/**
This function updates AML table checksum.
It will search the ACPI table installed by ACPI_TABLE protocol.
@param[in] Buffer A piece of AML code buffer pointer.
@retval EFI_SUCCESS The table holds the AML buffer is found, and checksum is updated.
@retval EFI_NOT_FOUND The table holds the AML buffer is not found.
**/
EFI_STATUS
SdtUpdateAmlChecksum (
IN VOID *Buffer
)
{
EFI_ACPI_TABLE_LIST *CurrentTableList;
CurrentTableList = FindTableByBuffer (Buffer);
if (CurrentTableList == NULL) {
return EFI_NOT_FOUND;
}
AcpiPlatformChecksum (
(VOID *)CurrentTableList->Table,
CurrentTableList->Table->Length,
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER, Checksum)
);
return EFI_SUCCESS;
}
/**
Entrypoint of Acpi Platform driver.
@param ImageHandle
@param SystemTable
@return EFI_SUCCESS
@return EFI_LOAD_ERROR
@return EFI_OUT_OF_RESOURCES
**/
EFI_STATUS
EFIAPI
AcpiPlatformEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_ACPI_TABLE_PROTOCOL *AcpiTable;
#ifdef VBOX
VOID *VBoxTables[10];
#else
EFI_FIRMWARE_VOLUME2_PROTOCOL *FwVol;
#endif
INTN Instance;
EFI_ACPI_COMMON_HEADER *CurrentTable;
UINTN TableHandle;
#ifndef VBOX
UINT32 FvStatus;
#endif
UINTN TableSize;
UINTN Size;
Instance = 0;
CurrentTable = NULL;
TableHandle = 0;
//
// Find the AcpiTable protocol
//
Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID**)&AcpiTable);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
#ifdef VBOX
//
// VBOX already has tables prepared in memory - just reuse them.
//
FillSysTablesInfo(VBoxTables, sizeof(VBoxTables)/sizeof(VBoxTables[0]));
#else
//
//
// Locate the firmware volume protocol
//
Status = LocateFvInstanceWithTables (&FwVol);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
#endif
//
// Read tables from the storage file.
//
while (Status == EFI_SUCCESS) {
#ifdef VBOX
CurrentTable = (EFI_ACPI_COMMON_HEADER *)VBoxTables[Instance];
Status = (CurrentTable == NULL) ? EFI_NOT_FOUND : EFI_SUCCESS;
if (CurrentTable) {
Size = CurrentTable->Length;
DEBUG((EFI_D_ERROR, "adding %p %d\n", CurrentTable, Size));
} else
Size = 0; // Just to shut up the compiler.
#else
Status = FwVol->ReadSection (
FwVol,
(EFI_GUID*)PcdGetPtr (PcdAcpiTableStorageFile),
EFI_SECTION_RAW,
Instance,
(VOID**) &CurrentTable,
&Size,
&FvStatus
);
#endif
if (!EFI_ERROR(Status)) {
//
// Add the table
//
TableHandle = 0;
TableSize = ((EFI_ACPI_DESCRIPTION_HEADER *) CurrentTable)->Length;
#ifdef VBOX
DEBUG((DEBUG_INFO, "Size:%d, TableSize:%d\n", Size, TableSize));
#endif
ASSERT (Size >= TableSize);
//
// Checksum ACPI table
//
AcpiPlatformChecksum ((UINT8*)CurrentTable, TableSize);
//
// Install ACPI table
//
Status = AcpiTable->InstallAcpiTable (
AcpiTable,
CurrentTable,
TableSize,
&TableHandle
);
#ifndef VBOX /* In case we're reading ACPI tables from memory we haven't
allocated this memory, so it isn't required to free it */
//
// Free memory allocated by ReadSection
//
gBS->FreePool (CurrentTable);
if (EFI_ERROR(Status)) {
return EFI_ABORTED;
}
#endif
//
// Increment the instance
//
Instance++;
CurrentTable = NULL;
}
}
return EFI_SUCCESS;
}
/**
Entrypoint of Acpi Platform driver.
@param ImageHandle
@param SystemTable
@return EFI_SUCCESS
@return EFI_LOAD_ERROR
@return EFI_OUT_OF_RESOURCES
**/
EFI_STATUS
EFIAPI
AcpiPlatformEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_ACPI_TABLE_PROTOCOL *AcpiTable;
EFI_FIRMWARE_VOLUME2_PROTOCOL *FwVol;
INTN Instance;
EFI_ACPI_COMMON_HEADER *CurrentTable;
UINTN TableHandle;
UINT32 FvStatus;
UINTN TableSize;
UINTN Size;
Instance = 0;
CurrentTable = NULL;
TableHandle = 0;
//
// Find the AcpiTable protocol
//
Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID**)&AcpiTable);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
//
// Locate the firmware volume protocol
//
Status = LocateFvInstanceWithTables (&FwVol);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
//
// Read tables from the storage file.
