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-rw-r--r--MdePkg/Include/Uefi/UefiBaseType.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/MdePkg/Include/Uefi/UefiBaseType.h b/MdePkg/Include/Uefi/UefiBaseType.h
index 9218b1d311..e0c77f6b47 100644
--- a/MdePkg/Include/Uefi/UefiBaseType.h
+++ b/MdePkg/Include/Uefi/UefiBaseType.h
@@ -160,5 +160,8 @@ typedef union {
#define EFI_PAGE_MASK 0xFFF
#define EFI_PAGE_SHIFT 12
+#define EFI_SIZE_TO_PAGES(a) (((a) >> EFI_PAGE_SHIFT) + (((a) & EFI_PAGE_MASK) ? 1 : 0))
+
+#define EFI_PAGES_TO_SIZE(a) ( (a) << EFI_PAGE_SHIFT)
#endif