From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 21 Jul 2023 09:05:06 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qMkCK-005EEm-BM for lore@lore.pengutronix.de; Fri, 21 Jul 2023 09:05:06 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qMkCI-0001JW-0D for lore@pengutronix.de; Fri, 21 Jul 2023 09:05:06 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Type:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To :Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4xG6aL8qA/STsXCLfm1n1qwSUtVXzDrWNRdjtRhhVhs=; b=36Gh4HGEv/xkuWDu6GlPNagiYP ijSqLbWw5jW2bVmJrzZcFWZ+fpGuH2ZJCcurJA/bkA402+Q4bFSyzWg2mB13H1F3cLAVJMhb3luKp tDTAsQ8KwNpf582zqcv09k532Dr9buZCCFn7sTiDTrgO6g/k6RCvx4Oda62w5tQ3BLtJIVwprnV62 sK8MpIwV3e69BslEUCTg4KRUuHj9wFp1RuZusLweEHTLXZpig9uMMBjLnTKpe3ZrWmho+LiwGqvtY TKlKgPA8Vqj1kR0vv8VmQhr5W234VdSrRS5BS0WeHJqwhpb9wltZI0m4sgSvWBf+Y/GDs7XU8kTM7 Jl0ozy8w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qMkAw-00D7vo-32; Fri, 21 Jul 2023 07:03:42 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qMkAs-00D7uT-18 for barebox@lists.infradead.org; Fri, 21 Jul 2023 07:03:40 +0000 Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qMkAm-00013o-Li; Fri, 21 Jul 2023 09:03:32 +0200 Received: from mtr by ptx.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1qMkAm-0003fX-DL; Fri, 21 Jul 2023 09:03:32 +0200 Date: Fri, 21 Jul 2023 09:03:32 +0200 From: Michael Tretter To: Ahmad Fatoum Message-ID: <20230721070332.GE26209@pengutronix.de> References: <20230718100248.875155-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230718100248.875155-1-a.fatoum@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230721_000338_387277_F55447B5 X-CRM114-Status: GOOD ( 18.30 ) 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: , Cc: barebox@lists.infradead.org, Steffen Trumtrar Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::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=-4.9 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, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH] common: bootm: support locating kernel in FIT image in zero page 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) On Tue, 18 Jul 2023 12:02:48 +0200, Ahmad Fatoum wrote: > Since commit 7e2f6a1ffd64 ("uimage: disable zero page when loading to > SDRAM at address 0x0"), we allow locating images loaded from files at > address zero if that's within the SDRAM. This only applied to images > loaded with file_to_sdram() and images that were already in RAM were > still not allowed to overlap the zero page. > > Fix this by doing in bootm_load_os() as was done in file_to_sdram(), > namely, disabling zero page trapping for the duration of the memcpy. > We need no further zero page handling afterwards, because kernel is > booted after paging is disabled. > > Cc: Michael Tretter > Reported-by: Steffen Trumtrar > Signed-off-by: Ahmad Fatoum Reviewed-by: Michael Tretter > --- > common/bootm.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/common/bootm.c b/common/bootm.c > index 791d6b8fbbf1..4845c40958ae 100644 > --- a/common/bootm.c > +++ b/common/bootm.c > @@ -13,6 +13,7 @@ > #include > #include > #include > +#include > > static LIST_HEAD(handler_list); > > @@ -119,7 +120,7 @@ int bootm_load_os(struct image_data *data, unsigned long load_address) > (unsigned long long)load_address + kernel_size - 1); > return -ENOMEM; > } > - memcpy((void *)load_address, kernel, kernel_size); > + zero_page_memcpy((void *)load_address, kernel, kernel_size); > return 0; > } > > -- > 2.39.2 > >