From patchwork Thu Sep 17 09:38:11 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Ryabinin X-Patchwork-Id: 7204341 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7DD3EBEEC1 for ; Thu, 17 Sep 2015 09:41:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AA89E205EE for ; Thu, 17 Sep 2015 09:41:05 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A61782060F for ; Thu, 17 Sep 2015 09:41:04 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcVf7-0003tv-Gw; Thu, 17 Sep 2015 09:39:29 +0000 Received: from mail-la0-x22f.google.com ([2a00:1450:4010:c03::22f]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcVeT-00039w-4h for linux-arm-kernel@lists.infradead.org; Thu, 17 Sep 2015 09:38:50 +0000 Received: by lamp12 with SMTP id p12so7459747lam.0 for ; Thu, 17 Sep 2015 02:38:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=D48++kBUgkPv58RR+eREECKMNkeStGXy1BNT9n2Ugi8=; b=nCrjRfH7V5qXRCtNzm+ZovDRJzGG6nK8/vSBhX6uiE1ufmzQTnVydiqA//wkhWfMzp f8Hn8diLPjOAFx2NNedk+3YhCE91qsvyYtCIDKhYVtjjvBh6FvL8FMi9WkXsDm3uzgKQ Cci1JSeX67r92YnOYYbhlS3LVTIn/+ywQDb345yyx7rxZZ6LoRzaJhAXhOvn7JASiJTl gczfbYaFkz+NVYjIcdyl4HvBXj03RJHx+OGl+7HPlc0hiuJOjEAu8nestQugkmbn+qkQ UcKAKsOh4GWzFwxdL9i7aTwhrG/gZZEXZYHrrSuH3giXJFnlwSiTdgt+NKK5eL8AwURr nPUg== X-Received: by 10.112.173.5 with SMTP id bg5mr20693040lbc.39.1442482707202; Thu, 17 Sep 2015 02:38:27 -0700 (PDT) Received: from localhost.sw.ru (swsoft-msk-nat.sw.ru. [195.214.232.10]) by smtp.gmail.com with ESMTPSA id b10sm410402laf.16.2015.09.17.02.38.25 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 17 Sep 2015 02:38:26 -0700 (PDT) From: Andrey Ryabinin To: Will Deacon , Catalin Marinas , linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 5/6] ARM64: kasan: print memory assignment Date: Thu, 17 Sep 2015 12:38:11 +0300 Message-Id: <1442482692-6416-6-git-send-email-ryabinin.a.a@gmail.com> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1442482692-6416-1-git-send-email-ryabinin.a.a@gmail.com> References: <1442482692-6416-1-git-send-email-ryabinin.a.a@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150917_023849_429013_306925F5 X-CRM114-Status: UNSURE ( 7.95 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.7 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yury , Alexey Klimov , Arnd Bergmann , linux-mm@kvack.org, Andrey Konovalov , Linus Walleij , linux-kernel@vger.kernel.org, David Keitel , Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Linus Walleij This prints out the virtual memory assigned to KASan in the boot crawl along with other memory assignments, if and only if KASan is activated. Example dmesg from the Juno Development board: Memory: 1691156K/2080768K available (5465K kernel code, 444K rwdata, 2160K rodata, 340K init, 217K bss, 373228K reserved, 16384K cma-reserved) Virtual kernel memory layout: kasan : 0xffffff8000000000 - 0xffffff9000000000 ( 64 GB) vmalloc : 0xffffff9000000000 - 0xffffffbdbfff0000 ( 182 GB) vmemmap : 0xffffffbdc0000000 - 0xffffffbfc0000000 ( 8 GB maximum) 0xffffffbdc2000000 - 0xffffffbdc3fc0000 ( 31 MB actual) fixed : 0xffffffbffabfd000 - 0xffffffbffac00000 ( 12 KB) PCI I/O : 0xffffffbffae00000 - 0xffffffbffbe00000 ( 16 MB) modules : 0xffffffbffc000000 - 0xffffffc000000000 ( 64 MB) memory : 0xffffffc000000000 - 0xffffffc07f000000 ( 2032 MB) .init : 0xffffffc0007f5000 - 0xffffffc00084a000 ( 340 KB) .text : 0xffffffc000080000 - 0xffffffc0007f45b4 ( 7634 KB) .data : 0xffffffc000850000 - 0xffffffc0008bf200 ( 445 KB) Signed-off-by: Linus Walleij Signed-off-by: Andrey Ryabinin Acked-by: Catalin Marinas --- arch/arm64/mm/init.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index f5c0680..7a1f9a0 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -298,6 +298,9 @@ void __init mem_init(void) #define MLK_ROUNDUP(b, t) b, t, DIV_ROUND_UP(((t) - (b)), SZ_1K) pr_notice("Virtual kernel memory layout:\n" +#ifdef CONFIG_KASAN + " kasan : 0x%16lx - 0x%16lx (%6ld GB)\n" +#endif " vmalloc : 0x%16lx - 0x%16lx (%6ld GB)\n" #ifdef CONFIG_SPARSEMEM_VMEMMAP " vmemmap : 0x%16lx - 0x%16lx (%6ld GB maximum)\n" @@ -310,6 +313,9 @@ void __init mem_init(void) " .init : 0x%p" " - 0x%p" " (%6ld KB)\n" " .text : 0x%p" " - 0x%p" " (%6ld KB)\n" " .data : 0x%p" " - 0x%p" " (%6ld KB)\n", +#ifdef CONFIG_KASAN + MLG(KASAN_SHADOW_START, KASAN_SHADOW_END), +#endif MLG(VMALLOC_START, VMALLOC_END), #ifdef CONFIG_SPARSEMEM_VMEMMAP MLG((unsigned long)vmemmap,