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Re: [PATCH v3 1/2] xen: Add capabilities to get_domain_state

To: Jason Andryuk <jason.andryuk@xxxxxxx>
From: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Date: Tue, 22 Jul 2025 17:52:08 -0700 (PDT)
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>
Delivery-date: Wed, 23 Jul 2025 00:52:21 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Mon, 21 Jul 2025, Jason Andryuk wrote:
> Expose a domain's capabilities - control, hardware or xenstore - through
> stable get domain state hypercall.
> 
> The xenstore domain can use this information to assign appropriate
> permissions on connections.
> 
> Repurpose the 16bit pad field for this purpose.
> 
> Signed-off-by: Jason Andryuk <jason.andryuk@xxxxxxx>
> Reviewed-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

References:
- [PATCH v3 0/2] Expose capabilities in get_domain_state
  - From: Jason Andryuk
- [PATCH v3 1/2] xen: Add capabilities to get_domain_state
  - From: Jason Andryuk

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