From: Mihai Dontu <mdontu@xxxxxxxxxxxxxxx>
This function is used by the introspection subsystem to shutdown
a specific VM.
Signed-off-by: Mihai Dontu <mdontu@xxxxxxxxxxxxxxx>
---
include/linux/kvm_host.h | 1 +
virt/kvm/kvm_main.c | 27 +++++++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 545964ed6a63..2f00b5c64632 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -555,6 +555,7 @@ void kvm_exit(void);
void kvm_enum(int (*enum_cb) (const struct kvm *kvm, void *param),
void *param);
struct kvm *kvm_from_uuid(const uuid_le *uuid);
+void kvm_vm_shutdown(struct kvm *kvm);
void kvm_get_kvm(struct kvm *kvm);
void kvm_put_kvm(struct kvm *kvm);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 31bcdc92f1ea..52d92fcf39ff 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -4084,3 +4084,30 @@ struct kvm *kvm_from_uuid(const uuid_le *uuid)
spin_unlock(&kvm_lock);
return found;
}
+
+static int kvm_vcpu_kill(int sig, struct kvm_vcpu *vcpu)
+{
+ int err = -ESRCH;
+ struct pid *pid;
+ struct siginfo siginfo[1] = { };
+
+ rcu_read_lock();
+ pid = rcu_dereference(vcpu->pid);
+ if (pid)
+ err = kill_pid_info(sig, siginfo, pid);
+ rcu_read_unlock();
+
+ return err;
+}
+
+void kvm_vm_shutdown(struct kvm *kvm)
+{
+ int i;
+ struct kvm_vcpu *vcpu;
+
+ mutex_lock(&kvm->lock);
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ kvm_vcpu_kill(SIGTERM, vcpu);
+ }
+ mutex_unlock(&kvm->lock);
+}
--
2.12.2
