linux-kernel - Re: [patch V4 part 2 18/18] x86/kvm/svm: Move guest enter/exit into .noinstr.text

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Date:   Thu, 7 May 2020 16:47:16 +0200
From:   Alexandre Chartre <alexandre.chartre@...cle.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, "Paul E. McKenney" <paulmck@...nel.org>,
        Andy Lutomirski <luto@...nel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Brian Gerst <brgerst@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Will Deacon <will@...nel.org>
Subject: Re: [patch V4 part 2 18/18] x86/kvm/svm: Move guest enter/exit into
 .noinstr.text


On 5/5/20 3:41 PM, Thomas Gleixner wrote:
> Move the functions which are inside the RCU off region into the
> non-instrumentable text section.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Cc: Paolo Bonzini <pbonzini@...hat.com>
> Cc: Sean Christopherson <sean.j.christopherson@...el.com>
> ---
>   arch/x86/kvm/svm/svm.c     |  102 ++++++++++++++++++++++++---------------------
>   arch/x86/kvm/svm/vmenter.S |    2
>   2 files changed, 57 insertions(+), 47 deletions(-)
> 

I have reviewed this series and only sent minor comments. So for
all patches of part 2:

Reviewed-by: Alexandre Chartre <alexandre.chartre@...cle.com>

alex.