linux-kernel - Re: [RFC PATCH 2/7] x86/sci: add core implementation for system call isolation

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Message-ID: <alpine.LRH.2.21.1904300425200.20645@namei.org>
Date:   Tue, 30 Apr 2019 04:26:59 +1000 (AEST)
From:   James Morris <jmorris@...ei.org>
To:     Ingo Molnar <mingo@...nel.org>
cc:     Andy Lutomirski <luto@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Alexandre Chartre <alexandre.chartre@...cle.com>,
        Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        Jonathan Adams <jwadams@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Paul Turner <pjt@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linux-MM <linux-mm@...ck.org>,
        LSM List <linux-security-module@...r.kernel.org>,
        X86 ML <x86@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC PATCH 2/7] x86/sci: add core implementation for system call
 isolation

On Sat, 27 Apr 2019, Ingo Molnar wrote:

>  - A C language runtime that is a subset of current C syntax and 
>    semantics used in the kernel, and which doesn't allow access outside 
>    of existing objects and thus creates a strictly enforced separation 
>    between memory used for data, and memory used for code and control 
>    flow.

Might be better to start with Rust.


-- 
James Morris
<jmorris@...ei.org>