linux-kernel - Re: [PATCH] x86/kernel/cpu/amd.c: don't apply the lahf

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Message-ID: <20170713063203.GA29024@nazgul.tnic>
Date:   Thu, 13 Jul 2017 08:32:03 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Mikulas Patocka <mpatocka@...hat.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, kvm-ML <kvm@...r.kernel.org>
Subject: Re: [PATCH] x86/kernel/cpu/amd.c: don't apply the lahf_lm workaround
 in a hypervisor

On Wed, Jul 12, 2017 at 10:27:44PM -0400, Mikulas Patocka wrote:
> It is not strictly needed, but it is annoying. I work in the console and 
> it is annoying to see these "unhandled rdmsr" messages printed over the 
> screen every time I reboot a virtual machine.

Those messages are already pr_debug_ratelimited(). Fix your loglevel to
not see them.

-- 
Regards/Gruss,
    Boris.

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