lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86: fully honor "nolapic"

Browse Source 
Impact: widen the effect of the 'nolapic' boot parameter

"nolapic" should not only suppress SMP and use of the LAPIC, but it
also ought to have the effect of disabling all IO-APIC related activity
as well as PCI MSI and HT-IRQs.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jan Beulich
2009-01-14 12:27:35 +00:00
committed by Ingo Molnar
parent 5cca0cf15a
commit f11826385b
3 changed files with 13 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/kernel/smpboot.c
View File

@@ -1125,6 +1125,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
printk(KERN_ERR "... forcing use of dummy APIC emulation."
"(tell your hw vendor)\n");
smpboot_clear_io_apic();
disable_ioapic_setup();
return -1;
}