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Date:   Tue, 18 Feb 2020 20:51:30 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     "Luck, Tony" <tony.luck@intel.com>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andy Lutomirski <luto@kernel.org>, x86-ml <x86@kernel.org>,
        lkml <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] #MC mess
Message-ID: <20200218195130.GO14449@zn.tnic>
References: <20200218173150.GK14449@zn.tnic>
 <3908561D78D1C84285E8C5FCA982C28F7F57B937@ORSMSX115.amr.corp.intel.com>
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On Tue, Feb 18, 2020 at 06:20:38PM +0000, Luck, Tony wrote:
> > Anything else I'm missing? It is likely...
> 
> +	hw_breakpoint_disable();
> +	static_key_disable(&__tracepoint_read_msr.key);
> +	tracing_off();
> +
>  	ist_enter(regs);
> 
> How about some code to turn all those back on for a recoverable (where
> we actually recovered) #MC?

The use case being?

-- 
Regards/Gruss,
    Boris.

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