804405e7d1
1. change *.msa to *.inf, and create platform configuration files .dec&.dsc&.fdf to comply with Edk2 build process 2. using PCD mechanism to replace macro. 3. change Sec code to cowork with PI1.0 Pei Core and produce temparory memory ppi. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5380 6f19259b-4bc3-4df7-8a09-765794883524
537 lines
13 KiB
C
537 lines
13 KiB
C
/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Cpu.c
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Abstract:
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Unix Emulation Architectural Protocol Driver as defined in Tiano.
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This CPU module abstracts the interrupt subsystem of a platform and
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the CPU-specific setjump/long pair. Other services are not implemented
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in this driver.
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--*/
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#include "PiDxe.h"
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#include <Protocol/Cpu.h>
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#include <Protocol/DataHub.h>
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#include <Guid/DataHubRecords.h>
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#include <Protocol/CpuIo.h>
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#include <Protocol/FrameworkHii.h>
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#include <Guid/DataHubProducer.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HiiLib.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Framework/DataHubRecords.h>
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#include "CpuDriver.h"
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#include "UnixDxe.h"
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#include <Protocol/UnixIo.h>
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#define EFI_CPU_DATA_MAXIMUM_LENGTH 0x100
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CPU_ARCH_PROTOCOL_PRIVATE mCpuTemplate = {
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CPU_ARCH_PROT_PRIVATE_SIGNATURE,
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NULL,
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{
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UnixFlushCpuDataCache,
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UnixEnableInterrupt,
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UnixDisableInterrupt,
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UnixGetInterruptState,
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UnixInit,
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UnixRegisterInterruptHandler,
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UnixGetTimerValue,
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UnixSetMemoryAttributes,
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0,
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4
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},
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{
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CpuMemoryServiceRead,
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CpuMemoryServiceWrite,
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CpuIoServiceRead,
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CpuIoServiceWrite
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},
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0,
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TRUE
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};
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typedef union {
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EFI_CPU_DATA_RECORD *DataRecord;
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UINT8 *Raw;
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} EFI_CPU_DATA_RECORD_BUFFER;
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EFI_SUBCLASS_TYPE1_HEADER mCpuDataRecordHeader = {
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EFI_PROCESSOR_SUBCLASS_VERSION, // Version
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sizeof (EFI_SUBCLASS_TYPE1_HEADER), // Header Size
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0, // Instance, Initialize later
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EFI_SUBCLASS_INSTANCE_NON_APPLICABLE, // SubInstance
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0 // RecordType, Initialize later
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};
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//
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// Service routines for the driver
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//
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EFI_STATUS
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EFIAPI
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UnixFlushCpuDataCache (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS Start,
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IN UINT64 Length,
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IN EFI_CPU_FLUSH_TYPE FlushType
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)
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/*++
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Routine Description:
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This routine would provide support for flushing the CPU data cache.
