linux-kernel - Re: [PATCH] x86/amd: Work around Erratum 1386

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Message-ID: <20230307185632.GDZAeI4LwBDUU3/OP9@fat_crate.local>
Date:   Tue, 7 Mar 2023 19:56:32 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Andrew Cooper <andrew.cooper3@...rix.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Tavis Ormandy <taviso@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Alexander Monakov <amonakov@...ras.ru>
Subject: Re: [PATCH] x86/amd: Work around Erratum 1386 - XSAVES malfunction
 on context switch

On Tue, Mar 07, 2023 at 06:22:01PM +0000, Andrew Cooper wrote:
> Well yes - more and more reports of impacted systems.
> 
> Having the full list of affected models is great and all, but how is it
> going to change this patch as a workaround ?

We don't have to clear the feature flag on those systems which have
a fix.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette