From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 30 Jun 2025 09:47:02 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uW9EE-00CYCz-1y for lore@lore.pengutronix.de; Mon, 30 Jun 2025 09:47:02 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uW9ED-0005j0-44 for lore@pengutronix.de; Mon, 30 Jun 2025 09:47:02 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:To: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-Id:Date:Subject: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=FQ/g5XrrKHVcSEJHbPuMevXW1mFViqGzYixeRRbX2hE=; b=oGBs1UQeY87eom XHHRzTttLHe/WzJQO7aVxT3cSOCSm0XiFEzuugBo3K3HePFs/WS1t3kWQkyBwdSUnVkREoR+8hGRt wEsk3I2sxsI3gwOuC2IrtRPL7eh1KWD97gd/Eh0i5+JvoPVWZxERh07o6wpwnUjy8wn+cR6JhQk9s qmbwWJL8VSMls6pRBaBUdZx7zo1ifZW76Te7dPu4p8iUnGThGyflu8JNqo97xLPkxHXAW/LMuzi1H xV2czKG4s2fNN3sbevJG6gxjnpn/oKCB/B1IXI9DR3B/8ldFkSNtHcvvbSJ7wQBEg+yeO3TPxx4K6 WNaLDQrREaM+AGLElTUA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uW9Dl-00000001Uio-01OC; Mon, 30 Jun 2025 07:46:33 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uW9DB-00000001UUj-3WfI for barebox@lists.infradead.org; Mon, 30 Jun 2025 07:46:01 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uW9D2-0004O5-GO; Mon, 30 Jun 2025 09:45:48 +0200 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uW9D2-00648G-0i; Mon, 30 Jun 2025 09:45:48 +0200 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1uW9D2-004Sjo-0L; Mon, 30 Jun 2025 09:45:48 +0200 From: Sascha Hauer Date: Mon, 30 Jun 2025 09:45:42 +0200 Message-Id: <20250630-arm-optee-early-helper-v2-0-c8cce3ae42b0@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAKZAYmgC/4WNTQ6CMBBGr0K6dkxpkB9X3sOwqO0Ak2DbTCuBE O5u5QIu30u+9+0iIhNGcS92wbhQJO8yqEshzKTdiEA2s1BS3WStGtD8Bh8SIqDmeYMJ54AMtW2 7yg5KydKIPA6MA61n+Nlnnigmz9v5s5Q/+ze5lCChesmuxVabxthHQDd+EntH69Wi6I/j+AKXw hnZwQAAAA== X-Change-ID: 20250627-arm-optee-early-helper-6d894df2201c To: BAREBOX X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1751269547; l=4086; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=cvRvXK6VcN+ljGuVyL+a/em5SqMyJWoTnqiHJSI9aA8=; b=6Z/84nI6dAVLdO6ysvoVRZfuvfUvppbaX9/VgDr5W0w9H3kzZMFuWLmZK26m5DHGp8oRbGXLZ VmIuSaV58hXDYu+OQaI5bA1IMJiTEY5pyoRbplJfr/uMFtJPOCWToME X-Developer-Key: i=s.hauer@pengutronix.de; a=ed25519; pk=4kuc9ocmECiBJKWxYgqyhtZOHj5AWi7+d0n/UjhkwTg= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250630_004557_911399_D7FBB3D4 X-CRM114-Status: GOOD ( 17.18 ) 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: , Cc: Ahmad Fatoum , Marco Felsch Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::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.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 00/14] i.MX6 TZASC and OP-TEE early helpers X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) This series combines Marcos "i.MX6Q TZASC and OP-TEE early helpers" [1] and my series fixing chainloading barebox on OP-TEE enabled i.MX6ul platforms [2] into one. Changes to Marcos series are: - rename imx6q_tzc380_is_enabled() to imx6q_tzc380_is_bypassed() as the function really only detects if the bypass bits are set correctly and not if the tzc380 is enabled. - Add i.MX6UL variants of the functions Marco created for i.MX6DQ - Marco created a mx6_start_optee_early() function that has a switch/case for the actual SoC type. I have split that into SoC specific functions so that we don't have to carry the binary weight when only one specific SoC is needed Changes to my series: - Ahmad mentioned in [3] that detecting if we are chainloaded based on a register passed from the 1st stage not robust and might have security issues. I am therefore now checking if the TZASC is accessible or not. As a special bonus this series brings us exception handling support in PBL for ARMv7/ARMv8. This done to implement data_abort_mask() which we need for the TZASC-is-accessible check, but will also be useful for debugging issues in the PBL. [1] https://lore.kernel.org/20250626144527.416697-1-m.felsch@pengutronix.de [2] https://lore.kernel.org/20250626140329.418033-1-s.hauer@pengutronix.de [3] https://lore.kernel.org/70b41f3b-4329-48f7-827f-1924e002ab04@pengutronix.de Signed-off-by: Sascha Hauer --- Changes in v2: - update some commit messages according to review - Drop patch to drop start_optee_early() - it's unused but referenced in the documentation - Add config symbol for TZASC and select it where necessary - Collect R-B from Ahmad, Marco - Link to v1: https://lore.barebox.org/20250627-arm-optee-early-helper-v1-0-4b098e8ac7cd@pengutronix.de --- Marco Felsch (5): ARM: i.MX6QDL: add imxcfg helper to configure the TZASC1/2 ARM: i.MX6Q: add imx6_get_mmdc_sdram_size ARM: mach-imx: tzasc: add region configure helpers ARM: mach-imx: tzasc: add imx6[q|ul]_tzc380_is_bypassed() ARM: optee-early: add mx6_start_optee_early helper Sascha Hauer (9): pbl: add panic_no_stacktrace() arch: Allow data_abort_mask() in PBL ARM: add exception handling support for PBL ARM: i.MX: add config symbol for TZASC ARM: mach-imx: tzasc: add imx6[q|ul]_tzc380_early_ns_region1() ARM: i.MX: add imx6_can_access_tzasc() ARM: i.MX: tqma6ulx: fix barebox chainloading with OP-TEE enabled ARM: i.MX: Webasto ccbv2: fix barebox chainloading with OP-TEE enabled ARM: i.MX: tqma6ulx: use ENTRY_FUNCTION_WITHSTACK Documentation/user/optee.rst | 22 ++- arch/Kconfig | 3 + arch/arm/Kconfig | 10 + arch/arm/boards/tqma6ulx/lowlevel.c | 27 +-- arch/arm/boards/webasto-ccbv2/lowlevel.c | 24 +-- arch/arm/cpu/Makefile | 1 + arch/arm/cpu/interrupts_32.c | 14 +- arch/arm/cpu/interrupts_64.c | 10 +- arch/arm/cpu/uncompress.c | 2 + arch/arm/include/asm/barebox-arm.h | 8 + arch/arm/lib/pbl.lds.S | 4 + arch/arm/lib32/optee-early.c | 42 ++++ arch/arm/mach-imx/Kconfig | 6 + arch/arm/mach-imx/Makefile | 2 +- arch/arm/mach-imx/esdctl.c | 5 + arch/arm/mach-imx/tzasc.c | 328 +++++++++++++++++++++++++++++++ include/abort.h | 3 +- include/mach/imx/esdctl.h | 1 + include/mach/imx/imx6q-tzasc.h | 8 + include/mach/imx/tzasc.h | 5 + include/tee/optee.h | 4 + pbl/misc.c | 3 + 22 files changed, 489 insertions(+), 43 deletions(-) --- base-commit: 796506e790596a0b59c186651cf98112eafe01c5 change-id: 20250627-arm-optee-early-helper-6d894df2201c Best regards, -- Sascha Hauer