linux-kernel - Re: [PATCH v8 0/6] kvm: level irqfd support

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Message-ID: <20120816165426.GB22518@redhat.com>
Date:	Thu, 16 Aug 2012 19:54:26 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	Alex Williamson <alex.williamson@...hat.com>, gleb@...hat.com,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 0/6] kvm: level irqfd support

On Thu, Aug 16, 2012 at 07:39:35PM +0300, Avi Kivity wrote:
> On 08/16/2012 07:36 PM, Michael S. Tsirkin wrote:
> 
> >> What if a level irqfd shares a line with a KVM_IRQ_LINE ioctl?  Then an
> >> EOI can de-assert the irqfd source, but the line is kept high by the
> >> last KVM_IRQ_LINE invocation.
> > 
> > Exactly. So 1 ID for userspace and 1 for irqfd.
> 
> Gaa, this mess belongs in userspace.

Not sure I understand what you refer to.

I meant simply
#define KVM_IRQFD_IRQ_SOURCE_ID    1
request it at kvm init.

As opposed to using KVM_USERSPACE_IRQ_SOURCE_ID like we do now
for edge.
Does this seem acceptable to you?

> -- 
> error compiling committee.c: too many arguments to function
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