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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: Mon, 19 Jan 2026 09:07:37 +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: Mon, 19 Jan 2026 08:07:46 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 16.01.2026 17:48, Oleksii Moisieiev wrote:
>
>
> 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?
>
> 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?
Sure.
Jan
|
