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From: Julien Grall <julien.grall@arm.com>
To: Wei Liu <wei.liu2@citrix.com>,
	"Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: edgar.iglesias@xilinx.com, sstabellini@kernel.org,
Subject: Re: [PATCH for-4.7 1/1] xen/arm: Rename map_regions_rw_cache and use p2m.default_access
Date: Wed, 8 Jun 2016 09:22:56 +0100	[thread overview]
Message-ID: <a0ab2eb9-f757-46d1-df84-7886ef304b61@arm.com> (raw)
In-Reply-To: <20160608081705.GB17632@citrix.com>

Hi Wei,

On 08/06/2016 09:17, Wei Liu wrote:
> On Wed, Jun 08, 2016 at 02:15:27AM +0200, Edgar E. Iglesias wrote:
>> From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
>> Rename map_regions_rw_cache to map_regions_cache and make it use
>> p2m.default_access.
>> Suggested-by: Julien Grall <julien.grall@arm.com>
>> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> I don't think this is absolutely necessary for 4.7.
> On the other hand, it is just straight renaming, which should be quite
> safe.

This patch does not only contain a renaming, it also contain a change to 
fix the default memaccess attribute.

However, I don't see why we should rename the function to 
map_regions_cache given this will always map the region Read-Write 
(p2m_mmio_direct prevents the execution of the memory).

> If I can get an ack or review from maintainers and confirmation that it
> doesn't break ARM build within today, we can shovel this in; otherwise
> it needs to wait for next version of Xen.

I would wait for a backport here. Stefano, any opinions?


Julien Grall

Xen-devel mailing list

  reply	other threads:[~2016-06-08  8:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-08  0:15 Edgar E. Iglesias
2016-06-08  8:17 ` Wei Liu
2016-06-08  8:22   ` Julien Grall [this message]
2016-06-08  8:25     ` Wei Liu
2016-06-08  9:36     ` Stefano Stabellini
2016-06-09 15:55       ` Edgar E. Iglesias
2016-06-08  8:24 ` Julien Grall

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