ArmPlatformPkg/ArmPlatformLib: Move the UEFI memory partionning to MemoryInitPei

Formerly, each platform was responsible to declare the location of its UEFI memory
region (used by PEI and DXE Foundations).
The ArmPlatformLib was also declaring every region of its partitionned system memory
with a System Resource HOB.
    
In this new model, the MemoryInit expects the system memory to be declared with the
PCDs gArmTokenSpaceGuid.PcdSystemMemoryBase/Size.
These PCDs declare the largest continuous DRAM region. Additional regions can be
declared with the ArmPLatformLib function ArmPlatformGetAdditionalSystemMemory().
    
Now, it is the PEIM that partitions the system memory for every platform. It installs
a region of the size PcdSystemMemoryUefiRegionSize (default 128MB) for the PEI permanent
memory at the top of the DRAM region.
And a region of gArmPlatformTokenSpaceGuid.PcdSystemMemoryFixRegionSize (default 128MB)
is declared at the base of the system memory. This region is used for the allocation that
requires fixed address or have some constraints on their locations.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11481 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin 2011-03-31 12:21:41 +00:00
parent a534d71480
commit 964680c124
10 changed files with 157 additions and 191 deletions

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@ -94,6 +94,12 @@
gArmTokenSpaceGuid.PcdNormalFdBaseAddress|0|UINT32|0x0000002B
gArmTokenSpaceGuid.PcdNormalFdSize|0|UINT32|0x0000002C
# System Memory (DRAM): These PCDs define the region of in-built system memory
# Some platforms can get DRAM extensions, these additional regions will be declared
# to UEFI by ArmPLatformPlib
gArmTokenSpaceGuid.PcdSystemMemoryBase|0|UINT32|0x00000029
gArmTokenSpaceGuid.PcdSystemMemorySize|0|UINT32|0x0000002A
#
# ARM MPCore MailBox PCDs
#

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@ -55,3 +55,9 @@
# Stack for CPU Cores in Non Secure Mode
gArmPlatformTokenSpaceGuid.PcdCPUCoresNonSecStackBase|0|UINT32|0x00000008
gArmPlatformTokenSpaceGuid.PcdCPUCoresNonSecStackSize|0|UINT32|0x00000009
# Size of the region used by UEFI in permanent memory (Reserved 128MB by default)
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x08000000|UINT32|0x00000015
# Size of the region reserved for fixed address allocations (Reserved 128MB by default)
gArmPlatformTokenSpaceGuid.PcdSystemMemoryFixRegionSize|0x08000000|UINT32|0x00000014

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@ -326,6 +326,13 @@
gArmTokenSpaceGuid.PcdNormalFdBaseAddress|0x40050000 # Must be equal to gEmbeddedTokenSpaceGuid.PcdFlashFvMainBase
gArmTokenSpaceGuid.PcdNormalFdSize|0x00100000 # Must be equal to gEmbeddedTokenSpaceGuid.PcdFlashFvMainSize
# System Memory (256MB)
gArmTokenSpaceGuid.PcdSystemMemoryBase|0x70000000
gArmTokenSpaceGuid.PcdSystemMemorySize|0x10000000
# Size of the region used by UEFI in permanent memory (Reserved 64MB)
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000
gEmbeddedTokenSpaceGuid.PcdTimerPeriod|100000 # expressed in 100ns units, 100,000 x 100 ns = 10,000,000 ns = 10 ms
#

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@ -330,6 +330,13 @@
gArmTokenSpaceGuid.PcdNormalFdBaseAddress|0x40050000 # Must be equal to gEmbeddedTokenSpaceGuid.PcdFlashFvMainBase
gArmTokenSpaceGuid.PcdNormalFdSize|0x00100000 # Must be equal to gEmbeddedTokenSpaceGuid.PcdFlashFvMainSize
# System Memory (256MB)
gArmTokenSpaceGuid.PcdSystemMemoryBase|0x70000000
gArmTokenSpaceGuid.PcdSystemMemorySize|0x10000000
# Size of the region used by UEFI in permanent memory (Reserved 64MB)
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000
gEmbeddedTokenSpaceGuid.PcdTimerPeriod|100000 # expressed in 100ns units, 100,000 x 100 ns = 10,000,000 ns = 10 ms
#