//
while (Status == EFI_SUCCESS) {
Status = FwVol->ReadSection (
FwVol,
(EFI_GUID*)PcdGetPtr (PcdAcpiTableStorageFile),
EFI_SECTION_RAW,
Instance,
(VOID**) &CurrentTable,
&Size,
&FvStatus
);
if (!EFI_ERROR(Status)) {
//
// Add the table
//
TableHandle = 0;
TableSize = ((EFI_ACPI_DESCRIPTION_HEADER *) CurrentTable)->Length;
ASSERT (Size >= TableSize);
//
// Checksum ACPI table
//
AcpiPlatformChecksum ((UINT8*)CurrentTable, TableSize);
//
// Install ACPI table
//
Status = AcpiTable->InstallAcpiTable (
AcpiTable,
CurrentTable,
TableSize,
&TableHandle
);
//
// Free memory allocated by ReadSection
//
gBS->FreePool (CurrentTable);
if (EFI_ERROR(Status)) {
return EFI_ABORTED;
}
//
// Increment the instance
//
Instance++;
CurrentTable = NULL;
}
}
//
// The driver does not require to be kept loaded.
//
return EFI_REQUEST_UNLOAD_IMAGE;
}
/**
Entrypoint of Acpi Platform driver.
@param ImageHandle
@param SystemTable
@return EFI_SUCCESS
@return EFI_LOAD_ERROR
@return EFI_OUT_OF_RESOURCES
**/
EFI_STATUS
EFIAPI
AcpiPlatformEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_ACPI_TABLE_PROTOCOL *AcpiTable;
// INTN Instance;
// EFI_ACPI_COMMON_HEADER *CurrentTable;
EFI_ACPI_COMMON_HEADER *oldDSDT;
UINTN TableHandle;
UINTN TableSize;
// UINTN Size;
#if READTABLES
UINTN Index;
CHAR16* FileName;
#if LIP
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
#endif
VOID *FileBuffer;
// VOID** TmpHandler;
UINT64 FileSize;
UINTN BufferSize;
// UINTN Key;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;
EFI_FILE_INFO *Info;
EFI_FILE_HANDLE Root = NULL;
EFI_FILE_HANDLE ThisFile = NULL;
#endif
EFI_PHYSICAL_ADDRESS *Acpi20;
EFI_PEI_HOB_POINTERS GuidHob;
EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;
// EFI_ACPI_DESCRIPTION_HEADER *Rsdt, *Xsdt;
// EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt;
EFI_ACPI_DESCRIPTION_HEADER *Table;
SIGNAT Signature;
// EFI_ACPI_TABLE_INSTANCE *AcpiInstance;
Msg = NULL;
Status = gBS->LocateProtocol(&gMsgLogProtocolGuid, NULL, (VOID **) &Msg);
if (!EFI_ERROR(Status) && (Msg != NULL)) {
msgCursor = Msg->Cursor;
BootLog("MsgLog Protocol installed in AcpiPlatform\n");
}
//
// Find the AcpiTable protocol
//
Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID**)&AcpiTable);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
#if DEBUG_ACPI
AcpiInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS(AcpiTable);
DBG(L"Rsdp1 %x\n", AcpiInstance->Rsdp1);
DBG(L"Rsdp3 %x\n", AcpiInstance->Rsdp3);
DBG(L"Rsdt1 %x\n", AcpiInstance->Rsdt1);
DBG(L"Rsdt3 %x\n", AcpiInstance->Rsdt3);
DBG(L"Xsdt %x\n", AcpiInstance->Xsdt);
DBG(L"Fadt1 %x\n", AcpiInstance->Fadt1);
DBG(L"Fadt3 %x\n", AcpiInstance->Fadt3);
#endif
// Instance = 0;
// CurrentTable = NULL;
TableHandle = 0;
GuidHob.Raw = GetFirstGuidHob (&gEfiAcpiTableGuid);
if (GuidHob.Raw == NULL) {
GuidHob.Raw = GetFirstGuidHob (&gEfiAcpi10TableGuid);
if (GuidHob.Raw == NULL) {
return EFI_ABORTED;
}
//Slice: TODO if we found only Acpi1.0 we need to convert it to Acpi2.0
// like I did in Chameleon
}
Acpi20 = GET_GUID_HOB_DATA (GuidHob.Guid);
if (Acpi20 == NULL) {
return EFI_ABORTED;
}
Rsdp = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *)(UINTN)*Acpi20;
DBG(L"Rsdp @ %x\n", (UINTN)Rsdp);
DBG(L"Rsdt @ %x\n", (UINTN)(Rsdp->RsdtAddress));
