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Add module that produces the SMM CPU I/O 2 Protocol 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9737 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney 2010-01-14 04:24:00 +00:00
parent 88ab69a3f2
commit 173eeac9eb
3 changed files with 509 additions and 2 deletions
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442
UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.c Normal file
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/** @file
Produces the SMM CPU I/O Protocol.
Copyright (c) 2009 - 2010, Intel Corporation
All rights reserved. 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.
**/
#include <PiSmm.h>
#include <Protocol/SmmCpuIo2.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/IoLib.h>
#include <Library/SmmServicesTableLib.h>
#include <Library/BaseMemoryLib.h>
#define MAX_IO_PORT_ADDRESS 0xFFFF
//
// Function Prototypes
//
EFI_STATUS
EFIAPI
CpuMemoryServiceRead (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
CpuMemoryServiceWrite (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
);
EFI_STATUS
EFIAPI
CpuIoServiceRead (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
CpuIoServiceWrite (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
);
//
// Handle for the SMM CPU I/O Protocol
//
EFI_HANDLE mHandle = NULL;
//
// SMM CPU I/O Protocol instance
//
EFI_SMM_CPU_IO2_PROTOCOL mSmmCpuIo2 = {
{
CpuMemoryServiceRead,
CpuMemoryServiceWrite
},
{
CpuIoServiceRead,
CpuIoServiceWrite
}
};
//
// Lookup table for increment values based on transfer widths
//
UINT8 mStride[] = {
1, // SMM_IO_UINT8
2, // SMM_IO_UINT16
4, // SMM_IO_UINT32
8 // SMM_IO_UINT64
};
/**
Check parameters to a SMM CPU I/O Protocol service request.
@param Width Signifies the width of the I/O or Memory operation.
@param Address The base address of the I/O or Memory operation.
@param Count The number of I/O or Memory operations to perform.
The number of bytes moved is Width size * Count, starting at Address.
@param Buffer For read operations, the destination buffer to store the results.
For write operations, the source buffer from which to write data.
@param MmioOperation TRUE for an MMIO operation, FALSE for I/O Port operation.
@retval EFI_SUCCESS The parameters for this request pass the checks.
@retval EFI_INVALID_PARAMETER Buffer is NULL or Width is not valid.
@retval EFI_UNSUPPORTED The address range specified by Address, Width, and Count exceeds Limit.
The Buffer is not aligned for the given Width.
**/
EFI_STATUS
CpuIoCheckParameter (
IN BOOLEAN MmioOperation,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
)
{
UINT64 MaxCount;
UINT64 Limit;
//
// Check to see if Buffer is NULL
//
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Check to see if Width is in the valid range
//
if (Width > SMM_IO_UINT64) {
return EFI_INVALID_PARAMETER;
}
//
// Check to see if Width is in the valid range for I/O Port operations
//
if (!MmioOperation && (Width == SMM_IO_UINT64)) {
return EFI_INVALID_PARAMETER;
}
//
// Check to see if any address associated with this transfer exceeds the maximum
// allowed address. The maximum address implied by the parameters passed in is
// Address + Size * Count. If the following condition is met, then the transfer
// is not supported.
//
// Address + Size * Count > (MmioOperation ? MAX_ADDRESS : MAX_IO_PORT_ADDRESS) + 1
//
// Since MAX_ADDRESS can be the maximum integer value supported by the CPU and Count
// can also be the maximum integer value supported by the CPU, this range
// check must be adjusted to avoid all oveflow conditions.
//
// The follwing form of the range check is equivalent but assumes that
// MAX_ADDRESS and MAX_IO_PORT_ADDRESS are of the form (2^n - 1).
//
Limit = (MmioOperation ? MAX_ADDRESS : MAX_IO_PORT_ADDRESS);
if (Count == 0) {
if (Address > Limit) {
return EFI_UNSUPPORTED;
}
} else {
MaxCount = RShiftU64 (Limit, Width);
if (MaxCount < (Count - 1)) {
return EFI_UNSUPPORTED;
}
if (Address > LShiftU64 (MaxCount - Count + 1, Width)) {
return EFI_UNSUPPORTED;
}
}
//
// Check to see if Address is aligned
//
if ((Address & (UINT64)(mStride[Width] - 1)) != 0) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}
/**
Reads memory-mapped registers.
@param This A pointer to the EFI_SMM_CPU_IO2_PROTOCOL instance.
@param Width Signifies the width of the I/O or Memory operation.
@param Address The base address of the I/O or Memoryoperation.
@param Count The number of I/O or Memory operations to perform.
The number of bytes moved is Width size * Count, starting at Address.
@param Buffer For read operations, the destination buffer to store the results.
For write operations, the source buffer from which to write data.
@retval EFI_SUCCESS The data was read from or written to the EFI system.
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system.Or Buffer is NULL.
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
**/
EFI_STATUS
EFIAPI
CpuMemoryServiceRead (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
UINT8 Stride;
UINT8 *Uint8Buffer;
Status = CpuIoCheckParameter (TRUE, Width, Address, Count, Buffer);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Select loop based on the width of the transfer
//
Stride = mStride[Width];
for (Uint8Buffer = Buffer; Count > 0; Address += Stride, Uint8Buffer += Stride, Count--) {
if (Width == SMM_IO_UINT8) {
*Uint8Buffer = MmioRead8 ((UINTN)Address);
} else if (Width == SMM_IO_UINT16) {
*((UINT16 *)Uint8Buffer) = MmioRead16 ((UINTN)Address);
} else if (Width == SMM_IO_UINT32) {
*((UINT32 *)Uint8Buffer) = MmioRead32 ((UINTN)Address);
} else if (Width == SMM_IO_UINT64) {
*((UINT64 *)Uint8Buffer) = MmioRead64 ((UINTN)Address);
}
}
return EFI_SUCCESS;
}
/**
Writes memory-mapped registers.
@param This A pointer to the EFI_SMM_CPU_IO2_PROTOCOL instance.
@param Width Signifies the width of the I/O or Memory operation.
@param Address The base address of the I/O or Memoryoperation.
@param Count The number of I/O or Memory operations to perform.
The number of bytes moved is Width size * Count, starting at Address.
@param Buffer For read operations, the destination buffer to store the results.
For write operations, the source buffer from which to write data.
@retval EFI_SUCCESS The data was read from or written to the EFI system.
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system.Or Buffer is NULL.
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
**/
EFI_STATUS
EFIAPI
CpuMemoryServiceWrite (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
)
{
EFI_STATUS Status;
UINT8 Stride;
UINT8 *Uint8Buffer;
Status = CpuIoCheckParameter (TRUE, Width, Address, Count, Buffer);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Select loop based on the width of the transfer
//
Stride = mStride[Width];
for (Uint8Buffer = Buffer; Count > 0; Address += Stride, Uint8Buffer += Stride, Count--) {
if (Width == SMM_IO_UINT8) {
MmioWrite8 ((UINTN)Address, *Uint8Buffer);
} else if (Width == SMM_IO_UINT16) {
MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
} else if (Width == SMM_IO_UINT32) {
MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
} else if (Width == SMM_IO_UINT64) {
MmioWrite64 ((UINTN)Address, *((UINT64 *)Uint8Buffer));
}
}
return EFI_SUCCESS;
}
/**
Reads I/O registers.
@param This A pointer to the EFI_SMM_CPU_IO2_PROTOCOL instance.
@param Width Signifies the width of the I/O or Memory operation.
@param Address The base address of the I/O or Memoryoperation.
@param Count The number of I/O or Memory operations to perform.
The number of bytes moved is Width size * Count, starting at Address.
@param Buffer For read operations, the destination buffer to store the results.
For write operations, the source buffer from which to write data.
@retval EFI_SUCCESS The data was read from or written to the EFI system.
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system.Or Buffer is NULL.
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
**/
EFI_STATUS
EFIAPI
CpuIoServiceRead (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
UINT8 Stride;
UINT8 *Uint8Buffer;
Status = CpuIoCheckParameter (FALSE, Width, Address, Count, Buffer);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Select loop based on the width of the transfer
//
Stride = mStride[Width];
for (Uint8Buffer = Buffer; Count > 0; Address += Stride, Uint8Buffer += Stride, Count--) {
if (Width == SMM_IO_UINT8) {
*Uint8Buffer = IoRead8 ((UINTN)Address);
} else if (Width == SMM_IO_UINT16) {
*((UINT16 *)Uint8Buffer) = IoRead16 ((UINTN)Address);
} else if (Width == SMM_IO_UINT32) {
*((UINT32 *)Uint8Buffer) = IoRead32 ((UINTN)Address);
}
}
return EFI_SUCCESS;
}
/**
Write I/O registers.
@param This A pointer to the EFI_SMM_CPU_IO2_PROTOCOL instance.
@param Width Signifies the width of the I/O or Memory operation.
@param Address The base address of the I/O or Memoryoperation.
@param Count The number of I/O or Memory operations to perform.
The number of bytes moved is Width size * Count, starting at Address.
@param Buffer For read operations, the destination buffer to store the results.
For write operations, the source buffer from which to write data.
@retval EFI_SUCCESS The data was read from or written to the EFI system.
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system.Or Buffer is NULL.
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
**/
EFI_STATUS
EFIAPI
CpuIoServiceWrite (
IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
IN EFI_SMM_IO_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
)
{
EFI_STATUS Status;
UINT8 Stride;
UINT8 *Uint8Buffer;
//
// Make sure the parameters are valid
//
Status = CpuIoCheckParameter (FALSE, Width, Address, Count, Buffer);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Select loop based on the width of the transfer
//
Stride = mStride[Width];
for (Uint8Buffer = (UINT8 *)Buffer; Count > 0; Address += Stride, Uint8Buffer += Stride, Count--) {
if (Width == SMM_IO_UINT8) {
IoWrite8 ((UINTN)Address, *Uint8Buffer);
} else if (Width == SMM_IO_UINT16) {
IoWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
} else if (Width == SMM_IO_UINT32) {
IoWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
}
}
return EFI_SUCCESS;
}
/**
The module Entry Point SmmCpuIoProtocol driver
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval Other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
SmmCpuIo2Initialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Copy the SMM CPU I/O Protocol instance into the System Management System Table
//
CopyMem (&gSmst->SmmIo, &mSmmCpuIo2, sizeof (mSmmCpuIo2));
//
// Install the SMM CPU I/O Protocol into the SMM protocol database
//
Status = gSmst->SmmInstallProtocolInterface (
&mHandle,
&gEfiSmmCpuIo2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&mSmmCpuIo2
);
ASSERT_EFI_ERROR (Status);
return Status;
}

51
UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf Normal file
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@ -0,0 +1,51 @@
#/** @file
# Component description file for CPU I/O SMM Driver.
#
# Copyright (c) 2009 - 2010, Intel Corporation.
#
# All rights reserved.
# This software and associated documentation (if any) is furnished
# under a license and may only be used or copied in accordance
# with the terms of the license. Except as permitted by such
# license, no part of this software or documentation may be
# reproduced, stored in a retrieval system, or transmitted in any
# form or by any means without the express written consent of
# Intel Corporation.
#
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = CpuIo2Smm
FILE_GUID = A47EE2D8-F60E-42fd-8E58-7BD65EE4C29B
MODULE_TYPE = DXE_SMM_DRIVER
VERSION_STRING = 1.0
PI_SPECIFICATION_VERSION = 0x0001000A
ENTRY_POINT = SmmCpuIo2Initialize
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64
#
[Sources]
CpuIo2Smm.c
[Packages]
MdePkg/MdePkg.dec
[LibraryClasses]
UefiDriverEntryPoint
BaseLib
DebugLib
IoLib
SmmServicesTableLib
BaseMemoryLib
[Protocols]
gEfiSmmCpuIo2ProtocolGuid # PROTOCOL ALWAYS_CONSUMED
[Depex]
TRUE

18
UefiCpuPkg/UefiCpuPkg.dsc
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@ -1,7 +1,7 @@
#/** @file
# UefiCpuPkg Package
#
# Copyright (c) 2007 - 2009, Intel Corporation
# Copyright (c) 2007 - 2010, Intel Corporation
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@ -19,7 +19,7 @@
PLATFORM_VERSION = 0.1
DSC_SPECIFICATION = 0x00010005
OUTPUT_DIRECTORY = Build/UefiCpu
SUPPORTED_ARCHITECTURES = IA32|X64
SUPPORTED_ARCHITECTURES = IA32|IPF|X64
BUILD_TARGETS = DEBUG|RELEASE
SKUID_IDENTIFIER = DEFAULT
@ -38,16 +38,30 @@
PrintLib|MdePkg/Library/BasePrintLib/BasePrintLib.inf
IoLib|MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
[LibraryClasses.common.PEIM]
PeimEntryPoint|MdePkg/Library/PeimEntryPoint/PeimEntryPoint.inf
PeiServicesTablePointerLib|MdePkg/Library/PeiServicesTablePointerLibIdt/PeiServicesTablePointerLibIdt.inf
PeiServicesLib|MdePkg/Library/PeiServicesLib/PeiServicesLib.inf
MemoryAllocationLib|MdePkg/Library/PeiMemoryAllocationLib/PeiMemoryAllocationLib.inf
[LibraryClasses.common.DXE_DRIVER]
DxeServicesTableLib|MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.inf
MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
UefiBootServicesTableLib|MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
UefiDriverEntryPoint|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf
[LibraryClasses.common.DXE_SMM_DRIVER]
UefiDriverEntryPoint|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf
SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf
UefiBootServicesTableLib|MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
#
# Drivers/Libraries within this package
#
[Components.common]
UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.inf
[Components.IA32, Components.X64]
UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf