Example #1
0
/**
 * Initialise EFI environment
 *
 * @v image_handle	Image handle
 * @v systab		System table
 * @ret efirc		EFI return status code
 */
EFI_STATUS efi_init ( EFI_HANDLE image_handle,
		      EFI_SYSTEM_TABLE *systab ) {
	EFI_BOOT_SERVICES *bs;
	struct efi_protocol *prot;
	struct efi_config_table *tab;
	EFI_STATUS efirc;

	/* Store image handle and system table pointer for future use */
	efi_image_handle = image_handle;
	efi_systab = systab;

	/* Sanity checks */
	if ( ! systab )
		return EFI_NOT_AVAILABLE_YET;
	if ( ! systab->ConOut )
		return EFI_NOT_AVAILABLE_YET;
	if ( ! systab->BootServices ) {
		DBGC ( systab, "EFI provided no BootServices entry point\n" );
		return EFI_NOT_AVAILABLE_YET;
	}
	if ( ! systab->RuntimeServices ) {
		DBGC ( systab, "EFI provided no RuntimeServices entry "
		       "point\n" );
		return EFI_NOT_AVAILABLE_YET;
	}
	DBGC ( systab, "EFI handle %p systab %p\n", image_handle, systab );

	/* Look up used protocols */
	bs = systab->BootServices;
	for_each_table_entry ( prot, EFI_PROTOCOLS ) {
		if ( ( efirc = bs->LocateProtocol ( &prot->u.guid, NULL,
						    prot->protocol ) ) == 0 ) {
			DBGC ( systab, "EFI protocol %s is at %p\n",
			       uuid_ntoa ( &prot->u.uuid ), *(prot->protocol));
		} else {
			DBGC ( systab, "EFI does not provide protocol %s\n",
			       uuid_ntoa ( &prot->u.uuid ) );
			/* All protocols are required */
			return efirc;
		}
	}

	/* Look up used configuration tables */
	for_each_table_entry ( tab, EFI_CONFIG_TABLES ) {
		if ( ( *(tab->table) = efi_find_table ( &tab->u.guid ) ) ) {
			DBGC ( systab, "EFI configuration table %s is at %p\n",
			       uuid_ntoa ( &tab->u.uuid ), *(tab->table) );
		} else {
			DBGC ( systab, "EFI does not provide configuration "
			       "table %s\n", uuid_ntoa ( &tab->u.uuid ) );
			if ( tab->required )
				return EFI_NOT_AVAILABLE_YET;
		}
	}

	return 0;
}
Example #2
0
EFI_STATUS EFIAPI
OvrLocateProtocol(
	IN EFI_GUID			*Protocol,
	IN VOID				*Registration,
	OUT VOID			**Interface
)
{
	EFI_STATUS			Status;
	VOID				*InterfaceIn = *Interface;
	
	Status = gOrgBS.LocateProtocol(Protocol, Registration, Interface);
	PRINT("->LocateProtocol(%s, %p, %p/%p) = %r\n", GuidStr(Protocol), Registration, InterfaceIn, *Interface, Status);
	return Status;
}
Example #3
0
EFI_STATUS
EFIAPI
BootScriptSaveInitialize (
  IN EFI_HANDLE           ImageHandle,
  IN EFI_SYSTEM_TABLE     *SystemTable
  )
/*++

Routine Description:

  Intialize Boot Script Lib if it has not yet been initialized. 

Arguments:

  (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)

Returns: 

  EFI_STATUS always returns EFI_SUCCESS

--*/
// GC_TODO:    ImageHandle - add argument and description to function comment
// GC_TODO:    SystemTable - add argument and description to function comment
{
  EFI_STATUS        Status;
  EFI_BOOT_SERVICES *BS;

  BS      = SystemTable->BootServices;

