From: "Łukasz Stelmach" <l.stelmach@samsung.com>
To: Russell King <linux@armlinux.org.uk>,
Masahiro Yamada <masahiroy@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Enrico Weigelt <info@metux.net>,
Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@kernel.org>,
Ben Dooks <ben-linux@fluff.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: "AKASHI Takahiro" <takahiro.akashi@linaro.org>,
"Bartlomiej Zolnierkiewicz" <b.zolnierkie@samsung.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Łukasz Stelmach" <l.stelmach@samsung.com>
Subject: [PATCH v2 4/5] arm: Add kexec_image_info
Date: Tue, 2 Jun 2020 18:17:30 +0200 [thread overview]
Message-ID: <20200602161731.23033-5-l.stelmach@samsung.com> (raw)
In-Reply-To: <20200602161731.23033-1-l.stelmach@samsung.com>
Add kexec_image_info to print detailed information about a kexec image.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
---
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 76300f3813e8..c10a2dfd53d1 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -31,6 +31,32 @@ 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.
@@ -42,6 +68,8 @@ 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;
--
2.26.2
next prev parent reply other threads:[~2020-06-02 16:17 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200601142806eucas1p2680c5625411e7a695d8469760a926520@eucas1p2.samsung.com>
2020-06-01 14:27 ` [PATCH 0/5] kexec_file_load() for arm Łukasz Stelmach
[not found] ` <CGME20200601142810eucas1p1767585cf172d26aedb551d7453aa7402@eucas1p1.samsung.com>
2020-06-01 14:27 ` [PATCH 1/5] arm: decompressor: set malloc pool size for the decompressor Łukasz Stelmach
2020-06-01 14:46 ` Russell King - ARM Linux admin
[not found] ` <CGME20200601145652eucas1p11dcea1cea21824d0a6bfe6ab38c1cab7@eucas1p1.samsung.com>
2020-06-01 14:56 ` Lukasz Stelmach
2020-06-01 15:10 ` Russell King - ARM Linux admin
[not found] ` <CGME20200601165420eucas1p273e0cdb143312b9a621e2444c5daae9b@eucas1p2.samsung.com>
2020-06-01 16:54 ` Lukasz Stelmach
[not found] ` <CGME20200601142810eucas1p23056f7997a880ff7d676c64703f87115@eucas1p2.samsung.com>
2020-06-01 14:27 ` [PATCH 2/5] arm: add image header definitions Łukasz Stelmach
[not found] ` <CGME20200601142810eucas1p1c42ff7c9b417f04bc506261726f08b4f@eucas1p1.samsung.com>
2020-06-01 14:27 ` [PATCH 3/5] arm: decompressor: define a new zImage tag Łukasz Stelmach
2020-06-01 14:55 ` Russell King - ARM Linux admin
[not found] ` <CGME20200601162002eucas1p28eb08a42de6f313458e9391bd5976e90@eucas1p2.samsung.com>
2020-06-01 16:19 ` Lukasz Stelmach
2020-06-01 18:25 ` Russell King - ARM Linux admin
[not found] ` <CGME20200601202757eucas1p11d380be9e0b2fe912a358d21e2d8dc2a@eucas1p1.samsung.com>
2020-06-01 20:27 ` Lukasz Stelmach
2020-06-01 20:41 ` Russell King - ARM Linux admin
[not found] ` <CGME20200602161720eucas1p257e9e892ed4679ed1d168db34d089a82@eucas1p2.samsung.com>
2020-06-02 16:17 ` Lukasz Stelmach
[not found] ` <CGME20200601142811eucas1p260e5a434ea7743eecdb37c4d975c5f05@eucas1p2.samsung.com>
2020-06-01 14:27 ` [PATCH 4/5] arm: Add kexec_image_info Łukasz Stelmach
2020-06-01 14:56 ` Russell King - ARM Linux admin
[not found] ` <CGME20200601163034eucas1p1f9c726b605c18bf3944254cd83dd67b3@eucas1p1.samsung.com>
