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Wed, 30 Sep 2020 18:39:24 +0000 (GMT) From: =?utf-8?q?=C5=81ukasz_Stelmach?= To: Russell King , Masahiro Yamada , Nick Desaulniers , Thomas Gleixner , Enrico Weigelt , Kees Cook , Ingo Molnar , Ben Dooks , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, AKASHI Takahiro , kexec@lists.infradead.org, Dave Young Subject: [PATCH v3 3/4] arm: Add kexec_image_info Date: Wed, 30 Sep 2020 20:34:12 +0200 Message-Id: <20200930183413.17023-4-l.stelmach@samsung.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200930183413.17023-1-l.stelmach@samsung.com> MIME-Version: 1.0 Organization: Samsung R&D Institute Poland X-Brightmail-Tracker: H4sIAAAAAAAAA02Se0hTYRjG+3bOjsfp7LgiXzSLRhcSSrtQBzVJKThEQUEQCWYrD0t0yzaX GZZLIdM0Ny9pKiWVqavUps68LV2a2dK8ZYZaRmV5KykNLS85j5H//Z73e573Ah+JiYb4jmSg PJRVyCXBYkKAG55NvtrU2xLq75bQgtGP0gv5dFJBDY9Wa9U4/fZSJY9+eVVGV5rHefRbUx6i 9R87+XR7RRZBm1KrEf2wrteK/tDXxafvz7xA9KhmlkdPPZnE6WJ9KrabYto7WzEmU92KM9O6 rxiTrVcxel0swfR0VhHMt+ZmK6b4biSjGR0hmO/G1wRzrUSHmJ/6VQdtfQWeAWxw4FlW4ep1 XHAqf7IWC9HanTOnZfPUqNYmDlmTQG2H5Kf5RBwSkCIqD4H2TTPGiTEEHd39C+InAl3fH/Qv 8q4udp5FVC6Cynofjr8gaLjpYGGC8obEnOd8S3g51YfBYGoubhEYdQ/BbPow3+JaRm2BNE2R lYVxah3kabtxCwspD0iZjsO5aashJreMsLA15QltTXUE57GHxhuf5j1LKRd4EPVmnrE5f3Rp 5vzaQOWTUP7+6UKjPWCu/kFwvAwGG0qsOF4Js+W3eHGInONISE7awWXjERiyJhayHtDT/Juw eDBqIxRWuHJlbxi6Xs/nonbQNWLPrWAHSYY0jCsL4cplEedeCwWJVQsNHSFhMA9pkDhj0TEZ iw7I+D8rG2E65MCqlDIpq9wmZ8M2KyUypUou3XzytEyP5r6geaZh/DEyTp0wIYpEYluhRh7q L+JLzirDZSYEJCZeLvRpMh8TCQMk4edZxWl/hSqYVZqQE4mLHYTbbg/4iSipJJQNYtkQVvHv lUdaO6rRi/2NXeU1zw50fPay9tIVRa1ZssFnoElwznfXtI1b4RPV0juBE2U5F3cajw5u9T/v 5z5QOP45wjMn9leJ0wMP8mGbs8++k0ecq7MLGiKM0sNIWzraciilv4o9E4nd1vQDEzCsL1qR Y+x1b5+5MB20N2a9w1hESFOPIT482jXscUqrGFeekmxxwRRKyV/1GAkDfgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrLIsWRmVeSWpSXmKPExsVy+t/xe7p3LpTEG6xYIG+xccZ6VotJ6w4w WTRMbGCxuNm4m8niTHeuxe7TX5ksbh5awWix6fE1VovLu+awWRyaupfRYu2Ru+wWDx/cYLVY /e8Uo8WHCf+ZLP7s/8lisXnTVGYHAY/L1y4ye8xuuMji8XfVC2aPBZtKPTat6mTzuHNtD5vH u3Pn2D02L6n3mPDhLZvH+31X2Tz6tqxi9Pi8SS6AJ0rPpii/tCRVISO/uMRWKdrQwkjP0NJC z8jEUs/Q2DzWyshUSd/OJiU1J7MstUjfLkEvY+XPg8wFE/kqTk9fwNTAeJC7i5GTQ0LAROLe kU7GLkYuDiGBpYwS794sYO1i5ABKSEmsnJsOUSMs8edaFxtEzVNGiRvXH7CBJNgEHCX6l55g BUmICLxhlmif+AysillgGaPE4v/9rCBVwgKGEtMnbGAHsVkEVCVWTLzNAmLzClhLTPnbxQKx Ql6iffl2sKmcAjYSl84eAbOFBHIltk/8xARRLyhxcuYTFpDrmAXUJdbPEwIJ8wtoSaxpug42 hhloTPPW2cwTGIVmIemYhdAxC0nVAkbmVYwiqaXFuem5xUZ6xYm5xaV56XrJ+bmbGIFRv+3Y zy07GLveBR9iFOBgVOLhnZBXEi/EmlhWXJl7iFGCg1lJhNfp7Ok4Id6UxMqq1KL8+KLSnNTi Q4ymQG9OZJYSTc4HJiSgHkNTQ3MLS0NzY3NjMwslcd4OgYMxQgLpiSWp2ampBalFMH1MHJxS