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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 11:01:59 +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 11:02:42 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Thread-index: AQHXyw3lMiQK+jRYtUWdkzZ53OfPJavnJMeAgABhyQCAALX3gIAAA8+A
  • Thread-topic: [PATCH] xen/arm: do not try to add pci-domain for disabled devices

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"

 


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