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From: Julien Grall <julien.grall@citrix.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	vijay.kilari@gmail.com
Cc: Ian.Campbell@citrix.com, Prasun.Kapoor@caviumnetworks.com,
	Vijaya Kumar K <vijaya.kumar@caviumnetworks.com>,
	tim@xen.org, xen-devel@lists.xen.org,
	stefano.stabellini@citrix.com, manish.jaggi@caviumnetworks.com
Subject: Re: [PATCH v4 16/17] xen/arm: ITS: Generate ITS node for Dom0
Date: Mon, 13 Jul 2015 19:31:32 +0200	[thread overview]
Message-ID: <55A3F5F4.8050409@citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1507131730400.17378@kaball.uk.xensource.com>

Hi Stefano,

On 13/07/2015 18:32, Stefano Stabellini wrote:
>
> All these #ifdefs are a bit ugly. Couldn't we just build this code
> always, even on arm32, relying on dt_match_node not to match in that
> case?

I'm not in favor of any ITS code in the common code unless it's strictly 
necessary.

In this specific case, the number of ITS between DOM0 and the hardware 
may be different. Per the design document, we only support 1 virtual ITS.

Furthermore, on the version 3 of this patch [1], I said that it's 
possible to do it in the hwdom_dt_callback and avoid all this mess in a 
function which only browse the device tree.

Regards,

[1] http://lists.xen.org/archives/html/xen-devel/2015-07/msg01092.html

-- 
Julien Grall

  reply	other threads:[~2015-07-13 17:31 UTC|newest]

