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Re: [RFC PATCH 01/11] x86: Add more granularity to the vendors in Kconfig
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>
- Date: Thu, 27 Nov 2025 13:37:30 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Jason Andryuk <jason.andryuk@xxxxxxx>, Xenia Ragiadakou <xenia.ragiadakou@xxxxxxx>, "Stefano Stabellini" <sstabellini@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 27 Nov 2025 12:37:44 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu Nov 27, 2025 at 10:59 AM CET, Jan Beulich wrote:
> On 26.11.2025 17:44, Alejandro Vallejo wrote:
>> This enables very aggressive DCE passes on single-vendor builds in later
>> patches, as it will allow most vendor checks to become statically chosen
>> branches. A lot of statics go away and a lot more inlining is allowed.
>>
>> In order to allow x86_vendor_is() to fold into constants, expand Kconfig
>> to have the full set of vendors. Adds Hygon, Centaur, Shanghai and the
>> default path.
>
> Oh, one more thing: There's x86_vendor_is() yet, so what it is going to be
> needs at least roughly explaining here.
>
> Jan
Fair enough.
Cheers,
Alejandro
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