DBG(L"Xsdt @ %x\n", (UINTN)(Rsdp->XsdtAddress));
InstallLegacyTables(AcpiTable, Rsdp);
// DBG(L"LegacyTables installed\n");
oldDSDT = (EFI_ACPI_COMMON_HEADER*)(UINTN)Fadt->Dsdt;
DBG(L"Fadt @ %x\n", (UINTN)Fadt);
DBG(L"oldDSDT @ %x\n", (UINTN)oldDSDT);
#if READTABLES
#if LIP
// Looking for a volume from what we boot
/* TODO - look for a volume we want to boot System
it is possible if we fix in BdsBoot.c
gRT->SetVariable (
L"BootCurrent",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof (UINT16),
&Option->BootCurrent
);
gRT->GetVariable (
L"BootNext",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
0,
&BootNext
);
and extract DevicePath from BootNext - first available :(
In Gui.efi we can repeat this patch with DSDT.aml loaded from another place
*/
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID*)&LoadedImage
);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
Status = gBS->HandleProtocol (
LoadedImage->DeviceHandle,
&gEfiSimpleFileSystemProtocolGuid,
(VOID *) &Volume
);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
// DBG(L"Volume found\n");
//
// Open the root directory of the volume
//
if (!EFI_ERROR (Status)) {
Status = Volume->OpenVolume (Volume, &Root);
}
#else //Multiple FS protocols
EFI_HANDLE *mFs = NULL;
UINTN mFsCount = 0;
// mFsInfo[] array entries must match mFs[] handles
EFI_FILE_SYSTEM_INFO **mFsInfo = NULL;
gBS->LocateHandleBuffer (ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &mFsCount, &mFs);
mFsInfo = AllocateZeroPool (mFsCount * sizeof (EFI_FILE_SYSTEM_INFO *));
if (mFsInfo == NULL) {
// If we can't do this then we can't support file system entries
mFsCount = 0;
} else {
// Loop through all the file system structures and cache the file system info data
for (Index =0; Index < mFsCount; Index++) {
Status = gBS->HandleProtocol (mFs[Index], &gEfiSimpleFileSystemProtocolGuid, (VOID **)&Volume);
if (!EFI_ERROR (Status)) {
Status = Volume->OpenVolume (Volume, &Root);
if (!EFI_ERROR (Status)) {
// Get information about the volume
/* Size = 0;
Status = Root->GetInfo (Root, &gEfiFileSystemInfoGuid, &Size, mFsInfo[Index]);
if (Status == EFI_BUFFER_TOO_SMALL) {
mFsInfo[Index] = AllocatePool (Size);
Status = Root->GetInfo (Root, &gEfiFileSystemInfoGuid, &Size, mFsInfo[Index]);
}
*/
// Root->Close (Root);
break; //I will stop at first volume
//TODO try to find DSDT in all volumes
}
}
}
}
#endif
FileName = AllocateZeroPool(32); //Should be enough
//
// Read tables from the first volume.
//
for (Index=0; Index<NUM_TABLES; Index++) {
StrCpyS(FileName, 32, ACPInames[Index]);
// DBG(L"File probe %s\n", FileName);
Status = Root->Open (Root, &ThisFile, FileName, EFI_FILE_MODE_READ, 0);
if (EFI_ERROR (Status)) {
continue;
}
/* Get right size we need to allocate */
Status = ThisFile->GetInfo (
ThisFile,
&gEfiFileInfoGuid,
&BufferSize,
Info
);
if (EFI_ERROR(Status) && Status != EFI_BUFFER_TOO_SMALL) {
continue;
}
DBG(L"Buffer size %d\n", BufferSize);
// DBG(L"GetInfo success!\n");
Status = gBS->AllocatePool (EfiBootServicesData, BufferSize, (VOID **) &Info);
if (EFI_ERROR (Status)) {
// DBG(L"No pool!\n");
continue;
}
Status = ThisFile->GetInfo (
ThisFile,
&gEfiFileInfoGuid,
&BufferSize,
Info
);
FileSize = Info->FileSize;
// DBG(L"FileSize = %d!\n", FileSize);
gBS->FreePool (Info);
//Slice - this is the problem.
