From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32E06C34022 for ; Wed, 19 Feb 2020 07:50:40 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 83CDE2176D for ; Wed, 19 Feb 2020 07:50:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="vDMncoWz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83CDE2176D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-17843-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 9527 invoked by uid 550); 19 Feb 2020 07:50:34 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 9506 invoked from network); 19 Feb 2020 07:50:33 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582098621; bh=n9/IYLfWjgkCKFVGCPxr4KX26RCkPAV8w7mDru6LtEM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=vDMncoWz6cyx/LEWprHHL1KKF8u2M0zVhoV3U7QW96vnLDpV9SpUz/C8WhZ/F6KQ9 YncQJYbHErBSsNhGEwfBpLM0CHztjSaRJpeHZxAq+YnK2huwndGdG3vj4fJlNo7pip GuGWPMKe8h+xvf5GvRLEulvNK6ibg/YYZE7740ro= Date: Wed, 19 Feb 2020 07:50:17 +0000 From: Marc Zyngier To: Sami Tolvanen Cc: Will Deacon , Catalin Marinas , Steven Rostedt , Masami Hiramatsu , Ard Biesheuvel , Mark Rutland , james.morse@arm.com, Dave Martin , Kees Cook , Laura Abbott , Nick Desaulniers , Jann Horn , Miguel Ojeda , Masahiro Yamada , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v8 09/12] arm64: disable SCS for hypervisor code Message-ID: <20200219075017.41e17f08@why> In-Reply-To: <20200219000817.195049-10-samitolvanen@google.com> References: <20191018161033.261971-1-samitolvanen@google.com> <20200219000817.195049-1-samitolvanen@google.com> <20200219000817.195049-10-samitolvanen@google.com> Organization: Approximate X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: samitolvanen@google.com, will@kernel.org, catalin.marinas@arm.com, rostedt@goodmis.org, mhiramat@kernel.org, ard.biesheuvel@linaro.org, mark.rutland@arm.com, james.morse@arm.com, Dave.Martin@arm.com, keescook@chromium.org, labbott@redhat.com, ndesaulniers@google.com, jannh@google.com, miguel.ojeda.sandonis@gmail.com, yamada.masahiro@socionext.com, clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Tue, 18 Feb 2020 16:08:14 -0800 Sami Tolvanen wrote: > Disable SCS for code that runs at a different exception level by > adding __noscs to __hyp_text. > > Suggested-by: James Morse > Signed-off-by: Sami Tolvanen Acked-by: Marc Zyngier M. -- Jazz is not dead. It just smells funny...