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@ -24,26 +24,6 @@
#define DDR_ATTRIBUTES_SECURE_CACHED ARM_MEMORY_REGION_ATTRIBUTE_SECURE_WRITE_BACK
#define DDR_ATTRIBUTES_SECURE_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_SECURE_UNCACHED_UNBUFFERED
/**
Return the information about the memory region in permanent memory used by PEI
One of the PEI Module must install the permament memory used by PEI. This function returns the
information about this region for your platform to this PEIM module.
@param[out] PeiMemoryBase Base of the memory region used by PEI core and modules
@param[out] PeiMemorySize Size of the memory region used by PEI core and modules
**/
VOID ArmPlatformGetPeiMemory (
OUT UINTN* PeiMemoryBase,
OUT UINTN* PeiMemorySize
) {
ASSERT((PeiMemoryBase != NULL) && (PeiMemorySize != NULL));
*PeiMemoryBase = ARM_EB_DRAM_BASE + ARM_EB_EFI_FIX_ADDRESS_REGION_SZ;
*PeiMemorySize = ARM_EB_EFI_MEMORY_REGION_SZ;
}
/**
Return the Virtual Memory Map of your platform
@ -136,67 +116,9 @@ VOID ArmPlatformGetVirtualMemoryMap(ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemory
EFI Memory region. This array must be ended by a zero-filled entry
**/
VOID ArmPlatformGetEfiMemoryMap (
EFI_STATUS
ArmPlatformGetAdditionalSystemMemory (
OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
) {
EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
UINT64 MemoryBase;
UINTN Index = 0;
ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR *EfiMemoryTable;
ASSERT(EfiMemoryMap != NULL);
EfiMemoryTable = (ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(sizeof(ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR) * 6);
Attributes =
(
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_TESTED
);
MemoryBase = ARM_EB_DRAM_BASE;
// Memory Reserved for fixed address allocations (such as Exception Vector Table)
EfiMemoryTable[Index].ResourceAttribute = Attributes;
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = ARM_EB_EFI_FIX_ADDRESS_REGION_SZ;
MemoryBase += ARM_EB_EFI_FIX_ADDRESS_REGION_SZ;
// Memory declared to PEI as permanent memory for PEI and DXE
EfiMemoryTable[++Index].ResourceAttribute = Attributes;
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = ARM_EB_EFI_MEMORY_REGION_SZ;
MemoryBase += ARM_EB_EFI_MEMORY_REGION_SZ;
// We must reserve the memory used by the Firmware Volume copied in DRAM at 0x80000000
if (FeaturePcdGet(PcdStandalone) == FALSE) {
// Chunk between the EFI Memory region and the firmware
EfiMemoryTable[++Index].ResourceAttribute = Attributes;
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = PcdGet32(PcdNormalFdBaseAddress) - MemoryBase;
// Chunk reserved by the firmware in DRAM
EfiMemoryTable[++Index].ResourceAttribute = Attributes & (~EFI_RESOURCE_ATTRIBUTE_PRESENT);
EfiMemoryTable[Index].PhysicalStart = PcdGet32(PcdNormalFdBaseAddress);
EfiMemoryTable[Index].NumberOfBytes = PcdGet32(PcdNormalFdSize);
MemoryBase = PcdGet32(PcdNormalFdBaseAddress) + PcdGet32(PcdNormalFdSize);
}
// We allocate all the remain memory as untested system memory
EfiMemoryTable[++Index].ResourceAttribute = Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED);
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = ARM_EB_DRAM_SZ - (MemoryBase-ARM_EB_DRAM_BASE);
EfiMemoryTable[++Index].ResourceAttribute = 0;
EfiMemoryTable[Index].PhysicalStart = 0;
EfiMemoryTable[Index].NumberOfBytes = 0;
*EfiMemoryMap = EfiMemoryTable;
return EFI_UNSUPPORTED;
}

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@ -366,6 +366,11 @@
gArmPlatformTokenSpaceGuid.PcdCPUCoresNonSecStackSize|0x00020000 # Stack for each of the 4 CPU cores
gArmPlatformTokenSpaceGuid.PcdPeiServicePtrAddr|0x48020004 # pei services ptr just above stack. Overlapped with the stack of CoreId 1
# System Memory (1GB)
gArmTokenSpaceGuid.PcdSystemMemoryBase|0x60000000
gArmTokenSpaceGuid.PcdSystemMemorySize|0x40000000
gEmbeddedTokenSpaceGuid.PcdTimerPeriod|100000 # expressed in 100ns units, 100,000 x 100 ns = 10,000,000 ns = 10 ms
#

