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