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Re: [PATCH v3 0/4] xen/arm64: allow to make aarch32 el1 support optional
- To: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
- From: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Date: Fri, 3 Oct 2025 17:07:44 +0000
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Fri, 03 Oct 2025 17:07:54 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHcIvTyx9z2i0DJTUamNSgeNa0v/g==
- Thread-topic: [PATCH v3 0/4] xen/arm64: allow to make aarch32 el1 support optional
Hi Grygorii,
Grygorii Strashko <grygorii_strashko@xxxxxxxx> writes:
> From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
>
> Hi,
>
> During review of v1 [1] of this series Julien Grall raised concern that
> "If the desire is to make 32-bit domain optional on Arm64.
> Then I think it would be better to pass the domain type when the domain is
> created (IOW add an extra flags to XEN_DOMCTL_createdomain)." for which
> I've sent patches attempting to start solving the problem [2] and try to
> probe guest kernels before creating domains. While proposed changes [2] is
> under review and hence there are definitely more work is required I'd
> appreciated if current series can be considered as it's Arm specific only
> and working (and tested) with current Xen in its current state.
I am not sure that this is a great idea. Domain creation process is
convoluted enough and your patch 3 makes it more convoluted and hard to
follow. Probably it is better to wait while [2] series will be merged
and then revisit this series.
[...]
--
WBR, Volodymyr
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