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Re: Linux 6.12-rc2: xen-privcmd cannot be loaded in domU anymore


  • To: "Chen, Jiqian" <Jiqian.Chen@xxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
  • From: Jürgen Groß <jgross@xxxxxxxx>
  • Date: Wed, 9 Oct 2024 07:52:42 +0200
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  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
  • Delivery-date: Wed, 09 Oct 2024 05:52:53 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 09.10.24 05:41, Chen, Jiqian wrote:
On 2024/10/9 08:36, Marek Marczykowski-Górecki wrote:
Hi,

It looks like xen-privcmd now depends on xen-pciback, and the latter
(expectedly) fails to load in domU with -ENODEV. But that prevents
loading xen-privcmd too. And that's bad.
Sorry for introducing that and thank you for reporting it.

Maybe that dependency can be removed.
I used it to pass the combination of compilation(CONFIG_XEN_PRIVCMD=y && 
CONFIG_XEN_PCIDEV_BACKEND=m).
But from my patch, "IS_REACHABLE(CONFIG_XEN_PCIDEV_BACKEND)" is enough. And I 
have tested locally just now.
Juergen and Stefano, what's your opinion?

Please send a patch. :-)


Juergen

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