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Date:      Thu, 27 Oct 2022 10:16:59 -0500
From:      Mike Karels <mike@karels.net>
To:        "Chen, Alvin W" <Weike.Chen@Dell.com>
Cc:        freebsd-current <freebsd-current@freebsd.org>
Subject:   Re: Status of Intel Hybrid CPU support (Alder Lake/Raptor Lake) support
Message-ID:  <CB6714BB-F070-436A-9324-1053648A7DE6@karels.net>
In-Reply-To: <PH0PR19MB49386F16177AC787CFFAD05C9E339@PH0PR19MB4938.namprd19.prod.outlook.com>
References:  <PH0PR19MB49386F16177AC787CFFAD05C9E339@PH0PR19MB4938.namprd19.prod.outlook.com>

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On 26 Oct 2022, at 22:29, Chen, Alvin W wrote:

> Any body know the status to support P Core and E Core?
> Now WA is: disable PCID.

Disabling vm.pmap.pcid_enabled is the best workaround for now.
There has been some progress in investigations in the background, but I
don=E2=80=99t think there is a permanent solution yet.

btw, I haven=E2=80=99t heard reports about Raptor Lake yet.  Do you know =
if it has
the same problems as Alder Lake on hybrids?  I would guess it does.

		Mike
>
> Regards,
> Alvin Chen
> Dell ThinOS | Dell - Comercial Client Group
> Teams/Zoom: weike_chen@dell.com<mailto:weike_chen@dell.com>
>
>
>
> Internal Use - Confidential



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