From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-it0-x244.google.com ([2607:f8b0:4001:c0b::244]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1eyVlJ-0001AL-1p for barebox@lists.infradead.org; Wed, 21 Mar 2018 04:54:10 +0000 Received: by mail-it0-x244.google.com with SMTP id 19-v6so5172315itw.3 for ; Tue, 20 Mar 2018 21:53:58 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20180316125354.23462-62-s.hauer@pengutronix.de> References: <20180316125354.23462-1-s.hauer@pengutronix.de> <20180316125354.23462-62-s.hauer@pengutronix.de> From: Andrey Smirnov Date: Tue, 20 Mar 2018 21:53:56 -0700 Message-ID: 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" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH 61/78] ARM: aarch64: mmu: Make zero page faulting To: Sascha Hauer Cc: Barebox List On Fri, Mar 16, 2018 at 5:53 AM, Sascha Hauer wrote: > Make zero page faulting which allows us to catch NULL pointer derefs. > > Signed-off-by: Sascha Hauer > --- > arch/arm/cpu/mmu_64.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/cpu/mmu_64.c b/arch/arm/cpu/mmu_64.c > index 20f6c387f3..094bc0ac62 100644 > --- a/arch/arm/cpu/mmu_64.c > +++ b/arch/arm/cpu/mmu_64.c > @@ -316,6 +316,8 @@ static int mmu_init(void) > for_each_memory_bank(bank) > create_sections(bank->start, bank->start, bank->size, CACHED_MEM); > > + create_sections(0x0, 0x0, 0x1000, 0x0); Sascha: Maybe add commit message as comment to the line above as well? Thanks, Andrey Smirnov > + > mmu_enable(); > > return 0; > -- > 2.16.1 > > > _______________________________________________ > barebox mailing list > barebox@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/barebox _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox