From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 05 Oct 2021 13:54:06 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1mXj1K-0002oT-O2 for lore@lore.pengutronix.de; Tue, 05 Oct 2021 13:54:06 +0200 Received: from [2607:7c80:54:e::133] (helo=bombadil.infradead.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mXj1J-0005Ce-LX for lore@pengutronix.de; Tue, 05 Oct 2021 13:54:06 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Lnbf7Tva/wW4VqAPqSrVbH3mmRqor+aR+AAk4JpZiZA=; b=LrZPWAVbmYhFB+ x+aq3jVR18WQfH2MTu+G6Jo06jchyzCiEco12z6tSD1GSTGdZhqpCarwX/apceiq1/vATsYfW5IZN lERDY0fv59gxpUmRh5VV7Jgs83w06xxaSLO8VjWjhMCVM0qyUeIntHnExZfc+UVYZ08V/MHOLqCAt welqd+RewQZfXU1dznlJfLy7UfH8To49VN7ZUg4AQ09obmWl5dSSoPHVhgTIHMOxn7/ZoUn7eGVCe BKhbFHIbQiYCU79Nd72q1El69kDj4ZhTjoR4KEeE89XTmpu1mRfWNYF1sA9aVD1VVEzAzOZBScHbd 8qDV6Msp11AAZhFSnfdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mXizh-00AESR-GR; Tue, 05 Oct 2021 11:52:25 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mXizd-00AERF-72 for barebox@lists.infradead.org; Tue, 05 Oct 2021 11:52:22 +0000 Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mXizZ-000505-Rp; Tue, 05 Oct 2021 13:52:17 +0200 Received: from sha by ptx.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1mXizZ-0003f7-I2; Tue, 05 Oct 2021 13:52:17 +0200 Date: Tue, 5 Oct 2021 13:52:17 +0200 From: Sascha Hauer To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: <20211005115217.GP28453@pengutronix.de> References: <20211005113613.3609-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20211005113613.3609-1-a.fatoum@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-IRC: #ptxdist @freenode X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-Uptime: 13:52:00 up 229 days, 15:15, 146 users, load average: 0.47, 0.39, 0.29 User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211005_045221_285513_EDD82220 X-CRM114-Status: GOOD ( 21.00 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:7c80:54:e::133 (failed) X-Broken-Reverse-DNS: no host name for IP address 2607:7c80:54:e::133 X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-2.5 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,PTX_BROKEN_RDNS,RCVD_IN_DNSWL_MED,RDNS_NONE, SPF_HELO_NONE,SPF_NONE,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.2 Subject: Re: [PATCH] commands: smc: disable -c (start cpu) test option for ARMv8 X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) On Tue, Oct 05, 2021 at 01:36:13PM +0200, Ahmad Fatoum wrote: > This option is meant for debugging and was only tested on an ARMv7 CPU. > On ARMv8, the handshake times out and the code executing on the second > CPU invokes undefined behavior by modifying the stack base from a non- > naked function. This led so far to a warning, which went unnoticed, but > a follow-up commit will make it an error to use arm_setup_stack on > ARM64. Prepare for this by disabling -c usage on ARM64. > > Signed-off-by: Ahmad Fatoum > --- > Please reorder before "ARM: document arm_setup_stack() pitfalls" > --- > commands/smc.c | 14 ++++++++++---- > 1 file changed, 10 insertions(+), 4 deletions(-) Applied, thanks Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox