Hello,

   This patch was originally floating around linux-kernel a while ago 
for 2.4.x, all I have done is update it to work with 2.5.x.  It will 
only create directories and device files for cpus present at boot, there 
was a seperate version of a patch similar to this which implemented 
devfs_per_cpu_{un,}register functions but the devfs code it was based is 
very different than todays devfs in 2.5.x.  This patch works well enough 
for me to simply gain access to /dev/cpu/%d/{cpuid,msr}.  Thanks.

Jordan