Messages in this thread | | | Date | Mon, 6 Aug 2018 19:13:32 +0300 | From | "Michael S. Tsirkin" <> | Subject | Re: [RFC 0/4] Virtio uses DMA API for all devices |
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On Mon, Aug 06, 2018 at 09:10:40AM -0700, Christoph Hellwig wrote: > On Mon, Aug 06, 2018 at 07:06:05PM +0300, Michael S. Tsirkin wrote: > > > I've done something very similar in the thread I posted a few years > > > ago. > > > > Right so that was before spectre where a virtual call was cheaper :( > > Sorry, I meant days, not years. The whole point of the thread was the > slowdowns due to retpolines, which are the software spectre mitigation.
Oh that makes sense then. Could you post a pointer pls so this patchset is rebased on top (there are things to change about 4/4 but 1-3 could go in if they don't add overhead)?
-- MST
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