/**
* 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;
}
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;
}
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;
}
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;
}
/**
* 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;
}
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;
}