[{"id":1766125,"web_url":"http://patchwork.ozlabs.org/comment/1766125/","msgid":"<20170911082517.GA25352@dhcp-128-65.nay.redhat.com>","list_archive_url":null,"date":"2017-09-11T08:25:17","subject":"Re: [PATCH 6/9] arm64: kexec_file: load initrd, device-tree and\n\tpurgatory segments","submitter":{"id":16844,"url":"http://patchwork.ozlabs.org/api/people/16844/","name":"Dave Young","email":"dyoung@redhat.com"},"content":"> > +int arch_kimage_file_post_load_cleanup(struct kimage *image)\n> > +{\n> > +\tvfree(image->arch.dtb_buf);\n> > +\timage->arch.dtb_buf = NULL;\n> > +\n> > +\tvfree(image->arch.elf_headers);\n> > +\timage->arch.elf_headers = NULL;\n> > +\timage->arch.elf_headers_sz = 0;\n> > +\n> > +\tif (!image->fops || !image->fops->cleanup)\n> > +\t\treturn 0;\n> > +\n> > +\treturn image->fops->cleanup(image->image_loader_data);\n> > +}\n> > +\n> > +#ifdef CONFIG_KEXEC_VERIFY_SIG\n> > +int arch_kexec_kernel_verify_sig(struct kimage *image, void *kernel,\n> > +\t\t\t\t unsigned long kernel_len)\n> > +{\n> > +\tif (!image->fops || !image->fops->verify_sig) {\n> > +\t\tpr_debug(\"kernel loader does not support signature verification.\\n\");\n> > +\t\treturn -EKEYREJECTED;\n> > +\t}\n> > +\n> > +\treturn image->fops->verify_sig(kernel, kernel_len);\n> > +}\n> \n> \n> arch_kexec_kernel_verify_sig now be duplicated so it can be put in the\n> general function in kexec_file.c\n> \n> Also the probe and load function are also duplicated, they can be moved\n> to common code as well.\n> \n> The x86 load function can be cleaned up with removing the vfree\n> callback.\n> \n> ---\n> arch/x86/kernel/machine_kexec_64.c | 3 ---\n> 1 file changed, 3 deletions(-)\n> \n> --- linux-x86.orig/arch/x86/kernel/machine_kexec_64.c\n> +++ linux-x86/arch/x86/kernel/machine_kexec_64.c\n> @@ -384,9 +384,6 @@ int arch_kexec_kernel_image_probe(struct\n> \n> void *arch_kexec_kernel_image_load(struct kimage *image)\n> {\n> -\tvfree(image->arch.elf_headers);\n> -\timage->arch.elf_headers = NULL;\n> -\n\nHmm, should move above to arch_kimage_file_post_load_cleanup instead.. \n\n> \tif (!image->fops || !image->fops->load)\n> \t\treturn ERR_PTR(-ENOEXEC);\n> \n> \n\n\nThanks\nDave","headers":{"Return-Path":"","X-Original-To":"incoming-imx@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming-imx@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; 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Mon, 11 Sep 2017 08:25:56 +0000","from smtp.corp.redhat.com\n\t(int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 566F523737E;\n\tMon, 11 Sep 2017 08:25:28 +0000 (UTC)","from dhcp-128-65.nay.redhat.com (ovpn-12-101.pek2.redhat.com\n\t[10.72.12.101])\n\tby smtp.corp.redhat.com (Postfix) with ESMTPS id 991595E24F;\n\tMon, 11 Sep 2017 08:25:21 +0000 (UTC)"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:\n\tMessage-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=0irGUqgb41depfEg5FY9opWd+yxFejxnH2KjU87UGbY=;\n\tb=HYevfMztuWj4SK\n\tLXiyz03mNHdl9MTqHm54YKURvoqn+q+P5E0ozV48LY+hBXMJ2gLCa7TiNcg54yMYp+UsGQX1TxGQu\n\tS2av0N1jBCU9JM1+2xvXJvS6OXoMRs38iHqVQ+B2UnDuMMRsCE6NcIz870d2HEUUuWxh5081i60va\n\t1oZnwEY1LVlTCaVVZVIbzVbUTYAnodS4kJQnyFpT7uFdLqbeBrDev8cZju08gYNHWW8tx7HTgzlJP\n\tvJr/uyMEBNkcpk8wLcbEJwWp6HMTEcSQA7dAh22pxbZrJfIQWDH9bCUxZ8ifBBp1nllZOY92q10Ds\n\t7Dnd/t2ARBiMh0NoSVvA==;","DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com 