Changes in kernel/arch/amd64/include/mm/as.h [26aafe8:dc0b964] in mainline

File:

• kernel/arch/amd64/include/mm/as.h (modified) (1 diff)

kernel/arch/amd64/include/mm/as.h

@@ -43 +43 @@
 #define KERNEL_ADDRESS_SPACE_START_ARCH  UINT64_C(0xffff800000000000)
 #define KERNEL_ADDRESS_SPACE_END_ARCH    UINT64_C(0xffffffffffffffff)
-#define USER_ADDRESS_SPACE_START_ARCH    UINT64_C(0x0000000000000000)
-#define USER_ADDRESS_SPACE_END_ARCH      UINT64_C(0x00007fffffffffff)
+
+#define USER_ADDRESS_SPACE_START_ARCH  UINT64_C(0x0000000000000000)
+#define USER_ADDRESS_SPACE_END_ARCH    UINT64_C(0x00007fffffffffff)
+
+#define USTACK_ADDRESS_ARCH  (USER_ADDRESS_SPACE_END_ARCH - (PAGE_SIZE - 1))
 
 #define as_constructor_arch(as, flags)  (as != as)