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Re: [PATCH] xen/arm: do not try to add pci-domain for disabled devices
- To: Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>
- Date: Thu, 28 Oct 2021 11:11:23 +0000
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "iwj@xxxxxxxxxxxxxx" <iwj@xxxxxxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Rahul Singh <rahul.singh@xxxxxxx>
- Delivery-date: Thu, 28 Oct 2021 11:11:45 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHXyw3lMiQK+jRYtUWdkzZ53OfPJavnJMeAgABhyQCAALX3gIAAA8+AgAAAg4CAAAIfAA==
- Thread-topic: [PATCH] xen/arm: do not try to add pci-domain for disabled devices
On 28.10.21 14:03, Julien Grall wrote:
>
>
> On 28/10/2021 12:01, Oleksandr Andrushchenko wrote:
>> Hi, Julien!
>>
>> [snip]
>> On 28.10.21 13:48, Julien Grall wrote:
>>> Hi Stefano,
>>>
>>> Looking at linux/arch/arm64/boot/dts/, there are a few Device-Tree that
>>> contain the property "linux,pci-domain". All of them seems to also add it
>>> for disabled hostbridges.
>>>
>>> However, I am under the impression that it is more common to have a
>>> Devide-Tree without any property "linux,pci-domain". When PCI support is
>>> enabled, Xen will generate the domain ID for the hostbridge and write it to
>>> the DT.
>>>
>>> This doesn't work for disabled hostbridge and I think this is Oleksandr's
>>> problem. @Oleksandr can you confirm it?
>> Yes, what I have is a disabled node without "linux,pci-domain"
>
> Just to confirm, is it the same for enabled hostbridges?
None of the bridges have "linux,pci-domain" in my device trees
>
> Cheers,
>
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