mirror of https://github.com/acidanthera/audk.git
554 lines
13 KiB
C
554 lines
13 KiB
C
/**@file
|
|
|
|
Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
Module Name:
|
|
|
|
Cpu.c
|
|
|
|
Abstract:
|
|
|
|
NT Emulation Architectural Protocol Driver as defined in Tiano.
|
|
This CPU module abstracts the interrupt subsystem of a platform and
|
|
the CPU-specific setjump/long pair. Other services are not implemented
|
|
in this driver.
|
|
|
|
**/
|
|
|
|
|
|
#include "CpuDriver.h"
|
|
|
|
UINT64 mTimerPeriod;
|
|
|
|
CPU_ARCH_PROTOCOL_PRIVATE mCpuTemplate = {
|
|
CPU_ARCH_PROT_PRIVATE_SIGNATURE,
|
|
NULL,
|
|
{
|
|
WinNtFlushCpuDataCache,
|
|
WinNtEnableInterrupt,
|
|
WinNtDisableInterrupt,
|
|
WinNtGetInterruptState,
|
|
WinNtInit,
|
|
WinNtRegisterInterruptHandler,
|
|
WinNtGetTimerValue,
|
|
WinNtSetMemoryAttributes,
|
|
1,
|
|
4
|
|
},
|
|
{
|
|
CpuMemoryServiceRead,
|
|
CpuMemoryServiceWrite,
|
|
CpuIoServiceRead,
|
|
CpuIoServiceWrite
|
|
},
|
|
0,
|
|
TRUE
|
|
};
|
|
|
|
#define EFI_CPU_DATA_MAXIMUM_LENGTH 0x100
|
|
|
|
|
|
|
|
//
|
|
// Service routines for the driver
|
|
//
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtFlushCpuDataCache (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This,
|
|
IN EFI_PHYSICAL_ADDRESS Start,
|
|
IN UINT64 Length,
|
|
IN EFI_CPU_FLUSH_TYPE FlushType
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine would provide support for flushing the CPU data cache.
|
|
In the case of NT emulation environment, this flushing is not necessary and
|
|
is thus not implemented.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
Start adddress in memory to flush
|
|
Length of memory to flush
|
|
Flush type
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_SUCCESS
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
// TODO: FlushType - add argument and description to function comment
|
|
// TODO: EFI_UNSUPPORTED - add return value to function comment
|
|
{
|
|
if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {
|
|
//
|
|
// Only WB flush is supported. We actually need do nothing on NT emulator
|
|
// environment. Classify this to follow EFI spec
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|
|
//
|
|
// Other flush types are not supported by NT emulator
|
|
//
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtEnableInterrupt (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine provides support for emulation of the interrupt enable of the
|
|
the system. For our purposes, CPU enable is just a BOOLEAN that the Timer
|
|
Architectural Protocol observes in order to defer behaviour while in its
|
|
emulated interrupt, or timer tick.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_SUCCESS
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
{
|
|
CPU_ARCH_PROTOCOL_PRIVATE *Private;
|
|
|
|
Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
|
|
Private->InterruptState = TRUE;
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtDisableInterrupt (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine provides support for emulation of the interrupt disable of the
|
|
the system. For our purposes, CPU enable is just a BOOLEAN that the Timer
|
|
Architectural Protocol observes in order to defer behaviour while in its
|
|
emulated interrupt, or timer tick.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_SUCCESS
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
{
|
|
CPU_ARCH_PROTOCOL_PRIVATE *Private;
|
|
|
|
Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
|
|
Private->InterruptState = FALSE;
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtGetInterruptState (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This,
|
|
OUT BOOLEAN *State
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine provides support for emulation of the interrupt disable of the
|
|
the system. For our purposes, CPU enable is just a BOOLEAN that the Timer
|
|
Architectural Protocol observes in order to defer behaviour while in its
|
|
emulated interrupt, or timer tick.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_SUCCESS
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
// TODO: State - add argument and description to function comment
|
|
// TODO: EFI_INVALID_PARAMETER - add return value to function comment
|
|
{
|
|
CPU_ARCH_PROTOCOL_PRIVATE *Private;
|
|
|
|
if (State == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
|
|
*State = Private->InterruptState;
