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| author | Min M Xu <min.m.xu@intel.com> | 2022-06-22 09:00:23 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-09-06 07:21:42 +0000 |
| commit | fb008dbe01f9d30bba4ff84f1825722644da40be (patch) | |
| tree | 4260abcc967ebea15e41a0093d293550bd6e6143 /EmbeddedPkg | |
| parent | 7cc7c52670684a44f805e593a1f7846b79703820 (diff) | |
| download | edk2-fb008dbe01f9d30bba4ff84f1825722644da40be.tar.gz edk2-fb008dbe01f9d30bba4ff84f1825722644da40be.tar.bz2 edk2-fb008dbe01f9d30bba4ff84f1825722644da40be.zip | |
EmbeddedPkg: Add AllocateRuntimePages in PrePiMemoryAllocationLib
AllocateRuntimePages is used to allocate one or more 4KB pages of
type EfiRuntimeServicesData.
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Abner Chang <abner.chang@hpe.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb+tianocore@kernel.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Diffstat (limited to 'EmbeddedPkg')
| -rw-r--r-- | EmbeddedPkg/Include/Library/PrePiLib.h | 19 | ||||
| -rw-r--r-- | EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c | 65 |
2 files changed, 68 insertions, 16 deletions
diff --git a/EmbeddedPkg/Include/Library/PrePiLib.h b/EmbeddedPkg/Include/Library/PrePiLib.h index 7b2cea296f..3741b08c44 100644 --- a/EmbeddedPkg/Include/Library/PrePiLib.h +++ b/EmbeddedPkg/Include/Library/PrePiLib.h @@ -666,6 +666,25 @@ AllocatePages ( );
/**
+ 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.
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a
diff --git a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c index 78f8da5e95..2cc2a71121 100644 --- a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c +++ b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c @@ -14,23 +14,12 @@ #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.
-
-**/
+STATIC
VOID *
EFIAPI
-AllocatePages (
- IN UINTN Pages
+InternalAllocatePages (
+ IN UINTN Pages,
+ IN EFI_MEMORY_TYPE MemoryType
)
{
EFI_PEI_HOB_POINTERS Hob;
@@ -65,13 +54,57 @@ 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.
Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an
|