mirror of
https://github.com/acidanthera/audk.git
synced 2025-07-23 21:54:27 +02:00
OvmfPkg: remove CsmSupportLib
CsmSupportLib is not used by any platform at this point, remove it.
This patch removes mentions of the following CSM resources from the source
code [*]:
- GUIDs (protocols or otherwise):
- SYSTEM_ROM_FILE_GUID (1547B4F3-3E8A-4FEF-81C8-328ED647AB1A)
- gEfiFirmwareVolumeProtocolGuid (by cutting the
<Protocol/FirmwareVolume.h> link)
- gEfiLegacyBiosPlatformProtocolGuid
- gEfiLegacyBiosProtocolGuid
- gEfiLegacyInterruptProtocolGuid
- headers:
- FrameworkDxe.h
- Protocol/FirmwareVolume.h
- Protocol/LegacyBiosPlatform.h
- Protocol/LegacyInterrupt.h
which extends the list of resources scheduled for removal to:
- GUIDs (protocols or otherwise):
- SYSTEM_ROM_FILE_GUID (1547B4F3-3E8A-4FEF-81C8-328ED647AB1A)
- gEfiFirmwareVolumeProtocolGuid
- gEfiLegacy8259ProtocolGuid
- gEfiLegacyBiosPlatformProtocolGuid
- gEfiLegacyBiosProtocolGuid
- gEfiLegacyInterruptProtocolGuid
- headers:
- FrameworkDxe.h
- Protocol/FirmwareVolume.h
- Protocol/Legacy8259.h
- Protocol/LegacyBios.h
- Protocol/LegacyBiosPlatform.h
- Protocol/LegacyInterrupt.h
[*] Note that gEfiLegacyRegion2ProtocolGuid, while a CSM-related protocol,
cannot be scheduled for removal, because the protocol GUID is defined in
"MdePkg.dec", and it's not only "OvmfPkg/Csm/CsmSupportLib" that produces
it in all of edk2, but also "MdeModulePkg/Universal/LegacyRegion2Dxe" (not
used by OVMF). For the same reason, the "Protocol/LegacyRegion2.h" header
(from MdePkg) cannot be scheduled for removal.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4588
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20231110235820.644381-23-lersek@redhat.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Corvin Köhne <corvink@FreeBSD.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Laszlo Ersek
mergify[bot]
parent
86cc0f15d9
commit
bc495d89d4
@ -1,31 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Platform CSM Support Library
|
|
||||||
|
|
||||||
Copyright (c) 2008 - 2011, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#include "CsmSupportLib.h"
|
|
||||||
|
|
||||||
/**
|
|
||||||
The constructor function for the platform CSM support library
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The constructor always returns RETURN_SUCCESS.
|
|
||||||
|
|
||||||
**/
|
|
||||||
RETURN_STATUS
|
|
||||||
EFIAPI
|
|
||||||
CsmSupportLibConstructor (
|
|
||||||
VOID
|
|
||||||
)
|
|
||||||
{
|
|
||||||
LegacyRegionInit ();
|
|
||||||
|
|
||||||
LegacyInterruptInstall ();
|
|
||||||
|
|
||||||
LegacyBiosPlatformInstall ();
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
@ -1,48 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Platform CSM Support Library
|
|
||||||
|
|
||||||
Copyright (c) 2008 - 2011, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#ifndef _CSM_SUPPORT_LIB_H_
|
|
||||||
#define _CSM_SUPPORT_LIB_H_
|
|
||||||
|
|
||||||
#include <Uefi.h>
|
|
||||||
|
|
||||||
/**
|
|
||||||
Initialize Legacy Region support
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Successfully initialized
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyRegionInit (
|
|
||||||
VOID
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Initialize Legacy Interrupt support
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Successfully initialized
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyInterruptInstall (
|
|
||||||
VOID
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Initialize Legacy Platform support
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Successfully initialized
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyBiosPlatformInstall (
|
|
||||||
VOID
|
|
||||||
);
|
|
||||||
|
|
||||||
#endif
|
|
||||||
@ -1,55 +0,0 @@
|
|||||||
## @file
|
|
||||||
# Platform CSM Support Library
|
|
||||||
#
|
|
||||||
# Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
|
|
||||||
# SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
#
|
|
||||||
##
|
|
||||||
|
|
||||||
[Defines]
