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Re: [PATCH v7 4/5] xen/arm: scmi: introduce SCI SCMI SMC multi-agent driver
- To: Oleksii Moisieiev <Oleksii_Moisieiev@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 15 Jan 2026 10:33:37 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Grygorii Strashko <grygorii_strashko@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 15 Jan 2026 09:33:46 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 14.01.2026 19:29, Oleksii Moisieiev wrote:
> @@ -1107,6 +1115,15 @@ affinities to prefer but be not limited to the
> specified node(s).
>
> Pin dom0 vcpus to their respective pcpus
>
> +### scmi-smc-passthrough (ARM)
> +> `= <boolean>`
> +
> +The option is available when `CONFIG_SCMI_SMC` is compiled in, and allows to
> +enable SCMI SMC single agent interface for any, but only one guest domain,
> +which serves as Driver domain. The SCMI will be disabled for Dom0/hwdom and
> +SCMI nodes removed from Dom0/hwdom device tree.
> +(for example, thin Dom0 with Driver domain use-case).
> +
> ### dtuart (ARM)
> > `= path [:options]`
I appreciate missing doc for a pre-existing cmdline option to be introduced,
but: Why here (in two ways)? First, why in this patch, without it even being
mentioned in the description? And why in the middle of options starting with
'd', when the entire file means to be sorted?
Jan
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