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audk/IntelFspWrapperPkg/Library/PeiFspHobProcessLibSample/FspHobProcessLibSample.c

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/** @file
Sample to provide FSP hob process related function.
Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiPei.h>
#include <Library/PeiServicesLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/HobLib.h>
#include <Library/PcdLib.h>
#include <Library/FspPlatformInfoLib.h>
#include <Guid/GuidHobFspEas.h>
#include <Guid/MemoryTypeInformation.h>
#include <Guid/PcdDataBaseHobGuid.h>
#include <Ppi/Capsule.h>
//
// Additional pages are used by DXE memory manager.
// It should be consistent between RetrieveRequiredMemorySize() and GetPeiMemSize()
//
#define PEI_ADDITIONAL_MEMORY_SIZE (16 * EFI_PAGE_SIZE)
/**
Get the mem size in memory type infromation table.
@param[in] PeiServices PEI Services table.
@return the mem size in memory type infromation table.
**/
UINT64
GetMemorySizeInMemoryTypeInformation (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_MEMORY_TYPE_INFORMATION *MemoryData;
UINT8 Index;
UINTN TempPageNum;
MemoryData = NULL;
(*PeiServices)->GetHobList ((CONST EFI_PEI_SERVICES**)PeiServices, (VOID **) &Hob.Raw);
while (!END_OF_HOB_LIST (Hob)) {
if (Hob.Header->HobType == EFI_HOB_TYPE_GUID_EXTENSION &&
CompareGuid (&Hob.Guid->Name, &gEfiMemoryTypeInformationGuid)) {
MemoryData = (EFI_MEMORY_TYPE_INFORMATION *) (Hob.Raw + sizeof (EFI_HOB_GENERIC_HEADER) + sizeof (EFI_GUID));
break;
}
Hob.Raw = GET_NEXT_HOB (Hob);
}
if (MemoryData == NULL) {
return 0;
}
TempPageNum = 0;
for (Index = 0; MemoryData[Index].Type != EfiMaxMemoryType; Index++) {
//
// Accumulate default memory size requirements
//
TempPageNum += MemoryData[Index].NumberOfPages;
}
return TempPageNum * EFI_PAGE_SIZE;
}
/**
Get the mem size need to be reserved in PEI phase.
@param[in] PeiServices PEI Services table.
@return the mem size need to be reserved in PEI phase.
**/
UINT64
RetrieveRequiredMemorySize (
IN EFI_PEI_SERVICES **PeiServices
)
{
UINT64 Size;
Size = GetMemorySizeInMemoryTypeInformation (PeiServices);
return Size + PEI_ADDITIONAL_MEMORY_SIZE;
}
/**
Get the mem size need to be consumed and reserved in PEI phase.
@param[in] PeiServices PEI Services table.
@param[in] BootMode Current boot mode.
@return the mem size need to be consumed and reserved in PEI phase.
**/
UINT64
GetPeiMemSize (
IN EFI_PEI_SERVICES **PeiServices,
IN UINT32 BootMode
)
{
UINT64 Size;
UINT64 MinSize;
if (BootMode == BOOT_IN_RECOVERY_MODE) {
return PcdGet32 (PcdPeiRecoveryMinMemSize);
}
Size = GetMemorySizeInMemoryTypeInformation (PeiServices);
if (BootMode == BOOT_ON_FLASH_UPDATE) {
//
// Maybe more size when in CapsuleUpdate phase ?
//
MinSize = PcdGet32 (PcdPeiMinMemSize);
} else {
MinSize = PcdGet32 (PcdPeiMinMemSize);
}
return MinSize + Size + PEI_ADDITIONAL_MEMORY_SIZE;
}
/**
BIOS process FspBobList for Memory Resource Descriptor.
@param[in] FspHobList Pointer to the HOB data structure produced by FSP.
@return If platform process the FSP hob list successfully.
