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[65.99.196.166]) by mx.google.com with ESMTPS id b83si17597516oia.79.2019.04.29.11.27.39 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Apr 2019 11:27:39 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of jmorris@namei.org designates 65.99.196.166 as permitted sender) client-ip=65.99.196.166; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of jmorris@namei.org designates 65.99.196.166 as permitted sender) smtp.mailfrom=jmorris@namei.org Received: from localhost (localhost [127.0.0.1]) by namei.org (8.14.4/8.14.4) with ESMTP id x3TIQxlq021250; Mon, 29 Apr 2019 18:26:59 GMT Date: Tue, 30 Apr 2019 04:26:59 +1000 (AEST) From: James Morris To: Ingo Molnar cc: Andy Lutomirski , Mike Rapoport , LKML , Alexandre Chartre , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Ingo Molnar , James Bottomley , Jonathan Adams , Kees Cook , Paul Turner , Peter Zijlstra , Thomas Gleixner , Linux-MM , LSM List , X86 ML , Linus Torvalds , Peter Zijlstra , Andrew Morton Subject: Re: [RFC PATCH 2/7] x86/sci: add core implementation for system call isolation In-Reply-To: <20190427104615.GA55518@gmail.com> Message-ID: References: <1556228754-12996-1-git-send-email-rppt@linux.ibm.com> <1556228754-12996-3-git-send-email-rppt@linux.ibm.com> <20190426083144.GA126896@gmail.com> <20190426095802.GA35515@gmail.com> <20190427084752.GA99668@gmail.com> <20190427104615.GA55518@gmail.com> User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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