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204 lines
6.2 KiB
204 lines
6.2 KiB
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/* |
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* Copyright (C) 2013 Jerry Hoemann <jerry.hoemann@hp.com> |
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* |
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* |
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* Application to allocate memory at EFI. Syntax of command |
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* mimics the EFI Boot Service "AllocatePages." |
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* |
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* See UEFI spec 2.3, Section 6.2. |
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* |
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* |
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FS1:\> memmap |
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Type Start End #pages Attributes |
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BS_Code 0000000000000000-0000000000000FFF 0000000000000001 000000000000000F |
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Available 0000000000001000-000000000008DFFF 000000000000008D 000000000000000F |
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Reserved 000000000008E000-000000000008FFFF 0000000000000002 000000000000000F |
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Available 0000000000090000-000000000009FFFF 0000000000000010 000000000000000F |
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Available 0000000000100000-000000000FFFFFFF 000000000000FF00 000000000000000F |
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BS_Code 0000000010000000-0000000010061FFF 0000000000000062 000000000000000F |
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Available 0000000010062000-000000005CDFFFFF 000000000004CD9E 000000000000000F |
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ACPI_NVS 000000005CE00000-000000005DDFFFFF 0000000000001000 000000000000000F |
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BS_Data 000000005DE00000-000000005DFFFFFF 0000000000000200 000000000000000F |
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Available 000000005E000000-000000005EF1CFFF 0000000000000F1D 000000000000000F |
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BS_Data 000000005EF1D000-00000000709FBFFF 0000000000011ADF 000000000000000F |
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Available 00000000709FC000-00000000710E3FFF 00000000000006E8 000000000000000F |
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LoaderCode 00000000710E4000-00000000711FEFFF 000000000000011B 000000000000000F |
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Available 00000000711FF000-0000000071901FFF 0000000000000703 000000000000000F |
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BS_Code 0000000071902000-00000000721FEFFF 00000000000008FD 000000000000000F |
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Example to allocat 5 pages type BootCode at address 20000000 (hex) |
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FS1:\> AllocPages.efi 2 3 5 20000000 |
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AllocatePage: __AllocType__ __MemType__ __NumPages__ [__Addr__] |
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__AllocType__ {0,1,2} -- Any, MaxAddr, Addr |
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__MemType__ {0..13}, Reserved ==0, LCode==1, LData==2, BSCode==3, BSData==4, ... |
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__NumPages__ {0..F000000} |
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[__Addr__] 0... 3FFFFFFFFFFF |
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All numbers in hex no leading 0x |
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AllocatPage(2,3,5,20000000) |
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Example to allocat 5 pages type BootCode at address 30000000 (hex) |
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FS1:\> AllocPages.efi 2 3 5 30000000 |
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AllocatePage: __AllocType__ __MemType__ __NumPages__ [__Addr__] |
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__AllocType__ {0,1,2} -- Any, MaxAddr, Addr |
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__MemType__ {0..13}, Reserved ==0, LCode==1, LData==2, BSCode==3, BSData==4, ... |
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__NumPages__ {0..F000000} |
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[__Addr__] 0... 3FFFFFFFFFFF |
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All numbers in hex no leading 0x |
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FS1:\> memmap |
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Type Start End #pages Attributes |
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BS_Code 0000000000000000-0000000000000FFF 0000000000000001 000000000000000F |
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Available 0000000000001000-000000000008DFFF 000000000000008D 000000000000000F |
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Reserved 000000000008E000-000000000008FFFF 0000000000000002 000000000000000F |
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Available 0000000000090000-000000000009FFFF 0000000000000010 000000000000000F |
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Available 0000000000100000-000000000FFFFFFF 000000000000FF00 000000000000000F |
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BS_Code 0000000010000000-0000000010061FFF 0000000000000062 000000000000000F |
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Available 0000000010062000-000000001FFFFFFF 000000000000FF9E 000000000000000F |
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BS_Code 0000000020000000-0000000020004FFF 0000000000000005 000000000000000F |
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Available 0000000020005000-000000002FFFFFFF 000000000000FFFB 000000000000000F |
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BS_Code 0000000030000000-0000000030004FFF 0000000000000005 000000000000000F |
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Available 0000000030005000-000000005CDFFFFF 000000000002CDFB 000000000000000F |
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ACPI_NVS 000000005CE00000-000000005DDFFFFF 0000000000001000 000000000000000F |
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BS_Data 000000005DE00000-000000005DFFFFFF 0000000000000200 000000000000000F |
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Available 000000005E000000-000000005EF1CFFF 0000000000000F1D 000000000000000F |
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BS_Data 000000005EF1D000-00000000709FBFFF 0000000000011ADF 000000000000000F |
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Available 00000000709FC000-00000000710E3FFF 00000000000006E8 000000000000000F |
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LoaderCode 00000000710E4000-00000000711FEFFF 000000000000011B 000000000000000F |
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Available 00000000711FF000-0000000071901FFF 0000000000000703 000000000000000F |
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BS_Code 0000000071902000-00000000721FEFFF 00000000000008FD 000000000000000F |
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*/ |
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#include <efi.h> |
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#include <efilib.h> |
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#include <argify.h> |
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#define MAX_NUM_PAGES 0x000000000F000000 |
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#define MAX_ADDR ((1ULL << 46) - 1) |
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#ifdef DEBUG |
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#undef DEBUG |
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#endif |
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#define DEBUG 0 |
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EFI_STATUS |
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efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab) |
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{ |
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EFI_STATUS efi_status; |
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EFI_GUID LoadedImageProtocol = LOADED_IMAGE_PROTOCOL; |
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EFI_LOADED_IMAGE *info; |
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CHAR16 arglist[MAX_ARGS+1] = {0}; |
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CHAR16 *argv[MAX_ARGS]; |
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INTN argc = 0; |
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INTN err = 0; |
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INTN AllocType = -1; |
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INTN MemType = -1; |
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INTN NumPages = -1; |
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UINTN Addr = 0; |
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InitializeLib(image, systab); |
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efi_status = uefi_call_wrapper( BS->HandleProtocol, 3, image, |
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&LoadedImageProtocol, &info); |
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Print(L"AllocatePage: __AllocType__ __MemType__ __NumPages__ [__Addr__]\n"); |
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Print(L"__AllocType__ {0,1,2} -- Any, MaxAddr, Addr\n"); |
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Print(L"__MemType__ {0..13}, Reserved ==0, LCode==1, LData==2, BSCode==3, BSData==4, ...\n"); |
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Print(L"__NumPages__ {0..%x}\n", MAX_NUM_PAGES); |
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Print(L"[__Addr__] 0... %llx\n", MAX_ADDR); |
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Print(L"All numbers in hex no leading 0x\n"); |
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Print(L"\n"); |
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#if DEBUG |
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Print(L"%s\n", info->LoadOptions); |
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#endif |
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#if DEBUG |
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Print(L"Set up arglist\n"); |
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#endif |
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CopyMem(arglist, info->LoadOptions, info->LoadOptionsSize); |
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#if DEBUG |
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Print(L"arglist = <%s>\n", arglist); |
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#endif |
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#if DEBUG |
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Print(L"Now try argify\n"); |
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#endif |
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argc = argify(arglist, info->LoadOptionsSize, argv); |
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#if DEBUG |
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Print(L"argc = %d\n", argc); |
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#endif |
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#if DEBUG |
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for (c = 0; c < argc; c++ ) { |
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Print(L"argv[%d] = <%s>\n", c, argv[c]); |
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} |
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#endif |
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if ( (argc < 3) || (argc > 5) ) { |
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Print(L"Wrong argument count\n"); |
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return EFI_SUCCESS; |
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} |
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AllocType = xtoi(argv[1]); |
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MemType = xtoi(argv[2]); |
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NumPages = xtoi(argv[3]); |
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if ( argc == 5 ) Addr = xtoi(argv[4]); |
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if ( (AllocType < 0) || (AllocType > 2)) { |
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Print(L"Invalid AllocType\n"); |
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err++; |
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} |
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if ( (MemType < 0) || (MemType > 13) ) { |
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Print(L"Invalid MemType\n"); |
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err++; |
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} |
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if ( (NumPages < 0) || (NumPages > MAX_NUM_PAGES) ) { |
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Print(L"Inavlid NumPages\n"); |
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err++; |
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} |
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if ( Addr > MAX_ADDR ) { |
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Print(L"Inavlid Address\n"); |
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err++; |
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} |
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if ( err ) { |
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return EFI_INVALID_PARAMETER; |
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} |
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Print(L"AllocatPage(%d,%d,%d,%lx)\n", AllocType, MemType, NumPages, Addr); |
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efi_status = uefi_call_wrapper(BS->AllocatePages, 4, AllocType, MemType, NumPages, &Addr); |
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if ( EFI_ERROR(efi_status) ) { |
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Print(L"Allocate Pages Failed: %d\n", efi_status); |
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return efi_status; |
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} |
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return EFI_SUCCESS; |
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}
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