linux-kernel - Re: [PATCH v2 5/6] kvm: KVM

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Message-ID: <20120627152029.GB21393@redhat.com>
Date:	Wed, 27 Jun 2012 18:20:29 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Alex Williamson <alex.williamson@...hat.com>
Cc:	avi@...hat.com, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	jan.kiszka@...mens.com
Subject: Re: [PATCH v2 5/6] kvm: KVM_EOIFD, an eventfd for EOIs

On Tue, Jun 26, 2012 at 11:10:08PM -0600, Alex Williamson wrote:
> +static void eoifd_event(struct kvm_irq_ack_notifier *notifier)
> +{
> +	struct _eoifd *eoifd;
> +
> +	eoifd = container_of(notifier, struct _eoifd, notifier);
> +
> +	if (eoifd->source)
> +		kvm_set_irq(eoifd->kvm, eoifd->source->id,
> +			    eoifd->notifier.gsi, 0);

Let's add a comment here explaining why it's a safe thing
to do, which is, userspace will check status and reinject if
necessary.

-- 
MST
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