Add definition for %cr4 PKRU enable bit.

Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 3 days Differential revision: https://reviews.freebsd.org/D18893
2019-02-19 19:13:48 +00:00 · 2019-02-19 19:13:48 +00:00 · 5671e0d62e
commit 5671e0d62e
parent 00377637a7
1 changed files with 1 additions and 0 deletions
--- a/sys/x86/include/specialreg.h
+++ b/sys/x86/include/specialreg.h
@ -77,6 +77,7 @@
 #define	CR4_XSAVE 0x00040000	/* XSETBV/XGETBV */
 #define	CR4_SMEP 0x00100000	/* Supervisor-Mode Execution Prevention */
 #define	CR4_SMAP 0x00200000	/* Supervisor-Mode Access Prevention */
+#define	CR4_PKE	0x00400000	/* Protection Keys Enable */

 /*
 * Bits in AMD64 special registers.  EFER is 64 bits wide.