From: Julien Grall <julien.grall@citrix.com>
To: Shannon Zhao <shannon.zhao@linaro.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Shannon Zhao <zhaoshenglong@huawei.com>
Cc: Hangaohuai <hangaohuai@huawei.com>,
Ian Campbell <ian.campbell@citrix.com>,
"Huangpeng (Peter)" <peter.huangpeng@huawei.com>,
xen-devel <xen-devel@lists.xen.org>,
Stefano Stabellini <stefano.stabellini@citrix.com>,
Jan Beulich <jbeulich@suse.com>,
parth.dixit@linaro.org,
Christoffer Dall <christoffer.dall@linaro.org>
Subject: Re: Design doc of adding ACPI support for arm64 on Xen
Date: Wed, 5 Aug 2015 13:48:00 +0100 [thread overview]
Message-ID: <55C20600.9070104@citrix.com> (raw)
In-Reply-To: <55C1F840.9060002@linaro.org>
On 05/08/15 12:49, Shannon Zhao wrote:
>> That's great!
>> Keep in mind that many ARM platforms have non-PCI busses, so I think
>> we'll need an amba and a platform bus_notifier too, in addition to the
>> existing pci bus notifier.
>>
>
> Thanks for your reminding. I thought about amba. Since ACPI of current
> linux kernel doesn't support probe amba bus devices, so this
> bus_notifier will not be used at the moment. But there are some voice
> that we need to make ACPI support amba on the linux arm kernel mail
> list. And to me it doesn't matter to add the amba bus_notifier.
This comment raised one question. What happen if the hardware has MMIO
region not described in the ACPI?
Does the driver would have to call a specific xen function to register
the missing I/O?
Regards,
--
Julien Grall
next prev parent reply other threads:[~2015-08-05 12:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-04 13:43 Design doc of adding ACPI support for arm64 on Xen Shannon Zhao
2015-08-04 14:37 ` Stefano Stabellini
2015-08-04 14:59 ` Shannon Zhao
2015-08-05 9:29 ` Shannon Zhao
2015-08-05 10:23 ` Julien Grall
2015-08-05 10:33 ` Stefano Stabellini
2015-08-05 10:31 ` Stefano Stabellini
2015-08-05 11:49 ` Shannon Zhao
2015-08-05 12:48 ` Julien Grall [this message]
2015-08-05 13:03 ` Shannon Zhao
2015-08-05 13:25 ` Julien Grall
2015-08-05 16:47 ` Stefano Stabellini
2015-08-05 16:52 ` Stefano Stabellini
2015-08-05 17:00 ` Julien Grall
2015-08-11 20:43 ` Konrad Rzeszutek Wilk
2015-08-12 3:10 ` Shannon Zhao
2015-08-06 3:28 ` Shannon Zhao
2015-08-06 9:01 ` Stefano Stabellini
2015-08-04 14:43 ` Christoffer Dall
2015-08-04 15:03 ` Shannon Zhao
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