From 7c207b90465bc16a39b9fb8d9194f161059f69bf Mon Sep 17 00:00:00 2001
From: Andrey Smetanin <asmetanin@virtuozzo.com>
Date: Fri, 3 Jul 2015 15:01:43 +0300
Subject: [PATCH] kvm: Add kvm system event crash handler
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KVM kernel can send guest crash events into userspace.
Appropriate guest crash handler is called when kernel guest
crash event received. Guest crash event recognized by a
KVM_SYSTEM_EVENT_CRASH type of system event.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Andreas Färber <afaerber@suse.de>
Message-Id: <1435924905-8926-11-git-send-email-den@openvz.org>
[Rebase: add lock/unlock iothread around qemu_system_guest_panicked - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
kvm-all.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/kvm-all.c b/kvm-all.c
index c6f5128756..de1924c467 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1889,6 +1889,12 @@ int kvm_cpu_exec(CPUState *cpu)
qemu_system_reset_request();
ret = EXCP_INTERRUPT;
break;
+ case KVM_SYSTEM_EVENT_CRASH:
+ qemu_mutex_lock_iothread();
+ qemu_system_guest_panicked();
+ qemu_mutex_unlock_iothread();
+ ret = 0;
+ break;
default:
DPRINTF("kvm_arch_handle_exit\n");
ret = kvm_arch_handle_exit(cpu, run);
--
2.30.2