**/
EFI_STATUS
EFIAPI
FspHobProcessForMemoryResource (
IN VOID *FspHobList
)
{
EFI_PEI_HOB_POINTERS Hob;
UINT64 LowMemorySize;
UINT64 FspMemorySize;
EFI_PHYSICAL_ADDRESS FspMemoryBase;
UINT64 PeiMemSize;
EFI_PHYSICAL_ADDRESS PeiMemBase;
UINT64 S3PeiMemSize;
EFI_PHYSICAL_ADDRESS S3PeiMemBase;
BOOLEAN FoundFspMemHob;
EFI_STATUS Status;
EFI_BOOT_MODE BootMode;
EFI_PEI_CAPSULE_PPI *Capsule;
VOID *CapsuleBuffer;
UINTN CapsuleBufferLength;
UINT64 RequiredMemSize;
EFI_PEI_SERVICES **PeiServices;
PeiServices = (EFI_PEI_SERVICES **)GetPeiServicesTablePointer ();
PeiServicesGetBootMode (&BootMode);
PeiMemBase = 0;
LowMemorySize = 0;
FspMemorySize = 0;
FspMemoryBase = 0;
FoundFspMemHob = FALSE;
//
// Parse the hob list from fsp
// Report all the resource hob except the memory between 1M and 4G
//
Hob.Raw = (UINT8 *)(UINTN)FspHobList;
DEBUG((DEBUG_INFO, "FspHobList - 0x%x\n", FspHobList));
while ((Hob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, Hob.Raw)) != NULL) {
DEBUG((DEBUG_INFO, "\nResourceType: 0x%x\n", Hob.ResourceDescriptor->ResourceType));
if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) ||
(Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED)) {
DEBUG((DEBUG_INFO, "ResourceAttribute: 0x%x\n", Hob.ResourceDescriptor->ResourceAttribute));
DEBUG((DEBUG_INFO, "PhysicalStart: 0x%x\n", Hob.ResourceDescriptor->PhysicalStart));
DEBUG((DEBUG_INFO, "ResourceLength: 0x%x\n", Hob.ResourceDescriptor->ResourceLength));
DEBUG((DEBUG_INFO, "Owner: %g\n\n", &Hob.ResourceDescriptor->Owner));
}
if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) // Found the low memory length below 4G
&& (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB)
&& (Hob.ResourceDescriptor->PhysicalStart + Hob.ResourceDescriptor->ResourceLength <= BASE_4GB)) {
LowMemorySize += Hob.ResourceDescriptor->ResourceLength;
Hob.Raw = GET_NEXT_HOB (Hob);
continue;
}
if ((Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_MEMORY_RESERVED) // Found the low memory length below 4G
&& (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB)
&& (Hob.ResourceDescriptor->PhysicalStart + Hob.ResourceDescriptor->ResourceLength <= BASE_4GB)
&& (CompareGuid (&Hob.ResourceDescriptor->Owner, &gFspReservedMemoryResourceHobGuid))) {
FoundFspMemHob = TRUE;
FspMemoryBase = Hob.ResourceDescriptor->PhysicalStart;
FspMemorySize = Hob.ResourceDescriptor->ResourceLength;
DEBUG((DEBUG_INFO, "Find fsp mem hob, base 0x%x, len 0x%x\n", FspMemoryBase, FspMemorySize));
}
//
// Report the resource hob
//
BuildResourceDescriptorHob (
Hob.ResourceDescriptor->ResourceType,
Hob.ResourceDescriptor->ResourceAttribute,
Hob.ResourceDescriptor->PhysicalStart,
Hob.ResourceDescriptor->ResourceLength
);
Hob.Raw = GET_NEXT_HOB (Hob);
}
if (!FoundFspMemHob) {
DEBUG((DEBUG_INFO, "Didn't find the fsp used memory information.\n"));
//ASSERT(FALSE);
}
DEBUG((DEBUG_INFO, "LowMemorySize: 0x%x.\n", LowMemorySize));
DEBUG((DEBUG_INFO, "FspMemoryBase: 0x%x.\n", FspMemoryBase));
DEBUG((DEBUG_INFO, "FspMemorySize: 0x%x.\n", FspMemorySize));
if (BootMode == BOOT_ON_S3_RESUME) {
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
(
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
// EFI_RESOURCE_ATTRIBUTE_TESTED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
),
BASE_1MB,
