From: Mihai Donțu <[email protected]> This action is used in extreme cases such as blocking the spread of malware as fast as possible.
Signed-off-by: Mihai Donțu <[email protected]> Signed-off-by: Adalbert Lazăr <[email protected]> --- virt/kvm/introspection/kvmi.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/virt/kvm/introspection/kvmi.c b/virt/kvm/introspection/kvmi.c index 02a866ca8d8c..9e0014bbf9a6 100644 --- a/virt/kvm/introspection/kvmi.c +++ b/virt/kvm/introspection/kvmi.c @@ -749,9 +749,37 @@ static void kvmi_handle_unsupported_event_action(struct kvm *kvm) kvmi_sock_shutdown(KVMI(kvm)); } +static int kvmi_vcpu_kill(int sig, struct kvm_vcpu *vcpu) +{ + struct kernel_siginfo siginfo[1] = {}; + int err = -ESRCH; + struct pid *pid; + + rcu_read_lock(); + pid = rcu_dereference(vcpu->pid); + if (pid) + err = kill_pid_info(sig, siginfo, pid); + rcu_read_unlock(); + + return err; +} + +static void kvmi_vm_shutdown(struct kvm *kvm) +{ + struct kvm_vcpu *vcpu; + int i; + + kvm_for_each_vcpu(i, vcpu, kvm) + kvmi_vcpu_kill(SIGTERM, vcpu); +} + void kvmi_handle_common_event_actions(struct kvm *kvm, u32 action) { switch (action) { + case KVMI_EVENT_ACTION_CRASH: + kvmi_vm_shutdown(kvm); + break; + default: kvmi_handle_unsupported_event_action(kvm); } _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
