linux-kernel - [PATCH 3.13 082/160] ARM: 8030/1: ARM : kdump : add arch_crash_save

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Message-Id: <1402429600-20477-83-git-send-email-kamal@canonical.com>
Date:	Tue, 10 Jun 2014 12:45:22 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Liu Hua <sdu.liu@...wei.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 082/160] ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo

3.13.11.3 -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: Kamal Mostafa <kamal@...onical.com>
---
 arch/arm/kernel/machine_kexec.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index f0d180d..8cf0996 100644
--- 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
+}
-- 
1.9.1

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