/ -PAL_CALL_RETURN -EFIAPI -PalCall ( - IN UINT64 Index, - IN UINT64 Arg2, - IN UINT64 Arg3, - IN UINT64 Arg4 - ) -{ - // - // mPalProcEntry is initialized in library constructor as PAL entry. - // - return AsmPalCall ( - mPalProcEntry, - Index, - Arg2, - Arg3, - Arg4 - ); - -} - -/** - The constructor function of UEFI Pal Lib. - - The constructor function looks up the SAL System Table in the EFI System Configuration - Table. Once the SAL System Table is found, the PAL Entry Point in the SAL System Table - will be derived and stored into a global variable for library usage. - It will ASSERT() if the SAL System Table cannot be found or the data in the SAL System - Table is not the valid data. - - @param ImageHandle The firmware allocated handle for the EFI image. - @param SystemTable A pointer to the EFI System Table. - - @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS. - -**/ -EFI_STATUS -EFIAPI -UefiPalLibConstructor ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -{ - EFI_STATUS Status; - SAL_ST_ENTRY_POINT_DESCRIPTOR *SalStEntryDes; - SAL_SYSTEM_TABLE_HEADER *SalSystemTable; - - Status = EfiGetSystemConfigurationTable ( - &gEfiSalSystemTableGuid, - (VOID **) &SalSystemTable - ); - ASSERT_EFI_ERROR (Status); - ASSERT (SalSystemTable != NULL); - - // - // Check the first entry of SAL System Table, - // because the SAL entry is in ascending order with the entry type, - // the type 0 entry should be the first if exist. - // - SalStEntryDes = (SAL_ST_ENTRY_POINT_DESCRIPTOR *)(SalSystemTable + 1); - - // - // Assure the SAL ENTRY Type is 0 - // - ASSERT (SalStEntryDes->Type == EFI_SAL_ST_ENTRY_POINT); - - mPalProcEntry = SalStEntryDes->PalProcEntry; - // - // Make sure the PalCallAddress has the valid value - // - ASSERT (mPalProcEntry != 0); - - return EFI_SUCCESS; -} |