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtInit (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This,
|
|
IN EFI_CPU_INIT_TYPE InitType
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine would support generation of a CPU INIT. At
|
|
present, this code does not provide emulation.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
INIT Type
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_UNSUPPORTED - not yet implemented
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
// TODO: InitType - add argument and description to function comment
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtRegisterInterruptHandler (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This,
|
|
IN EFI_EXCEPTION_TYPE InterruptType,
|
|
IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine would support registration of an interrupt handler. At
|
|
present, this code does not provide emulation.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
Pointer to interrupt handlers
|
|
Interrupt type
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_UNSUPPORTED - not yet implemented
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
// TODO: InterruptType - add argument and description to function comment
|
|
// TODO: InterruptHandler - add argument and description to function comment
|
|
{
|
|
|
|
//
|
|
// Do parameter checking for EFI spec conformance
|
|
//
|
|
if (InterruptType < 0 || InterruptType > 0xff) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
//
|
|
// Do nothing for Nt32 emulation
|
|
//
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtGetTimerValue (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This,
|
|
IN UINT32 TimerIndex,
|
|
OUT UINT64 *TimerValue,
|
|
OUT UINT64 *TimerPeriod OPTIONAL
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine would support querying of an on-CPU timer. At present,
|
|
this code does not provide timer emulation.
|
|
|
|
Arguments:
|
|
|
|
This - Pointer to CPU Architectural Protocol interface
|
|
TimerIndex - Index of given CPU timer
|
|
TimerValue - Output of the timer
|
|
TimerPeriod - Output of the timer period
|
|
|
|
Returns:
|
|
|
|
EFI_UNSUPPORTED - not yet implemented
|
|
EFI_INVALID_PARAMETER - TimeValue is NULL
|
|
|
|
--*/
|
|
{
|
|
if (TimerValue == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (TimerIndex != 0) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
gWinNt->QueryPerformanceCounter ((LARGE_INTEGER *)TimerValue);
|
|
|
|
if (TimerPeriod != NULL) {
|
|
*TimerPeriod = mTimerPeriod;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
WinNtSetMemoryAttributes (
|
|
IN EFI_CPU_ARCH_PROTOCOL *This,
|
|
IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
|
IN UINT64 Length,
|
|
IN UINT64 Attributes
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine would support querying of an on-CPU timer. At present,
|
|
this code does not provide timer emulation.
|
|
|
|
Arguments:
|
|
|
|
Pointer to CPU Architectural Protocol interface
|
|
Start address of memory region
|
|
The size in bytes of the memory region
|
|
The bit mask of attributes to set for the memory region
|
|
|
|
Returns:
|
|
|
|
Status
|
|
EFI_UNSUPPORTED - not yet implemented
|
|
|
|
--*/
|
|
// TODO: This - add argument and description to function comment
|
|
// TODO: BaseAddress - add argument and description to function comment
|
|
// TODO: Length - add argument and description to function comment
|
|
// TODO: Attributes - add argument and description to function comment
|
|
// TODO: EFI_INVALID_PARAMETER - add return value to function comment
|
|
{
|
|
//
|
|
// Check for invalid parameter for Spec conformance
|
|
//
|
|
if (Length == 0) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Do nothing for Nt32 emulation
|
|
//
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Logs SMBIOS record.
|
|
|
|
@param Smbios Pointer to SMBIOS protocol instance.
|
|
@param Buffer Pointer to the data buffer.
|
|
|
|
**/
|
|
VOID
|
|
LogSmbiosData (
|
|
IN EFI_SMBIOS_PROTOCOL *Smbios,
|
|
IN UINT8 *Buffer
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_SMBIOS_HANDLE SmbiosHandle;
|
|
|
|
SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
|
|
Status = Smbios->Add (
|
|
Smbios,
|
|
NULL,
|
|
&SmbiosHandle,
|
|
(EFI_SMBIOS_TABLE_HEADER*)Buffer
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
}
|
|
|
|
|
|
VOID
|
|
CpuUpdateSmbios (
|
|
VOID
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
This function will log processor version and frequency data to Smbios.
