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UefiPayloadPkg: Add support for Special Purpose memory

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We need to let UEFI know that there are cetain memory types
which are special purpose (CXL/HBM) etc and we may want to
avoid using them for UEFI purposes. Hence UPL needs to know
about such memory types.

Signed-off-by: Dhaval Sharma <dhaval@rivosinc.com>
This commit is contained in:
Dhaval 2024-08-29 10:36:59 +05:30 committed by mergify[bot]
parent 5cd9e7ce87
commit c511663cfa
1 changed files with 5 additions and 0 deletions
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5
UefiPayloadPkg/Library/FdtParserLib/FdtParserLib.c
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@ -236,6 +236,7 @@ ParseReservedMemory (
UNIVERSAL_PAYLOAD_ACPI_TABLE *PlatformAcpiTable;
UNIVERSAL_PAYLOAD_SMBIOS_TABLE *SmbiosTable;
FDT_NODE_HEADER *NodePtr;
UINT32 Attribute;
PlatformAcpiTable = NULL;
@ -273,6 +274,10 @@ ParseReservedMemory (
} else if (AsciiStrnCmp (TempStr, "runtime-data", AsciiStrLen ("runtime-data")) == 0) {
DEBUG ((DEBUG_INFO, " runtime-data"));
BuildMemoryAllocationHob (StartAddress, NumberOfBytes, EfiRuntimeServicesData);
} else if (AsciiStrnCmp (TempStr, "special-purpose", AsciiStrLen ("special-purpose")) == 0) {
Attribute = MEMORY_ATTRIBUTE_DEFAULT | EFI_RESOURCE_ATTRIBUTE_SPECIAL_PURPOSE;
DEBUG ((DEBUG_INFO, " special-purpose memory"));
BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY, Attribute, StartAddress, NumberOfBytes);
} else if (AsciiStrnCmp (TempStr, "acpi", AsciiStrLen ("acpi")) == 0) {
DEBUG ((DEBUG_INFO, " acpi, StartAddress:%x, NumberOfBytes:%x", StartAddress, NumberOfBytes));
BuildMemoryAllocationHob (StartAddress, NumberOfBytes, EfiBootServicesData);