FreeBSD/src e7a9df1 (r344353) — sys/amd64/amd64 pmap.c sys_machdep.c, sys/amd64/include pmap.h
Add kernel support for Intel userspace protection keys feature on Skylake Xeons. See SDM rev. 68 Vol 3 4.6.2 Protection Keys and the description of the RDPKRU and WRPKRU instructions. Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D18893