On 2021-06-05 11:48, Sergey Senozhatsky wrote:
On (21/06/05 10:00), Marc Zyngier wrote:
> +static int kvm_arch_suspend_notifier(struct kvm *kvm)
> +{
> + struct kvm_vcpu *vcpu;
> + int i, ret;
> +
> + mutex_lock(&kvm->lock);
> + kvm_for_each_vcpu(i, vcpu, kvm) {
> + ret = kvm_set_guest_paused(vcpu);
> + if (ret) {
> + pr_err("Failed to pause guest VCPU%d: %d\n",
> + vcpu->vcpu_id, ret);
how useful the pr_err() is, given that it contains no information
that would help identifying which guest failed to pause.
Do other printk-s contain such info? All I can see so far is
`#define pr_fmt(fmt) "kvm-guest: " fmt` which doesn't point
at any particular VM.
Look for kvm_{err,info,debug...} and vcpu_{err,debug...}, all of
which will at least give you a PID. Even x86 uses it.
M.
--
Jazz is not dead. It just smells funny...
