linux-kernel - Re: [RFC PATCH 14/26] x86/alternatives: Handle native insns in text_poke

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Message-ID: <20200408111747.GV20713@hirez.programming.kicks-ass.net>
Date:   Wed, 8 Apr 2020 13:17:47 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ankur Arora <ankur.a.arora@...cle.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org, hpa@...or.com,
        jpoimboe@...hat.com, namit@...are.com, mhiramat@...nel.org,
        jgross@...e.com, bp@...en8.de, vkuznets@...hat.com,
        pbonzini@...hat.com, boris.ostrovsky@...cle.com,
        mihai.carabas@...cle.com, kvm@...r.kernel.org,
        xen-devel@...ts.xenproject.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [RFC PATCH 14/26] x86/alternatives: Handle native insns in
 text_poke_loc*()


On Tue, Apr 07, 2020 at 10:03:11PM -0700, Ankur Arora wrote:
> @@ -1071,10 +1079,13 @@ int notrace poke_int3_handler(struct pt_regs *regs)
>  			goto out_put;
>  	}
>  
> -	len = text_opcode_size(tp->opcode);
> +	if (desc->native)
> +		BUG();
> +

Subject: x86/alternatives: Handle native insns in text_poke_loc*()

That's not really handling, is it..