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@ -24,26 +24,6 @@
#define DDR_ATTRIBUTES_SECURE_CACHED ARM_MEMORY_REGION_ATTRIBUTE_SECURE_WRITE_BACK
#define DDR_ATTRIBUTES_SECURE_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_SECURE_UNCACHED_UNBUFFERED
/**
Return the information about the memory region in permanent memory used by PEI
One of the PEI Module must install the permament memory used by PEI. This function returns the
information about this region for your platform to this PEIM module.
@param[out] PeiMemoryBase Base of the memory region used by PEI core and modules
@param[out] PeiMemorySize Size of the memory region used by PEI core and modules
**/
VOID ArmPlatformGetPeiMemory (
OUT UINTN* PeiMemoryBase,
OUT UINTN* PeiMemorySize
) {
ASSERT((PeiMemoryBase != NULL) && (PeiMemorySize != NULL));
*PeiMemoryBase = ARM_VE_DRAM_BASE + ARM_VE_EFI_FIX_ADDRESS_REGION_SZ;
*PeiMemorySize = ARM_VE_EFI_MEMORY_REGION_SZ;
}
/**
Return the Virtual Memory Map of your platform
@ -146,67 +126,10 @@ VOID ArmPlatformGetVirtualMemoryMap(ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemory
EFI Memory region. This array must be ended by a zero-filled entry
**/
VOID ArmPlatformGetEfiMemoryMap (
OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
) {
EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
UINT64 MemoryBase;
UINTN Index = 0;
ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR *EfiMemoryTable;
ASSERT(EfiMemoryMap != NULL);
EfiMemoryTable = (ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(sizeof(ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR) * 6);
Attributes =
(
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_TESTED
);
MemoryBase = ARM_VE_DRAM_BASE;
// Memory Reserved for fixed address allocations (such as Exception Vector Table)
EfiMemoryTable[Index].ResourceAttribute = Attributes;
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = ARM_VE_EFI_FIX_ADDRESS_REGION_SZ;
MemoryBase += ARM_VE_EFI_FIX_ADDRESS_REGION_SZ;
// Memory declared to PEI as permanent memory for PEI and DXE
EfiMemoryTable[++Index].ResourceAttribute = Attributes;
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = ARM_VE_EFI_MEMORY_REGION_SZ;
MemoryBase += ARM_VE_EFI_MEMORY_REGION_SZ;
// We must reserve the memory used by the Firmware Volume copied in DRAM at 0x80000000
if (FeaturePcdGet(PcdStandalone) == FALSE) {
// Chunk between the EFI Memory region and the firmware
EfiMemoryTable[++Index].ResourceAttribute = Attributes;
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = PcdGet32(PcdNormalFdBaseAddress) - MemoryBase;
// Chunk reserved by the firmware in DRAM
EfiMemoryTable[++Index].ResourceAttribute = Attributes & (~EFI_RESOURCE_ATTRIBUTE_PRESENT);
EfiMemoryTable[Index].PhysicalStart = PcdGet32(PcdNormalFdBaseAddress);
EfiMemoryTable[Index].NumberOfBytes = PcdGet32(PcdNormalFdSize);
MemoryBase = PcdGet32(PcdNormalFdBaseAddress) + PcdGet32(PcdNormalFdSize);
}
// We allocate all the remain memory as untested system memory
EfiMemoryTable[++Index].ResourceAttribute = Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED);
EfiMemoryTable[Index].PhysicalStart = MemoryBase;
EfiMemoryTable[Index].NumberOfBytes = ARM_VE_DRAM_SZ - (MemoryBase-ARM_VE_DRAM_BASE);
EfiMemoryTable[++Index].ResourceAttribute = 0;
EfiMemoryTable[Index].PhysicalStart = 0;
EfiMemoryTable[Index].NumberOfBytes = 0;
*EfiMemoryMap = EfiMemoryTable;
EFI_STATUS
ArmPlatformGetAdditionalSystemMemory (
OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
)
{
return EFI_UNSUPPORTED;
}

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@ -170,8 +170,9 @@ VOID ArmPlatformGetVirtualMemoryMap (
EFI Memory region. This array must be ended by a zero-filled entry
**/
VOID ArmPlatformGetEfiMemoryMap (
OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
);
EFI_STATUS
ArmPlatformGetAdditionalSystemMemory (
OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
);
#endif

