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From: Andy Lutomirski <luto@kernel.org>
Date: Tue, 5 Dec 2017 13:49:31 -0800
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Subject: Re: [patch 00/60] x86/kpti: Kernel Page Table Isolation (was KAISER)
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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        Dave Hansen <dave.hansen@intel.com>, Borislav Petkov <bpetkov@suse.de>,
        Greg KH <gregkh@linuxfoundation.org>, Kees Cook <keescook@google.com>,
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Random thought for the future: KPTI will make it possible to avoid
global IPI broadcasts on kernel flushes as we discussed, incorrectly,
two years ago at LPC.  This could be nice.