566F523737E","Date":"Mon, 11 Sep 2017 16:25:17 +0800","From":"Dave Young ","To":"AKASHI Takahiro ","Subject":"Re: [PATCH 6/9] arm64: kexec_file: load initrd, device-tree and\n\tpurgatory segments","Message-ID":"<20170911082517.GA25352@dhcp-128-65.nay.redhat.com>","References":"<20170908031616.17916-1-takahiro.akashi@linaro.org>\n\t<20170908031616.17916-7-takahiro.akashi@linaro.org>\n\t<20170911064754.GA7332@dhcp-128-65.nay.redhat.com>","MIME-Version":"1.0","Content-Disposition":"inline","In-Reply-To":"<20170911064754.GA7332@dhcp-128-65.nay.redhat.com>","User-Agent":"Mutt/1.8.3 (2017-05-23)","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.14","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.38]); 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"linux-arm-kernel\" ","Errors-To":"linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org","List-Id":"linux-imx-kernel.lists.patchwork.ozlabs.org"}},{"id":1766675,"web_url":"http://patchwork.ozlabs.org/comment/1766675/","msgid":"<20170912044647.GH17186@linaro.org>","list_archive_url":null,"date":"2017-09-12T04:46:49","subject":"Re: [PATCH 6/9] arm64: kexec_file: load initrd, device-tree and\n\tpurgatory segments","submitter":{"id":61166,"url":"http://patchwork.ozlabs.org/api/people/61166/","name":"AKASHI Takahiro","email":"takahiro.akashi@linaro.org"},"content":"On Mon, Sep 11, 2017 at 02:47:54PM +0800, Dave Young wrote:\n> Hi,\n> \n> On 09/08/17 at 12:16pm, AKASHI Takahiro wrote:\n> > load_other_segments() sets up and adds all the memory segments necessary\n> > other than kernel, including initrd, device-tree blob and purgatory.\n> > Most of the code was borrowed from kexec-tools' counterpart.\n> > \n> > In addition, arch_kexec_image_probe(), arch_kexec_image_load() and\n> > arch_kexec_kernel_verify_sig() are added as stubs for supporting multiple\n> > types of kernel image formats.\n> > \n> > Signed-off-by: AKASHI Takahiro \n> > Cc: Catalin Marinas \n> > Cc: Will Deacon \n> > ---\n> > arch/arm64/include/asm/kexec.h | 19 +++\n> > arch/arm64/kernel/machine_kexec_file.c | 264 +++++++++++++++++++++++++++++++++\n> > 2 files changed, 283 insertions(+)\n> > create mode 100644 arch/arm64/kernel/machine_kexec_file.c\n> > \n> > diff --git a/arch/arm64/include/asm/kexec.h b/arch/arm64/include/asm/kexec.h\n> > index e17f0529a882..d74dc49670ad 100644\n> > --- a/arch/arm64/include/asm/kexec.h\n> > +++ b/arch/arm64/include/asm/kexec.h\n> > @@ -93,6 +93,25 @@ static inline void crash_prepare_suspend(void) {}\n> > static inline void crash_post_resume(void) {}\n> > #endif\n> > \n> > +#ifdef CONFIG_KEXEC_FILE\n> > +#define ARCH_HAS_KIMAGE_ARCH\n> > +\n> > +struct kimage_arch {\n> > +\tvoid *dtb_buf;\n> > +};\n> > +\n> > +struct kimage;\n> > +\n> > +extern int setup_dtb(struct kimage *image,\n> > +\t\tunsigned long initrd_load_addr, unsigned long initrd_len,\n> > +\t\tchar *cmdline, unsigned long cmdline_len,\n> > +\t\tchar **dtb_buf, size_t *dtb_buf_len);\n> > +extern int load_other_segments(struct kimage *image,\n> > +\t\tunsigned long kernel_load_addr,\n> > +\t\tchar *initrd, unsigned long initrd_len,\n> > +\t\tchar *cmdline, unsigned long cmdline_len);\n> > +#endif\n> > +\n> > #endif /* __ASSEMBLY__ */\n> > \n> > #endif\n> > diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c\n> > new file mode 100644\n> > index 000000000000..a6d2c006b4f7\n> > --- /dev/null\n> > +++ b/arch/arm64/kernel/machine_kexec_file.c\n> > @@ -0,0 +1,264 @@\n> > +/*\n> > + * kexec_file for arm64\n> > + *\n> > + * Copyright (C) 2017 Linaro Limited\n> > + * Author: AKASHI Takahiro \n> > + *\n> > + * Most code is derived from arm64 port of kexec-tools\n> > + *\n> > + * This program is free software; you can redistribute it and/or modify\n> > + * it under the terms of the GNU General Public License version 2 as\n> > + * published by the Free Software Foundation.\n> > + */\n> > +\n> > +#define pr_fmt(fmt) \"kexec_file: \" fmt\n> > +\n> > +#include \n> > +#include \n> > +#include \n> > +#include \n> > +#include \n> > +#include \n> > +#include \n> > +\n> > +static int __dt_root_addr_cells;\n> > +static int __dt_root_size_cells;\n> > +\n> > +static struct kexec_file_ops *kexec_file_loaders[0];\n> > +\n> > +int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,\n> > +\t\t\t\t unsigned long buf_len)\n> > +{\n> > +\tstruct kexec_file_ops *fops;\n> > +\tint i, ret;\n> > +\n> > +\tfor (i = 0; i < ARRAY_SIZE(kexec_file_loaders); i++) {\n> > +\t\tfops = kexec_file_loaders[i];\n> > +\t\tif (!fops || !fops->probe)\n> > +\t\t\tcontinue;\n> > +\n> > +\t\tret = fops->probe(buf, buf_len);\n> > +\t\tif (!ret) {\n> > +\t\t\timage->fops = fops;\n> > +\t\t\treturn 0;\n> > +\t\t}\n> > +\t}\n> > +\n> > +\treturn -ENOEXEC;\n> > +}\n> > +\n> > +void *arch_kexec_kernel_image_load(struct kimage *image)\n> > +{\n> > +\tif (!image->fops || !image->fops->load)\n> > +\t\treturn ERR_PTR(-ENOEXEC);\n> > +\n> > +\treturn image->fops->load(image, image->kernel_buf,\n> > +\t\t\t\t image->kernel_buf_len, image->initrd_buf,\n> > +\t\t\t\t image->initrd_buf_len, image->cmdline_buf,\n> > +\t\t\t\t image->cmdline_buf_len);\n> > +}\n> > +\n> > +int arch_kimage_file_post_load_cleanup(struct kimage *image)\n> > +{\n> > +\tvfree(image->arch.dtb_buf);\n> > +\timage->arch.dtb_buf = NULL;\n> > +\n> > +\tvfree(image->arch.elf_headers);\n> > +\timage->arch.elf_headers = NULL;\n> > +\timage->arch.elf_headers_sz = 0;\n> > +\n> > +\tif (!image->fops || !image->fops->cleanup)\n> > +\t\treturn 0;\n> > +\n> > +\treturn image->fops->cleanup(image->image_loader_data);\n> > +}\n> > +\n> > +#ifdef CONFIG_KEXEC_VERIFY_SIG\n> > +int arch_kexec_kernel_verify_sig(struct kimage *image, void *kernel,\n> > +\t\t\t\t unsigned long kernel_len)\n> > +{\n> > +\tif (!image->fops || !image->fops->verify_sig) {\n> > +\t\tpr_debug(\"kernel loader does not support signature verification.\\n\");\n> > +\t\treturn -EKEYREJECTED;\n> > +\t}\n> > +\n> > +\treturn image->fops->verify_sig(kernel, kernel_len);\n> > +}\n> \n> \n> arch_kexec_kernel_verify_sig now be duplicated so it can be put in the\n> general function in kexec_file.c\n> \n> Also the probe and load function are also duplicated, they can be moved\n> to common code as well.\n\nOkay!\n\n> The x86 load function can be cleaned up with removing the vfree\n> callback.