diff options
author | croxon <croxon@earth.local> | 2013-10-02 14:46:03 -0400 |
---|---|---|
committer | croxon <croxon@earth.local> | 2013-10-02 14:46:03 -0400 |
commit | e7a2d1299ba50b819daeee87c017e5c260294269 (patch) | |
tree | 7d8094d60229cf989a876499df9c4dff0e78cfcc | |
parent | 8f5ba0e4fd398d49c0004164d18e50fb6acd36ca (diff) | |
download | gnu-efi-3.0-e7a2d1299ba50b819daeee87c017e5c260294269.tar.gz gnu-efi-3.0-e7a2d1299ba50b819daeee87c017e5c260294269.tar.xz gnu-efi-3.0-e7a2d1299ba50b819daeee87c017e5c260294269.zip |
Added two simple applications to allocate/free memory at EFI.
Used to test/find memory fragmentation issues linux.
Signed-off-by: Jerry Hoemann <jerry.hoemann@hp.com>
Signed-off-by: Nigel Croxon <nigel.croxon@hp.com>
-rw-r--r-- | gnu-efi-3.0/apps/AllocPages.c | 252 | ||||
-rw-r--r-- | gnu-efi-3.0/apps/FreePages.c | 214 | ||||
-rw-r--r-- | gnu-efi-3.0/apps/Makefile | 3 |
3 files changed, 468 insertions, 1 deletions
diff --git a/gnu-efi-3.0/apps/AllocPages.c b/gnu-efi-3.0/apps/AllocPages.c new file mode 100644 index 0000000..34b8c5d --- /dev/null +++ b/gnu-efi-3.0/apps/AllocPages.c @@ -0,0 +1,252 @@ + +/* + * Copyright (C) 2013 Jerry Hoemann <jerry.hoemann@hp.com> + * + * + * 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> + + +#define MAX_NUM_PAGES 0x000000000F000000 +#define MAX_ADDR ((1ULL << 46) - 1) + +#define MAX_ARGS 256 + +#define CHAR_SPACE L' ' + +#define DEBUG 0 + +INTN +argify(CHAR16 *buf, UINTN len, CHAR16 **argv) +{ + + UINTN i=0, j=0; + CHAR16 *p = buf; + + if (buf == 0) { + argv[0] = NULL; + return 0; + } + /* len represents the number of bytes, not the number of 16 bytes chars */ + len = len >> 1; + + /* + * Here we use CHAR_NULL as the terminator rather than the length + * because it seems like the EFI shell return rather bogus values for it. + * Apparently, we are guaranteed to find the '\0' character in the buffer + * where the real input arguments stop, so we use it instead. + */ + for(;;) { + while (buf[i] == CHAR_SPACE && buf[i] != CHAR_NULL && i < len) i++; + + if (buf[i] == CHAR_NULL || i == len) goto end; + + p = buf+i; + i++; + + while (buf[i] != CHAR_SPACE && buf[i] != CHAR_NULL && i < len) i++; + + argv[j++] = p; + + if (buf[i] == CHAR_NULL) goto end; + + buf[i] = CHAR_NULL; + + if (i == len) goto end; + + i++; + + if (j == MAX_ARGS-1) { + Print(L"too many arguments (%d) truncating\n", j); + goto end; + } + } +end: + argv[j] = NULL; + return j; +} + + +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; +} diff --git a/gnu-efi-3.0/apps/FreePages.c b/gnu-efi-3.0/apps/FreePages.c new file mode 100644 index 0000000..840beda --- /dev/null +++ b/gnu-efi-3.0/apps/FreePages.c @@ -0,0 +1,214 @@ + + +/* + * Copyright (C) 2013 Jerry Hoemann <jerry.hoemann@hp.com> + * + * Application to allocate memory at EFI. Syntax of command + * mimics the EFI Boot Service "FreePages." + * + * See UEFI spec 2.3, Section 6.2. + * + +Example freeing a 5 page BS_Code setment at address: 0000000020000000 (hex) + + +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 0000000020005000-000000005DDFFFFF 000000000003DDFB 000000000000000F +BS_Data 000000005DE00000-000000005DFFFFFF 0000000000000200 000000000000000F +Available 000000005E000000-000000006DE7CFFF 000000000000FE7D 000000000000000F +ACPI_NVS 000000006DE7D000-000000006EE7CFFF 0000000000001000 000000000000000F +BS_Data 000000006EE7D000-00000000709FBFFF 0000000000001B7F 000000000000000F +Available 00000000709FC000-00000000710E3FFF 00000000000006E8 000000000000000F + + +FS1:\> FreePages 0000000020000000 5 +FreePages: __PhysAddr__ __PgCnt__ +__PhysAddr__ 0... 