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@ -32,6 +32,7 @@
#include <Library/PeiServicesLib.h>
#include <Library/ArmLib.h>
#include <Library/IoLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/ArmPlatformLib.h>
//
@ -90,12 +91,6 @@ BuildMemoryTypeInformationHob (
BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
}
EFI_STATUS
EFIAPI
InitializeMemory (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
@ -112,43 +107,129 @@ Returns:
Status - EFI_SUCCESS if the boot mode could be set
--*/
EFI_STATUS
EFIAPI
InitializeMemory (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR* EfiMemoryMap;
UINTN PeiMemoryBase;
UINTN PeiMemorySize;
UINTN Index;
EFI_STATUS Status;
EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR* EfiMemoryMap;
UINTN Index;
UINTN SystemMemoryTop;
UINTN UefiMemoryBase;
UINTN UefiMemorySize;
DEBUG ((EFI_D_ERROR, "Memory Init PEIM Loaded\n"));
// If it is not a standalone version, then we need to initialize the System Memory
// In case of a standalone version, the DRAM is already initialized
// Ensure PcdSystemMemorySize has been set
ASSERT (FixedPcdGet32 (PcdSystemMemorySize) != 0);
SystemMemoryTop = FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemorySize);
//
// Initialize the System Memory (DRAM)
//
if (FeaturePcdGet(PcdStandalone)) {
// Initialize the System Memory controller (DRAM)
// In case of a standalone version, the DRAM is already initialized
ArmPlatformInitializeSystemMemory();
}
// Install the Memory to PEI
ArmPlatformGetPeiMemory (&PeiMemoryBase,&PeiMemorySize);
Status = PeiServicesInstallPeiMemory (PeiMemoryBase,PeiMemorySize);
//
// Declare the UEFI memory to PEI
//
if (FeaturePcdGet(PcdStandalone)) {
// In case of standalone UEFI, we set the UEFI memory region at the top of the DRAM
UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
} else {
// In case of a non standalone UEFI, we set the UEFI memory below the Firmware Volume
UefiMemoryBase = FixedPcdGet32 (PcdNormalFdBaseAddress) - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
}
UefiMemorySize = FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
Status = PeiServicesInstallPeiMemory (UefiMemoryBase,UefiMemorySize);
ASSERT_EFI_ERROR (Status);
//
// Now, the permanent memory has been installed, we can call AllocatePages()
//
Attributes = (
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_TESTED
);
ArmPlatformGetEfiMemoryMap (&EfiMemoryMap);
// If it is not a standalone build we must reserved the space above the base address of the firmware volume
if (!FeaturePcdGet(PcdStandalone)) {
// Check if firmware volume has not be copied at the top of DRAM then we must reserve the extra space
// between the firmware and the top
if (SystemMemoryTop != FixedPcdGet32 (PcdNormalFdBaseAddress) + FixedPcdGet32 (PcdNormalFdSize)) {
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED),
FixedPcdGet32 (PcdNormalFdBaseAddress) + FixedPcdGet32 (PcdNormalFdSize),
SystemMemoryTop - (FixedPcdGet32 (PcdNormalFdBaseAddress) + FixedPcdGet32 (PcdNormalFdSize))
);
}
// Install the EFI Memory Map
for (Index = 0; EfiMemoryMap[Index].ResourceAttribute != 0; Index++) {
// Reserved the memory space occupied by the firmware volume
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
EfiMemoryMap[Index].ResourceAttribute,
EfiMemoryMap[Index].PhysicalStart,
EfiMemoryMap[Index].NumberOfBytes
Attributes & (~EFI_RESOURCE_ATTRIBUTE_PRESENT),
(UINT32)FixedPcdGet32 (PcdNormalFdBaseAddress),
(UINT32)FixedPcdGet32 (PcdNormalFdSize)
);
}
// Check there is no overlap between UEFI and Fix Address Regions
ASSERT (FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize) <= UefiMemoryBase);
// Reserved the UEFI Memory Region
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
Attributes,
UefiMemoryBase,
UefiMemorySize
);
// Reserved the Fix Address Region
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
Attributes,
FixedPcdGet32 (PcdSystemMemoryBase),
FixedPcdGet32 (PcdSystemMemoryFixRegionSize)
);
// Reserved the memory between UEFI and Fix Address regions
if (FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize) != UefiMemoryBase) {
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED),
FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize),
UefiMemoryBase - (FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemoryFixRegionSize))
);
}
// If a platform has system memory extensions, it can declare those in this function
Status = ArmPlatformGetAdditionalSystemMemory (&EfiMemoryMap);
if (!EFI_ERROR(Status)) {
// Install the EFI Memory Map
for (Index = 0; EfiMemoryMap[Index].ResourceAttribute != 0; Index++) {
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
EfiMemoryMap[Index].ResourceAttribute,
EfiMemoryMap[Index].PhysicalStart,
EfiMemoryMap[Index].NumberOfBytes
);
}
FreePool (EfiMemoryMap);
}
// Build Memory Allocation Hob
InitMmu ();
@ -157,5 +238,5 @@ Returns:
BuildMemoryTypeInformationHob ();
}
return Status;
return EFI_SUCCESS;
}

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@ -54,6 +54,14 @@
gArmPlatformTokenSpaceGuid.PcdStandalone
[FixedPcd]
gArmTokenSpaceGuid.PcdNormalFdBaseAddress
gArmTokenSpaceGuid.PcdNormalFdSize
gArmTokenSpaceGuid.PcdSystemMemoryBase
gArmTokenSpaceGuid.PcdSystemMemorySize
gArmPlatformTokenSpaceGuid.PcdSystemMemoryFixRegionSize
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS
gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType