juan@xtrarom.org said:
   > +#define X86_IPI_READ_MSR		0x00000080
   > +#define X86_IPI_WRITE_MSR		0x00000100 
   
   Instead of wasting a bit for each rarely used function, wouldn't it
   be better to add a generic handler once and for all, as FreeBSD's
   rendez-vous thing?


FWIW, the sparc SMP code has two types of IPI's.  fast ones that
call specific handlers, and a generic "function + 3 args" call.


.mrg.