diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 695399f..deae820 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -133,4 +133,30 @@ static inline void kvm_disable_steal_time(void)
 }
 #endif
 
+/* The bit of supported pv event */
+#define KVM_PV_FEATURE_PANICKED	0
+
+/* The pv event value */
+#define KVM_PV_EVENT_PANICKED	1
+
+static inline unsigned int kvm_arch_pv_features(void)
+{
+	return inl(KVM_PV_EVENT_PORT);
+}
+
+static inline unsigned int kvm_arch_pv_has_feature(unsigned int feature)
+{
+	if (kvm_arch_pv_features() & (1UL << feature))
+		return 1;
+	return 0;
+}
+
+static inline void kvm_arch_pv_send_event(unsigned int event)
+{
+	outl(event, KVM_PV_EVENT_PORT);
+}
+
+bool kvm_arch_pv_event_enabled(void);
+int kvm_arch_pv_event_init(void);
+
 #endif /* _ASM_X86_KVM_PARA_H */
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
index 06fdbd9..c15ef33 100644
--- a/arch/x86/include/uapi/asm/kvm_para.h
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -96,5 +96,7 @@ struct kvm_vcpu_pv_apf_data {
 #define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK
 #define KVM_PV_EOI_DISABLED 0x0
 
+#define KVM_PV_EVENT_PORT	(0x505UL)
+
 
 #endif /* _UAPI_ASM_X86_KVM_PARA_H */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 7bd3bd3..f0629b2 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -80,7 +80,7 @@ obj-$(CONFIG_DEBUG_RODATA_TEST)	+= test_rodata.o
 obj-$(CONFIG_DEBUG_NX_TEST)	+= test_nx.o
 obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
 
-obj-$(CONFIG_KVM_GUEST)		+= kvm.o kvmclock.o
+obj-$(CONFIG_KVM_GUEST)		+= kvm.o kvmclock.o kvm_panic.o
 obj-$(CONFIG_PARAVIRT)		+= paravirt.o paravirt_patch_$(BITS).o
 obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= paravirt-spinlocks.o
 obj-$(CONFIG_PARAVIRT_CLOCK)	+= pvclock.o
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index b686a90..727ef91 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -73,6 +73,20 @@ static int parse_no_kvmclock_vsyscall(char *arg)
 
 early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall);
 
+static int pv_event = 1;
+static int parse_no_pv_event(char *arg)
+{
+	pv_event = 0;
+	return 0;
+}
+
+bool kvm_arch_pv_event_enabled(void)
+{
+	return !!pv_event;
+}
+
+early_param("no-pv-event", parse_no_pv_event);
+
 static DEFINE_PER_CPU(struct kvm_vcpu_pv_apf_data, apf_reason) __aligned(64);
 static DEFINE_PER_CPU(struct kvm_steal_time, steal_time) __aligned(64);
 static int has_steal_clock = 0;
@@ -386,6 +400,17 @@ static struct notifier_block kvm_pv_reboot_nb = {
 	.notifier_call = kvm_pv_reboot_notify,
 };
 
+static int
+kvm_pv_panic_notify(struct notifier_block *nb, unsigned long code, void *unused)
+{
+	kvm_arch_pv_send_event(KVM_PV_EVENT_PANICKED);
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block kvm_pv_panic_nb = {
+	.notifier_call = kvm_pv_panic_notify,
+};
+
 static u64 kvm_steal_clock(int cpu)
 {
 	u64 steal;
@@ -463,6 +488,23 @@ static void __init kvm_apf_trap_init(void)
 	set_intr_gate(14, &async_page_fault);
 }
 
+static void __init kvm_pv_panicked_event_init(void)
+{
+	if (kvm_arch_pv_has_feature(KVM_PV_FEATURE_PANICKED))
+		atomic_notifier_chain_register(&panic_notifier_list,
+			&kvm_pv_panic_nb);
+}
+
+static void enable_pv_event(void)
+{
+	if (pv_event) {
+		if (kvm_arch_pv_event_init())
+			return;
+
+		kvm_pv_panicked_event_init();
+	}
+}
+
 void __init kvm_guest_init(void)
 {
 	int i;
@@ -494,6 +536,8 @@ void __init kvm_guest_init(void)
 #else
 	kvm_guest_cpu_init();
 #endif
+
+	enable_pv_event();
 }
 
 static bool __init kvm_detect(void)
diff --git a/arch/x86/kernel/kvm_panic.c b/arch/x86/kernel/kvm_panic.c
new file mode 100644
index 0000000..3df23b7
--- /dev/null
+++ b/arch/x86/kernel/kvm_panic.c
@@ -0,0 +1,32 @@
+/*
+ * KVM panic notification implementation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright (C) 2013, Fujitsu, Inc.
+ *   Authors: Wen Congyang <wency@cn.fujitsu.com>
+ *   Authors: Hu Tao <hutao@cn.fujitsu.com>
+ */
+
+#include <uapi/asm/kvm_para.h>
+#include <linux/ioport.h>
+
+int kvm_arch_pv_event_init(void)
+{
+	if (!request_region(KVM_PV_EVENT_PORT, 4, "KVM_PV_EVENT"))
+		return -1;
+
+	return 0;
+}
diff --git a/kernel/panic.c b/kernel/panic.c
index e1b2822..06dd477 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/nmi.h>
 #include <linux/dmi.h>
+#include <linux/kvm_para.h>
 
 #define PANIC_TIMER_STEP 100
 #define PANIC_BLINK_SPD 18
@@ -132,6 +133,9 @@ void panic(const char *fmt, ...)
 	if (!panic_blink)
 		panic_blink = no_blink;
 
+	if (kvm_arch_pv_event_enabled())
+		panic_timeout = 0;
+
 	if (panic_timeout > 0) {
 		/*
 		 * Delay timeout seconds before rebooting the machine.
