Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934145AbbGVKbf (ORCPT ); Wed, 22 Jul 2015 06:31:35 -0400 Received: from mailout2.w1.samsung.com ([210.118.77.12]:58933 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933946AbbGVKa5 (ORCPT ); Wed, 22 Jul 2015 06:30:57 -0400 X-AuditID: cbfec7f4-f79c56d0000012ee-81-55af70df3b8b From: Andrey Ryabinin To: Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Cc: Dmitry Vyukov , Alexander Potapenko , David Keitel , Arnd Bergmann , Andrew Morton , linux-mm@kvack.org, Linus Walleij , Andrey Ryabinin , linux-kernel@vger.kernel.org Subject: [PATCH v3 5/5] ARM64: kasan: print memory assignment Date: Wed, 22 Jul 2015 13:30:37 +0300 Message-id: <1437561037-31995-6-git-send-email-a.ryabinin@samsung.com> X-Mailer: git-send-email 2.4.5 In-reply-to: <1437561037-31995-1-git-send-email-a.ryabinin@samsung.com> References: <1437561037-31995-1-git-send-email-a.ryabinin@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrMLMWRmVeSWpSXmKPExsVy+t/xa7r3C9aHGlzeI2+x7dcjNos569ew WfyddIzd4v2yHkaL3ZeeMVtMeNjGbtH+cS+zxZQ/y5ksNj2+xmpxedccNot7a/6zWrz8eILF gcdjzbw1jB6/f01i9Ljc18vksWBTqcemT5PYPe5c28PmcWLGbxaPzUvqPfq2rGL0+LxJLoAr issmJTUnsyy1SN8ugStj478VbAWrhCr+bfjC3sDYzdfFyMkhIWAi8WPpF2YIW0ziwr31bF2M XBxCAksZJU6++M8M4TQxSeztuABWxSagJ/Fv1nY2EFtEoELi6tUJjCA2s8AFJomeiVwgtrCA rcSjxhVgNSwCqhJbt+9mAbF5Bdwkrry7AjSHA2ibnMTS5lqQMKeAu8T5s/vBxgsBlfz/9IFp AiPvAkaGVYyiqaXJBcVJ6bmGesWJucWleel6yfm5mxghQftlB+PiY1aHGAU4GJV4eCccXRcq xJpYVlyZe4hRgoNZSYT3Rdb6UCHelMTKqtSi/Pii0pzU4kOM0hwsSuK8c3e9DxESSE8sSc1O TS1ILYLJMnFwSjUwzpjB4T9HSY/liLDfFe8P8sZB5dNufzW/s/fGoS1XPlbGxR43m3uWOX/x ZvnEX8VvZ0/Jil37X+2IjqOmQOzfr19rlzF93/tWtPnaqzOT535mYtv36fzr5KTWCOcLc/fc mqQg3vRfMFnYhW+V5nf9OE0X48PtnktXCX+xeBx+/Y6Y8aa5BxvV+pRYijMSDbWYi4oTAdMJ xAdWAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2535 Lines: 61 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 --- 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 ad87ce8..3930692 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, -- 2.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/