linux-kernel - Re: [PATCH 0/2] eventfd: new EFD

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090823133620.GA12841@redhat.com>
Date:	Sun, 23 Aug 2009 16:36:21 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	Davide Libenzi <davidel@...ilserver.org>, gleb@...hat.com,
	kvm@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] eventfd: new EFD_STATE flag

On Sun, Aug 23, 2009 at 04:01:29PM +0300, Avi Kivity wrote:
> On 08/20/2009 09:28 PM, Michael S. Tsirkin wrote:
>>>> I thought the point was to move assigned devices out of KVM?
>>>>
>>>>        
>>> Grr.  Forgot about that.
>>>
>>> That's much more important.
>>>      
>> Looks like we'll have do with a separate char device or
>> something?
>>    
>
> We can still tunnel it through userspace.

More important here is realization that eventfd is a mutex/semaphore
implementation, not a generic event reporting interface as we are trying
to use it.

> Most assigned devices will  
> have MSI.  uio can signal the eventfd when the level changes, qemu can  
> read the level and write it to kvm.
> -- 
> error compiling committee.c: too many arguments to function
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/