From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 03 Aug 2021 11:46:17 +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 1mAr05-0005oE-5L for lore@lore.pengutronix.de; Tue, 03 Aug 2021 11:46:17 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mAr03-0000d3-3Z for lore@pengutronix.de; Tue, 03 Aug 2021 11:46:15 +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:MIME-Version:Message-Id:Date:Subject:Cc :To: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=PwXCtkguZx5f9nvdi+LQvolneNZshrEtjGdjZx3zja4=; b=3S6ASK3qlGxogz dqkh0TNoH0+1/TMxc9q8zct4PeyFrnvTuPYJb8HaA3sIjrJ/3dp1iv2U9ZzDD0d9NTdTOnaQq8uOP RNVaWTXGOJYzmX4WbduTWyZPWIUyrTCWBdvHLEUD0eYEE2mvhmYGAXCVhKmcVRIDCfSKKuWegsdso G5yPaXvroI7zw9BXs1CDOxufJu3UtlNGtKElSj4etGhsLVFSX/A2+tf9naygXJTfWGm8hHS4hQ8hz onXzrqFqddNsKnXUYWq8Og8fHPfC0rCF0pIpU9tH7bAuzr/5CWgzdn5D0Zj9mBBF3PG8dTsPyNiJj Y3lTXMYwk57hUMTXNqYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mAqyQ-001r22-Qb; Tue, 03 Aug 2021 09:44:34 +0000 Received: from magratgarlick.emantor.de ([78.46.208.201]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mAqyK-001qyv-R7 for barebox@lists.infradead.org; Tue, 03 Aug 2021 09:44:30 +0000 Received: by magratgarlick.emantor.de (Postfix, from userid 114) id 716488A109; Tue, 3 Aug 2021 11:44:23 +0200 (CEST) Received: from localhost (unknown [IPv6:2001:9e8:217d:6102:c0d3:dbff:fefe:ff70]) by magratgarlick.emantor.de (Postfix) with ESMTPSA id 7FD118A0FA; Tue, 3 Aug 2021 11:44:21 +0200 (CEST) From: Rouven Czerwinski To: barebox@lists.infradead.org Cc: Rouven Czerwinski Date: Tue, 3 Aug 2021 11:44:10 +0200 Message-Id: <20210803094418.475609-1-r.czerwinski@pengutronix.de> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210803_024429_084031_71C491CE X-CRM114-Status: GOOD ( 11.92 ) 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-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=-5.5 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, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 0/8] XN Support for reserved-memory areas 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) This is v2 of a series to properly handle reserved memory areas with the no-map property. This allows us to early load OP-TEE, while also prohibiting the CPU from speculating into the OP-TEE area by mapping the OP-TEE area as uncached and eXecute Never. We also parse the device tree reserved memory areas from the DT passed into barebox proper, to also remove no-map entries from the MMU there. Rouven Czerwinski (8): of: reserve: add xn flag mem entries of: add of_get_reserve_map stub for !CONFIG_OFTREE ARM: mmu: use reserve mem entries to modify maps of: add flag to not create resmem DT entries of: add reserved_mem_read initcall pbl: fdt: add support to parse reserved mem ARM: mmu-early: map no-map entries XN & uncached PBL: enable LIBFDT for OP-TEE early loading arch/arm/cpu/mmu-early.c | 13 +++++ arch/arm/cpu/mmu.c | 34 ++++++++++- arch/arm/cpu/sm.c | 2 +- arch/arm/cpu/start.c | 2 +- arch/arm/mach-layerscape/ppa.c | 2 +- common/Kconfig | 1 + common/bootm.c | 3 +- drivers/of/Makefile | 1 + drivers/of/fdt.c | 16 +++-- drivers/of/reserved-mem.c | 43 ++++++++++++++ drivers/video/fb.c | 3 +- drivers/video/simplefb-fixup.c | 2 +- fs/pstore/ram.c | 3 +- include/of.h | 14 ++++- include/pbl.h | 25 ++++++++ pbl/fdt.c | 103 ++++++++++++++++++++++++++++----- 16 files changed, 237 insertions(+), 30 deletions(-) create mode 100644 drivers/of/reserved-mem.c -- 2.32.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox