linux-kernel - Re: RDTSCP | IA32_TSC

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Message-ID: <Y33vzIy8Yw49R7am@linutronix.de>
Date:   Wed, 23 Nov 2022 11:02:52 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Borislav Petkov <bp@...en8.de>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: RDTSCP | IA32_TSC_AUX on x86-32

On 2022-11-23 10:59:29 [+0100], Borislav Petkov wrote:
> On Wed, Nov 23, 2022 at 10:46:07AM +0100, Sebastian Andrzej Siewior wrote:
> > Is the format OS specific and not for user purpose or could IA32_TSC_AUX
> > be setup on 32bit?
> 
> I don't see why not.
> 
> I mean, we wanna remove 32-bit but if you wanna still improve it...
> 
> :-)

Do we have a schedule for the removal? I mean we talk about it for
years…

Sebastian