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Re: [RFC PATCH] xen/kconfig: allow LATE_HWDOM config for ARM
- To: Sergiy Kibrik <sergiy_kibrik@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 19 Dec 2024 08:55:06 +0100
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- Cc: 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>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 19 Dec 2024 07:55:17 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 18.12.2024 11:00, Sergiy Kibrik wrote:
> 17.12.24 15:02, Jan Beulich:
>> On 17.12.2024 12:47, Sergiy Kibrik wrote:
>>> Allow to build ARM configuration with support for initializing hardware
>>> domain.
>>> On ARM it is only possible to start hardware domain in multiboot mode, so
>>> dom0less support is required.
>>
>> I don't follow this. Late hwdom is supposed to be started by a (minimal)
>> toolstack iirc.
>
> Yes, on x86 it's started by toolstack. This is not supported on ARM.
> However dom0less can already handle hardware domain initialization on
> ARM, without much of an additional changes.
Yet that's not "late hwdom" then, but "separate hwdom and ctrldom" or some
such.
Jan
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