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Date:   Mon, 6 Apr 2020 08:39:02 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Christoph Hellwig <hch@infradead.org>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
        linux-kernel@vger.kernel.org,
        "Kenneth R. Crudup" <kenny@panix.com>,
        Jessica Yu <jeyu@kernel.org>,
        Rasmus Villemoes <rasmus.villemoes@prevas.dk>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Fenghua Yu <fenghua.yu@intel.com>,
        Xiaoyao Li <xiaoyao.li@intel.com>,
        Nadav Amit <nadav.amit@gmail.com>,
        Thomas Hellstrom <thellstrom@vmware.com>,
        Tony Luck <tony.luck@intel.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jann Horn <jannh@google.com>,
        Kees Cook <keescook@chromium.org>,
        David Laight <David.Laight@aculab.com>,
        Doug Covelli <dcovelli@vmware.com>
Subject: Re: [RFC PATCH] x86/split_lock: Disable SLD if an unaware
 (out-of-tree) module enables VMX
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On Mon, Apr 06, 2020 at 08:24:11AM -0700, Christoph Hellwig wrote:
> > and this
> > removes __get_vm_area() and with the ability to custom ranges. It also
> > removes map_vm_area() and replaces it with map_vm_area_nx() which kills
> > adding executable maps.

Also there seems to be various other ways to create exectuable mappings,
pretty much everything in vmalloc.c that gets a pgprot_t..