linux-kernel - Re: [PATCH V8 02/44] Documentation/protection-keys: Clean up documentation for User Space pkeys

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 28 Jan 2022 14:39:10 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     ira.weiny@...el.com, Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Dan Williams <dan.j.williams@...el.com>
Cc:     Fenghua Yu <fenghua.yu@...el.com>,
        Rick Edgecombe <rick.p.edgecombe@...el.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V8 02/44] Documentation/protection-keys: Clean up
 documentation for User Space pkeys

On 1/27/22 09:54, ira.weiny@...el.com wrote:
> +PKeys Userspace (PKU) is a feature which is found on Intel's Skylake "Scalable
> +Processor" Server CPUs and later.  And it will be available in future
> +non-server Intel parts and future AMD processors.

The non-server parts are quite available these days.  I'm typing on one
right now:

	model name	: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

This can probably say:

Protection Keys for Userspace (PKU) can be found on:
 * Intel server CPUs, Skylake and later
 * Intel client CPUs, Tiger Lake (11th Gen Core) and later
 * Future AMD CPUs

It would be great if the AMD folks can elaborate on that a bit, but I
understand it might not be possible if the CPUs aren't out yet.