arm64: mte: Add PROT_MTE support to mmap() and mprotect()

[linux-block.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index ca6e6a81576b932e804d64cc689fc730c85860a3..4312c6c808e91a02350a5a1a07d3fe5f6939928c 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -340,6 +340,14 @@ extern unsigned int kobjsize(const void *objp);
 # define VM_MAPPED_COPY        VM_ARCH_1       /* T if mapped copy of data (nommu mmap) */
 #endif
 
+#if defined(CONFIG_ARM64_MTE)
+# define VM_MTE                VM_HIGH_ARCH_0  /* Use Tagged memory for access control */
+# define VM_MTE_ALLOWED        VM_HIGH_ARCH_1  /* Tagged memory permitted */
+#else
+# define VM_MTE                VM_NONE
+# define VM_MTE_ALLOWED        VM_NONE
+#endif
+
 #ifndef VM_GROWSUP
 # define VM_GROWSUP    VM_NONE
 #endif