  Status  = BS->LocateProtocol (&gEfiBootScriptSaveGuid, NULL, (VOID **)&mBootScriptSave);
  if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
    mBootScriptSave = NULL;
  }

  return EFI_SUCCESS;
}
Example #4
0
EFI_STATUS efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE* Xsystab)
{
	EFI_HANDLE handles[128];
	EFI_BLOCK_IO *blkio;
	UINTN i, nparts = sizeof(handles), cols, rows, max_dim, best_mode;
	EFI_STATUS status;
	EFI_DEVICE_PATH *devpath;
	EFI_BOOT_SERVICES *BS;
	EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL;
	SIMPLE_TEXT_OUTPUT_INTERFACE *conout = NULL;
	const char *path = _PATH_LOADER;

	systab = Xsystab;
	image = Ximage;

	BS = systab->BootServices;
	status = BS->LocateProtocol(&ConsoleControlGUID, NULL,
	    (VOID **)&ConsoleControl);
	if (status == EFI_SUCCESS)
		(void)ConsoleControl->SetMode(ConsoleControl,
		    EfiConsoleControlScreenText);
	/*
	 * Reset the console and find the best text mode.
	 */
	conout = systab->ConOut;
	conout->Reset(conout, TRUE);
	max_dim = best_mode = 0;
	for (i = 0; ; i++) {
		status = conout->QueryMode(conout, i, &cols, &rows);
		if (EFI_ERROR(status))
			break;
		if (cols * rows > max_dim) {
			max_dim = cols * rows;
			best_mode = i;
		}
	}
	if (max_dim > 0)
		conout->SetMode(conout, best_mode);
	conout->EnableCursor(conout, TRUE);
	conout->ClearScreen(conout);

	printf("\n"
	       ">> FreeBSD EFI boot block\n");
	printf("   Loader path: %s\n", path);

	status = systab->BootServices->LocateHandle(ByProtocol,
	    &BlockIoProtocolGUID, NULL, &nparts, handles);
	nparts /= sizeof(handles[0]);

	for (i = 0; i < nparts; i++) {
		status = systab->BootServices->HandleProtocol(handles[i],
		    &DevicePathGUID, (void **)&devpath);
		if (EFI_ERROR(status))
			continue;

		while (!IsDevicePathEnd(NextDevicePathNode(devpath)))
			devpath = NextDevicePathNode(devpath);

		status = systab->BootServices->HandleProtocol(handles[i],
		    &BlockIoProtocolGUID, (void **)&blkio);
		if (EFI_ERROR(status))
			continue;

		if (!blkio->Media->LogicalPartition)
			continue;

		if (domount(devpath, blkio, 1) >= 0)
			break;
	}

	if (i == nparts)
		panic("No bootable partition found");

	bootdevhandle = handles[i];
	load(path);

	panic("Load failed");

	return EFI_SUCCESS;
}
Example #5
0
/**
 * efi_main - The entry point for the EFI application
 * @image: firmware-allocated handle that identifies the image
 * @SystemTable: EFI system table
 */
EFI_STATUS
efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *systemTable)
{
	EFI_BOOT_SERVICES *bs = systemTable->BootServices;
	EFI_GRAPHICS_OUTPUT_PROTOCOL *graphicsProtocol;

	SIMPLE_TEXT_OUTPUT_INTERFACE *conOut = systemTable->ConOut;
	EFI_EVENT event = systemTable->ConIn->WaitForKey;
	UINTN index;

	int i, modeCount;

	EFI_STATUS status = bs->LocateProtocol(&GraphicsOutputProtocolGUID, NULL, 
		(void**)&graphicsProtocol);

	if (EFI_ERROR(status) || graphicsProtocol == NULL) {
		conOut->OutputString(conOut, L"Failed to init gfx!\r\n");
		return status;
	}

