linux-kernel - Re: [PATCH V2] x86/apic: Stop the TSC Deadline timer during lapic timer shutdown

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: <CAJZ5v0hF381EHwO7AECgOM08kAQjppq3x9f2e-UHQYdYySCwBg@mail.gmail.com>
Date: Fri, 11 Oct 2024 12:25:29 +0200
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Dave Hansen <dave.hansen@...el.com>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>, Zhang Rui <rui.zhang@...el.com>, tglx@...utronix.de, 
	mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com, 
	rafael.j.wysocki@...el.com, x86@...nel.org, linux-pm@...r.kernel.org, 
	hpa@...or.com, peterz@...radead.org, thorsten.blum@...lux.com, 
	yuntao.wang@...ux.dev, tony.luck@...el.com, len.brown@...el.com, 
	srinivas.pandruvada@...el.com, linux-kernel@...r.kernel.org, 
	stable@...r.kernel.org
Subject: Re: [PATCH V2] x86/apic: Stop the TSC Deadline timer during lapic
 timer shutdown

On Fri, Oct 11, 2024 at 2:43 AM Dave Hansen <dave.hansen@...el.com> wrote:
>
> How about something like the completely untested attached patch?
>
> IMNHO, it improves on what was posted here because it draws a parallel
> with an AMD erratum and also avoids writes to APIC_TMICT that would get
> ignored anyway.

Please feel free to add

Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

to this one when it's ready.