Re: XSAVE / RDPKRU on Intel 11th Gen Core CPUs

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Subject: Re: XSAVE / RDPKRU on Intel 11th Gen Core CPUs
From: Dave Hansen <dave.hansen@xxxxxxxxx>
Date: Mon, 8 Nov 2021 14:00:51 -0800
Cc: Guenter Roeck <groeck@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, stable@xxxxxxxxxxxxxxx, the arch/x86 maintainers <x86@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <cb682c8a-255e-28e5-d4e0-0981c2ab6ffd@intel.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

One more thing...  Does the protection_keys kernel selftest hit any
errors on this same setup?  It does a lot of PKRU sanity checking and
I'm a bit surprised it hasn't caught something yet.

Follow-Ups:
- Re: XSAVE / RDPKRU on Intel 11th Gen Core CPUs
  - From: Brian Geffon
- Re: XSAVE / RDPKRU on Intel 11th Gen Core CPUs
  - From: Brian Geffon

References:
- XSAVE / RDPKRU on Intel 11th Gen Core CPUs
  - From: Brian Geffon
- Re: XSAVE / RDPKRU on Intel 11th Gen Core CPUs
  - From: Dave Hansen

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