From: Julien Grall <julien.grall@linaro.org>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: xen-devel@lists.xenproject.org, tim@xen.org,
stefano.stabellini@citrix.com
Subject: Re: [PATCH v3 12/13] xen/arm: Add the property "protected-devices" in the hypervisor node
Date: Fri, 04 Apr 2014 12:23:05 +0100 [thread overview]
Message-ID: <533E9619.7030809@linaro.org> (raw)
In-Reply-To: <1396610010.4211.204.camel@kazak.uk.xensource.com>
On 04/04/2014 12:13 PM, Ian Campbell wrote:
> We could enable both of those things only at the point where vm_assist
> was called.
[..]
> I think we can reasonably require that vm_assist be called super early,
> i.e. before any DMA operations occur, in Linux terms I think
> early_initcall(xen_guest_init) is likely early enough, or we could move
> xen_guestr_init even sooner.
IHMO, this solution is far too complicate and we will have to fork from
the current IOMMU framework.
> We also have the option of a build time feature flag in the image itself
> like on x86. It is likely that going forward we will have other cases
> where we wished we had such a thing so getting it in place now would be
> useful.
I definitely prefer this solution which seems more cleaner than the others.
Is it possible to embedded notes in a zImage? How x86 handle other
format than ELF?
>
>> It's not possible in Xen to know if the decide is used or not.
>
> "the decide"?
The device, I mixed multiple sentences together, sorry.
--
Julien Grall
next prev parent reply other threads:[~2014-04-04 11:23 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-11 15:49 [PATCH v3 00/13] IOMMU support for ARM Julien Grall
2014-03-11 15:49 ` [PATCH v3 01/13] xen/common: grant-table: only call IOMMU if paging mode translate is disabled Julien Grall
2014-03-11 15:49 ` [PATCH v3 02/13] xen/passthrough: amd: Remove domain_id from hvm_iommu Julien Grall
2014-03-18 16:19 ` Ian Campbell
2014-03-18 16:32 ` Jan Beulich
2014-03-11 15:49 ` [PATCH v3 03/13] xen/dts: Add dt_property_read_bool Julien Grall
2014-03-11 15:49 ` [PATCH v3 04/13] xen/dts: Add dt_parse_phandle_with_args and dt_parse_phandle Julien Grall
2014-03-18 16:20 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 05/13] xen/passthrough: rework dom0_pvh_reqs to use it also on ARM Julien Grall
2014-03-18 16:22 ` Ian Campbell
2014-03-18 17:28 ` Julien Grall
2014-03-18 17:50 ` Ian Campbell
2014-03-18 18:19 ` Julien Grall
2014-03-19 10:01 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 06/13] xen/passthrough: iommu: Split generic IOMMU code Julien Grall
2014-03-11 16:50 ` Jan Beulich
2014-03-11 17:09 ` Julien Grall
2014-03-12 7:15 ` Jan Beulich
2014-03-18 16:24 ` Ian Campbell
2014-03-18 17:36 ` Julien Grall
2014-03-18 17:50 ` Ian Campbell
2014-03-18 18:21 ` Julien Grall
2014-03-19 10:02 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 07/13] xen/passthrough: iommu: Introduce arch specific code Julien Grall
2014-03-11 16:15 ` Julien Grall
2014-03-11 16:53 ` Jan Beulich
2014-03-18 16:27 ` Ian Campbell
2014-03-18 19:40 ` Julien Grall
2014-03-11 15:49 ` [PATCH v3 08/13] xen/passthrough: iommu: Basic support of device tree assignment Julien Grall
2014-03-11 16:55 ` Jan Beulich
2014-03-18 16:33 ` Ian Campbell
2014-03-18 19:46 ` Julien Grall
2014-03-19 10:12 ` Ian Campbell
2014-03-19 10:42 ` Julien Grall
2014-03-19 10:54 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 09/13] xen/passthrough: Introduce IOMMU ARM architecture Julien Grall
2014-03-18 16:40 ` Ian Campbell
2014-03-18 19:58 ` Julien Grall
2014-03-19 10:29 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 10/13] MAINTAINERS: Add drivers/passthrough/arm Julien Grall
2014-03-11 15:49 ` [PATCH v3 11/13] xen/arm: Don't give IOMMU devices to dom0 when iommu is disabled Julien Grall
2014-03-18 16:41 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 12/13] xen/arm: Add the property "protected-devices" in the hypervisor node Julien Grall
2014-03-18 16:48 ` Ian Campbell
2014-03-18 20:09 ` Julien Grall
2014-03-19 10:33 ` Ian Campbell
2014-04-03 21:51 ` Julien Grall
2014-04-04 9:40 ` Ian Campbell
2014-04-04 10:25 ` Julien Grall
2014-04-04 10:28 ` Ian Campbell
2014-04-04 10:39 ` Julien Grall
2014-04-04 10:48 ` Ian Campbell
2014-04-04 11:01 ` Julien Grall
2014-04-04 11:13 ` Ian Campbell
2014-04-04 11:23 ` Julien Grall [this message]
2014-04-04 12:45 ` Ian Campbell
2014-04-04 13:10 ` Julien Grall
2014-04-04 13:18 ` Ian Campbell
2014-03-11 15:49 ` [PATCH v3 13/13] drivers/passthrough: arm: Add support for SMMU drivers Julien Grall
2014-03-18 16:54 ` Ian Campbell
2014-03-18 20:25 ` Julien Grall
2014-03-19 10:35 ` Ian Campbell
2014-03-19 10:44 ` Julien Grall
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