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authorIvan Vecera <ivecera@redhat.com>2008-11-11 14:33:44 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-11 14:50:02 +0100
commitd3ec5cae0921611ceae06464ef6291012dd9849f (patch)
tree81a84f184f9047b12895bbd91c1e8b1ff2e076f0 /arch/x86/kernel/smp.c
parent3ad4f597058301c97f362e500a32f63f5c950a45 (diff)
downloadop-kernel-dev-d3ec5cae0921611ceae06464ef6291012dd9849f.zip
op-kernel-dev-d3ec5cae0921611ceae06464ef6291012dd9849f.tar.gz
x86: call machine_shutdown and stop all CPUs in native_machine_halt
Impact: really halt all CPUs on halt Function machine_halt (resp. native_machine_halt) is empty for x86 architectures. When command 'halt -f' is invoked, the message "System halted." is displayed but this is not really true because all CPUs are still running. There are also similar inconsistencies for other arches (some uses power-off for halt or forever-loop with IRQs enabled/disabled). IMO there should be used the same approach for all architectures OR what does the message "System halted" really mean? This patch fixes it for x86. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/smp.c')
-rw-r--r--arch/x86/kernel/smp.c13
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 18f9b19..3f92b13 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -140,19 +140,6 @@ void native_send_call_func_ipi(cpumask_t mask)
send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
}
-static void stop_this_cpu(void *dummy)
-{
- local_irq_disable();
- /*
- * Remove this CPU:
- */
- cpu_clear(smp_processor_id(), cpu_online_map);
- disable_local_APIC();
- if (hlt_works(smp_processor_id()))
- for (;;) halt();
- for (;;);
-}
-
/*
* this function calls the 'stop' function on all other CPUs in the system.
*/
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