linux-kernel - RE: [PATCH v8 00/33] x86: enable FRED for x86-64

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]

Message-ID: <SA1PR11MB67348E971CE0137282087809A8959@SA1PR11MB6734.namprd11.prod.outlook.com>
Date:   Mon, 10 Apr 2023 20:52:33 +0000
From:   "Li, Xin3" <xin3.li@...el.com>
To:     "Hansen, Dave" <dave.hansen@...el.com>,
        Borislav Petkov <bp@...en8.de>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "andrew.cooper3@...rix.com" <andrew.cooper3@...rix.com>,
        "Christopherson,, Sean" <seanjc@...gle.com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>,
        "jiangshanlai@...il.com" <jiangshanlai@...il.com>,
        "Kang, Shan" <shan.kang@...el.com>,
        "Lutomirski, Andy" <luto@...nel.org>
Subject: RE: [PATCH v8 00/33] x86: enable FRED for x86-64

> > Is FRED in any hardware incarnation to rush it?
> 
> Which reminds me...  It is always appreciated when hardware vendors can put a
> stake in the ground about where and how a feature will show up.
> It's great that you said that it is SIMICS-only for now.  That's a start.
> 
> But, if you could, for instance say things like (and I'm totally pulling these out of
> my rear end):
> 
> 	FRED will be available only on server CPUs or
> 	FRED will be available across all Intel CPUs or
> 	FRED will start showing up in CPUs that are released
> 	in roughly 2033
> 
> it would be nice to know that.
> 
> Here's what I said for protection keys, for example:
> 
> > https://lore.kernel.org/linux-mm/20160212210152.9CAD15B0@viggo.jf.intel.com/

Good point, I will find out what I could provide in LKML and update later.

Thanks!
  Xin