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Re: [PATCH v6 09/11] xen: Split HAS_DEVICE_TREE in two
- To: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 9 Jul 2025 16:31:00 +0200
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- Cc: Alejandro Vallejo <agarciav@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>, Alistair Francis <alistair.francis@xxxxxxx>, Bob Eshleman <bobbyeshleman@xxxxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, Dario Faggioli <dfaggioli@xxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, George Dunlap <gwd@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 09 Jul 2025 14:31:26 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 08.07.2025 20:07, Alejandro Vallejo wrote:
> From: Alejandro Vallejo <agarciav@xxxxxxx>
>
> Moving forward the idea is for there to be:
>
> 1. Basic DT support: used by dom0less/hyperlaunch.
> 2. Full DT support: used for device discovery and HW setup.
>
> Rename HAS_DEVICE_TREE to HAS_DEVICE_TREE_DISCOVERY to describe (2) and
> create a new DEVICE_TREE_PARSE to describe (1).
>
> Have DEVICE_TREE_PARSE selected by both HAS_DEVICE_TREE_DISCOVERY and
> DOM0LESS_BOOT.
>
> Add a dependency on STATIC_MEMORY for discovery, as it relies on
> the memory map itself being described on the DTB.
>
> Signed-off-by: Alejandro Vallejo <agarciav@xxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx> # iommu
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