From 45f2c47f26472e6fa8fa23206fac7d63d32019fe Mon Sep 17 00:00:00 2001
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Date: Thu, 29 Jun 2006 15:08:25 +0200
Subject: [PATCH] --- yaml --- r: 31129 b: refs/heads/master c:
 585c3047a881d0f54b93a0dd8ab499b07ed25d09 h: refs/heads/master i:   31127:
 0ba6814ae6c74bc7aac758594272223f756c98bf v: v3

---
 [refs]                                    |  2 +-
 trunk/Documentation/kernel-parameters.txt |  9 ++++--
 trunk/arch/s390/kernel/setup.c            | 34 +++++++++++++++++++++++
 3 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index 65ec257af879..62d495e43182 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 405455734e1cdec09c37233216f9240cb1a058e5
+refs/heads/master: 585c3047a881d0f54b93a0dd8ab499b07ed25d09
diff --git a/trunk/Documentation/kernel-parameters.txt b/trunk/Documentation/kernel-parameters.txt
index 0d189c93eeaf..25f8d20dac53 100644
--- a/trunk/Documentation/kernel-parameters.txt
+++ b/trunk/Documentation/kernel-parameters.txt
@@ -1689,9 +1689,14 @@ running once the system is up.
 			decrease the size and leave more room for directly
 			mapped kernel RAM.
 
-	vmhalt=		[KNL,S390]
+	vmhalt=		[KNL,S390] Perform z/VM CP command after system halt.
+			Format: <command>
 
-	vmpoff=		[KNL,S390]
+	vmpanic=	[KNL,S390] Perform z/VM CP command after kernel panic.
+			Format: <command>
+
+	vmpoff=		[KNL,S390] Perform z/VM CP command after power off.
+			Format: <command>
 
 	waveartist=	[HW,OSS]
 			Format: <io>,<irq>,<dma>,<dma2>
diff --git a/trunk/arch/s390/kernel/setup.c b/trunk/arch/s390/kernel/setup.c
index 813444aac7d7..2b2551e3510b 100644
--- a/trunk/arch/s390/kernel/setup.c
+++ b/trunk/arch/s390/kernel/setup.c
@@ -37,6 +37,7 @@
 #include <linux/seq_file.h>
 #include <linux/kernel_stat.h>
 #include <linux/device.h>
+#include <linux/notifier.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -115,6 +116,7 @@ void __devinit cpu_init (void)
  */
 char vmhalt_cmd[128] = "";
 char vmpoff_cmd[128] = "";
+char vmpanic_cmd[128] = "";
 
 static inline void strncpy_skip_quote(char *dst, char *src, int n)
 {
@@ -146,6 +148,38 @@ static int __init vmpoff_setup(char *str)
 
 __setup("vmpoff=", vmpoff_setup);
 
+static int vmpanic_notify(struct notifier_block *self, unsigned long event,
+			  void *data)
+{
+	if (MACHINE_IS_VM && strlen(vmpanic_cmd) > 0)
+		cpcmd(vmpanic_cmd, NULL, 0, NULL);
+
+	return NOTIFY_OK;
+}
+
+#define PANIC_PRI_VMPANIC	0
+
+static struct notifier_block vmpanic_nb = {
+	.notifier_call = vmpanic_notify,
+	.priority = PANIC_PRI_VMPANIC
+};
+
+static int __init vmpanic_setup(char *str)
+{
+	static int register_done __initdata = 0;
+
+	strncpy_skip_quote(vmpanic_cmd, str, 127);
+	vmpanic_cmd[127] = 0;
+	if (!register_done) {
+		register_done = 1;
+		atomic_notifier_chain_register(&panic_notifier_list,
+					       &vmpanic_nb);
+	}
+	return 1;
+}
+
+__setup("vmpanic=", vmpanic_setup);
+
 /*
  * condev= and conmode= setup parameter.
  */