3FFFFFFFFFFF +__PgCnt__ [0..F000000] +All numbers hex w/ no leading 0x + +FreePages(20000000,5) + + + +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 0000000010062000-000000005DDFFFFF 000000000004DD9E 000000000000000F +BS_Data 000000005DE00000-000000005DFFFFFF 0000000000000200 000000000000000F +Available 000000005E000000-000000006DE7CFFF 000000000000FE7D 000000000000000F +ACPI_NVS 000000006DE7D000-000000006EE7CFFF 0000000000001000 000000000000000F +BS_Data 000000006EE7D000-00000000709FBFFF 0000000000001B7F 000000000000000F +Available 00000000709FC000-00000000710E3FFF 00000000000006E8 000000000000000F + + + */ + +#include <efi.h> +#include <efilib.h> + +/* + * FreePages: __PhysAddr__ __PgCnt__ + * + */ + +#define MAX_NUM_PAGES 0x000000000F000000 + +#define MAX_ADDR ((1ULL << 46) - 1) + +#define MAX_ARGS 256 + +#define CHAR_SPACE L' ' + +#define DEBUG 0 + +INTN +argify(CHAR16 *buf, UINTN len, CHAR16 **argv) +{ + + UINTN i=0, j=0; + CHAR16 *p = buf; + + if (buf == 0) { + argv[0] = NULL; + return 0; + } + /* len represents the number of bytes, not the number of 16 bytes chars */ + len = len >> 1; + + /* + * Here we use CHAR_NULL as the terminator rather than the length + * because it seems like the EFI shell return rather bogus values for it. + * Apparently, we are guaranteed to find the '\0' character in the buffer + * where the real input arguments stop, so we use it instead. + */ + for(;;) { + while (buf[i] == CHAR_SPACE && buf[i] != CHAR_NULL && i < len) i++; + + if (buf[i] == CHAR_NULL || i == len) goto end; + + p = buf+i; + i++; + + while (buf[i] != CHAR_SPACE && buf[i] != CHAR_NULL && i < len) i++; + + argv[j++] = p; + + if (buf[i] == CHAR_NULL) goto end; + + buf[i] = CHAR_NULL; + + if (i == len) goto end; + + i++; + + if (j == MAX_ARGS-1) { + Print(L"too many arguments (%d) truncating\n", j); + goto end; + } + } +end: + argv[j] = NULL; + return j; +} + + +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 PgCnt = -1; + UINTN PhysAddr = 0; + + InitializeLib(image, systab); + + efi_status = uefi_call_wrapper( BS->HandleProtocol, 3, image, + &LoadedImageProtocol, &info); + + + Print(L"FreePages: __PhysAddr__ __PgCnt__\n"); + Print(L"__PhysAddr__ 0... %llx\n", MAX_ADDR); + Print(L"__PgCnt__ [0..%lx]\n", MAX_NUM_PAGES); + Print(L"All numbers hex w/ 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) { + Print(L"Invalid argument count\n"); + return EFI_SUCCESS; + } + + PhysAddr = xtoi(argv[1]); + PgCnt = xtoi(argv[2]); + + if ( (PgCnt < 0) || (PgCnt > MAX_NUM_PAGES) ) { + Print(L"Inavlid PgCnt\n"); + err++; + } + if ( PhysAddr > MAX_ADDR ) { + Print(L"Inavlid Address\n"); + err++; + } + if ( err ) { + return EFI_SUCCESS; + } + + Print(L"FreePages(%lx,%d)\n", PhysAddr, PgCnt); + + efi_status = uefi_call_wrapper(BS->FreePages, 2, PhysAddr, PgCnt); + + if ( EFI_ERROR(efi_status) ) { + Print(L"Free Pages Failed: %d\n", efi_status); + return efi_status; + } + + return EFI_SUCCESS; +} diff --git a/gnu-efi-3.0/apps/Makefile b/gnu-efi-3.0/apps/Makefile index 8643ba1..5a91289 100644 --- a/gnu-efi-3.0/apps/Makefile +++ b/gnu-efi-3.0/apps/Makefile @@ -62,7 +62,8 @@ FORMAT = efi-app-$(ARCH) TARGET_APPS = t.efi t2.efi t3.efi t4.efi t5.efi t6.efi \ printenv.efi t7.efi tcc.efi modelist.efi \ - route80h.efi drv0_use.efi + route80h.efi drv0_use.efi AllocPages.efi \ + FreePages.efi TARGET_BSDRIVERS = drv0.efi TARGET_RTDRIVERS = |