From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Marc Zyngier <maz@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Suleiman Souhlal <suleiman@google.com>,
x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCHv2 2/2] kvm: x86: implement KVM PM-notifier
Date: Sat, 5 Jun 2021 19:48:46 +0900 [thread overview]
Message-ID: <YLtWjiFb62RFLWzA@google.com> (raw)
In-Reply-To: <87k0n8u1nk.wl-maz@kernel.org>
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.
next prev parent reply other threads:[~2021-06-05 10:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-05 2:30 [PATCHv2 1/2] kvm: add PM-notifier Sergey Senozhatsky
2021-06-05 2:30 ` [PATCHv2 2/2] kvm: x86: implement KVM PM-notifier Sergey Senozhatsky
2021-06-05 9:00 ` Marc Zyngier
2021-06-05 9:58 ` Sergey Senozhatsky
2021-06-05 10:03 ` Sergey Senozhatsky
2021-06-05 10:15 ` Marc Zyngier
2021-06-05 10:26 ` Sergey Senozhatsky
2021-06-05 10:48 ` Sergey Senozhatsky [this message]
2021-06-05 11:27 ` Marc Zyngier
2021-06-05 11:32 ` Sergey Senozhatsky
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