|
|
||||||
INF_VERSION = 0x00010005
|
|
||||||
BASE_NAME = CsmSupportLib
|
|
||||||
FILE_GUID = 04e03541-4663-417d-93f6-976378247d61
|
|
||||||
MODULE_TYPE = BASE
|
|
||||||
VERSION_STRING = 1.0
|
|
||||||
LIBRARY_CLASS = CsmSupportLib
|
|
||||||
|
|
||||||
CONSTRUCTOR = CsmSupportLibConstructor
|
|
||||||
|
|
||||||
#
|
|
||||||
# The following information is for reference only and not required by the build tools.
|
|
||||||
#
|
|
||||||
# VALID_ARCHITECTURES = IA32 X64 EBC
|
|
||||||
#
|
|
||||||
|
|
||||||
[Sources]
|
|
||||||
CsmSupportLib.c
|
|
||||||
CsmSupportLib.h
|
|
||||||
LegacyInterrupt.c
|
|
||||||
LegacyInterrupt.h
|
|
||||||
LegacyPlatform.c
|
|
||||||
LegacyPlatform.h
|
|
||||||
LegacyRegion.c
|
|
||||||
LegacyRegion.h
|
|
||||||
|
|
||||||
[Packages]
|
|
||||||
MdePkg/MdePkg.dec
|
|
||||||
OvmfPkg/OvmfPkg.dec
|
|
||||||
|
|
||||||
[Pcd]
|
|
||||||
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
|
|
||||||
|
|
||||||
[Protocols]
|
|
||||||
gEfiDevicePathProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|
|
||||||
gEfiDiskInfoProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|
|
||||||
gEfiLegacyBiosPlatformProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|
|
||||||
gEfiLegacyBiosProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|
|
||||||
gEfiLegacyInterruptProtocolGuid # PROTOCOL ALWAYS_PRODUCED
|
|
||||||
gEfiLegacyRegion2ProtocolGuid # PROTOCOL ALWAYS_PRODUCED
|
|
||||||
gEfiPciIoProtocolGuid # PROTOCOL ALWAYS_CONSUMED
|
|
||||||
|
|
||||||
[LibraryClasses]
|
|
||||||
BaseLib
|
|
||||||
PciLib
|
|
||||||
IoLib
|
|
||||||
|
|
||||||
@ -1,212 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Legacy Interrupt Support
|
|
||||||
|
|
||||||
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#include "LegacyInterrupt.h"
|
|
||||||
|
|
||||||
//
|
|
||||||
// Handle for the Legacy Interrupt Protocol instance produced by this driver
|
|
||||||
//
|
|
||||||
STATIC EFI_HANDLE mLegacyInterruptHandle = NULL;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Legacy Interrupt Device number (0x01 on piix4, 0x1f on q35/mch)
|
|
||||||
//
|
|
||||||
STATIC UINT8 mLegacyInterruptDevice;
|
|
||||||
|
|
||||||
//
|
|
||||||
// The Legacy Interrupt Protocol instance produced by this driver
|
|
||||||
//
|
|
||||||
STATIC EFI_LEGACY_INTERRUPT_PROTOCOL mLegacyInterrupt = {
|
|
||||||
GetNumberPirqs,
|
|
||||||
GetLocation,
|
|
||||||
ReadPirq,
|
|
||||||
WritePirq
|
|
||||||
};
|
|
||||||
|
|
||||||
STATIC UINT8 PirqReg[MAX_PIRQ_NUMBER] = { PIRQA, PIRQB, PIRQC, PIRQD, PIRQE, PIRQF, PIRQG, PIRQH };
|
|
||||||
|
|
||||||
/**
|
|
||||||
Return the number of PIRQs supported by this chipset.
|
|
||||||
|
|
||||||
@param[in] This Pointer to LegacyInterrupt Protocol
|
|
||||||
@param[out] NumberPirqs The pointer to return the max IRQ number supported
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Max PIRQs successfully returned
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
GetNumberPirqs (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
OUT UINT8 *NumberPirqs
|
|
||||||
)
|
|
||||||
{
|
|
||||||
*NumberPirqs = MAX_PIRQ_NUMBER;
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Return PCI location of this device.
|
|
||||||
$PIR table requires this info.
|
|
||||||
|
|
||||||
@param[in] This - Protocol instance pointer.
|
|
||||||
@param[out] Bus - PCI Bus
|
|
||||||
@param[out] Device - PCI Device
|
|
||||||
@param[out] Function - PCI Function
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Bus/Device/Function returned
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
GetLocation (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
OUT UINT8 *Bus,
|
|
||||||
OUT UINT8 *Device,
|
|
||||||
OUT UINT8 *Function
|
|
||||||
)
|
|
||||||
{
|
|
||||||
*Bus = LEGACY_INT_BUS;
|
|
||||||
*Device = mLegacyInterruptDevice;
|
|
||||||
*Function = LEGACY_INT_FUNC;
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Builds the PCI configuration address for the register specified by PirqNumber
|
|
||||||
|
|
||||||
@param[in] PirqNumber - The PIRQ number to build the PCI configuration address for
|
|
||||||
|
|
||||||
@return The PCI Configuration address for the PIRQ
|
|
||||||
**/
|
|
||||||
UINTN
|
|
||||||
GetAddress (
|
|
||||||
UINT8 PirqNumber
|
|
||||||
)
|
|
||||||
{
|
|
||||||
return PCI_LIB_ADDRESS (
|
|
||||||
LEGACY_INT_BUS,
|
|
||||||
mLegacyInterruptDevice,
|
|
||||||
LEGACY_INT_FUNC,
|
|
||||||
PirqReg[PirqNumber]
|
|
||||||
);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Read the given PIRQ register
|
|
||||||
|
|
||||||
@param[in] This Protocol instance pointer
|
|
||||||
@param[in] PirqNumber The Pirq register 0 = A, 1 = B etc
|
|
||||||
@param[out] PirqData Value read
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Decoding change affected.
|
|
||||||
@retval EFI_INVALID_PARAMETER Invalid PIRQ number
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
ReadPirq (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
IN UINT8 PirqNumber,
|
|
||||||
OUT UINT8 *PirqData
|
|
||||||
)
|
|
||||||
{
|
|
||||||
if (PirqNumber >= MAX_PIRQ_NUMBER) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
*PirqData = PciRead8 (GetAddress (PirqNumber));
|
|
||||||
*PirqData = (UINT8)(*PirqData & 0x7f);
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Write the given PIRQ register
|
|
||||||
|
|
||||||
@param[in] This Protocol instance pointer
|
|
||||||
@param[in] PirqNumber The Pirq register 0 = A, 1 = B etc
|
|
||||||
@param[out] PirqData Value to write
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Decoding change affected.
