6576347 need microcode driver on Xen

[mark.john...@sun.com]

Author: Mark Johnson <Mark.Johnson at Sun.COM>
Repository: /hg/onnv/onnv-gate
Latest revision: e6998aa65d2d1b14775df4c90257f6bdb2d8cbc4
Total changesets: 1
Log message:
6576347 need microcode driver on Xen

Files:
        update: usr/src/uts/i86pc/os/microcode.c
        update: usr/src/uts/i86pc/os/mlsetup.c
        update: usr/src/uts/i86pc/os/mp_startup.c
        update: usr/src/uts/intel/sys/x86_archext.h