From: Julien Grall <julien.grall@citrix.com>
To: vijay.kilari@gmail.com, Ian.Campbell@citrix.com,
stefano.stabellini@eu.citrix.com, stefano.stabellini@citrix.com,
tim@xen.org, xen-devel@lists.xen.org
Cc: Prasun.Kapoor@caviumnetworks.com,
Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>,
manish.jaggi@caviumnetworks.com
Subject: Re: [PATCH v7 28/28] xen/arm: ITS: Add pci devices in ThunderX
Date: Tue, 22 Sep 2015 16:09:22 +0100 [thread overview]
Message-ID: <56016F22.10607@citrix.com> (raw)
In-Reply-To: <1442581755-2668-29-git-send-email-vijay.kilari@gmail.com>
Hi Vijay,
On 18/09/15 14:09, vijay.kilari@gmail.com wrote:
> From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
>
> ITS initialization required for all PCI devices in
> ThunderX platform are done by calling from specific
> mapping function.
>
> This patch can be reverted once XEN PCI passthrough
> framework for arm64 is in available.
When a new feature is added in Xen (such as ITS and basic PCI support
with Thunder-X), we are trying to avoid any breakage no matter the
version of Linux.
With this series, any Linux with Thunder-X support is able to boot on
Xen and use basic PCI without Manish's series. If we decide to revert
this patch, a such Linux won't be able to boot any more on Xen.
IIUC, what matters is having Xen booting on Thunder-X with PCI supported
when 4.7 released. If we can get PCI passthrough fully working by then,
this patch will become unnecessary.
Xen 4.6 hasn't yet been released, so it's entirely feasible to get the
PCI passthrough for the next release if we start to review it very soon.
If the feature doesn't land in staging before the freeze, then we can
talk about having this patch in 4.7 and come up with a plan to revert it
when PCI passthrough will be fully supported.
Regards,
--
Julien Grall
next prev parent reply other threads:[~2015-09-22 15:09 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-18 13:08 [PATCH v7 00/28] Add ITS support vijay.kilari
2015-09-18 13:08 ` [PATCH v7 01/28] xen/arm: Add bitmap_find_next_zero_area helper function vijay.kilari
2015-09-18 13:08 ` [PATCH v7 02/28] xen: Add log2 functionality vijay.kilari
2015-09-18 13:08 ` [PATCH v7 03/28] xen/arm: Set nr_cpu_ids to available number of cpus vijay.kilari
2015-09-18 13:08 ` [PATCH v7 04/28] xen/arm: Rename NR_IRQs and vgic_num_irqs helper function vijay.kilari
2015-09-21 10:40 ` Julien Grall
2015-09-18 13:08 ` [PATCH v7 05/28] xen/arm: ITS: Port ITS driver to Xen vijay.kilari
2015-09-21 11:23 ` Julien Grall
2015-09-22 9:55 ` Vijay Kilari
2015-09-22 10:01 ` Julien Grall
2015-09-22 10:34 ` Vijay Kilari
2015-09-22 12:34 ` Julien Grall
2015-09-21 13:08 ` Julien Grall
2015-09-18 13:08 ` [PATCH v7 06/28] xen/arm: ITS: Add helper functions to manage its_devices vijay.kilari
2015-09-18 14:15 ` Julien Grall
2015-09-21 11:26 ` Julien Grall
2015-09-18 13:08 ` [PATCH v7 07/28] xen/arm: ITS: Introduce msi_desc for LPIs vijay.kilari
2015-09-18 13:08 ` [PATCH v7 08/28] xen/arm: ITS: Add APIs to add and assign device vijay.kilari
2015-09-21 13:47 ` Julien Grall
2015-09-22 7:33 ` Vijay Kilari
2015-09-22 13:19 ` Julien Grall
2015-09-18 13:08 ` [PATCH v7 09/28] xen/arm: ITS: Introduce gic_is_lpi helper function vijay.kilari
2015-09-21 14:20 ` Julien Grall
