linux-kernel - Re: [RFC KVM 25/27] kvm/isolation: implement actual KVM isolation enter/exit

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Message-ID: <20190513151637.GA2589@hirez.programming.kicks-ass.net>
Date:   Mon, 13 May 2019 17:16:37 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Alexandre Chartre <alexandre.chartre@...cle.com>
Cc:     pbonzini@...hat.com, rkrcmar@...hat.com, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        dave.hansen@...ux.intel.com, luto@...nel.org, kvm@...r.kernel.org,
        x86@...nel.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        konrad.wilk@...cle.com, jan.setjeeilers@...cle.com,
        liran.alon@...cle.com, jwadams@...gle.com
Subject: Re: [RFC KVM 25/27] kvm/isolation: implement actual KVM isolation
 enter/exit

On Mon, May 13, 2019 at 04:38:33PM +0200, Alexandre Chartre wrote:
> diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
> index a4db7f5..7ad5ad1 100644
> --- a/arch/x86/mm/tlb.c
> +++ b/arch/x86/mm/tlb.c
> @@ -444,6 +444,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
>  		switch_ldt(real_prev, next);
>  	}
>  }
> +EXPORT_SYMBOL_GPL(switch_mm_irqs_off);
>  
>  /*
>   * Please ignore the name of this function.  It should be called

NAK