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Re: [PATCH v2 1/5] xen/arm: Create tee command line parameter
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
- Date: Tue, 11 Mar 2025 09:16:13 +0000
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- Cc: "jens.wiklander@xxxxxxxxxx" <jens.wiklander@xxxxxxxxxx>, 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>, Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 11 Mar 2025 09:31:14 +0000
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- Thread-topic: [PATCH v2 1/5] xen/arm: Create tee command line parameter
Hi Jan,
> On 11 Mar 2025, at 09:35, Jan Beulich <jbeulich@xxxxxxxx> wrote:
>
> On 10.03.2025 15:50, Bertrand Marquis wrote:
>> --- a/docs/misc/xen-command-line.pandoc
>> +++ b/docs/misc/xen-command-line.pandoc
>> @@ -2651,6 +2651,20 @@ Specify the per-cpu trace buffer size in pages.
>>
>> Flag to enable TSC deadline as the APIC timer mode.
>>
>> +### tee
>> +> `= <string>`
>
> This wants an arch restriction, like we have for other command line options
> supported only by one arch.
Oh yes definitely.
I will fix that in the next version.
Thanks
Bertrand
>
> Jan
>
>> +Specify the TEE mediator to be probed and use.
>> +
>> +The default behaviour is to probe all supported TEEs supported by Xen and
>> use
>> +the first one successfully probed. When this parameter is passed, Xen will
>> +probe only the TEE mediator passed as argument and boot will fail if this
>> +mediator is not properly probed or if the requested TEE is not supported by
>> +Xen.
>> +
>> +This parameter can be set to `optee` of `ffa` if the corresponding mediators
>> +are compiled in.
>> +
>> ### tevt_mask
>>> `= <integer>`
>>
>
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