Re: [PING^3][RESEND^3][PATCH v3] x86/PCI: Add support for the Intel 82378ZB/82379AB (SIO/SIO.A) PIRQ router

From: H. Peter Anvin
Date: Wed Mar 01 2023 - 12:17:22 EST


On March 1, 2023 5:14:59 AM PST, "Maciej W. Rozycki" <macro@xxxxxxxxxxx> wrote:
>On Sun, 8 Jan 2023, Maciej W. Rozycki wrote:
>
>> The Intel 82378ZB System I/O (SIO) and 82379AB System I/O APIC (SIO.A)
>> ISA bridges implement PCI interrupt steering with a PIRQ router[1][2]
>> that is exactly the same as that of the PIIX and ICH southbridges (or
>> actually the other way round, given that the SIO ASIC was there first).
>
> Ping for:
><https://lore.kernel.org/lkml/alpine.DEB.2.21.2301081956290.65308@xxxxxxxxxxxxxxxxx/>.
>
> I think the patch is fairly obvious. Are there any outstanding concerns
>that prevent it from being applied?
>
> Maciej
>

Has this patch been actually tested on a real machine, or is it purely theoretical?