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x86: nmi - add sensible names to nmi_watchdog boot param

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Impact: introduce nmi_watchdog=lapic and nmi_watchdog=ioapic aliases

Add sensible names as "lapic" and "ioapic" to
nmi_watchdog boot parameter. Sometimes it is not
that easy to recall what exactly nmi_watchdog=1
does mean so we allow the using of symbolic names here.

Old numeric values remain valid.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Cyrill Gorcunov 2008-10-30 19:16:46 +03:00 committed by Ingo Molnar
parent e946217e4f
commit b062f841b5
1 changed files with 10 additions and 5 deletions
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15
arch/x86/kernel/nmi.c
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@ -199,12 +199,17 @@ static int __init setup_nmi_watchdog(char *str)
++str;
}
get_option(&str, &nmi);
if (!strncmp(str, "lapic", 5))
nmi_watchdog = NMI_LOCAL_APIC;
else if (!strncmp(str, "ioapic", 6))
nmi_watchdog = NMI_IO_APIC;
else {
get_option(&str, &nmi);
if (nmi >= NMI_INVALID)
return 0;
nmi_watchdog = nmi;
}
if (nmi >= NMI_INVALID)
return 0;
nmi_watchdog = nmi;
return 1;
}
__setup("nmi_watchdog=", setup_nmi_watchdog);