From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Sasha Levin <levinsasha928@gmail.com>,
mingo@elte.hu, asias.hejun@gmail.com, prasadjoshi124@gmail.com,
kvm@vger.kernel.org
Subject: Re: [PATCH 1/2] kvm tools: Fix IRQ assignments
Date: Fri, 06 May 2011 12:16:48 +0400 [thread overview]
Message-ID: <4DC3AE70.1080801@gmail.com> (raw)
In-Reply-To: <BANLkTi=Fjey+G-Azie2UjOyWWepE7mCoVQ@mail.gmail.com>
On 05/06/2011 12:10 PM, Pekka Enberg wrote:
> On Fri, May 6, 2011 at 11:08 AM, Cyrill Gorcunov <gorcunov@gmail.com> wrote:
>> Yes, that is what we do, and it seems to be the "right" way how sane bios
>> should behave, same time (i might be wrong since I didn't checked this
>> part of kernel sources) the kernel might scan memory for pci configs and
>> read pis/irq directly from there, I think this way kernel workaround broken
>> bioses but now sure if we should rely on this feature.
>
> That's not a problem, though, is it? As long as you use the "device
> tree" to set up the PCI configs as well, it's irrelevant where the
> kernel picks them up, no?
Yeah, if we have own "tracking" tool to allocate irqs/pins we put consistent
data into both mptable and pci config space. Which of course means we need
some more code for allocator/tracker ;)
--
Thanks,
Cyrill
next prev parent reply other threads:[~2011-05-06 8:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-06 7:26 [PATCH 1/2] kvm tools: Fix IRQ assignments Sasha Levin
2011-05-06 7:26 ` [PATCH 2/2] kvm tools: Simplify search for root device Sasha Levin
2011-05-07 8:41 ` Pekka Enberg
2011-05-07 8:46 ` Sasha Levin
2011-05-07 8:49 ` Prasad Joshi
2011-05-06 7:29 ` [PATCH 1/2] kvm tools: Fix IRQ assignments Pekka Enberg
2011-05-06 7:31 ` Cyrill Gorcunov
2011-05-06 7:36 ` Sasha Levin
2011-05-06 7:43 ` Pekka Enberg
2011-05-06 8:01 ` Sasha Levin
2011-05-06 8:04 ` Pekka Enberg
2011-05-06 8:08 ` Cyrill Gorcunov
2011-05-06 8:10 ` Pekka Enberg
2011-05-06 8:16 ` Cyrill Gorcunov [this message]
2011-05-06 7:47 ` Cyrill Gorcunov
2011-05-06 7:59 ` Pekka Enberg
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