Tianocore/edk2.git/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c, branch master

EmbeddedPkg: Add missing FreeAlignedPages() implementation

2026-04-21T16:55:40+00:00

The PrePiMemoryAllocationLib supports AllocateAlignedPages(), however is missing the corresponding FreeAlignedPages(). Although the FreeAlignedPages() in PrePiMemoryAllocationLib does not support the ability to free pages in the PrePei Memory Allocator and the allocated memory is lost, it would be good to have an empty implementation of FreeAlignedPages() so that implementations utilises the correct deallocation function. Signed-off-by: Sami Mujawar

EmbeddedPkg/PrePiMemoryAllocationLib: Update memory hob page alignment

2026-02-11T02:10:26+00:00

When allocating Runtime memory the MemoryAllocation HOB's length needs to meet the alignment requirements of Runtime memory. On AARCH64 architectures this alignment is not the default of 4KB. Instead it is set by the RUNTIME_PAGE_ALLOCATION_GRANULARITY definition, which is 64KB. This change enforces the RUNTIME alignment as part of generating the MemoryAllocationHob for runtime memory types. Signed-off-by: Antaeus Kleinert-Strand

EmbeddedPkg: PrePiMemoryAllocationLib: Add AllocateCopyPool

2026-01-15T17:10:46+00:00

ArmVirtPkg uses PrePiMemoryAllocationLib and PeiServicesLib in the same module. PeiServicesLib depends on MemoryAllocationLib, fulfilled by PrePiMemoryAllocationLib in this instance. However, PeiServicesLib uses AllocateCopyPool() which is not provided in PrePiMemoryAllocationLib. CLANGPDB AARCH64 finds this as a link error. Other toolchains are optimizing the call out since that code path is not used in this module. This adds AllocateCopyPool() to PrePiMemoryAllocationLib to satisfy the dependency. Signed-off-by: Oliver Smith-Denny

EmbeddedPkg/PrePiMemoryAllocationLib: Add reserved memory allocations

2025-07-08T07:27:23+00:00

PrePiMemoryAllocationLib does not implement functions to allocate EfiMemoryReservedType. These are implemented in other instances of MemoryAllocationLib (Dxe, Uefi, PiSmmCore, SmmMemory). Add AllocateReservedPages() and AllocateAlignedReservedPages() functions to make it consistent with other MemoryAllocationLib intstances. Signed-off-by: Vishal Oliyil Kunnil

EmbeddedPkg: compiler error due to arithmetic operation on void pointer

2024-02-09T18:12:47+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4668 This commit fixes the issue reported in the BZ4668. The EmbeddedPkg fails to compile with a compiler error generated due to invalid/illegal arithmetic operation on void pointers. It has been fixed by using explicit type conversion of the void pointer to UINTN. Cc: Rebecca Cran Cc: Michael D Kinney Cc: Laszlo Ersek Cc: Leif Lindholm Cc: Ard Biesheuvel Cc: Abner Chang Cc: Jayaprakash N Signed-off-by: Jayaprakash N Reviewed-by: Laszlo Ersek Reviewed-by: Ard Biesheuvel Acked-by: Michael D Kinney

EmbeddedPkg/PrePiMemoryAllocationLib: Add ReallocatePool

2024-01-03T13:43:18+00:00

Add implementation of ReallocatePool which is defined in the MemoryAllocationLib header file to allow components to not need special handling for PrePi module types. Signed-off-by: Jeff Brasen

EmbeddedPkg/PrePi: Check for enough space before aligning heap pointer

2022-09-23T17:58:00+00:00

Update check for enough space to occur prior to alignment offset. This prevents cases where EfiFreeMemoryTop < EfiFreeMemoryBottom. Signed-off-by: Jeff Brasen Reviewed-by: Ard Biesheuvel

EmbeddedPkg: Add AllocateRuntimePages in PrePiMemoryAllocationLib

2022-09-06T07:21:42+00:00

AllocateRuntimePages is used to allocate one or more 4KB pages of type EfiRuntimeServicesData. Cc: Leif Lindholm Cc: Ard Biesheuvel Cc: Abner Chang Cc: Daniel Schaefer Cc: Gerd Hoffmann Reviewed-by: Ard Biesheuvel Acked-by: Gerd Hoffmann Signed-off-by: Min Xu

EmbeddedPkg: Apply uncrustify changes

2021-12-07T17:24:28+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the EmbeddedPkg package Cc: Andrew Fish Cc: Leif Lindholm Cc: Michael D Kinney Signed-off-by: Michael Kubacki Reviewed-by: Andrew Fish

EmbeddedPkg/PrePiMemoryAllocationLib: use correct size for pool hob

2021-01-08T13:37:57+00:00

Use the correct type in the sizeof() expression to calculate the size of the newly allocated EFI_HOB_MEMORY_POOL hob. Link: https://bugzilla.tianocore.org/show_bug.cgi?id=3139 Signed-off-by: Ard Biesheuvel Reviewed-by: Leif Lindholm