RFC： https://bugzilla.tianocore.org/show_bug.cgi?id=3429
Allocates one or more 4KB pages of given type MemoryType.
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.
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang....@intel.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Signed-off-by: Min Xu <min.m...@intel.com>
---
MdePkg/Include/Library/MemoryAllocationLib.h | 21 +++++++++++++++
.../MemoryAllocationLib.c | 27 +++++++++++++++++++
2 files changed, 48 insertions(+)
diff --git a/MdePkg/Include/Library/MemoryAllocationLib.h
b/MdePkg/Include/Library/MemoryAllocationLib.h
index 65a30cf146dd..2bdc0592ef3e 100644
--- a/MdePkg/Include/Library/MemoryAllocationLib.h
+++ b/MdePkg/Include/Library/MemoryAllocationLib.h
@@ -484,4 +484,25 @@ FreePool (
IN VOID *Buffer
);
+/**
+ Allocates one or more 4KB pages of given type MemoryType.
+
+ 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 MemoryType Type of memory to use for this allocation.
+ @param Pages The number of 4 KB pages to allocate.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+AllocatePagesWithMemoryType (
+ IN UINTN MemoryType,
+ IN UINTN Pages
+ );
+
#endif
diff --git a/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
b/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
index b3f9df74f139..dcb313349729 100644
--- a/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
+++ b/MdePkg/Library/PeiMemoryAllocationLib/MemoryAllocationLib.c
@@ -839,4 +839,31 @@ FreePool (
//
}
+/**
+ Allocates one or more 4KB pages of given type MemoryType.
+ 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 MemoryType Type of memory to use for this allocation.
+ @param Pages The number of 4 KB pages to allocate.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+AllocatePagesWithMemoryType (
+ IN UINTN MemoryType,
+ IN UINTN Pages
+ )
+{
+ if (MemoryType >= EfiMaxMemoryType) {
+ ASSERT (FALSE);
+ return NULL;
+ }
+
+ return InternalAllocatePages (MemoryType, Pages);
+}
--
2.29.2.windows.2
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