linux-kernel - Re: [PATCH] x86/umip: Add emulation for 64-bit processes

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Date:   Tue, 10 Sep 2019 08:28:28 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     hpa@...or.com
Cc:     Brendan Shanks <bshanks@...eweavers.com>,
        linux-kernel@...r.kernel.org,
        Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [PATCH] x86/umip: Add emulation for 64-bit processes


* hpa@...or.com <hpa@...or.com> wrote:

> I would strongly suggest that we change the term "emulation" to 
> "spoofing" for these instructions. We need to explain that we do *not* 
> execute these instructions the was the CPU would have, and unlike the 
> native instructions do not leak kernel information.

Ok, I've edited the patch to add the 'spoofing' wording where 
appropriate, and I also made minor fixes such as consistently 
capitalizing instruction names.

Can I also add your Reviewed-by tag?

So the patch should show up in tip:x86/asm today-ish, and barring any 
complications is v5.4 material.

Thanks,

	Ingo