LowMemorySize
);
S3PeiMemBase = 0;
S3PeiMemSize = 0;
Status = GetS3MemoryInfo (&S3PeiMemSize, &S3PeiMemBase);
ASSERT_EFI_ERROR (Status);
DEBUG((DEBUG_INFO, "S3 memory %Xh - %Xh bytes\n", S3PeiMemBase, S3PeiMemSize));
//
// Make sure Stack and PeiMemory are not overlap
//
Status = PeiServicesInstallPeiMemory (
S3PeiMemBase,
S3PeiMemSize
);
ASSERT_EFI_ERROR (Status);
} else {
PeiMemSize = GetPeiMemSize (PeiServices, BootMode);
DEBUG((DEBUG_INFO, "PEI memory size = %Xh bytes\n", PeiMemSize));
//
// Capsule mode
//
Capsule = NULL;
CapsuleBuffer = NULL;
CapsuleBufferLength = 0;
if (BootMode == BOOT_ON_FLASH_UPDATE) {
Status = PeiServicesLocatePpi (
&gEfiPeiCapsulePpiGuid,
0,
NULL,
(VOID **) &Capsule
);
ASSERT_EFI_ERROR (Status);
if (Status == EFI_SUCCESS) {
//
// Make sure Stack and CapsuleBuffer are not overlap
//
CapsuleBuffer = (VOID *)(UINTN)BASE_1MB;
CapsuleBufferLength = (UINTN)(LowMemorySize - PeiMemSize);
//
// Call the Capsule PPI Coalesce function to coalesce the capsule data.
//
Status = Capsule->Coalesce (PeiServices, &CapsuleBuffer, &CapsuleBufferLength);
}
}
RequiredMemSize = RetrieveRequiredMemorySize (PeiServices);
DEBUG((DEBUG_INFO, "Required memory size = %Xh bytes\n", RequiredMemSize));
//
// Report the main memory
//
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
(
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
EFI_RESOURCE_ATTRIBUTE_TESTED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
),
BASE_1MB,
LowMemorySize
);
//
// Make sure Stack and CapsuleBuffer are not overlap
//
//
// Install efi memory
//
PeiMemBase = BASE_1MB + LowMemorySize - PeiMemSize;
Status = PeiServicesInstallPeiMemory (
PeiMemBase,
PeiMemSize - RequiredMemSize
);
ASSERT_EFI_ERROR (Status);
if (Capsule != NULL) {
Status = Capsule->CreateState (PeiServices, CapsuleBuffer, CapsuleBufferLength);
}
}
return EFI_SUCCESS;
}
/**
Process FSP HOB list
@param[in] FspHobList Pointer to the HOB data structure produced by FSP.
**/
VOID
ProcessFspHobList (
IN VOID *FspHobList
)
{
EFI_PEI_HOB_POINTERS FspHob;
FspHob.Raw = FspHobList;
//
// Add all the HOBs from FSP binary to FSP wrapper
//
while (!END_OF_HOB_LIST (FspHob)) {
if (FspHob.Header->HobType == EFI_HOB_TYPE_GUID_EXTENSION) {
//
// Skip FSP binary creates PcdDataBaseHobGuid
//
if (!CompareGuid(&FspHob.Guid->Name, &gPcdDataBaseHobGuid)) {
BuildGuidDataHob (
&FspHob.Guid->Name,
GET_GUID_HOB_DATA(FspHob),
GET_GUID_HOB_DATA_SIZE(FspHob)
);
}
}
FspHob.Raw = GET_NEXT_HOB (FspHob);
}
}
/**
BIOS process FspBobList for other data (not Memory Resource Descriptor).
@param[in] FspHobList Pointer to the HOB data structure produced by FSP.
@return If platform process the FSP hob list successfully.
**/
EFI_STATUS
EFIAPI
FspHobProcessForOtherData (
IN VOID *FspHobList
)
{
ProcessFspHobList (FspHobList);
return EFI_SUCCESS;
}
/**
BIOS process FspBobList.
@param[in] FspHobList Pointer to the HOB data structure produced by FSP.
@return If platform process the FSP hob list successfully.
**/
EFI_STATUS
EFIAPI
FspHobProcess (
IN VOID *FspHobList
)
{
EFI_STATUS Status;
Status = FspHobProcessForMemoryResource (FspHobList);
if (EFI_ERROR (Status)) {
return Status;
}
Status = FspHobProcessForOtherData (FspHobList);
return Status;
}
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