2015-09-22 9:10 ` Vijay Kilari
2015-09-22 13:24 ` Julien Grall
2015-09-18 13:08 ` [PATCH v7 10/28] xen/arm: ITS: Implement hw_irq_controller for LPIs vijay.kilari
2015-09-21 14:35 ` Julien Grall
2015-09-18 13:08 ` [PATCH v7 11/28] xen/arm: ITS: Enable compilation of physical ITS driver vijay.kilari
2015-09-18 13:08 ` [PATCH v7 12/28] xen/arm: ITS: Plumbing hw_irq_controller for LPIs vijay.kilari
2015-09-21 14:44 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 13/28] xen/arm: Move vgic rank locking inside get_irq_priority vijay.kilari
2015-09-21 14:49 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 14/28] xen/arm: ITS: Initialize physical ITS and export lpi support vijay.kilari
2015-09-21 15:20 ` Julien Grall
2015-09-22 9:17 ` Vijay Kilari
2015-09-22 9:45 ` Julien Grall
2015-09-22 10:05 ` Ian Campbell
2015-09-22 10:29 ` Julien Grall
2015-09-22 10:44 ` Ian Campbell
2015-09-22 12:31 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 15/28] xen/arm: ITS: Add virtual ITS driver vijay.kilari
2015-09-21 15:34 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 16/28] xen/arm: ITS: Add virtual ITS commands support vijay.kilari
2015-09-22 13:47 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 17/28] xen/arm: ITS: Add GITS registers emulation vijay.kilari
2015-09-22 14:30 ` Julien Grall
2015-09-24 5:07 ` Vijay Kilari
2015-09-24 11:05 ` Julien Grall
2015-09-24 11:29 ` Ian Campbell
2015-09-24 11:43 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 18/28] xen/arm: ITS: Export ITS info to Virtual ITS vijay.kilari
2015-09-23 8:31 ` Julien Grall
2015-09-24 5:26 ` Vijay Kilari
2015-09-24 8:27 ` Ian Campbell
2015-09-24 11:31 ` Julien Grall
2015-09-24 11:41 ` Ian Campbell
2015-09-18 13:09 ` [PATCH v7 19/28] xen/arm: ITS: Store LPIs allocated per domain vijay.kilari
2015-09-23 8:37 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 20/28] xen/arm: ITS: Add virtual ITS availability check helper vijay.kilari
2015-09-23 8:52 ` Julien Grall
2015-09-24 6:44 ` Vijay Kilari
2015-09-24 11:47 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 21/28] xen/arm: ITS: Add GICR register emulation vijay.kilari
2015-09-23 10:22 ` Julien Grall
2015-09-26 16:08 ` Vijay Kilari
2015-09-28 9:53 ` Ian Campbell
2015-09-28 10:37 ` Vijay Kilari
2015-09-28 11:03 ` Julien Grall
2015-09-29 9:35 ` Vijay Kilari
2015-09-18 13:09 ` [PATCH v7 22/28] xen/arm: ITS: Allocate irq descriptors for LPIs vijay.kilari
2015-09-23 10:28 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 23/28] xen/arm: ITS: Allocate pending_lpi " vijay.kilari
2015-09-24 12:38 ` Julien Grall
2015-09-18 13:09 ` [PATCH v7 24/28] xen/arm: ITS: Route LPIs vijay.kilari
2015-09-18 13:09 ` [PATCH v7 25/28] xen/arm: ITS: Add domain specific ITS initialization vijay.kilari
2015-09-18 13:09 ` [PATCH v7 26/28] xen/arm: ITS: Map ITS translation space vijay.kilari
2015-09-18 13:09 ` [PATCH v7 27/28] xen/arm: ITS: Generate ITS node for Dom0 vijay.kilari
2015-09-18 13:09 ` [PATCH v7 28/28] xen/arm: ITS: Add pci devices in ThunderX vijay.kilari
2015-09-22 15:09 ` Julien Grall [this message]
2015-09-18 13:51 ` [PATCH v7 00/28] Add ITS support Julien Grall
2015-09-21 6:52 ` Vijay Kilari
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