	//Switch to current mode so gfx is started.
	status = graphicsProtocol->SetMode(graphicsProtocol, graphicsProtocol->Mode->Mode);
	if (EFI_ERROR(status)) {
		conOut->OutputString(conOut, L"Failed to set default mode!\r\n");
		return status;
	}

	conOut->OutputString(conOut, L"Current mode: ");
	printInt(conOut, graphicsProtocol->Mode->Mode);
	conOut->OutputString(conOut, L"\r\n");

	modeCount = graphicsProtocol->Mode->MaxMode;
	for (i = 0; i < modeCount; i++) {
		conOut->OutputString(conOut, L"\r\n");
		printInt(conOut, i);
		conOut->OutputString(conOut, L": ");
		EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info;
		UINTN SizeOfInfo;
		status = graphicsProtocol->QueryMode(graphicsProtocol, i, &SizeOfInfo, &info);

		if (EFI_ERROR(status)) {
			conOut->OutputString(conOut, L" Failure to query mode: ");
			printInt(conOut, status);
			continue;
		}
		printInt(conOut, info->HorizontalResolution);
		conOut->OutputString(conOut, L" x ");
		printInt(conOut, info->VerticalResolution);

		switch(info->PixelFormat) {
			case PixelRedGreenBlueReserved8BitPerColor:
				conOut->OutputString(conOut, L" RGB(R)");
				break;
			case PixelBlueGreenRedReserved8BitPerColor:
				conOut->OutputString(conOut, L" BGR(R)");
				break;
			case PixelBitMask:
				conOut->OutputString(conOut, L" BitMask ");
				printInt(conOut, info->PixelInformation.RedMask);
				conOut->OutputString(conOut, L"R ");
				printInt(conOut, info->PixelInformation.GreenMask);
				conOut->OutputString(conOut, L"G ");
				printInt(conOut, info->PixelInformation.BlueMask);
				conOut->OutputString(conOut, L"B ");
				printInt(conOut, info->PixelInformation.ReservedMask);
				conOut->OutputString(conOut, L"Reserved ");
				break;
			case PixelBltOnly:
				conOut->OutputString(conOut, L" (blt only)");
				break;
			default:
				conOut->OutputString(conOut, L" (Invalid pixel format)");
				break;
		}
		conOut->OutputString(conOut, L" Pixel per scanline: ");
		printInt(conOut, info->PixelsPerScanLine);
	}

	bs->WaitForEvent(1, &event, &index);
	return EFI_SUCCESS;
}
Example #6
0
EFI_STATUS 
EFIAPI
PpmPolicyEntry(
  IN EFI_HANDLE ImageHandle,
  IN EFI_SYSTEM_TABLE *SystemTable
)
{
  EFI_BOOT_SERVICES        *pBS;
  EFI_MP_SERVICES_PROTOCOL *MpService;
  EFI_CPUID_REGISTER        Cpuid01 = { 0, 0, 0, 0};
  EFI_HANDLE                Handle;
  EFI_STATUS                Status;
  UINTN                     CpuCount;
  UINT8                     CPUMobileFeature;

  PCH_STEPPING              Stepping;

  pBS = SystemTable->BootServices;

  //
  // Set PPM policy structure to known value
  //
  pBS->SetMem (&mDxePlatformPpmPolicy, sizeof(PPM_PLATFORM_POLICY_PROTOCOL), 0);

  //
  // Find the MpService Protocol
  //
  Status = pBS->LocateProtocol (&gEfiMpServiceProtocolGuid,
                                NULL,
                                (void **)&MpService
                               );
  ASSERT_EFI_ERROR (Status);

  //
  // Get processor count from MP service.
  //
  Status = MpService->GetNumberOfProcessors (MpService, &CpuCount, NULL);
  ASSERT_EFI_ERROR (Status);

  //
  // Store the CPUID for use by SETUP items.
  //
  AsmCpuid (EFI_CPUID_VERSION_INFO, &Cpuid01.RegEax, &Cpuid01.RegEbx, &Cpuid01.RegEcx, &Cpuid01.RegEdx);

  mDxePlatformPpmPolicy.Revision                       = PPM_PLATFORM_POLICY_PROTOCOL_REVISION_4;

