linux-kernel - Re: [PATCH 0/1] uio_pci_generic: extensions to allow access for non-privileged processes

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Date:	Thu, 01 Apr 2010 18:54:14 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Tom Lyon <pugs@...n-about.com>
CC:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/1] uio_pci_generic: extensions to allow access for non-privileged
 processes

On 04/01/2010 06:39 PM, Tom Lyon wrote:
>
>
>>> - support for MSI and MSI-X interrupts (the intel 82599 VFs support only
>>> MSI-X)
>>>        
>> How does a userspace program receive those interrupts?
>>      
> Same as other UIO drivers - by read()ing an event counter.
>    

IIRC the usual event counter is /dev/uioX, what's your event counter now?

kvm really wants the event counter to be an eventfd, that allows hooking 
it directly to kvm (which can inject an interrupt on an eventfd_signal), 
can you adapt your patch to do this?

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

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