From: Min M Xu <min.m...@intel.com>
AllocateRuntimePages is used to allocate one or more 4KB pages of
type EfiRuntimeServicesData.
Cc: Leif Lindholm <quic_llind...@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Abner Chang <abner.ch...@hpe.com>
Cc: Daniel Schaefer <daniel.schae...@hpe.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Min Xu <min.m...@intel.com>
---
EmbeddedPkg/Include/Library/PrePiLib.h | 19 ++++++
.../MemoryAllocationLib.c | 64 ++++++++++++++-----
2 files changed, 67 insertions(+), 16 deletions(-)
diff --git a/EmbeddedPkg/Include/Library/PrePiLib.h
b/EmbeddedPkg/Include/Library/PrePiLib.h
index 7b2cea296f1c..3741b08c4478 100644
--- a/EmbeddedPkg/Include/Library/PrePiLib.h
+++ b/EmbeddedPkg/Include/Library/PrePiLib.h
@@ -665,6 +665,25 @@ AllocatePages (
IN UINTN Pages
);
+/**
+ Allocates one or more 4KB pages of type EfiRuntimeServicesData.
+
+ Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns
a pointer to the
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If
Pages is 0, then NULL
+ is returned. If there is not enough memory remaining to satisfy the
request, then NULL is
+ returned.
+
+ @param Pages The number of 4 KB pages to allocate.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+AllocateRuntimePages (
+ IN UINTN Pages
+ );
+
/**
Allocates a buffer of type EfiBootServicesData.
diff --git a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
index 78f8da5e9527..9d7b34ad28fa 100644
--- a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
+++ b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
@@ -14,23 +14,11 @@
#include <Library/PrePiLib.h>
#include <Library/DebugLib.h>
-/**
- Allocates one or more 4KB pages of type EfiBootServicesData.
-
- Allocates the number of 4KB pages of MemoryType and returns a pointer to the
- allocated buffer. The buffer returned is aligned on a 4KB boundary. If
Pages is 0, then NULL
- is returned. If there is not enough memory remaining to satisfy the
request, then NULL is
- returned.
-
- @param Pages The number of 4 KB pages to allocate.
-
- @return A pointer to the allocated buffer or NULL if allocation fails.
-
-**/
VOID *
EFIAPI
-AllocatePages (
- IN UINTN Pages
+InternalAllocatePages (
+ IN UINTN Pages,
+ IN EFI_MEMORY_TYPE MemoryType
)
{
EFI_PEI_HOB_POINTERS Hob;
@@ -65,12 +53,56 @@ AllocatePages (
BuildMemoryAllocationHob (
Hob.HandoffInformationTable->EfiFreeMemoryTop,
Pages * EFI_PAGE_SIZE,
- EfiBootServicesData
+ MemoryType
);
return (VOID *)(UINTN)Hob.HandoffInformationTable->EfiFreeMemoryTop;
}
}
+/**
+ Allocates one or more 4KB pages of type EfiBootServicesData.
+
+ Allocates the number of 4KB pages of MemoryType and returns a pointer to the
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If
Pages is 0, then NULL
+ is returned. If there is not enough memory remaining to satisfy the
request, then NULL is
+ returned.
+
+ @param Pages The number of 4 KB pages to allocate.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+AllocatePages (
+ IN UINTN Pages
+ )
+{
+ return InternalAllocatePages (Pages, EfiBootServicesData);
+}
+
+/**
+ Allocates one or more 4KB pages of type EfiRuntimeServicesData.
+
+ Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns
a pointer to the
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If
Pages is 0, then NULL
+ is returned. If there is not enough memory remaining to satisfy the
request, then NULL is
+ returned.
+
+ @param Pages The number of 4 KB pages to allocate.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+AllocateRuntimePages (
+ IN UINTN Pages
+ )
+{
+ return InternalAllocatePages (Pages, EfiRuntimeServicesData);
+}
+
/**
Allocates one or more 4KB pages of type EfiBootServicesData at a specified
alignment.
--
2.29.2.windows.2
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