Attilio Rao dc6fbf6545 * Completely Remove the option STOP_NMI from the kernel. This option ... has proven to have a good effect when entering KDB by using a NMI, but it completely violates all the good rules about interrupts disabled while holding a spinlock in other occasions. This can be the cause of deadlocks on events where a normal IPI_STOP is expected. * Adds an new IPI called IPI_STOP_HARD on all the supported architectures. This IPI is responsible for sending a stop message among CPUs using a privileged channel when disponible. In other cases it just does match a normal IPI_STOP. Right now the IPI_STOP_HARD functionality uses a NMI on ia32 and amd64 architectures, while on the other has a normal IPI_STOP effect. It is responsibility of maintainers to eventually implement an hard stop when necessary and possible. * Use the new IPI facility in order to implement a new userend SMP kernel function called stop_cpus_hard(). That is specular to stop_cpu() but it does use the privileged channel for the stopping facility. * Let KDB use the newly introduced function stop_cpus_hard() and leave stop_cpus() for all the other cases * Disable interrupts on CPU0 when starting the process of APs suspension. * Style cleanup and comments adding This patch should fix the reboot/shutdown deadlocks many users are constantly reporting on mailing lists. Please don't forget to update your config file with the STOP_NMI option removal Reviewed by: jhb Tested by: pho, bz, rink Approved by: re (kib)		2009-08-13 17:09:45 +00:00
..
cddl
_bus.h
_inttypes.h
_limits.h
_stdint.h
_types.h
asi.h
asm.h
asmacros.h
atomic.h
bus_dma.h
bus_private.h
bus.h
ccr.h
clock.h
cpu.h
cpufunc.h
db_machdep.h
elf.h
endian.h
exec.h
float.h
floatingpoint.h
fp.h
frame.h
fsr.h
gdb_machdep.h
hv_api.h
hv_pcivar.h
hviommu.h
hypervisorvar.h
idprom.h
ieee.h
ieeefp.h
in_cksum.h
instr.h
intr_machdep.h
kdb.h
kerneldump.h
ktr.h
limits.h
lsu.h
md_var.h
mdesc_bus_subr.h
mdesc_bus.h
memdev.h
metadata.h
mmu.h
mutex.h
nexusvar.h
ofw_machdep.h
ofw_mem.h
ofw_nexus.h
param.h	Cleanup ALIGNED_POINTER:	2009-07-05 17:45:48 +00:00
pcb.h
pcpu.h
pmap.h	Add support to the virtual memory system for configuring machine-	2009-07-12 23:31:20 +00:00
pmc_mdep.h
proc.h
profile.h
pstate.h
ptrace.h
reg.h
reloc.h
resource.h
runq.h
sc_machdep.h
setjmp.h
sf_buf.h
sigframe.h
signal.h
smp.h	* Completely Remove the option STOP_NMI from the kernel. This option	2009-08-13 17:09:45 +00:00
stack.h
stdarg.h
sun4v_cpufunc.h
sysarch.h
tick.h
tlb.h
trap.h
tsb.h
tstate.h
tte_hash.h
tte.h
ucontext.h
upa.h
utrap.h
varargs.h
ver.h
vm.h	Add support to the virtual memory system for configuring machine-	2009-07-12 23:31:20 +00:00
vmparam.h
watch.h
wstate.h