|
|
|
|
Arguments:
|
|
Event - Event whose notification function is being invoked.
|
|
Context - Pointer to the notification function's context.
|
|
|
|
Returns:
|
|
None.
|
|
|
|
--*/
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT32 TotalSize;
|
|
EFI_SMBIOS_PROTOCOL *Smbios;
|
|
EFI_HII_HANDLE HiiHandle;
|
|
STRING_REF Token;
|
|
UINTN CpuVerStrLen;
|
|
EFI_STRING CpuVerStr;
|
|
SMBIOS_TABLE_TYPE4 *SmbiosRecord;
|
|
CHAR8 *OptionalStrStart;
|
|
|
|
//
|
|
// Locate Smbios protocol.
|
|
//
|
|
Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **)&Smbios);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Initialize strings to HII database
|
|
//
|
|
HiiHandle = HiiAddPackages (
|
|
&gEfiCallerIdGuid,
|
|
NULL,
|
|
CpuStrings,
|
|
NULL
|
|
);
|
|
ASSERT (HiiHandle != NULL);
|
|
|
|
Token = STRING_TOKEN (STR_PROCESSOR_VERSION);
|
|
CpuVerStr = HiiGetPackageString(&gEfiCallerIdGuid, Token, NULL);
|
|
CpuVerStrLen = StrLen(CpuVerStr);
|
|
ASSERT (CpuVerStrLen <= SMBIOS_STRING_MAX_LENGTH);
|
|
|
|
|
|
TotalSize = (UINT32)(sizeof(SMBIOS_TABLE_TYPE4) + CpuVerStrLen + 1 + 1);
|
|
SmbiosRecord = AllocatePool(TotalSize);
|
|
ZeroMem(SmbiosRecord, TotalSize);
|
|
|
|
SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_PROCESSOR_INFORMATION;
|
|
SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE4);
|
|
//
|
|
// Make handle chosen by smbios protocol.add automatically.
|
|
//
|
|
SmbiosRecord->Hdr.Handle = 0;
|
|
//
|
|
// Processor version is the 1st string.
|
|
//
|
|
SmbiosRecord->ProcessorVersion = 1;
|
|
//
|
|
// Store CPU frequency data record to data hub - It's an emulator so make up a value
|
|
//
|
|
SmbiosRecord->CurrentSpeed = 1234;
|
|
|
|
OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
|
|
UnicodeStrToAsciiStr(CpuVerStr, OptionalStrStart);
|
|
|
|
//
|
|
// Now we have got the full smbios record, call smbios protocol to add this record.
|
|
//
|
|
LogSmbiosData(Smbios, (UINT8 *) SmbiosRecord);
|
|
FreePool (SmbiosRecord);
|
|
|
|
}
|
|
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
InitializeCpu (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Initialize the state information for the CPU Architectural Protocol
|
|
|
|
Arguments:
|
|
|
|
ImageHandle of the loaded driver
|
|
Pointer to the System Table
|
|
|
|
Returns:
|
|
|
|
Status
|
|
|
|
EFI_SUCCESS - protocol instance can be published
|
|
EFI_OUT_OF_RESOURCES - cannot allocate protocol data structure
|
|
EFI_DEVICE_ERROR - cannot create the thread
|
|
|
|
--*/
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT64 Frequency;
|
|
|
|
//
|
|
// Retrieve the frequency of the performance counter in Hz.
|
|
//
|
|
gWinNt->QueryPerformanceFrequency ((LARGE_INTEGER *)&Frequency);
|
|
|
|
//
|
|
// Convert frequency in Hz to a clock period in femtoseconds.
|
|
//
|
|
mTimerPeriod = DivU64x64Remainder (1000000000000000, Frequency, NULL);
|
|
|
|
CpuUpdateSmbios ();
|
|
|
|
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
&mCpuTemplate.Handle,
|
|
&gEfiCpuArchProtocolGuid, &mCpuTemplate.Cpu,
|
|
&gEfiCpuIo2ProtocolGuid, &mCpuTemplate.CpuIo,
|
|
NULL
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Status;
|
|
}
|