DYyeR67mvLsedlS+53zFd+cTHwTCnA79mzL3up7l/bOJEcvOfXshLaJmNSviyL5yx3brk45/ tyeVTPyhzGkrKzqNIeaP29r816tb5h60vrT6hNu/PGbW5vAVkp4T7LeZ5OonHCm1cbp/MuPV pFaWNBOTwFQGkd1b5Izyt8Vo+Ri4PQrawZImqaDEUpyRaKjFXFScCAC+VYu6EAMAAA== X-CMS-MailID: 20200930183924eucas1p1eba72052e1723ce75e00cbadbe03b6fa X-Msg-Generator: CA X-RootMTR: 20200930183924eucas1p1eba72052e1723ce75e00cbadbe03b6fa X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200930183924eucas1p1eba72052e1723ce75e00cbadbe03b6fa References: <20200601142754.26139-1-l.stelmach@samsung.com> <20200930183413.17023-1-l.stelmach@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200930_143927_510233_CD0E7CA9 X-CRM114-Status: GOOD ( 17.27 ) X-Spam-Score: -5.7 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [210.118.77.12 listed in wl.mailspike.net] -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.12 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders -0.5 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Szyprowski , =?utf-8?q?=C5=81ukasz_Stelm?= =?utf-8?q?ach?= , Bartlomiej Zolnierkiewicz Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add kexec_image_info to print detailed information about a kexec image. Signed-off-by: Łukasz Stelmach --- arch/arm/kernel/machine_kexec.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 5d84ad333f05..a0c229eec0b2 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -29,6 +29,32 @@ extern unsigned long kexec_boot_atags; static atomic_t waiting_for_crash_ipi; +/** + * kexec_image_info - For debugging output. + */ +#define kexec_image_info(_i) _kexec_image_info(__func__, __LINE__, _i) +static void _kexec_image_info(const char *func, int line, + const struct kimage *kimage) +{ + unsigned long i; + + pr_debug("%s:%d:\n", func, line); + pr_debug(" kexec kimage info:\n"); + pr_debug(" type: %d\n", kimage->type); + pr_debug(" start: %lx\n", kimage->start); + pr_debug(" head: %lx\n", kimage->head); + pr_debug(" nr_segments: %lu\n", kimage->nr_segments); + + for (i = 0; i < kimage->nr_segments; i++) { + pr_debug(" segment[%lu]: %08lx - %08lx, 0x%x bytes, %lu pages\n", + i, + kimage->segment[i].mem, + kimage->segment[i].mem + kimage->segment[i].memsz, + kimage->segment[i].memsz, + kimage->segment[i].memsz / PAGE_SIZE); + } +} + /* * Provide a dummy crash_notes definition while crash dump arrives to arm. * This prevents breakage of crash_notes attribute in kernel/ksysfs.c. @@ -40,6 +66,8 @@ int machine_kexec_prepare(struct kimage *image) __be32 header; int i, err; + kexec_image_info(image); + image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;