// FileBuffer = AllocatePool(FileSize);
Status = gBS->AllocatePool (EfiBootServicesData, FileSize, (VOID **) &FileBuffer);
if (EFI_ERROR (Status)) {
// DBG(L"No pool for FileBuffer size %d!\n", FileSize);
continue;
}
/* Status = gBS->AllocatePages (
AllocateMaxAddress,
EfiACPIMemoryNVS,
EFI_SIZE_TO_PAGES(FileSize),
FileBuffer
);
if (EFI_ERROR (Status)) {
// DBG(L"No pool for FileBuffer size %d!\n", FileSize);
continue;
}
*/
//should use ACPI memory
// Status=gBS->AllocatePages(AllocateMaxAddress,
// EfiACPIReclaimMemory,RoundPage(FileSize)/EFI_PAGE_SIZE, FileBuffer);
DBG(L"FileBuffer @ %x\n", (UINTN)FileBuffer);
Status = ThisFile->Read (ThisFile, &FileSize, FileBuffer); //(VOID**)&
// DBG(L"FileRead status=%x\n", Status);
if (!EFI_ERROR(Status)) {
//
// Add the table
//
// TableHandle = 0;
if (ThisFile != NULL) {
ThisFile->Close (ThisFile); //close file before use buffer?! Flush?!
}
// DBG(L"FileRead success: %c%c%c%c\n",
// ((CHAR8*)FileBuffer)[0], ((CHAR8*)FileBuffer)[1], ((CHAR8*)FileBuffer)[2], ((CHAR8*)FileBuffer)[3]);
TableSize = ((EFI_ACPI_DESCRIPTION_HEADER *) FileBuffer)->Length;
//ASSERT (BufferSize >= TableSize);
DBG(L"Table size=%d\n", TableSize);
if (FileSize < TableSize) {
//Data incorrect. What TODO? Quick fix
// ((EFI_ACPI_DESCRIPTION_HEADER *) FileBuffer)->Length = FileSize;
// TableSize = FileSize;
DBG(L"Table size > file size :(\n");
continue; //do nothing with broken table
}
//
// Checksum ACPI table
//
AcpiPlatformChecksum ((UINT8*)FileBuffer, TableSize);
if ((Index==0) && oldDSDT) { //DSDT always at index 0
if (((EFI_ACPI_DESCRIPTION_HEADER *) oldDSDT)->Length > TableSize) {
CopyMem(oldDSDT, FileBuffer, TableSize);
DBG(L"New DSDT copied to old place\n");
}
}
//
// Install ACPI table
//
//TmpHandler = &FileBuffer;
Status = AcpiTable->InstallAcpiTable (
AcpiTable,
FileBuffer,
TableSize,
&TableHandle
);
DBG(L"Table install status=%x\n", Status);
if (EFI_ERROR(Status)) {
continue;
}
// DBG(L"Table installed #%d\n", Index);
//
// Increment the instance
//
// Instance++; //for a what?
FileBuffer = NULL;
} else if (oldDSDT && (Index==0)) {
//if new DSDT not found then install legacy one
Table = (EFI_ACPI_DESCRIPTION_HEADER*)((UINTN)(Fadt->Dsdt));
TableSize = Table->Length;
Signature.Sign = Table->Signature;
DBG(L"Install legacy table: %c%c%c%c\n",
Signature.ASign[0], Signature.ASign[1], Signature.ASign[2], Signature.ASign[3]);
Status = AcpiTable->InstallAcpiTable (
AcpiTable,
Table,
TableSize,
&TableHandle
);
}
}
if (Root != NULL) {
Root->Close (Root);
}
#else
//just install legacy tables
if (oldDSDT) {
//if new DSDT not found then install legacy one
Table = (EFI_ACPI_DESCRIPTION_HEADER*)((UINTN)(Fadt->Dsdt));
TableSize = Table->Length;
Signature.Sign = Table->Signature;
DBG(L"Install legacy table: %c%c%c%c\n",
Signature.ASign[0], Signature.ASign[1], Signature.ASign[2], Signature.ASign[3]);
/*Status = */AcpiTable->InstallAcpiTable (
AcpiTable,
Table,
TableSize,
&TableHandle
);
}
#endif
#if DEBUG_ACPI==2
gBS->Stall(5000000);
#endif
return EFI_SUCCESS;
}