Thread overview: 113+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-10  7:42 [PATCH v4 00/17] Add ITS support vijay.kilari
2015-07-10  7:42 ` [PATCH v4 01/17] xen/arm: Add bitmap_find_next_zero_area helper function vijay.kilari
2015-07-10  9:01   ` Jan Beulich
2015-07-10  9:28     ` Vijay Kilari
2015-07-10  9:30       ` Vijay Kilari
2015-07-10  9:45     ` Vijay Kilari
2015-07-10 10:07       ` Jan Beulich
2015-07-10  7:42 ` [PATCH v4 02/17] xen: Add log2 functionality vijay.kilari
2015-07-10  7:42 ` [PATCH v4 03/17] xen/arm: ITS: Port ITS driver to Xen vijay.kilari
2015-07-10 13:01   ` Ian Campbell
2015-07-15 10:23   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 04/17] xen/arm: ITS: Add helper functions to manage its_devices vijay.kilari
2015-07-10 13:05   ` Ian Campbell
2015-07-15 10:37   ` Julien Grall
2015-07-15 14:21     ` Vijay Kilari
2015-07-15 14:28       ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 05/17] xen/arm: ITS: implement hw_irq_controller for LPIs vijay.kilari
2015-07-10 13:46   ` Ian Campbell
2015-07-11 14:40     ` Vijay Kilari
2015-07-11 18:08       ` Julien Grall
2015-07-13  9:17       ` Ian Campbell
2015-07-13 21:18   ` Julien Grall
2015-07-15  7:16     ` Vijay Kilari
2015-07-15  8:26       ` Julien Grall
2015-07-15  9:32         ` Ian Campbell
2015-07-15  9:49           ` Julien Grall
2015-07-15 10:01             ` Ian Campbell
2015-07-15 14:15           ` Vijay Kilari
2015-07-15 14:22             ` Julien Grall
2015-07-15 14:28             ` Ian Campbell
2015-07-15 17:01               ` Vijay Kilari
2015-07-16 14:49                 ` Ian Campbell
2015-07-16 15:21                   ` Marc Zyngier
2015-07-16 16:18                     ` Ian Campbell
2015-07-16 16:27                       ` Marc Zyngier
2015-07-16 16:37                         ` Ian Campbell
2015-07-18 10:13           ` Julien Grall
2015-07-20 11:52             ` Ian Campbell
2015-07-20 12:22             ` Ian Campbell
2015-07-15 18:19   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 06/17] xen/arm: ITS: Add virtual ITS driver vijay.kilari
2015-07-10 13:54   ` Ian Campbell
2015-07-11 14:48     ` Vijay Kilari
2015-07-13  9:27       ` Ian Campbell
2015-07-10 14:15   ` Ian Campbell
2015-07-11 14:48     ` Vijay Kilari
2015-07-13  9:25       ` Ian Campbell
2015-07-15 12:17   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 07/17] xen/arm: ITS: Add virtual ITS commands support vijay.kilari
2015-07-10 14:35   ` Ian Campbell
2015-07-11 14:49     ` Vijay Kilari
2015-07-13  9:22       ` Ian Campbell
2015-07-13 11:15         ` Vijay Kilari
2015-07-13 11:37           ` Ian Campbell
2015-07-17 15:01             ` Vijay Kilari
2015-07-15 13:02     ` Julien Grall
2015-07-15 13:56       ` Ian Campbell
2015-07-15 12:57   ` Julien Grall
2015-07-17 14:12     ` Vijay Kilari
2015-07-17 15:15       ` Julien Grall
2015-07-17 15:34         ` Ian Campbell
2015-07-17 15:44           ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 08/17] xen/arm: ITS: Add APIs to add and assign device vijay.kilari
2015-07-10 14:52   ` Ian Campbell
2015-07-15 13:14     ` Julien Grall
2015-07-16 13:40       ` Vijay Kilari
2015-07-16 14:38         ` Julien Grall
2015-07-15 14:15   ` Julien Grall
2015-07-18  9:44     ` Vijay Kilari
2015-07-18 10:06       ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 09/17] xen/arm: ITS: Add GITS registers emulation vijay.kilari
2015-07-10 14:56   ` Ian Campbell
2015-07-15 16:13   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 10/17] xen/arm: ITS: Enable physical and virtual ITS driver compilation vijay.kilari
2015-07-15 16:16   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 11/17] xen/arm: ITS: Add GICR register emulation vijay.kilari
2015-07-10 15:10   ` Ian Campbell
2015-07-11 18:25     ` Julien Grall
2015-07-13  9:28       ` Ian Campbell
2015-07-13  9:53         ` Ian Campbell
2015-07-13 16:53   ` Stefano Stabellini
2015-07-15 17:32   ` Julien Grall
2015-07-16 14:15     ` Vijay Kilari
2015-07-16 14:41       ` Julien Grall
2015-07-16 14:46         ` Vijay Kilari
2015-07-16 14:58           ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 12/17] xen/arm: ITS: Initialize LPI irq descriptors and route vijay.kilari
2015-07-10 15:30   ` Ian Campbell
2015-07-20 13:07     ` Vijay Kilari
2015-07-20 13:25       ` Julien Grall
2015-07-22 13:31     ` Vijay Kilari
2015-07-22 13:39       ` Julien Grall
2015-07-22 14:17         ` Julien Grall
2015-07-13 17:03   ` Stefano Stabellini
2015-07-13 17:13   ` Stefano Stabellini
2015-07-13 17:36     ` Julien Grall
2015-07-15 18:13   ` Julien Grall
2015-07-16  8:06     ` Julien Grall
2015-07-16  8:37   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 13/17] xen/arm: ITS: Initialize physical ITS vijay.kilari
2015-07-13 17:06   ` Stefano Stabellini
2015-07-10  7:42 ` [PATCH v4 14/17] xen/arm: ITS: Add domain specific ITS initialization vijay.kilari
2015-07-10 15:41   ` Ian Campbell
2015-07-15 17:41   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 15/17] xen/arm: ITS: Map ITS translation space vijay.kilari
2015-07-10 15:43   ` Ian Campbell
2015-07-15  9:01   ` Julien Grall
2015-07-10  7:42 ` [PATCH v4 16/17] xen/arm: ITS: Generate ITS node for Dom0 vijay.kilari
2015-07-13 16:32   ` Stefano Stabellini
2015-07-13 17:31     ` Julien Grall [this message]
2015-07-13 17:36       ` Stefano Stabellini
2015-07-10  7:42 ` [PATCH v4 17/17] xen/arm: ITS: Add pci devices in ThunderX vijay.kilari
2015-07-10 15:45   ` Ian Campbell

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