Re: [Qemu-devel] [PATCH 10/21] Advertise pci irqs as active high in DSDT

[Gleb Natapov]

On Fri, Oct 09, 2009 at 11:56:14AM +0100, Jamie Lokier wrote:
> Gleb Natapov wrote:
> > Now that kvm emulates the ioapic polarity correctly, we must describe
> > the polarity correctly in the acpi tables. Otherwise pci interrupts won't
> > be delivered correctly.
> 
> In another thread recently, wasn't it mentioned that the in-kernel
> ioapic handles polarity correctly but the out-of-kernel ioapic does
> not yet?
> 
Correct and that is why out-of-kernel doesn't care about polarity. It
just ignores the bit. So for in-kernel ioapic to work you need this
change and it is nop for out-of-kernel one

--
                        Gleb.