  //Read CPU Mobile feature from PLATFORM_ID_MSR MSR(0x17) NOTFB_I_AM_NOT_MOBILE_FUSE_CLIAMC00H Bit 28
  //Bit Description: { Disables Mobile features 0 = I am NOT a mobile part 1 = I am a mobile part (default)"}
  CPUMobileFeature = ((RShiftU64 (AsmReadMsr64(EFI_MSR_IA32_PLATFORM_ID), 28)) & 0x1);

  if (!EFI_ERROR(Status)) {
    if (CPUMobileFeature == 1){//CPU mobile feature
      mDxePlatformPpmPolicy.FunctionEnables.EnableGv       = ICH_DEVICE_ENABLE;
      mDxePlatformPpmPolicy.FunctionEnables.EnableCx       = ICH_DEVICE_ENABLE;
      mDxePlatformPpmPolicy.FunctionEnables.EnableCxe      = ICH_DEVICE_DISABLE;
      mDxePlatformPpmPolicy.FunctionEnables.EnableTm       = ICH_DEVICE_ENABLE;
      //MaxC7
      mDxePlatformPpmPolicy.FunctionEnables.EnableC7       = ICH_DEVICE_ENABLE;
      mDxePlatformPpmPolicy.FunctionEnables.EnableC6       = ICH_DEVICE_ENABLE;
      mDxePlatformPpmPolicy.FunctionEnables.EnableC4       = ICH_DEVICE_ENABLE;
       
      
    }else{//CPU desktop feature
       mDxePlatformPpmPolicy.FunctionEnables.EnableGv       = ICH_DEVICE_DISABLE;
       mDxePlatformPpmPolicy.FunctionEnables.EnableCx       = ICH_DEVICE_DISABLE;
       mDxePlatformPpmPolicy.FunctionEnables.EnableCxe      = ICH_DEVICE_DISABLE;
       mDxePlatformPpmPolicy.FunctionEnables.EnableTm       = ICH_DEVICE_DISABLE;
       mDxePlatformPpmPolicy.FunctionEnables.EnableC4       = ICH_DEVICE_DISABLE;
       mDxePlatformPpmPolicy.FunctionEnables.EnableC6       = ICH_DEVICE_DISABLE;
       mDxePlatformPpmPolicy.FunctionEnables.EnableC7       = ICH_DEVICE_DISABLE;
    }


    mDxePlatformPpmPolicy.FunctionEnables.EnableProcHot  = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.TStatesEnable  = ICH_DEVICE_ENABLE;

    
    Stepping = PchStepping();
    if (Stepping < PchB3) {
      // If SoC is B0~B2 Stepping, disable the Turbo
      mDxePlatformPpmPolicy.FunctionEnables.EnableTurboMode= ICH_DEVICE_DISABLE;
    } else {
      mDxePlatformPpmPolicy.FunctionEnables.EnableTurboMode= ICH_DEVICE_ENABLE;
    }
    
    mDxePlatformPpmPolicy.FunctionEnables.EnableTm      = ICH_DEVICE_ENABLE;

    mDxePlatformPpmPolicy.FunctionEnables.EnableCMP      = ICH_DEVICE_ENABLE;

  } else {
    mDxePlatformPpmPolicy.FunctionEnables.EnableGv       = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableCx       = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableCxe      = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableTm      = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableProcHot  = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableCMP       = ICH_DEVICE_DISABLE;
    mDxePlatformPpmPolicy.FunctionEnables.TStatesEnable  = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableTurboMode= ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableC4       = ICH_DEVICE_ENABLE;
    mDxePlatformPpmPolicy.FunctionEnables.EnableC6       = ICH_DEVICE_ENABLE;
  }



  mDxePlatformPpmPolicy.S3RestoreMsrSwSmiNumber                       = S3_RESTORE_MSR_SW_SMI;

  Handle = NULL;
  Status = pBS->InstallMultipleProtocolInterfaces (
                                                  &Handle,
                                                  &gPpmPlatformPolicyProtocolGuid,
                                                  &mDxePlatformPpmPolicy,
                                                  NULL
                                                  );

  ASSERT_EFI_ERROR (Status);

  return EFI_SUCCESS;
}