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Re: [PATCH v7 4/5] xen/arm: scmi: introduce SCI SCMI SMC multi-agent driver
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Oleksii Moisieiev <Oleksii_Moisieiev@xxxxxxxx>
- Date: Fri, 16 Jan 2026 16:48:21 +0000
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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: Fri, 16 Jan 2026 16:48:36 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHchYPEY703sAu32kaCSJHhjFUjhrVS+QWAgAILygA=
- Thread-topic: [PATCH v7 4/5] xen/arm: scmi: introduce SCI SCMI SMC multi-agent driver
On 15/01/2026 11:33, Jan Beulich wrote:
> 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
Hi Jan,
Thank you for pointing that out.
I will add the following note to the commit description:
"
Additionally, this patch adds documentation for the pre-existing
scmi-smc-passthrough command line option, which was previously
undocumented.
"
Does this look good to you?
BR,
Oleksii
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