6749646 cpuid_pass2 stomps on cpi_xmaxeax

[Saurabh.Mishra at sun.com]

Author: Saurabh Misra <Saurabh.Mishra at Sun.COM>
Repository: /hg/onnv/onnv-gate
Latest revision: 2a682532f0ca02bf9a4aa23ac904513f74bfecf9
Total changesets: 1
Log message:
6749646 cpuid_pass2 stomps on cpi_xmaxeax
6751751 race in xc_common() & xc_serv() since WRMSR can not be used as a serializing instruction in x2apic

Files:
	update: usr/src/uts/i86pc/io/pcplusmp/apic.c
	update: usr/src/uts/i86pc/io/pcplusmp/apic_regops.c
	update: usr/src/uts/i86pc/os/cpuid.c
	update: usr/src/uts/i86pc/sys/apic.h