linux-kernel - [PATCH 3.14 019/158] ARM: 8030/1: ARM : kdump : add arch_crash_save

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Date:	Sun,  4 May 2014 11:38:48 -0400
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Will Deacon <will.deacon@....com>,
	Liu Hua <sdu.liu@...wei.com>,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: [PATCH 3.14 019/158] ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Liu Hua <sdu.liu@...wei.com>

commit 56b700fd6f1e49149880fb1b6ffee0dca5be45fb upstream.

For vmcore generated by LPAE enabled kernel, user space
utility such as crash needs additional infomation to
parse.

So this patch add arch_crash_save_vmcoreinfo as what PAE enabled
i386 linux does.

Reviewed-by: Will Deacon <will.deacon@....com>
Signed-off-by: Liu Hua <sdu.liu@...wei.com>
Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/kernel/machine_kexec.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -184,3 +184,10 @@ void machine_kexec(struct kimage *image)
 
 	soft_restart(reboot_entry_phys);
 }
+
+void arch_crash_save_vmcoreinfo(void)
+{
+#ifdef CONFIG_ARM_LPAE
+	VMCOREINFO_CONFIG(ARM_LPAE);
+#endif
+}


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