2020-06-01 16:30 ` Lukasz Stelmach
[not found] ` <CGME20200601142811eucas1p1604c8e6ca06c09f1ec821ea5e1918c53@eucas1p1.samsung.com>
2020-06-01 14:27 ` [PATCH 5/5] arm: kexec_file: load zImage or uImage, initrd and dtb Łukasz Stelmach
2020-06-01 15:07 ` Russell King - ARM Linux admin
2020-06-01 15:14 ` Russell King - ARM Linux admin
[not found] ` <CGME20200601164700eucas1p2e30af458bae7e820ca55f7936ac3579a@eucas1p2.samsung.com>
2020-06-01 16:46 ` Lukasz Stelmach
[not found] ` <CGME20200601184829eucas1p1b06bfc130083f6248d624febed1de9fc@eucas1p1.samsung.com>
2020-06-01 18:48 ` Lukasz Stelmach
[not found] ` <CGME20200602161737eucas1p241dd0e0a9b5eea7c5d5774c46b3c570b@eucas1p2.samsung.com>
2020-06-02 16:17 ` [PATCH v2 0/5] kexec_file_load() for arm Łukasz Stelmach
[not found] ` <CGME20200602161737eucas1p2c83700f7c17296c4367ee3fda1c6e783@eucas1p2.samsung.com>
2020-06-02 16:17 ` [PATCH v2 1/5] arm: decompressor: set malloc pool size for the decompressor Łukasz Stelmach
[not found] ` <CGME20200602161738eucas1p27dfbe386bd76555598d5574faf4fdad3@eucas1p2.samsung.com>
2020-06-02 16:17 ` [PATCH v2 2/5] arm: add image header definitions Łukasz Stelmach
[not found] ` <CGME20200602161738eucas1p2151f88b526bb009c27820a4f290a961e@eucas1p2.samsung.com>
2020-06-02 16:17 ` [PATCH v2 3/5] arm: decompressor: define a new zImage tag Łukasz Stelmach
[not found] ` <CGME20200602161738eucas1p2ccfaa7610dc6f76e209ba96d6278259e@eucas1p2.samsung.com>
2020-06-02 16:17 ` Łukasz Stelmach [this message]
[not found] ` <CGME20200602161739eucas1p16a56ff590bf44e747d5ad6e178d57067@eucas1p1.samsung.com>
2020-06-02 16:17 ` [PATCH v2 5/5] arm: kexec_file: load zImage or uImage, initrd and dtb Łukasz Stelmach
2020-06-11 10:37 ` [PATCH 0/5] kexec_file_load() for arm Dave Young
[not found] ` <CGME20200930183921eucas1p11a56f805421a614be67f869f5ed18b9b@eucas1p1.samsung.com>
2020-09-30 18:34 ` [PATCH v3 0/4] " Łukasz Stelmach
[not found] ` <CGME20200930183923eucas1p2241d3e1b8d4d05a2228448ff8fc4bb74@eucas1p2.samsung.com>
2020-09-30 18:34 ` [PATCH v3 1/4] arm: add image header definitions Łukasz Stelmach
[not found] ` <CGME20200930183924eucas1p2869520cc28e705073cb08c37c1e2fc6d@eucas1p2.samsung.com>
2020-09-30 18:34 ` [PATCH v3 2/4] arm: decompressor: define a new zImage tag Łukasz Stelmach
[not found] ` <CGME20200930183924eucas1p1eba72052e1723ce75e00cbadbe03b6fa@eucas1p1.samsung.com>
2020-09-30 18:34 ` [PATCH v3 3/4] arm: Add kexec_image_info Łukasz Stelmach
[not found] ` <CGME20200930183924eucas1p281730f3d651fc2c78d6a95e47a2c5220@eucas1p2.samsung.com>
2020-09-30 18:34 ` [PATCH v3 4/4] arm: kexec_file: load zImage or uImage, initrd and dtb Łukasz Stelmach
2020-10-01 10:09 ` kernel test robot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200602161731.23033-5-l.stelmach@samsung.com \
--to=l.stelmach@samsung.com \
--cc=b.zolnierkie@samsung.com \
--cc=ben-linux@fluff.org \
--cc=info@metux.net \
--cc=keescook@chromium.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=m.szyprowski@samsung.com \
--cc=masahiroy@kernel.org \
--cc=mingo@kernel.org \
--cc=ndesaulniers@google.com \
--cc=takahiro.akashi@linaro.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).