|
|
||||||
@retval EFI_INVALID_PARAMETER Invalid PIRQ number
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
WritePirq (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
IN UINT8 PirqNumber,
|
|
||||||
IN UINT8 PirqData
|
|
||||||
)
|
|
||||||
{
|
|
||||||
if (PirqNumber >= MAX_PIRQ_NUMBER) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
PciWrite8 (GetAddress (PirqNumber), PirqData);
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Initialize Legacy Interrupt support
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Successfully initialized
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyInterruptInstall (
|
|
||||||
VOID
|
|
||||||
)
|
|
||||||
{
|
|
||||||
UINT16 HostBridgeDevId;
|
|
||||||
EFI_STATUS Status;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Make sure the Legacy Interrupt Protocol is not already installed in the system
|
|
||||||
//
|
|
||||||
ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiLegacyInterruptProtocolGuid);
|
|
||||||
|
|
||||||
//
|
|
||||||
// Query Host Bridge DID to determine platform type, then set device number
|
|
||||||
//
|
|
||||||
HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
|
|
||||||
switch (HostBridgeDevId) {
|
|
||||||
case INTEL_82441_DEVICE_ID:
|
|
||||||
mLegacyInterruptDevice = LEGACY_INT_DEV_PIIX4;
|
|
||||||
break;
|
|
||||||
case INTEL_Q35_MCH_DEVICE_ID:
|
|
||||||
mLegacyInterruptDevice = LEGACY_INT_DEV_Q35;
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
DEBUG ((
|
|
||||||
DEBUG_ERROR,
|
|
||||||
"%a: Unknown Host Bridge Device ID: 0x%04x\n",
|
|
||||||
__func__,
|
|
||||||
HostBridgeDevId
|
|
||||||
));
|
|
||||||
ASSERT (FALSE);
|
|
||||||
return EFI_UNSUPPORTED;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Make a new handle and install the protocol
|
|
||||||
//
|
|
||||||
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
||||||
&mLegacyInterruptHandle,
|
|
||||||
&gEfiLegacyInterruptProtocolGuid,
|
|
||||||
&mLegacyInterrupt,
|
|
||||||
NULL
|
|
||||||
);
|
|
||||||
ASSERT_EFI_ERROR (Status);
|
|
||||||
|
|
||||||
return Status;
|
|
||||||
}
|
|
||||||
@ -1,115 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Legacy Region Support
|
|
||||||
|
|
||||||
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#ifndef _LEGACY_INTERRUPT_H_
|
|
||||||
#define _LEGACY_INTERRUPT_H_
|
|
||||||
|
|
||||||
#include <PiDxe.h>
|
|
||||||
|
|
||||||
#include <Protocol/LegacyInterrupt.h>
|
|
||||||
|
|
||||||
#include <Library/PcdLib.h>
|
|
||||||
#include <Library/PciLib.h>
|
|
||||||
#include <Library/DebugLib.h>
|
|
||||||
#include <Library/UefiBootServicesTableLib.h>
|
|
||||||
#include <OvmfPlatforms.h>
|
|
||||||
|
|
||||||
#define LEGACY_INT_BUS 0
|
|
||||||
#define LEGACY_INT_DEV_PIIX4 0x01
|
|
||||||
#define LEGACY_INT_DEV_Q35 0x1f
|
|
||||||
#define LEGACY_INT_FUNC 0
|
|
||||||
|
|
||||||
#define PIRQN 0x00 // PIRQ Null
|
|
||||||
#define PIRQA 0x60
|
|
||||||
#define PIRQB 0x61
|
|
||||||
#define PIRQC 0x62
|
|
||||||
#define PIRQD 0x63
|
|
||||||
#define PIRQE 0x68
|
|
||||||
#define PIRQF 0x69
|
|
||||||
#define PIRQG 0x6A
|
|
||||||
#define PIRQH 0x6B
|
|
||||||
|
|
||||||
#define MAX_PIRQ_NUMBER 8
|
|
||||||
|
|
||||||
/**
|
|
||||||
Return the number of PIRQs supported by this chipset.
|
|
||||||
|
|
||||||
@param[in] This Pointer to LegacyInterrupt Protocol
|
|
||||||
@param[out] NumberPirqs The pointer to return the max IRQ number supported
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Max PIRQs successfully returned
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
GetNumberPirqs (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
OUT UINT8 *NumberPirqs
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Return PCI location of this device.
|
|
||||||
$PIR table requires this info.
|
|
||||||
|
|
||||||
@param[in] This - Protocol instance pointer.
|
|
||||||
@param[out] Bus - PCI Bus
|
|
||||||
@param[out] Device - PCI Device
|
|
||||||
@param[out] Function - PCI Function
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Bus/Device/Function returned
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
GetLocation (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
OUT UINT8 *Bus,
|
|
||||||
OUT UINT8 *Device,
|
|
||||||
OUT UINT8 *Function
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Read the given PIRQ register
|
|
||||||
|
|
||||||
@param[in] This Protocol instance pointer
|
|
||||||
@param[in] PirqNumber The Pirq register 0 = A, 1 = B etc
|
|
||||||
@param[out] PirqData Value read
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Decoding change affected.
|
|
||||||
@retval EFI_INVALID_PARAMETER Invalid PIRQ number
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
ReadPirq (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
IN UINT8 PirqNumber,
|
|
||||||
OUT UINT8 *PirqData
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Write the given PIRQ register
|
|
||||||
|
|
||||||
@param[in] This Protocol instance pointer
|
|
||||||
@param[in] PirqNumber The Pirq register 0 = A, 1 = B etc
|
|
||||||
@param[out] PirqData Value to write
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Decoding change affected.
|
|
||||||
@retval EFI_INVALID_PARAMETER Invalid PIRQ number
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
WritePirq (
|
|
||||||
IN EFI_LEGACY_INTERRUPT_PROTOCOL *This,
|
|
||||||
IN UINT8 PirqNumber,
|
|
||||||
IN UINT8 PirqData
|
|
||||||
);
|
|
||||||
|
|
||||||
#endif
|
|
||||||
File diff suppressed because it is too large
Load Diff
@ -1,97 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Legacy BIOS Platform support
|
|
||||||
|
|
||||||
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#ifndef LEGACY_BIOS_PLATFORM_H_
|
|
||||||
#define LEGACY_BIOS_PLATFORM_H_
|
|
||||||
|
|
||||||
#include <FrameworkDxe.h>
|
|
||||||
|
|
||||||
#include <Protocol/PciIo.h>
|
|
||||||
#include <Protocol/PciRootBridgeIo.h>
|
|
||||||
#include <Protocol/DevicePath.h>
|
|
||||||
#include <Protocol/LegacyInterrupt.h>
|
|
||||||
#include <Protocol/LegacyRegion2.h>
|
|
||||||
#include <Protocol/LegacyBiosPlatform.h>
|
|
||||||
#include <Protocol/FirmwareVolume.h>
|
|
||||||
#include <Protocol/DiskInfo.h>
|
|
||||||
|
|
||||||
#include <Library/UefiDriverEntryPoint.h>
|
|
||||||
#include <Library/UefiBootServicesTableLib.h>
|
|
||||||
#include <Library/UefiRuntimeServicesTableLib.h>
|
|
||||||
#include <Library/DebugLib.h>
|
|
||||||
#include <Library/BaseMemoryLib.h>
|
|
||||||
#include <Library/MemoryAllocationLib.h>
|
|
||||||
#include <Library/IoLib.h>
|
|
||||||
#include <Library/PciLib.h>
|
|
||||||
#include <Library/PcdLib.h>
|
|
||||||
#include <Library/DxeServicesLib.h>
|
|
||||||
#include <Library/DevicePathLib.h>
|
|
||||||
|
|
||||||
#include <IndustryStandard/Pci.h>
|
|
||||||
|
|
||||||
//
|
|
||||||
// PIRQ information constants.
|
|
||||||
//
|
|
||||||
#define MAX_IRQ_ROUTING_ENTRIES 6
|
|
||||||
#define MAX_IRQ_PRIORITY_ENTRIES 7
|
|
||||||
|
|
||||||
#define V_INTEL_VENDOR_ID 0x8086
|
|
||||||
#define V_PIIX4_IDE_DEVICE_ID 0x7010
|
|
||||||
|
|
||||||
//
|
|
||||||
// Type declarations
|
|
||||||
//
|
|
||||||
typedef struct {
|
|
||||||
UINT8 SetupValue;
|
|
||||||
UINT16 DeviceType;
|
|
||||||
UINT8 Class;
|
|
||||||
UINT8 SubClass;
|
|
||||||
} EFI_SETUP_BBS_MAP;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
UINT8 Class;
|
|
||||||
UINT8 SubClass;
|
|
||||||
} PCI_CLASS_RECORD;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
EFI_LEGACY_PIRQ_TABLE_HEADER PirqTable;
|
|
||||||
EFI_LEGACY_IRQ_ROUTING_ENTRY IrqRoutingEntry[MAX_IRQ_ROUTING_ENTRIES];
|
|
||||||
} EFI_LEGACY_PIRQ_TABLE;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
EFI_HANDLE Handle;
|
|
||||||
UINT16 Vid;
|
|
||||||
UINT16 Did;
|
|
||||||
UINT16 SvId;
|
|
||||||
UINT16 SysId;
|
|
||||||
} DEVICE_STRUCTURE;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
EFI_GUID FileName;
|
|
||||||
UINTN Valid;
|
|
||||||
} SYSTEM_ROM_TABLE;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
UINT32 Signature;
|
|
||||||
EFI_HANDLE Handle;
|
|
||||||
EFI_LEGACY_BIOS_PLATFORM_PROTOCOL LegacyBiosPlatform;
|
|
||||||
EFI_HANDLE ImageHandle;
|
|
||||||
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
|
|
||||||
} LEGACY_BIOS_PLATFORM_INSTANCE;
|
|
||||||
|
|
||||||
#define LEGACY_BIOS_PLATFORM_INSTANCE_SIGNATURE SIGNATURE_32('P','B','I','O')
|
|
||||||
|
|
||||||
#define LEGACY_BIOS_PLATFORM_INSTANCE_FROM_THIS(this) \
|
|
||||||
CR (this, \
|
|
||||||
LEGACY_BIOS_PLATFORM_INSTANCE, \
|
|
||||||
LegacyBiosPlatform, \
|
|
||||||
LEGACY_BIOS_PLATFORM_INSTANCE_SIGNATURE \
|
|
||||||
)
|
|
||||||
|
|
||||||
#endif
|
|
||||||
@ -1,506 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Legacy Region Support
|
|
||||||
|
|
||||||
Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#include "LegacyRegion.h"
|
|
||||||
|
|
||||||
//
|
|
||||||
// 440/Q35 PAM map.
|
|
||||||
//
|
|
||||||
// PAM Range Offset Bits Operation
|
|
||||||
// 440 Q35
|
|
||||||
// =============== ==== ==== ==== ===============================================================
|
|
||||||
// 0xC0000-0xC3FFF 0x5a 0x91 1:0 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xC4000-0xC7FFF 0x5a 0x91 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xC8000-0xCBFFF 0x5b 0x92 1:0 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xCC000-0xCFFFF 0x5b 0x92 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xD0000-0xD3FFF 0x5c 0x93 1:0 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xD4000-0xD7FFF 0x5c 0x93 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xD8000-0xDBFFF 0x5d 0x94 1:0 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xDC000-0xDFFFF 0x5d 0x94 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xE0000-0xE3FFF 0x5e 0x95 1:0 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xE4000-0xE7FFF 0x5e 0x95 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xE8000-0xEBFFF 0x5f 0x96 1:0 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xEC000-0xEFFFF 0x5f 0x96 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
// 0xF0000-0xFFFFF 0x59 0x90 5:4 00 = DRAM Disabled, 01= Read Only, 10 = Write Only, 11 = Normal
|
|
||||||
//
|
|
||||||
STATIC LEGACY_MEMORY_SECTION_INFO mSectionArray[] = {
|
|
||||||
{ 0xC0000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xC4000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xC8000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xCC000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xD0000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xD4000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xD8000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xDC000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xE0000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xE4000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xE8000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xEC000, SIZE_16KB, FALSE, FALSE },
|
|
||||||
{ 0xF0000, SIZE_64KB, FALSE, FALSE }
|
|
||||||
};
|
|
||||||
|
|
||||||
STATIC PAM_REGISTER_VALUE mRegisterValues440[] = {
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM1), 0x01, 0x02 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM1), 0x10, 0x20 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM2), 0x01, 0x02 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM2), 0x10, 0x20 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM3), 0x01, 0x02 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM3), 0x10, 0x20 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM4), 0x01, 0x02 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM4), 0x10, 0x20 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM5), 0x01, 0x02 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM5), 0x10, 0x20 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM6), 0x01, 0x02 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM6), 0x10, 0x20 },
|
|
||||||
{ PMC_REGISTER_PIIX4 (PIIX4_PAM0), 0x10, 0x20 }
|
|
||||||
};
|
|
||||||
|
|
||||||
STATIC PAM_REGISTER_VALUE mRegisterValuesQ35[] = {
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM1), 0x01, 0x02 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM1), 0x10, 0x20 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM2), 0x01, 0x02 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM2), 0x10, 0x20 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM3), 0x01, 0x02 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM3), 0x10, 0x20 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM4), 0x01, 0x02 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM4), 0x10, 0x20 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM5), 0x01, 0x02 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM5), 0x10, 0x20 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM6), 0x01, 0x02 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM6), 0x10, 0x20 },
|
|
||||||
{ DRAMC_REGISTER_Q35 (MCH_PAM0), 0x10, 0x20 }
|
|
||||||
};
|
|
||||||
|
|
||||||
STATIC PAM_REGISTER_VALUE *mRegisterValues;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Handle used to install the Legacy Region Protocol
|
|
||||||
//
|
|
||||||
STATIC EFI_HANDLE mHandle = NULL;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Instance of the Legacy Region Protocol to install into the handle database
|
|
||||||
//
|
|
||||||
STATIC EFI_LEGACY_REGION2_PROTOCOL mLegacyRegion2 = {
|
|
||||||
LegacyRegion2Decode,
|
|
||||||
LegacyRegion2Lock,
|
|
||||||
LegacyRegion2BootLock,
|
|
||||||
LegacyRegion2Unlock,
|
|
||||||
LegacyRegionGetInfo
|
|
||||||
};
|
|
||||||
|
|
||||||
STATIC
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyRegionManipulationInternal (
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
IN BOOLEAN *ReadEnable,
|
|
||||||
IN BOOLEAN *WriteEnable,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
)
|
|
||||||
{
|
|
||||||
UINT32 EndAddress;
|
|
||||||
UINTN Index;
|
|
||||||
UINTN StartIndex;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Validate input parameters.
|
|
||||||
//
|
|
||||||
if ((Length == 0) || (Granularity == NULL)) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
EndAddress = Start + Length - 1;
|
|
||||||
if ((Start < PAM_BASE_ADDRESS) || (EndAddress > PAM_LIMIT_ADDRESS)) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Loop to find the start PAM.
|
|
||||||
//
|
|
||||||
StartIndex = 0;
|
|
||||||
for (Index = 0; Index < ARRAY_SIZE (mSectionArray); Index++) {
|
|
||||||
if ((Start >= mSectionArray[Index].Start) && (Start < (mSectionArray[Index].Start + mSectionArray[Index].Length))) {
|
|
||||||
StartIndex = Index;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
ASSERT (Index < ARRAY_SIZE (mSectionArray));
|
|
||||||
|
|
||||||
//
|
|
||||||
// Program PAM until end PAM is encountered
|
|
||||||
//
|
|
||||||
for (Index = StartIndex; Index < ARRAY_SIZE (mSectionArray); Index++) {
|
|
||||||
if (ReadEnable != NULL) {
|
|
||||||
if (*ReadEnable) {
|
|
||||||
PciOr8 (
|
|
||||||
mRegisterValues[Index].PAMRegPciLibAddress,
|
|
||||||
mRegisterValues[Index].ReadEnableData
|
|
||||||
);
|
|
||||||
} else {
|
|
||||||
PciAnd8 (
|
|
||||||
mRegisterValues[Index].PAMRegPciLibAddress,
|
|
||||||
(UINT8)(~mRegisterValues[Index].ReadEnableData)
|
|
||||||
);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (WriteEnable != NULL) {
|
|
||||||
if (*WriteEnable) {
|
|
||||||
PciOr8 (
|
|
||||||
mRegisterValues[Index].PAMRegPciLibAddress,
|
|
||||||
mRegisterValues[Index].WriteEnableData
|
|
||||||
);
|
|
||||||
} else {
|
|
||||||
PciAnd8 (
|
|
||||||
mRegisterValues[Index].PAMRegPciLibAddress,
|
|
||||||
(UINT8)(~mRegisterValues[Index].WriteEnableData)
|
|
||||||
);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// If the end PAM is encountered, record its length as granularity and jump out.
|
|
||||||
//
|
|
||||||
if ((EndAddress >= mSectionArray[Index].Start) && (EndAddress < (mSectionArray[Index].Start + mSectionArray[Index].Length))) {
|
|
||||||
*Granularity = mSectionArray[Index].Length;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
ASSERT (Index < ARRAY_SIZE (mSectionArray));
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
STATIC
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyRegionGetInfoInternal (
|
|
||||||
OUT UINT32 *DescriptorCount,
|
|
||||||
OUT LEGACY_MEMORY_SECTION_INFO **Descriptor
|
|
||||||
)
|
|
||||||
{
|
|
||||||
UINTN Index;
|
|
||||||
UINT8 PamValue;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Check input parameters
|
|
||||||
//
|
|
||||||
if ((DescriptorCount == NULL) || (Descriptor == NULL)) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Fill in current status of legacy region.
|
|
||||||
//
|
|
||||||
*DescriptorCount = sizeof (mSectionArray) / sizeof (mSectionArray[0]);
|
|
||||||
for (Index = 0; Index < *DescriptorCount; Index++) {
|
|
||||||
PamValue = PciRead8 (mRegisterValues[Index].PAMRegPciLibAddress);
|
|
||||||
mSectionArray[Index].ReadEnabled = FALSE;
|
|
||||||
if ((PamValue & mRegisterValues[Index].ReadEnableData) != 0) {
|
|
||||||
mSectionArray[Index].ReadEnabled = TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
mSectionArray[Index].WriteEnabled = FALSE;
|
|
||||||
if ((PamValue & mRegisterValues[Index].WriteEnableData) != 0) {
|
|
||||||
mSectionArray[Index].WriteEnabled = TRUE;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
*Descriptor = mSectionArray;
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to allow (decode) or disallow (not decode) memory reads in a region.
|
|
||||||
|
|
||||||
If the On parameter evaluates to TRUE, this function enables memory reads in the address range
|
|
||||||
Start to (Start + Length - 1).
|
|
||||||
If the On parameter evaluates to FALSE, this function disables memory reads in the address range
|
|
||||||
Start to (Start + Length - 1).
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose attributes
|
|
||||||
should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address
|
|
||||||
was not aligned to a region's starting address or if the length
|
|
||||||
was greater than the number of bytes in the first region.
|
|
||||||
@param On[in] Decode / Non-Decode flag.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2Decode (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity,
|
|
||||||
IN BOOLEAN *On
|
|
||||||
)
|
|
||||||
{
|
|
||||||
return LegacyRegionManipulationInternal (Start, Length, On, NULL, Granularity);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to disallow memory attribute changes in a region.
|
|
||||||
|
|
||||||
This function makes the attributes of a region read only. Once a region is boot-locked with this
|
|
||||||
function, the read and write attributes of that region cannot be changed until a power cycle has
|
|
||||||
reset the boot-lock attribute. Calls to Decode(), Lock() and Unlock() will have no effect.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose
|
|
||||||
attributes should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address was
|
|
||||||
not aligned to a region's starting address or if the length was
|
|
||||||
greater than the number of bytes in the first region.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
@retval EFI_UNSUPPORTED The chipset does not support locking the configuration registers in
|
|
||||||
a way that will not affect memory regions outside the legacy memory
|
|
||||||
region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2BootLock (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
)
|
|
||||||
{
|
|
||||||
if ((Start < 0xC0000) || ((Start + Length - 1) > 0xFFFFF)) {
|
|
||||||
return EFI_INVALID_PARAMETER;
|
|
||||||
}
|
|
||||||
|
|
||||||
return EFI_UNSUPPORTED;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to disallow memory writes in a region.
|
|
||||||
|
|
||||||
This function changes the attributes of a memory range to not allow writes.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose
|
|
||||||
attributes should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address was
|
|
||||||
not aligned to a region's starting address or if the length was
|
|
||||||
greater than the number of bytes in the first region.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2Lock (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
)
|
|
||||||
{
|
|
||||||
BOOLEAN WriteEnable;
|
|
||||||
|
|
||||||
WriteEnable = FALSE;
|
|
||||||
return LegacyRegionManipulationInternal (Start, Length, NULL, &WriteEnable, Granularity);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to allow memory writes in a region.
|
|
||||||
|
|
||||||
This function changes the attributes of a memory range to allow writes.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose
|
|
||||||
attributes should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address was
|
|
||||||
not aligned to a region's starting address or if the length was
|
|
||||||
greater than the number of bytes in the first region.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2Unlock (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
)
|
|
||||||
{
|
|
||||||
BOOLEAN WriteEnable;
|
|
||||||
|
|
||||||
WriteEnable = TRUE;
|
|
||||||
return LegacyRegionManipulationInternal (Start, Length, NULL, &WriteEnable, Granularity);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Get region information for the attributes of the Legacy Region.
|
|
||||||
|
|
||||||
This function is used to discover the granularity of the attributes for the memory in the legacy
|
|
||||||
region. Each attribute may have a different granularity and the granularity may not be the same
|
|
||||||
for all memory ranges in the legacy region.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param DescriptorCount[out] The number of region descriptor entries returned in the Descriptor
|
|
||||||
buffer.
|
|
||||||
@param Descriptor[out] A pointer to a pointer used to return a buffer where the legacy
|
|
||||||
region information is deposited. This buffer will contain a list of
|
|
||||||
DescriptorCount number of region descriptors. This function will
|
|
||||||
provide the memory for the buffer.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegionGetInfo (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
OUT UINT32 *DescriptorCount,
|
|
||||||
OUT EFI_LEGACY_REGION_DESCRIPTOR **Descriptor
|
|
||||||
)
|
|
||||||
{
|
|
||||||
LEGACY_MEMORY_SECTION_INFO *SectionInfo;
|
|
||||||
UINT32 SectionCount;
|
|
||||||
EFI_LEGACY_REGION_DESCRIPTOR *DescriptorArray;
|
|
||||||
UINTN Index;
|
|
||||||
UINTN DescriptorIndex;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Get section numbers and information
|
|
||||||
//
|
|
||||||
LegacyRegionGetInfoInternal (&SectionCount, &SectionInfo);
|
|
||||||
|
|
||||||
//
|
|
||||||
// Each section has 3 descriptors, corresponding to readability, writeability, and lock status.
