IntelFrameworkModulePkg: Add AcpiS3SaveDxe driver
Signed-off-by: jljusten Reviewed-by: rsun3 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12246 6f19259b-4bc3-4df7-8a09-765794883524
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/** @file
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This is an implementation of the AcpiVariable platform field for ECP platform.
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions
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of the BSD License which accompanies this distribution. The
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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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==
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typedef struct {
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EFI_PHYSICAL_ADDRESS AcpiReservedMemoryBase; <<===
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UINT32 AcpiReservedMemorySize; <<===
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EFI_PHYSICAL_ADDRESS S3ReservedLowMemoryBase;
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EFI_PHYSICAL_ADDRESS AcpiBootScriptTable;
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EFI_PHYSICAL_ADDRESS RuntimeScriptTableBase;
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EFI_PHYSICAL_ADDRESS AcpiFacsTable;
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UINT64 SystemMemoryLength; <<===
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ACPI_CPU_DATA_COMPATIBILITY AcpiCpuData;
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EFI_PHYSICAL_ADDRESS VideoOpromAddress;
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UINT32 VideoOpromSize;
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EFI_PHYSICAL_ADDRESS S3DebugBufferAddress;
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EFI_PHYSICAL_ADDRESS S3ResumeNvsEntryPoint;
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} ACPI_VARIABLE_SET_COMPATIBILITY;
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**/
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#include <FrameworkDxe.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/HobLib.h>
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#include <Library/PcdLib.h>
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#include <Library/DebugLib.h>
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#include <Protocol/FrameworkMpService.h>
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#include <Guid/AcpiVariableCompatibility.h>
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#include <Guid/AcpiS3Context.h>
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GLOBAL_REMOVE_IF_UNREFERENCED
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ACPI_VARIABLE_SET_COMPATIBILITY *mAcpiVariableSetCompatibility = NULL;
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/**
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Allocate EfiACPIMemoryNVS below 4G memory address.
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This function allocates EfiACPIMemoryNVS below 4G memory address.
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@param Size Size of memory to allocate.
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@return Allocated address for output.
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**/
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VOID*
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AllocateAcpiNvsMemoryBelow4G (
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IN UINTN Size
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);
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/**
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Hook point for AcpiVariableThunkPlatform for S3Ready.
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@param AcpiS3Context ACPI s3 context
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**/
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VOID
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S3ReadyThunkPlatform (
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IN ACPI_S3_CONTEXT *AcpiS3Context
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)
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{
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EFI_PHYSICAL_ADDRESS AcpiMemoryBase;
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UINT32 AcpiMemorySize;
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EFI_PEI_HOB_POINTERS Hob;
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UINT64 MemoryLength;
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DEBUG ((EFI_D_INFO, "S3ReadyThunkPlatform\n"));
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//
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// Allocate ACPI reserved memory under 4G
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//
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AcpiMemoryBase = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocateAcpiNvsMemoryBelow4G (PcdGet32 (PcdS3AcpiReservedMemorySize));
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ASSERT (AcpiMemoryBase != 0);
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AcpiMemorySize = PcdGet32 (PcdS3AcpiReservedMemorySize);
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//
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// Calculate the system memory length by memory hobs
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//
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MemoryLength = 0x100000;
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Hob.Raw = GetFirstHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR);
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ASSERT (Hob.Raw != NULL);
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while ((Hob.Raw != NULL) && (!END_OF_HOB_LIST (Hob))) {
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if (Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {
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//
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// Skip the memory region below 1MB
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//
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if (Hob.ResourceDescriptor->PhysicalStart >= 0x100000) {
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MemoryLength += Hob.ResourceDescriptor->ResourceLength;
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}
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}
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Hob.Raw = GET_NEXT_HOB (Hob);
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Hob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, Hob.Raw);
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}
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mAcpiVariableSetCompatibility->AcpiReservedMemoryBase = AcpiMemoryBase;
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mAcpiVariableSetCompatibility->AcpiReservedMemorySize = AcpiMemorySize;
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mAcpiVariableSetCompatibility->SystemMemoryLength = MemoryLength;
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DEBUG((EFI_D_INFO, "AcpiVariableThunkPlatform: AcpiMemoryBase is 0x%8x\n", mAcpiVariableSetCompatibility->AcpiReservedMemoryBase));
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DEBUG((EFI_D_INFO, "AcpiVariableThunkPlatform: AcpiMemorySize is 0x%8x\n", mAcpiVariableSetCompatibility->AcpiReservedMemorySize));
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DEBUG((EFI_D_INFO, "AcpiVariableThunkPlatform: SystemMemoryLength is 0x%8x\n", mAcpiVariableSetCompatibility->SystemMemoryLength));
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return ;
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}
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/**
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Hook point for AcpiVariableThunkPlatform for InstallAcpiS3Save.
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**/
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VOID
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InstallAcpiS3SaveThunk (
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VOID
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)
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{
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EFI_STATUS Status;
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FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *FrameworkMpService;
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UINTN VarSize;
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Status = gBS->LocateProtocol (
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&gFrameworkEfiMpServiceProtocolGuid,
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NULL,
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(VOID**) &FrameworkMpService
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);
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if (!EFI_ERROR (Status)) {
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//
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// On ECP platform, if framework CPU drivers are in use, The compatible version of ACPI variable set
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// should be produced by CPU driver.
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//
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VarSize = sizeof (mAcpiVariableSetCompatibility);
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Status = gRT->GetVariable (
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ACPI_GLOBAL_VARIABLE,
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&gEfiAcpiVariableCompatiblityGuid,
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NULL,
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&VarSize,
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&mAcpiVariableSetCompatibility
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);
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ASSERT_EFI_ERROR (Status);
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} else {
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//
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// Allocate/initialize the compatible version of Acpi Variable Set since Framework chipset/platform
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// driver need this variable
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//
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mAcpiVariableSetCompatibility = AllocateAcpiNvsMemoryBelow4G (sizeof(ACPI_VARIABLE_SET_COMPATIBILITY));
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Status = gRT->SetVariable (
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ACPI_GLOBAL_VARIABLE,
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&gEfiAcpiVariableCompatiblityGuid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
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sizeof(mAcpiVariableSetCompatibility),
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&mAcpiVariableSetCompatibility
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);
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ASSERT_EFI_ERROR (Status);
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}
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DEBUG((EFI_D_INFO, "AcpiVariableSetCompatibility is 0x%8x\n", mAcpiVariableSetCompatibility));
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}
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