\n\nSure\n\nThanks,\n-Takahiro AKASHI","headers":{"Return-Path":"","X-Original-To":"incoming-imx@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming-imx@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"linux-arm-kernel\" ","Errors-To":"linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org","List-Id":"linux-imx-kernel.lists.patchwork.ozlabs.org"}},{"id":1766694,"web_url":"http://patchwork.ozlabs.org/comment/1766694/","msgid":"<20170912055521.GA8787@dhcp-128-65.nay.redhat.com>","list_archive_url":null,"date":"2017-09-12T05:55:21","subject":"Re: [PATCH 3/9] kexec_file: factor out crashdump elf header function\n\tfrom x86","submitter":{"id":16844,"url":"http://patchwork.ozlabs.org/api/people/16844/","name":"Dave Young","email":"dyoung@redhat.com"},"content":"Hi,\nOn 09/08/17 at 12:16pm, AKASHI Takahiro wrote:\n[snip]\n> --- a/include/linux/kexec.h\n> +++ b/include/linux/kexec.h\n> @@ -162,6 +162,25 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,\n> \t\t\t int (*func)(u64, u64, void *));\n> extern int kexec_add_buffer(struct kexec_buf *kbuf);\n> int kexec_locate_mem_hole(struct kexec_buf *kbuf);\n> +#ifdef CONFIG_CRASH_CORE\n> +extern int prepare_elf_headers(struct kimage *image, void **addr,\n> +\t\t\t\tunsigned long *sz);\n> +\n> +/* This primarily represents number of split ranges due to exclusion */\n> +#define CRASH_MAX_RANGES 16\n> +\n> +struct crash_mem_range {\n> +\tu64 start, end;\n> +};\n> +\n> +struct crash_mem {\n> +\tunsigned int nr_ranges;\n> +\tstruct crash_mem_range ranges[CRASH_MAX_RANGES];\n> +};\n> +\n> +extern int exclude_mem_range(struct crash_mem *mem,\n> +\t\tunsigned long long mstart, unsigned long long mend);\n> +#endif /* CONFIG_CRASH_CORE */\n\nMaybe I did not say it clear when reviewing the v1.\n\nI suggested to move the code from to kexec_file.c because the\nCONFIG_CRASH_CORE originally was introduced for the common code for\nvmcoreinfo stuff when Hari worked on sharing code between powerpc\nfadump and kdump.\n\nI'm not sure we need the #ifdef CONFIG_CRASH_CORE here for these\nkexec file load functions. Since they are already in kexec_file.c\nso I think no need to add the #ifdef\n\n> #endif /* CONFIG_KEXEC_FILE */\nThanks\nDave","headers":{"Return-Path":"","X-Original-To":"incoming-imx@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming-imx@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; helo=bombadil.infradead.org;\n\tenvelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org\n\theader.b=\"kS+i4Gr9\"; dkim-atps=neutral","ext-mx10.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx10.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=dyoung@redhat.com"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xrvDs5dwZz9s7g\n\tfor ;\n\tTue, 12 Sep 2017 15:56:27 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dreBM-0008O6-D5; 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bh=928baeHiov2RclsRyNCdxoCWF5eJbQ3Pwx5R07nY1xs=;\n\tb=kS+i4Gr9jWuGFx\n\tIsfBTxZlpxzBoP+Xi/1eZuDCwe/A+Fpp9T/LLHm2eBMOnqD39adXHCldAvt24mrbghchPyvQRzz7R\n\tI6ofjaJ7ElFmCZO6SDArsccMJPygJU5IYftj5tRwkAvSNS4brOzgg5KucbtKSFp0AR66EIn6vPziw\n\trK7gy7JNgr+q3Sp3CDDTSmhv5MpEGVXjuNyv/G7X4w4FUJffSef8rJ7DXSjC/kwa15D+NOq/vzRIN\n\td2U+FLroIoN2fvDPpW7I+g7BCYlJMm1GMZVAI3yVcwncEIRbjCR1D5T3TuQlAuHkqP9z0F1A8Qcv/\n\t3v+chxcdVG2zzLmGoysw==;","DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com 2FC9B5D686","Date":"Tue, 12 Sep 2017 13:55:21 +0800","From":"Dave Young ","To":"AKASHI Takahiro ","Subject":"Re: [PATCH 3/9] kexec_file: factor out crashdump elf header function\n\tfrom