x86: meaning of nolapic command line option

[Jan Beulich]

Shouldn't that option imply that all APIC related activity, including that relating to IO-APICs or PCI MSI, should be circumvented? I'm finding that MSI must be disabled separately, and while most of the IO-APIC stuff is indeed not happening, acpi_get_override_irq() only checks skip_ioapic_setup, but that doesn't normally set without the noapic command line option.

Is there any reason pci_no_msi() and disable_ioapic_setup() shouldn't be called when !cpu_has_apic at the end of identify_cpu()?

Thanks, Jan

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/