|
|
||||||
//
|
|
||||||
DescriptorArray = AllocatePool (sizeof (EFI_LEGACY_REGION_DESCRIPTOR) * SectionCount * 3);
|
|
||||||
if (DescriptorArray == NULL) {
|
|
||||||
return EFI_OUT_OF_RESOURCES;
|
|
||||||
}
|
|
||||||
|
|
||||||
DescriptorIndex = 0;
|
|
||||||
for (Index = 0; Index < SectionCount; Index++) {
|
|
||||||
DescriptorArray[DescriptorIndex].Start = SectionInfo[Index].Start;
|
|
||||||
DescriptorArray[DescriptorIndex].Length = SectionInfo[Index].Length;
|
|
||||||
DescriptorArray[DescriptorIndex].Granularity = SectionInfo[Index].Length;
|
|
||||||
if (SectionInfo[Index].ReadEnabled) {
|
|
||||||
DescriptorArray[DescriptorIndex].Attribute = LegacyRegionDecoded;
|
|
||||||
} else {
|
|
||||||
DescriptorArray[DescriptorIndex].Attribute = LegacyRegionNotDecoded;
|
|
||||||
}
|
|
||||||
|
|
||||||
DescriptorIndex++;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Create descriptor for writeability, according to lock status
|
|
||||||
//
|
|
||||||
DescriptorArray[DescriptorIndex].Start = SectionInfo[Index].Start;
|
|
||||||
DescriptorArray[DescriptorIndex].Length = SectionInfo[Index].Length;
|
|
||||||
DescriptorArray[DescriptorIndex].Granularity = SectionInfo[Index].Length;
|
|
||||||
if (SectionInfo[Index].WriteEnabled) {
|
|
||||||
DescriptorArray[DescriptorIndex].Attribute = LegacyRegionWriteEnabled;
|
|
||||||
} else {
|
|
||||||
DescriptorArray[DescriptorIndex].Attribute = LegacyRegionWriteDisabled;
|
|
||||||
}
|
|
||||||
|
|
||||||
DescriptorIndex++;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Chipset does not support bootlock.
|
|
||||||
//
|
|
||||||
DescriptorArray[DescriptorIndex].Start = SectionInfo[Index].Start;
|
|
||||||
DescriptorArray[DescriptorIndex].Length = SectionInfo[Index].Length;
|
|
||||||
DescriptorArray[DescriptorIndex].Granularity = SectionInfo[Index].Length;
|
|
||||||
DescriptorArray[DescriptorIndex].Attribute = LegacyRegionNotLocked;
|
|
||||||
DescriptorIndex++;
|
|
||||||
}
|
|
||||||
|
|
||||||
*DescriptorCount = (UINT32)DescriptorIndex;
|
|
||||||
*Descriptor = DescriptorArray;
|
|
||||||
|
|
||||||
return EFI_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
Initialize Legacy Region support
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS Successfully initialized
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
LegacyRegionInit (
|
|
||||||
VOID
|
|
||||||
)
|
|
||||||
{
|
|
||||||
EFI_STATUS Status;
|
|
||||||
UINT16 HostBridgeDevId;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Query Host Bridge DID to determine platform type
|
|
||||||
//
|
|
||||||
HostBridgeDevId = PcdGet16 (PcdOvmfHostBridgePciDevId);
|
|
||||||
switch (HostBridgeDevId) {
|
|
||||||
case INTEL_82441_DEVICE_ID:
|
|
||||||
mRegisterValues = mRegisterValues440;
|
|
||||||
break;
|
|
||||||
case INTEL_Q35_MCH_DEVICE_ID:
|
|
||||||
mRegisterValues = mRegisterValuesQ35;
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
DEBUG ((
|
|
||||||
DEBUG_ERROR,
|
|
||||||
"%a: Unknown Host Bridge Device ID: 0x%04x\n",
|
|
||||||
__func__,
|
|
||||||
HostBridgeDevId
|
|
||||||
));
|
|
||||||
ASSERT (FALSE);
|
|
||||||
return RETURN_UNSUPPORTED;
|
|
||||||
}
|
|
||||||
|
|
||||||
//
|
|
||||||
// Install the Legacy Region Protocol on a new handle
|
|
||||||
//
|
|
||||||
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
||||||
&mHandle,
|
|
||||||
&gEfiLegacyRegion2ProtocolGuid,
|
|
||||||
&mLegacyRegion2,
|
|
||||||
NULL
|
|
||||||
);
|
|
||||||
ASSERT_EFI_ERROR (Status);
|
|
||||||
|
|
||||||
return Status;
|
|
||||||
}
|
|
||||||
@ -1,202 +0,0 @@
|
|||||||
/** @file
|
|
||||||
Legacy Region Support
|
|
||||||
|
|
||||||
Copyright (c) 2008 - 2016, Intel Corporation. All rights reserved.<BR>
|
|
||||||
|
|
||||||
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
||||||
|
|
||||||
**/
|
|
||||||
|
|
||||||
#ifndef _LEGACY_REGION_DXE_H_
|
|
||||||
#define _LEGACY_REGION_DXE_H_
|
|
||||||
|
|
||||||
#include <PiDxe.h>
|
|
||||||
|
|
||||||
#include <Protocol/LegacyRegion2.h>
|
|
||||||
|
|
||||||
#include <IndustryStandard/Pci.h>
|
|
||||||
#include <IndustryStandard/Q35MchIch9.h>
|
|
||||||
#include <IndustryStandard/I440FxPiix4.h>
|
|
||||||
|
|
||||||
#include <Library/PciLib.h>
|
|
||||||
#include <Library/PcdLib.h>
|
|
||||||
#include <Library/DebugLib.h>
|
|
||||||
#include <Library/MemoryAllocationLib.h>
|
|
||||||
#include <Library/UefiBootServicesTableLib.h>
|
|
||||||
|
|
||||||
#define PAM_BASE_ADDRESS 0xc0000
|
|
||||||
#define PAM_LIMIT_ADDRESS BASE_1MB
|
|
||||||
|
|
||||||
//
|
|
||||||
// Describes Legacy Region blocks and status.
