From: Julien Grall <julien.grall@citrix.com>
To: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <Wei.Liu2@citrix.com>,
Vijay Kilari <vijay.kilari@gmail.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Prasun Kapoor <Prasun.Kapoor@caviumnetworks.com>,
manish.jaggi@caviumnetworks.com,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
Stefano Stabellini <stefano.stabellini@citrix.com>
Subject: Re: Requesting for freeze exception for ARM/ITS patches
Date: Mon, 13 Jul 2015 23:58:16 +0200 [thread overview]
Message-ID: <55A43478.6070406@citrix.com> (raw)
In-Reply-To: <1436606464.7019.4.camel@citrix.com>
Hi,
On 11/07/2015 11:21, Ian Campbell wrote:
> On Sat, 2015-07-11 at 09:18 +0200, Julien Grall wrote:
>>> As I explained in my reply to Jan I think this is underselling it a
>>> little, since AIUI it should make it possible to boot Xen on ThunderX
>>> and do useful things (like run guests).
>>
>> Well, PCI are able to support both legacy interrupt and MSI. If there is
>> no MSI, the PCI will use the former. The performance may be "poor" but
>> it will at least boot Xen on ThunderX and creating guest.
>
> AIUI ThunderX's on-SoC PCI devices do not provide legacy PCI INTX
> interrupts, only MSI/LPI interrupts. Perhaps someone from Cavium can
> confirm whether or not this is the case.
I haven't found any PCI controller in the Linux upstream device tree
bindings of cavium. Although I found a thread for 2014 about it [1].
As the thread is quite old now, can some from Cavium confirm this will
be valid on the production hardware?
Regards,
[1] https://lkml.org/lkml/2014/9/25/73
--
Julien Grall
next prev parent reply other threads:[~2015-07-13 21:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-10 10:46 Requesting for freeze exception for ARM/ITS patches Vijay Kilari
2015-07-10 11:01 ` Jan Beulich
2015-07-10 15:52 ` Ian Campbell
2015-07-11 6:36 ` Julien Grall
2015-07-14 9:24 ` Vijay Kilari
2015-07-14 9:50 ` Ian Campbell
2015-07-14 9:59 ` Vijay Kilari
2015-07-10 16:07 ` Ian Campbell
2015-07-11 7:18 ` Julien Grall
2015-07-11 9:21 ` Ian Campbell
2015-07-13 21:58 ` Julien Grall [this message]
2015-07-14 10:02 ` Vijay Kilari
2015-07-14 13:31 ` Ian Campbell
2015-07-13 13:55 ` Wei Liu
2015-07-13 13:56 ` Wei Liu
2015-07-13 17:24 ` Stefano Stabellini
2015-07-13 21:50 ` Julien Grall
2015-07-14 7:49 ` Ian Campbell
2015-07-14 10:51 ` Stefano Stabellini
2015-07-16 14:08 ` Wei Liu
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