AArch64 support the use of more than 48 bits for physical and/or
virtual addressing, but only if the page size is set to 64 KB,
which is not supported by UEFI/EDK2. So redefine MAX_ADDRESS to
cover only 48 address bits.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <[email protected]>
---
 MdePkg/Include/AArch64/ProcessorBind.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MdePkg/Include/AArch64/ProcessorBind.h 
b/MdePkg/Include/AArch64/ProcessorBind.h
index 968c18f915ae..dad75df1c579 100644
--- a/MdePkg/Include/AArch64/ProcessorBind.h
+++ b/MdePkg/Include/AArch64/ProcessorBind.h
@@ -138,9 +138,9 @@ typedef INT64   INTN;
 #define MAX_2_BITS  0xC000000000000000ULL
 
 ///
-/// Maximum legal AARCH64  address
+/// Maximum legal AARCH64  address (48 bits for 4 KB page size)
 ///
-#define MAX_ADDRESS   0xFFFFFFFFFFFFFFFFULL
+#define MAX_ADDRESS   0xFFFFFFFFFFFFULL
 
 ///
 /// Maximum legal AArch64 INTN and UINTN values.
-- 
2.19.1

_______________________________________________
edk2-devel mailing list
[email protected]
https://lists.01.org/mailman/listinfo/edk2-devel

Reply via email to