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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no 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 651D8C47404 for ; Wed, 9 Oct 2019 07:18:21 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D77092190F for ; Wed, 9 Oct 2019 07:18:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D77092190F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=buserror.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46p5Ct51s9zDqBm for ; Wed, 9 Oct 2019 18:18:18 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=buserror.net (client-ip=165.227.176.147; helo=baldur.buserror.net; envelope-from=oss@buserror.net; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=buserror.net Received: from baldur.buserror.net (baldur.buserror.net [165.227.176.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46p59R4slzzDqKr for ; Wed, 9 Oct 2019 18:16:10 +1100 (AEDT) Received: from [2601:449:8480:af0:12bf:48ff:fe84:c9a0] by baldur.buserror.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iI6AQ-0000r8-Fp; Wed, 09 Oct 2019 02:13:50 -0500 Message-ID: <38141b946f3376ce471e46eaf065e357ac540354.camel@buserror.net> From: Scott Wood To: Jason Yan , mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, diana.craciun@nxp.com, christophe.leroy@c-s.fr, benh@kernel.crashing.org, paulus@samba.org, npiggin@gmail.com, keescook@chromium.org, kernel-hardening@lists.openwall.com Date: Wed, 09 Oct 2019 02:13:48 -0500 In-Reply-To: References: <20190920094546.44948-1-yanaijie@huawei.com> <9c2dd2a8-83f2-983c-383e-956e19a7803a@huawei.com> Organization: Red Hat Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 2601:449:8480:af0:12bf:48ff:fe84:c9a0 X-SA-Exim-Rcpt-To: yanaijie@huawei.com, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, diana.craciun@nxp.com, christophe.leroy@c-s.fr, benh@kernel.crashing.org, paulus@samba.org, npiggin@gmail.com, keescook@chromium.org, kernel-hardening@lists.openwall.com, linux-kernel@vger.kernel.org, wangkefeng.wang@huawei.com, yebin10@huawei.com, thunder.leizhen@huawei.com, jingxiangfeng@huawei.com, zhaohongjiang@huawei.com X-SA-Exim-Mail-From: oss@buserror.net Subject: Re: [PATCH v7 00/12] implement KASLR for powerpc/fsl_booke/32 X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on baldur.buserror.net) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wangkefeng.wang@huawei.com, linux-kernel@vger.kernel.org, jingxiangfeng@huawei.com, zhaohongjiang@huawei.com, thunder.leizhen@huawei.com, yebin10@huawei.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, 2019-10-09 at 14:10 +0800, Jason Yan wrote: > Hi Scott, > > Would you please take sometime to test this? > > Thank you so much. > > On 2019/9/24 13:52, Jason Yan wrote: > > Hi Scott, > > > > Can you test v7 to see if it works to load a kernel at a non-zero address? > > > > Thanks, Sorry for the delay. Here's the output: ## Booting kernel from Legacy Image at 10000000 ... Image Name: Linux-5.4.0-rc2-00050-g8ac2cf5b4 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 7521134 Bytes = 7.2 MiB Load Address: 04000000 Entry Point: 04000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 1fc00000 Booting using the fdt blob at 0x1fc00000 Uncompressing Kernel Image ... OK Loading Device Tree to 07fe0000, end 07fff65c ... OK KASLR: No safe seed for randomizing the kernel base. OF: reserved mem: initialized node qman-fqd, compatible id fsl,qman-fqd OF: reserved mem: initialized node qman-pfdr, compatible id fsl,qman-pfdr OF: reserved mem: initialized node bman-fbpr, compatible id fsl,bman-fbpr Memory CAM mapping: 64/64/64 Mb, residual: 12032Mb Linux version 5.4.0-rc2-00050-g8ac2cf5b4e4a-dirty (scott@snotra) (gcc version 8. 1.0 (GCC)) #26 SMP Wed Oct 9 01:50:40 CDT 2019 Using CoreNet Generic machine description printk: bootconsole [udbg0] enabled CPU maps initialized for 1 thread per core ----------------------------------------------------- phys_mem_size = 0x2fc000000 dcache_bsize = 0x40 icache_bsize = 0x40 cpu_features = 0x00000000000003b4 possible = 0x00000000010103bc always = 0x0000000000000020 cpu_user_features = 0x8c008000 0x08000000 mmu_features = 0x000a0010 physical_start = 0xc7c4000 ----------------------------------------------------- CoreNet Generic board mpc85xx_qe_init: Could not find Quicc Engine node barrier-nospec: using isync; sync as speculation barrier Zone ranges: Normal [mem 0x0000000004000000-0x000000000fffffff] HighMem [mem 0x0000000010000000-0x00000002ffffffff] Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000004000000-0x00000002ffffffff] Initmem setup node 0 [mem 0x0000000004000000-0x00000002ffffffff] Kernel panic - not syncing: Failed to allocate 125173760 bytes for node 0 memory map CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.0-rc2-00050-g8ac2cf5b4e4a-dirty #26 Call Trace: [c989fe10] [c924bfb0] dump_stack+0x84/0xb4 (unreliable) [c989fe30] [c880badc] panic+0x140/0x334 [c989fe90] [c89a1144] alloc_node_mem_map.constprop.117+0xa0/0x11c [c989feb0] [c95481c4] free_area_init_node+0x314/0x5b8 [c989ff30] [c9548b34] free_area_init_nodes+0x57c/0x5c0 [c989ff80] [c952cbb4] setup_arch+0x250/0x270 [c989ffa0] [c95278e0] start_kernel+0x74/0x4e8 [c989fff0] [c87c4478] set_ivor+0x150/0x18c Kernel Offset: 0x87c4000 from 0xc0000000 Rebooting in 180 seconds.. -Scott