1 /** @file 2 Emulator Thunk to abstract OS services from pure EFI code 3 4 Copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR> 5 Copyright (c) 2011, Intel Corporation. All rights reserved.<BR> 6 7 This program and the accompanying materials 8 are licensed and made available under the terms and conditions of the BSD License 9 which accompanies this distribution. The full text of the license may be found at 10 http://opensource.org/licenses/bsd-license.php 11 12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 15 **/ 16 17 #include <PiPei.h> 18 #include <Library/BaseLib.h> 19 #include <Library/MemoryAllocationLib.h> 20 21 22 UINTN gThunkPpiListSize = 0; 23 EFI_PEI_PPI_DESCRIPTOR *gThunkPpiList = NULL; 24 25 26 27 EFI_PEI_PPI_DESCRIPTOR * 28 GetThunkPpiList ( 29 VOID 30 ) 31 { 32 UINTN Index; 33 34 if (gThunkPpiList == NULL) { 35 return NULL; 36 } 37 38 Index = (gThunkPpiListSize/sizeof (EFI_PEI_PPI_DESCRIPTOR)) - 1; 39 gThunkPpiList[Index].Flags |= EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST; 40 41 return gThunkPpiList; 42 } 43 44 45 EFI_STATUS 46 EFIAPI 47 AddThunkPpi ( 48 IN UINTN Flags, 49 IN EFI_GUID *Guid, 50 IN VOID *Ppi 51 ) 52 { 53 UINTN Index; 54 55 gThunkPpiList = ReallocatePool ( 56 gThunkPpiListSize, 57 gThunkPpiListSize + sizeof (EFI_PEI_PPI_DESCRIPTOR), 58 gThunkPpiList 59 ); 60 if (gThunkPpiList == NULL) { 61 return EFI_OUT_OF_RESOURCES; 62 } 63 64 Index = (gThunkPpiListSize/sizeof (EFI_PEI_PPI_DESCRIPTOR)); 65 gThunkPpiList[Index].Flags = Flags; 66 gThunkPpiList[Index].Guid = Guid; 67 gThunkPpiList[Index].Ppi = Ppi; 68 gThunkPpiListSize += sizeof (EFI_PEI_PPI_DESCRIPTOR); 69 70 return EFI_SUCCESS; 71 } 72 73 74 75 76 77
