linux-kernel - Re: [KVM PATCH v10] kvm: add support for irqfd

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]

Date:	Sun, 14 Jun 2009 16:23:36 +0300
From:	Avi Kivity <avi@...hat.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
CC:	Gregory Haskins <ghaskins@...ell.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, davidel@...ilserver.org,
	mtosatti@...hat.com
Subject: Re: [KVM PATCH v10] kvm: add support for irqfd

Michael S. Tsirkin wrote:

  

>> I think Avi asked for this specific feature during review which is the
>> reason why its there today.  However, I agree that it would probably be
>> a good idea to put an upper limit on the number of supported aliases
>> that can be registered.  Will fix.
>>
>> Thanks Michael,
>>
>> -Greg
>>
>>
>>     
>
>
> Avi, can you elaborate on why do we want to map multiple fds
> to the same gsi? I think it's better to allow a 1:1 mapping
> only: if many processes want to trigger interrupts they can
> all write to the same fd.
>   

I don't want to assume that the eventfds all come from the same source.

That said, we have a workaround, allocate a new gsi with the same routes 
and attach the excess eventfds there.

-- 
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/