x86","Message-ID":"<20170912055521.GA8787@dhcp-128-65.nay.redhat.com>","References":"<20170908031616.17916-1-takahiro.akashi@linaro.org>\n\t<20170908031616.17916-4-takahiro.akashi@linaro.org>","MIME-Version":"1.0","Content-Disposition":"inline","In-Reply-To":"<20170908031616.17916-4-takahiro.akashi@linaro.org>","User-Agent":"Mutt/1.8.3 (2017-05-23)","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.12","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.39]); Tue, 12 Sep 2017 05:55:32 +0000 (UTC)","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170911_225555_438621_E9FFA12E ","X-CRM114-Status":"GOOD ( 13.05 )","X-Spam-Score":"-6.9 (------)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-6.9 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/,\n\thigh trust [209.132.183.28 listed in list.dnswl.org]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n\t-0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)\n\t[209.132.183.28 listed in wl.mailspike.net]\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.0 RCVD_IN_MSPIKE_WL Mailspike good senders","X-BeenThere":"linux-arm-kernel@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"herbert@gondor.apana.org.au, bhe@redhat.com, ard.biesheuvel@linaro.org, \n\tcatalin.marinas@arm.com, will.deacon@arm.com,\n\tlinux-kernel@vger.kernel.org, \n\tkexec@lists.infradead.org, dhowells@redhat.com, arnd@arndb.de,\n\tlinux-arm-kernel@lists.infradead.org, mpe@ellerman.id.au,\n\tbauerman@linux.vnet.ibm.com, akpm@linux-foundation.org,\n\tdavem@davemloft.net, vgoyal@redhat.com","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"linux-arm-kernel\" ","Errors-To":"linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org","List-Id":"linux-imx-kernel.lists.patchwork.ozlabs.org"}},{"id":1767441,"web_url":"http://patchwork.ozlabs.org/comment/1767441/","msgid":"<20170913004645.GI17186@linaro.org>","list_archive_url":null,"date":"2017-09-13T00:46:47","subject":"Re: [PATCH 3/9] kexec_file: factor out crashdump elf header function\n\tfrom x86","submitter":{"id":61166,"url":"http://patchwork.ozlabs.org/api/people/61166/","name":"AKASHI Takahiro","email":"takahiro.akashi@linaro.org"},"content":"On Tue, Sep 12, 2017 at 01:55:21PM +0800, Dave Young wrote:\n> Hi,\n> On 09/08/17 at 12:16pm, AKASHI Takahiro wrote:\n> [snip]\n> > --- a/include/linux/kexec.h\n> > +++ b/include/linux/kexec.h\n> > @@ -162,6 +162,25 @@ int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,\n> > \t\t\t int (*func)(u64, u64, void *));\n> > extern int kexec_add_buffer(struct kexec_buf *kbuf);\n> > int kexec_locate_mem_hole(struct kexec_buf *kbuf);\n> > +#ifdef CONFIG_CRASH_CORE\n> > +extern int prepare_elf_headers(struct kimage *image, void **addr,\n> > +\t\t\t\tunsigned long *sz);\n> > +\n> > +/* This primarily represents number of split ranges due to exclusion */\n> > +#define CRASH_MAX_RANGES 16\n> > +\n> > +struct crash_mem_range {\n> > +\tu64 start, end;\n> > +};\n> > +\n> > +struct crash_mem {\n> > +\tunsigned int nr_ranges;\n> > +\tstruct crash_mem_range ranges[CRASH_MAX_RANGES];\n> > +};\n> > +\n> > +extern int exclude_mem_range(struct crash_mem *mem,\n> > +\t\tunsigned long long mstart, unsigned long long mend);\n> > +#endif /* CONFIG_CRASH_CORE */\n> \n> Maybe I did not say it clear when reviewing the v1.