Messages in this thread | | | Subject | Re: [PATCH 2/4] [APIC] Allow disabling of UP APIC/IO-APIC by default, with command line option to turn it on. | From | Ben Collins <> | Date | Fri, 01 Dec 2006 15:56:36 -0500 |
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On Fri, 2006-12-01 at 09:39 +0100, Ingo Molnar wrote: > * Ben Collins <bcollins@ubuntu.com> wrote:
> that should be "ioapic", not "apic". The CPU has a piece of silicon > called the "local APIC" - enabled via the 'lapic' option, and disabled > via noapic. What the option above wants to enable is the IO-APIC in the > chipset (a different piece of silicon) and the interrupt routing > capabilities attached to it. That piece is what is causing the installer > problems.
I know the difference between APIC and IO-APIC :)
Thing is, the function right above the one I added was this:
static int __init parse_noapic(char *arg) { /* disable IO-APIC */ disable_ioapic_setup(); return 0; } early_param("noapic", parse_noapic);
So while "ioapic" might make more sense, it's doesn't match the opposing command line option of "noapic".
I could include this in the diff:
+/* "noapic" is for backward compatibility */ early_param("noapic", parse_noapic); +early_param("noioapic", parse_noapic);
And then add the "ioapic" option. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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