X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FInclude%2Fx64%2FProcessorBind.h;h=d8c76922c89f9e2e4c22c463ad5a91539a0e4522;hp=3a2fea26ceb32aae143e10d5d536332f9f414a0d;hb=caae4de6b65ff0b232de942b52ece4cb4e6fbb90;hpb=3d4bdea9cc24d619c084ec0b7a629d97e71fda8c

diff --git a/MdePkg/Include/x64/ProcessorBind.h b/MdePkg/Include/x64/ProcessorBind.h
index 3a2fea26ce..d8c76922c8 100644
--- a/MdePkg/Include/x64/ProcessorBind.h
+++ b/MdePkg/Include/x64/ProcessorBind.h
@@ -159,10 +159,15 @@ typedef INT64   INTN;
 #define MAX_2_BITS  0xC000000000000000
 
 //
-// Maximum legal Itanium-based address
+// Maximum legal X64 address
 //
 #define MAX_ADDRESS   0xFFFFFFFFFFFFFFFF
 
+//
+// The stack alignment required for X64
+//
+#define CPU_STACK_ALIGNMENT   sizeof(UINTN)
+
 //
 // Modifier to ensure that all protocol member functions and EFI intrinsics
 // use the correct C calling convention. All protocol member functions and