EFI_STATUS
EFIAPI
UefiMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
UINTN Argc;
CHAR16 **Argv;
BOOLEAN Quiet;
UINTN RangeStart;
UINTN RangeLength;
EFI_STATUS Status;
GET_OPT_CONTEXT GetOptContext;
RANGE_CHECK_CONTEXT RangeCheck;
Status = GetShellArgcArgv(ImageHandle, &Argc, &Argv);
if (Status != EFI_SUCCESS || Argc < 1) {
Print(L"This program requires Microsoft Windows.\n"
"Just kidding...only the UEFI Shell!\n");
return EFI_ABORTED;
}
Quiet = FALSE;
INIT_GET_OPT_CONTEXT(&GetOptContext);
while ((Status = GetOpt(Argc, Argv, NULL,
&GetOptContext)) == EFI_SUCCESS) {
switch (GetOptContext.Opt) {
case L'q':
Quiet = TRUE;
break;
default:
Print(L"Unknown option '%c'\n", GetOptContext.Opt);
return Usage(Argv[0]);
}
}
if (Argc - GetOptContext.OptIndex < 2) {
return Usage(Argv[0]);
}
RangeStart = StrHexToUintn(Argv[GetOptContext.OptIndex + 0]);
RangeLength = StrHexToUintn(Argv[GetOptContext.OptIndex + 1]);
if (RangeLength == 0 ||
(RangeStart + RangeLength) < RangeStart) {
Print(L"Invalid range passed\n");
return EFI_INVALID_PARAMETER;
}
Status = InitRangeCheckContext(TRUE, !Quiet, &RangeCheck);
if (EFI_ERROR(Status)) {
Print(L"Couldn't initialize range checking: %r\n", Status);
return Status;
}
Status = RangeIsMapped(&RangeCheck, RangeStart, RangeLength);
if (!Quiet) {
if (Status == EFI_SUCCESS) {
Print(L"0x%lx-0x%lx is in the memory map\n", RangeStart,
RangeLength - 1 + RangeStart);
} else if (Status != EFI_NOT_FOUND) {
Print(L"Error: %r\n", Status);
}
}
CleanRangeCheckContext(&RangeCheck);
return Status;
}
EFI_STATUS
efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab)
{
EFI_STATUS efi_status;
CHAR16 **argv;
INTN argc = 0;
#if DEBUG
INTN c = 0;
#endif
INTN err = 0;
INTN PgCnt = -1;
EFI_PHYSICAL_ADDRESS PhysAddr = 0;
InitializeLib(image, systab);
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"Now parse argc/argv\n");
#endif
argc = GetShellArgcArgv(image, &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;
}
