From: "Michael S. Tsirkin" <mst@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: virtualization@lists.osdl.org
Subject: Re: INDIRECT and NEXT
Date: Fri, 23 Oct 2009 11:30:21 +0200 [thread overview]
Message-ID: <20091023093021.GB13401@redhat.com> (raw)
In-Reply-To: <200910231950.31241.rusty@rustcorp.com.au>
On Fri, Oct 23, 2009 at 07:50:31PM +1030, Rusty Russell wrote:
> On Fri, 23 Oct 2009 05:06:48 pm Michael S. Tsirkin wrote:
> > On Fri, Oct 23, 2009 at 02:01:23PM +1030, Rusty Russell wrote:
> > > Also, we have a limitation that you can't have more descriptors than the ring
> > > size, even with indirect, due to overzealous checks...
> >
> > Yes ... so I wonder: do we want to fix all this and add a feature bit,
> > or wait until some guest actually wants to use such descriptors?
>
> Yes, we wait until someone wants it. Then (1) we have a test case, and
> (2) we can make sure we don't do those (bogus, frankly) >= ringsize checks.
OK. But for vhost, there's no reason not to do it right directly, right?
guests won't depend on undefined behaviour.
--
MST
prev parent reply other threads:[~2009-10-23 9:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20091004143734.GB17578@redhat.com>
2009-10-19 2:34 ` INDIRECT and NEXT Rusty Russell
2009-10-22 9:37 ` Michael S. Tsirkin
2009-10-23 3:31 ` Rusty Russell
2009-10-23 6:36 ` Michael S. Tsirkin
2009-10-23 9:20 ` Rusty Russell
2009-10-23 9:30 ` Michael S. Tsirkin [this message]
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