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Message-ID: <4733D13A.6010305@codemonkey.ws> Date: Thu, 08 Nov 2007 21:17:14 -0600 From: Anthony Liguori <anthony@...emonkey.ws> To: dor.laor@...ranet.com CC: ron minnich <rminnich@...il.com>, linux-kernel@...r.kernel.org, lguest <lguest@...abs.org>, virtualization@...ts.linux-foundation.org Subject: Re: [Lguest] [PATCH] virtio config_ops refactoring Dor Laor wrote: > ron minnich wrote: >> >> Hi, I'm sorry, I've been stuck on other things (NFS RDMA anyone?) and >> missed part of this discussion. >> >> Is it really the case that operations on virtio devices will involve >> outl/inl etc.? >> > What's the problem with them? > Except for the kick event it's not performance critical and the > difference between pio vmexit > and hypercall exit is very small. If you're a nutty guy who's interesting in creating the most absolute minimal VMM to run exotic paravirtual guests on massive clusters, then requiring PIO implies that you have to have an instruction decoder which is goes against the earlier goal ;-) Regards, Anthony Liguori > I don't know about problems in other architectures, maybe mmio is better? > Dor. >> >> >> Apologies in advance for my failure to pay attention. >> >> thanks >> >> ron >> _______________________________________________ >> Lguest mailing list >> Lguest@...abs.org >> https://ozlabs.org/mailman/listinfo/lguest >> > - 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/
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