Module Name:	src
Committed By:	thorpej
Date:		Wed Nov 11 06:43:52 UTC 1998

Modified Files:
	src/sys/arch/pc532/include: cpu.h
	src/sys/arch/pc532/pc532: trap.c vm_machdep.c
	src/sys/arch/pica/pica: vm_machdep.c
	src/sys/arch/powerpc/powerpc: trap.c vm_machdep.c
	src/sys/arch/sparc/include: cpu.h
	src/sys/arch/sparc/sparc: trap.c vm_machdep.c
	src/sys/arch/sparc64/include: cpu.h
	src/sys/arch/sparc64/sparc64: trap.c vm_machdep.c
	src/sys/arch/sun3/sun3: locore.s machdep.h trap.c vm_machdep.c
	src/sys/arch/sun3/sun3x: locore.s
	src/sys/arch/vax/vax: vm_machdep.c
	src/sys/arch/x68k/include: cpu.h
	src/sys/arch/x68k/x68k: locore.s trap.c vm_machdep.c
Log Message:
Changes to support fork_kthread():
- cpu_set_kpc() now takes void *arg third argument, passed to the
entry point.
- cpu_fork() allows parent to be non-curproc iff parent is proc0.
When forking non-curproc, assume its state has already been saved.
- Adjust various pieces of machine-dependent code to account of all of this.