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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D2B9ECAAD1 for ; Wed, 31 Aug 2022 17:42:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231776AbiHaRmK (ORCPT ); Wed, 31 Aug 2022 13:42:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231531AbiHaRld (ORCPT ); Wed, 31 Aug 2022 13:41:33 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF6E81EAE4; Wed, 31 Aug 2022 10:40:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A734561B4E; Wed, 31 Aug 2022 17:40:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 079EEC433C1; Wed, 31 Aug 2022 17:40:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661967649; bh=jzTCmjZs6oRV5vAtJdRT/DcBLCSdXLMxCOdEalCI1qI=; h=In-Reply-To:References:Subject:From:Cc:To:Date:From; b=aGsnA5+QkIomOr8vlRBARUc1AF8099TTw/GMr5zXmULF9QAeKNmPrcQ5AjUMeCjgM 2W/tj9UehXBp6b3lnHgB8VS1bq8THaMSNwyO5ZgxowPW847AR7uZEKHvr+1iPBVP6n hpVoK+VYmSc9CuaI1Uepp0iHoF9tzOeJBIO4EzTzFvTVQcviizrYyKl2nBb4LsjbfR J84KDbXe+CBvcgXt4cB/XvO+MLgZqCNRIaKPW9dsnvWHW4ggNyBHA1rIqQh+54p9c5 SGZ9GhhpnktNgOKWUNqIdr3QlQApH6U+ICyA3XgxZOPBgQsAhWhCGTbKo9T6bsCSaA XBLu4o4+jQiHQ== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <1655004286-11493-8-git-send-email-quic_fenglinw@quicinc.com> References: <1655004286-11493-1-git-send-email-quic_fenglinw@quicinc.com> <1655004286-11493-8-git-send-email-quic_fenglinw@quicinc.com> Subject: Re: [RESEND PATCH v6 07/10] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes From: Stephen Boyd Cc: quic_collinsd@quicinc.com, quic_subbaram@quicinc.com, quic_fenglinw@quicinc.com, tglx@linutronix.de, maz@kernel.org, David Collins To: Fenglin Wu , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 31 Aug 2022 10:40:47 -0700 User-Agent: alot/0.10 Message-Id: <20220831174049.079EEC433C1@smtp.kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Quoting Fenglin Wu (2022-06-11 20:24:43) > From: David Collins >=20 > The system crashes due to an access permission violation when > writing to a PMIC peripheral which is not owned by the current > ee. Add a check for PMIC arbiter version 5 for such invalid > write requests and return an error instead of crashing the > system. >=20 > Signed-off-by: David Collins > Signed-off-by: Fenglin Wu > --- Applied to spmi-next