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Date:   Fri, 29 May 2020 00:48:35 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Lai Jiangshan <jiangshanlai+lkml@gmail.com>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Andy Lutomirski <luto@amacapital.net>,
        LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
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        Sean Christopherson <sean.j.christopherson@intel.com>,
        andrew.cooper3@citrix.com, daniel.thompson@linaro.org
Subject: Re: [PATCH 0/6] x86/entry: disallow #DB more
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On Fri, May 29, 2020 at 06:42:46AM +0800, Lai Jiangshan wrote:
> On Fri, May 29, 2020 at 4:25 AM Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > These patches disallow #DB during NMI/#MC and allow removing a lot of fugly code.
> >
> 
> Hello
> 
> Will #DB be allowed in #DF?

No, that whole thing is noinstr.