linux-kernel - Re: 3.2.1 Unable to reset IRR messages on boot

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Message-ID: <1332294154.16101.97.camel@sbsiddha-desk.sc.intel.com>
Date:	Tue, 20 Mar 2012 18:42:33 -0700
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	jwboyer@...hat.com, mingo@...e.hu, hpa@...or.com,
	yinghai@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: 3.2.1 Unable to reset IRR messages on boot

On Tue, 2012-03-20 at 20:12 -0400, Konrad Rzeszutek Wilk wrote:
> I was talking with Suresh on IRC and I realized that some of these patches
> that did this were posted some time ago, so I dusted them off and redid them
> just a tiny bit.
> 
> Ingo, please take a look - and if you are OK with them please put in them
> the v3.4 queue - if you are not comfortable, then the above patch will have to
> suffice as a work-around for the regression.
> 
>  arch/x86/include/asm/io_apic.h  |   31 +++++++++++++++++++++++++++++--
>  arch/x86/include/asm/x86_init.h |    8 ++++++++
>  arch/x86/kernel/apic/io_apic.c  |   10 ++++++----
>  arch/x86/kernel/setup.c         |    2 +-
>  arch/x86/kernel/x86_init.c      |    8 ++++++++
>  arch/x86/xen/Makefile           |    2 +-
>  arch/x86/xen/apic.c             |   17 +++++++++++++++++
>  arch/x86/xen/enlighten.c        |    2 ++
>  arch/x86/xen/xen-ops.h          |    4 ++++
>  9 files changed, 76 insertions(+), 8 deletions(-)
> Jeremy Fitzhardinge (1):
>       x86: add io_apic_ops to allow interception
> 
> Konrad Rzeszutek Wilk (2):
>       x86/apic_ops: Replace apic_ops with x86_apic_ops.
>       xen/x86: Implement x86_apic_ops
> 

Ingo, Konrad was mentioning you didn't like this pieces before.

But for what Xen is trying to do, either we have to pursue this or
untangle the gsi and ioapic dependency.

I am ok with this path for now.

Acked-by: Suresh Siddha <suresh.b.siddha@...el.com>

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