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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>
This commit is contained in:
Andrey Smetanin 2015-07-03 15:01:43 +03:00 • committed by Paolo Bonzini
parent bac05aa9a7
commit 7c207b9046
1 changed files with 6 additions and 0 deletions
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6
kvm-all.c
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@ -1889,6 +1889,12 @@ int kvm_cpu_exec(CPUState *cpu)
qemu_system_reset_request(); qemu_system_reset_request();
ret = EXCP_INTERRUPT; ret = EXCP_INTERRUPT;
break; break;
case KVM_SYSTEM_EVENT_CRASH:
qemu_mutex_lock_iothread();
qemu_system_guest_panicked();
qemu_mutex_unlock_iothread();
ret = 0;
break;
default: default:
DPRINTF("kvm_arch_handle_exit\n"); DPRINTF("kvm_arch_handle_exit\n");
ret = kvm_arch_handle_exit(cpu, run); ret = kvm_arch_handle_exit(cpu, run);