\n> \n> I suggested to move the code from to kexec_file.c because the\n\n(from crash_core.c)\n\n> CONFIG_CRASH_CORE originally was introduced for the common code for\n> vmcoreinfo stuff when Hari worked on sharing code between powerpc\n> fadump and kdump.\n> \n> I'm not sure we need the #ifdef CONFIG_CRASH_CORE here for these\n> kexec file load functions. Since they are already in kexec_file.c\n> so I think no need to add the #ifdef\n\nRight. CRASH_CORE is always selected, in arch/Kconfig, by KEXEC_CORE\nwhich is selected by KEXEC_FILE.\n(In this sense, CRASH_CORE has no use any more.)\n\nThanks,\n-Takahiro AKASHI\n\n> > #endif /* CONFIG_KEXEC_FILE */\n> Thanks\n> Dave","headers":{"Return-Path":"","X-Original-To":"incoming-imx@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming-imx@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; helo=bombadil.infradead.org;\n\tenvelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"Fl4SO9U2\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=linaro.org header.i=@linaro.org\n\theader.b=\"MoWieSll\"; dkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xsNHs1kPNz9t3J\n\tfor ;\n\tWed, 13 Sep 2017 10:45:45 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1drvoE-0002KW-5Q; 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\n\tTue, 12 Sep 2017 17:44:52 -0700 (PDT)","Date":"Wed, 13 Sep 2017 09:46:47 +0900","From":"AKASHI Takahiro ","To":"Dave Young ","Subject":"Re: [PATCH 3/9] kexec_file: factor out crashdump elf header function\n\tfrom x86","Message-ID":"<20170913004645.GI17186@linaro.org>","Mail-Followup-To":"AKASHI Takahiro ,\n\tDave Young , catalin.marinas@arm.com,\n\twill.deacon@arm.com, bauerman@linux.vnet.ibm.com,\n\tdhowells@redhat.com, vgoyal@redhat.com, herbert@gondor.apana.org.au, \n\tdavem@davemloft.net, akpm@linux-foundation.org, mpe@ellerman.id.au,\n\tbhe@redhat.com, arnd@arndb.de, ard.biesheuvel@linaro.org,\n\tkexec@lists.infradead.org, linux-kernel@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org","References":"<20170908031616.17916-1-takahiro.akashi@linaro.org>\n\t<20170908031616.17916-4-takahiro.akashi@linaro.org>\n\t<20170912055521.GA8787@dhcp-128-65.nay.redhat.com>","MIME-Version":"1.0","Content-Disposition":"inline","In-Reply-To":"<20170912055521.GA8787@dhcp-128-65.nay.redhat.com>","User-Agent":"Mutt/1.5.24 (2015-08-30)","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170912_174514_338290_917C8950 ","X-CRM114-Status":"GOOD ( 16.66 )","X-Spam-Score":"-2.0 (--)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-2.0 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/,\n\tno\n\ttrust [2607:f8b0:400e:c05:0:0:0:236 listed in] [list.dnswl.org]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature\n\t0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n\tnot necessarily valid\n\t-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n\tauthor's domain","X-BeenThere":"linux-arm-kernel@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"herbert@gondor.apana.org.au, bhe@redhat.com, ard.biesheuvel@linaro.org, \n\tcatalin.marinas@arm.com, will.deacon@arm.com,\n\tlinux-kernel@vger.kernel.org, \n\tkexec@lists.infradead.org, dhowells@redhat.com, arnd@arndb.de,\n\tlinux-arm-kernel@lists.infradead.org, mpe@ellerman.id.au,\n\tbauerman@linux.vnet.ibm.com, akpm@linux-foundation.org,\n\tdavem@davemloft.net, vgoyal@redhat.com","Content-Type":"text/plain; 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