add protection-key violation error code for page-fault exceptions

ok deraadt@

diff --git a/sys/arch/amd64/include/pte.h b/sys/arch/amd64/include/pte.h
index 397ec75..40418d2 100644 (file)
--- a/sys/arch/amd64/include/pte.h
+++ b/sys/arch/amd64/include/pte.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: pte.h,v 1.14 2018/01/07 19:56:19 mlarkin Exp $        */
+/*     $OpenBSD: pte.h,v 1.15 2023/01/14 03:37:13 jsg Exp $    */
 /*     $NetBSD: pte.h,v 1.1 2003/04/26 18:39:47 fvdl Exp $     */
 
 /*
@@ -155,6 +155,7 @@ typedef u_int64_t pt_entry_t;               /* PTE */
 #define PGEX_W         0x02    /* exception during a write cycle */
 #define PGEX_U         0x04    /* exception while in user mode (upl) */
 #define PGEX_I         0x10    /* instruction fetch blocked by NX */
+#define PGEX_PK                0x20    /* protection-key violation */
 
 #ifdef _KERNEL
 extern pt_entry_t pg_nx;       /* NX pte bit */