|
|
||||||
//
|
|
||||||
typedef struct {
|
|
||||||
UINT32 Start;
|
|
||||||
UINT32 Length;
|
|
||||||
BOOLEAN ReadEnabled;
|
|
||||||
BOOLEAN WriteEnabled;
|
|
||||||
} LEGACY_MEMORY_SECTION_INFO;
|
|
||||||
|
|
||||||
//
|
|
||||||
// Provides a map of the PAM registers and bits used to set Read/Write access.
|
|
||||||
//
|
|
||||||
typedef struct {
|
|
||||||
UINTN PAMRegPciLibAddress;
|
|
||||||
UINT8 ReadEnableData;
|
|
||||||
UINT8 WriteEnableData;
|
|
||||||
} PAM_REGISTER_VALUE;
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to allow (decode) or disallow (not decode) memory reads in a region.
|
|
||||||
|
|
||||||
If the On parameter evaluates to TRUE, this function enables memory reads in the address range
|
|
||||||
Start to (Start + Length - 1).
|
|
||||||
If the On parameter evaluates to FALSE, this function disables memory reads in the address range
|
|
||||||
Start to (Start + Length - 1).
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose attributes
|
|
||||||
should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address
|
|
||||||
was not aligned to a region's starting address or if the length
|
|
||||||
was greater than the number of bytes in the first region.
|
|
||||||
@param On[in] Decode / Non-Decode flag.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2Decode (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity,
|
|
||||||
IN BOOLEAN *On
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to disallow memory writes in a region.
|
|
||||||
|
|
||||||
This function changes the attributes of a memory range to not allow writes.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose
|
|
||||||
attributes should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address was
|
|
||||||
not aligned to a region's starting address or if the length was
|
|
||||||
greater than the number of bytes in the first region.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2Lock (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to disallow memory attribute changes in a region.
|
|
||||||
|
|
||||||
This function makes the attributes of a region read only. Once a region is boot-locked with this
|
|
||||||
function, the read and write attributes of that region cannot be changed until a power cycle has
|
|
||||||
reset the boot-lock attribute. Calls to Decode(), Lock() and Unlock() will have no effect.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose
|
|
||||||
attributes should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address was
|
|
||||||
not aligned to a region's starting address or if the length was
|
|
||||||
greater than the number of bytes in the first region.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
@retval EFI_UNSUPPORTED The chipset does not support locking the configuration registers in
|
|
||||||
a way that will not affect memory regions outside the legacy memory
|
|
||||||
region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2BootLock (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Modify the hardware to allow memory writes in a region.
|
|
||||||
|
|
||||||
This function changes the attributes of a memory range to allow writes.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param Start[in] The beginning of the physical address of the region whose
|
|
||||||
attributes should be modified.
|
|
||||||
@param Length[in] The number of bytes of memory whose attributes should be modified.
|
|
||||||
The actual number of bytes modified may be greater than the number
|
|
||||||
specified.
|
|
||||||
@param Granularity[out] The number of bytes in the last region affected. This may be less
|
|
||||||
than the total number of bytes affected if the starting address was
|
|
||||||
not aligned to a region's starting address or if the length was
|
|
||||||
greater than the number of bytes in the first region.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegion2Unlock (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
IN UINT32 Start,
|
|
||||||
IN UINT32 Length,
|
|
||||||
OUT UINT32 *Granularity
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
|
||||||
Get region information for the attributes of the Legacy Region.
|
|
||||||
|
|
||||||
This function is used to discover the granularity of the attributes for the memory in the legacy
|
|
||||||
region. Each attribute may have a different granularity and the granularity may not be the same
|
|
||||||
for all memory ranges in the legacy region.
|
|
||||||
|
|
||||||
@param This[in] Indicates the EFI_LEGACY_REGION_PROTOCOL instance.
|
|
||||||
@param DescriptorCount[out] The number of region descriptor entries returned in the Descriptor
|
|
||||||
buffer.
|
|
||||||
@param Descriptor[out] A pointer to a pointer used to return a buffer where the legacy
|
|
||||||
region information is deposited. This buffer will contain a list of
|
|
||||||
DescriptorCount number of region descriptors. This function will
|
|
||||||
provide the memory for the buffer.
|
|
||||||
|
|
||||||
@retval EFI_SUCCESS The region's attributes were successfully modified.
|
|
||||||
@retval EFI_INVALID_PARAMETER If Start or Length describe an address not in the Legacy Region.
|
|
||||||
|
|
||||||
**/
|
|
||||||
EFI_STATUS
|
|
||||||
EFIAPI
|
|
||||||
LegacyRegionGetInfo (
|
|
||||||
IN EFI_LEGACY_REGION2_PROTOCOL *This,
|
|
||||||
OUT UINT32 *DescriptorCount,
|
|
||||||
OUT EFI_LEGACY_REGION_DESCRIPTOR **Descriptor
|
|
||||||
);
|
|
||||||
|
|
||||||
#endif
|
|
||||||
Loading…
x
Reference in New Issue
Block a user