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In the case of UNIX emulation environment, this flushing is not necessary and
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is thus not implemented.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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Start adddress in memory to flush
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Length of memory to flush
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Flush type
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Returns:
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Status
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EFI_SUCCESS
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--*/
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// TODO: This - add argument and description to function comment
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// TODO: FlushType - add argument and description to function comment
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// TODO: EFI_UNSUPPORTED - add return value to function comment
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{
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if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {
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//
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// Only WB flush is supported. We actually need do nothing on UNIX emulator
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// environment. Classify this to follow EFI spec
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//
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return EFI_SUCCESS;
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}
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//
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// Other flush types are not supported by UNIX emulator
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//
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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UnixEnableInterrupt (
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IN EFI_CPU_ARCH_PROTOCOL *This
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)
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/*++
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Routine Description:
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This routine provides support for emulation of the interrupt enable of the
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the system. For our purposes, CPU enable is just a BOOLEAN that the Timer
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Architectural Protocol observes in order to defer behaviour while in its
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emulated interrupt, or timer tick.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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Returns:
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Status
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EFI_SUCCESS
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--*/
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// TODO: This - add argument and description to function comment
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{
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CPU_ARCH_PROTOCOL_PRIVATE *Private;
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Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
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Private->InterruptState = TRUE;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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UnixDisableInterrupt (
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IN EFI_CPU_ARCH_PROTOCOL *This
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)
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/*++
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Routine Description:
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This routine provides support for emulation of the interrupt disable of the
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the system. For our purposes, CPU enable is just a BOOLEAN that the Timer
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Architectural Protocol observes in order to defer behaviour while in its
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emulated interrupt, or timer tick.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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Returns:
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Status
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EFI_SUCCESS
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--*/
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// TODO: This - add argument and description to function comment
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{
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CPU_ARCH_PROTOCOL_PRIVATE *Private;
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Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
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Private->InterruptState = FALSE;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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UnixGetInterruptState (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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OUT BOOLEAN *State
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)
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/*++
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Routine Description:
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This routine provides support for emulation of the interrupt disable of the
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the system. For our purposes, CPU enable is just a BOOLEAN that the Timer
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Architectural Protocol observes in order to defer behaviour while in its
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emulated interrupt, or timer tick.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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Returns:
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Status
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EFI_SUCCESS
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--*/
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// TODO: This - add argument and description to function comment
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// TODO: State - add argument and description to function comment
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// TODO: EFI_INVALID_PARAMETER - add return value to function comment
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{
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CPU_ARCH_PROTOCOL_PRIVATE *Private;
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if (State == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
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*State = Private->InterruptState;
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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UnixInit (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_CPU_INIT_TYPE InitType
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)
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/*++
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Routine Description:
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This routine would support generation of a CPU INIT. At
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present, this code does not provide emulation.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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INIT Type
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Returns:
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Status
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EFI_UNSUPPORTED - not yet implemented
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--*/
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// TODO: This - add argument and description to function comment
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// TODO: InitType - add argument and description to function comment
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{
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CPU_ARCH_PROTOCOL_PRIVATE *Private;
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Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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UnixRegisterInterruptHandler (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_EXCEPTION_TYPE InterruptType,
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IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
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)
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/*++
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Routine Description:
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This routine would support registration of an interrupt handler. At
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present, this code does not provide emulation.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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Pointer to interrupt handlers
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Interrupt type
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Returns:
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Status
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EFI_UNSUPPORTED - not yet implemented
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--*/
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// TODO: This - add argument and description to function comment
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// TODO: InterruptType - add argument and description to function comment
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// TODO: InterruptHandler - add argument and description to function comment
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{
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CPU_ARCH_PROTOCOL_PRIVATE *Private;
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//
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// Do parameter checking for EFI spec conformance
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//
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if (InterruptType < 0 || InterruptType > 0xff) {
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return EFI_UNSUPPORTED;
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}
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//
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// Do nothing for Nt32 emulation
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//
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Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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UnixGetTimerValue (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN UINT32 TimerIndex,
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OUT UINT64 *TimerValue,
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OUT UINT64 *TimerPeriod OPTIONAL
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)
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/*++
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Routine Description:
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This routine would support querying of an on-CPU timer. At present,
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this code does not provide timer emulation.
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Arguments:
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This - Pointer to CPU Architectural Protocol interface
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TimerIndex - Index of given CPU timer
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TimerValue - Output of the timer
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TimerPeriod - Output of the timer period
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Returns:
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EFI_UNSUPPORTED - not yet implemented
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EFI_INVALID_PARAMETER - TimeValue is NULL
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--*/
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{
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if (TimerValue == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// No timer supported
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//
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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UnixSetMemoryAttributes (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes
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)
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/*++
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Routine Description:
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This routine would support querying of an on-CPU timer. At present,
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this code does not provide timer emulation.
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Arguments:
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Pointer to CPU Architectural Protocol interface
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Start address of memory region
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The size in bytes of the memory region
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The bit mask of attributes to set for the memory region
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Returns:
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Status
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EFI_UNSUPPORTED - not yet implemented
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--*/
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// TODO: This - add argument and description to function comment
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// TODO: BaseAddress - add argument and description to function comment
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// TODO: Length - add argument and description to function comment
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// TODO: Attributes - add argument and description to function comment
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// TODO: EFI_INVALID_PARAMETER - add return value to function comment
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{
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CPU_ARCH_PROTOCOL_PRIVATE *Private;
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//
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// Check for invalid parameter for Spec conformance
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//
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if (Length == 0) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Do nothing for Nt32 emulation
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//
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Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);
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return EFI_UNSUPPORTED;
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}
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VOID
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CpuUpdateDataHub (
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VOID
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)
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/*++
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Routine Description:
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This function will log processor version and frequency data to data hub.
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Arguments:
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Event - Event whose notification function is being invoked.
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Context - Pointer to the notification function's context.
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Returns:
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None.
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--*/
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{
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EFI_STATUS Status;
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EFI_CPU_DATA_RECORD_BUFFER RecordBuffer;
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UINT32 HeaderSize;
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UINT32 TotalSize;
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EFI_DATA_HUB_PROTOCOL *DataHub;
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EFI_HII_HANDLE HiiHandle;
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//
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// Locate DataHub protocol.
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//
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Status = gBS->LocateProtocol (&gEfiDataHubProtocolGuid, NULL, &DataHub);
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if (EFI_ERROR (Status)) {
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return;
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}
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//
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// Initialize data record header
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//
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mCpuDataRecordHeader.Instance = 1;
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HeaderSize = sizeof (EFI_SUBCLASS_TYPE1_HEADER);
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RecordBuffer.Raw = AllocatePool (HeaderSize + EFI_CPU_DATA_MAXIMUM_LENGTH);
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if (RecordBuffer.Raw == NULL) {
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return ;
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}
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//
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// Initialize strings to HII database
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//
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HiiLibAddPackages (1, &gEfiProcessorProducerGuid, NULL, &HiiHandle, CpuStrings);
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CopyMem (RecordBuffer.Raw, &mCpuDataRecordHeader, HeaderSize);
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RecordBuffer.DataRecord->DataRecordHeader.RecordType = ProcessorVersionRecordType;
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RecordBuffer.DataRecord->VariableRecord.ProcessorVersion = STRING_TOKEN (STR_INTEL_GENUINE_PROCESSOR);
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TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_VERSION_DATA);
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Status = DataHub->LogData (
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DataHub,
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&gEfiProcessorSubClassGuid,
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&gEfiProcessorProducerGuid,
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EFI_DATA_RECORD_CLASS_DATA,
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RecordBuffer.Raw,
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TotalSize
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);
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//
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// Store CPU frequency data record to data hub - It's an emulator so make up a value
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//
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RecordBuffer.DataRecord->DataRecordHeader.RecordType = ProcessorCoreFrequencyRecordType;
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RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Value = 1234;
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RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Exponent = 6;
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TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_CORE_FREQUENCY_DATA);
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Status = DataHub->LogData (
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DataHub,
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&gEfiProcessorSubClassGuid,
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&gEfiProcessorProducerGuid,
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EFI_DATA_RECORD_CLASS_DATA,
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RecordBuffer.Raw,
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TotalSize
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);
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FreePool (RecordBuffer.Raw);
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}
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EFI_STATUS
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EFIAPI
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InitializeCpu (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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/*++
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Routine Description:
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Initialize the state information for the CPU Architectural Protocol
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Arguments:
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ImageHandle of the loaded driver
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Pointer to the System Table
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Returns:
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Status
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EFI_SUCCESS - protocol instance can be published
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EFI_OUT_OF_RESOURCES - cannot allocate protocol data structure
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EFI_DEVICE_ERROR - cannot create the thread
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--*/
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// TODO: SystemTable - add argument and description to function comment
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{
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EFI_STATUS Status;
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CpuUpdateDataHub ();
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mCpuTemplate.Handle,
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&gEfiCpuArchProtocolGuid, &mCpuTemplate.Cpu,
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&gEfiCpuIoProtocolGuid, &mCpuTemplate.CpuIo,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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DEBUG ((EFI_D_ERROR, "CPU Architectural Protocol Loaded\n"));
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return Status;
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}
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