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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Tue, 9 Feb 2021 10:09:37 -0800
Message-ID: <CAHk-=wgNXnmxjm+kK1ufjHfQPOBbuD5w3CTkSe0azF3NNWEHHQ@mail.gmail.com>
Subject: Re: [GIT PULL] x86/urgent for v5.11-rc7
To:     Andy Lutomirski <luto@amacapital.net>
Cc:     Alexei Starovoitov <alexei.starovoitov@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Miroslav Benes <mbenes@suse.cz>,
        Peter Zijlstra <peterz@infradead.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Borislav Petkov <bp@suse.de>,
        Dave Hansen <dave.hansen@intel.com>, x86-ml <x86@kernel.org>,
        lkml <linux-kernel@vger.kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        live-patching@vger.kernel.org
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On Tue, Feb 9, 2021 at 8:55 AM Andy Lutomirski <luto@amacapital.net> wrote:
>
> Or we hack up #CP to handle this case. I don=E2=80=99t quite know how I f=
eel about this.

I think that's the sane model - if we've replaced the instruction with
'int3', and we end up getting #CP due to that, just do the #BP
handling.

Anything else would just be insanely complicated, I feel.

             Linus