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From: Bhupesh Sharma <bhsharma@redhat.com>
To: kexec@lists.infradead.org
Cc: dyoung@redhat.com, takahiro.akashi@linaro.org,
	bhsharma@redhat.com, bhupesh.linux@gmail.com,
	james.morse@arm.com
Subject: [RESEND PATCH 2/2] kexec-arm64: Add functionality to dump 2nd dtb
Date: Mon, 19 Mar 2018 16:05:39 +0530	[thread overview]
Message-ID: <1521455739-8022-2-git-send-email-bhsharma@redhat.com> (raw)
In-Reply-To: <1521455739-8022-1-git-send-email-bhsharma@redhat.com>

Since during the arm64 kexec_load()/kdump invocation,
the dtb is passed to the second kernel, it is sometimes useful
to dump the dtb contents (to verify the correctness
of the same).

This patch adds this feature which is enabled when '-d' flag is
used with kexec command line invocation.

Signed-off-by: Bhupesh Sharma <bhsharma@redhat.com>
---
 kexec/arch/arm64/kexec-arm64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kexec/arch/arm64/kexec-arm64.c b/kexec/arch/arm64/kexec-arm64.c
index 62f37585b788..1b54718465b9 100644
--- a/kexec/arch/arm64/kexec-arm64.c
+++ b/kexec/arch/arm64/kexec-arm64.c
@@ -477,9 +477,10 @@ static int setup_2nd_dtb(struct dtb *dtb, char *command_line, int on_crash)
 		dtb->size = fdt_totalsize(new_buf);
 	}
 
+	dbgprintf("%s: found %s\n", __func__, dtb->path);
+	dump_fdt(dtb->buf);
 	dump_reservemap(dtb);
 
-
 	return result;
 
 on_error:
-- 
2.7.4


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  reply	other threads:[~2018-03-19 10:36 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-19 10:35 [RESEND PATCH 1/2] dt-ops: Add helper API to dump fdt blob Bhupesh Sharma
2018-03-19 10:35 ` Bhupesh Sharma [this message]
2018-03-19 14:45 ` AKASHI Takahiro
2018-03-19 19:06   ` Bhupesh Sharma
2018-03-26  8:59     ` Bhupesh Sharma
2018-03-27  9:04       ` AKASHI Takahiro
2018-03-27 13:31         ` James Morse
2018-04-03 13:58           ` Bhupesh Sharma
2018-04-15 19:47             ` Bhupesh Sharma
2018-04-16  8:13             ` Dave Young
2018-04-16 15:09               ` Bhupesh Sharma
2018-04-17  5:17                 ` Dave Young
2018-04-23 10:38                   ` Bhupesh Sharma

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