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| From: | Avi Kivity |
| Subject: | Re: [Qemu-devel] [big lock] Discussion about the convention of device's DMA each other after breaking down biglock |
| Date: | Thu, 27 Sep 2012 12:08:56 +0200 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0 |
On 09/27/2012 11:36 AM, Paolo Bonzini wrote: > Il 27/09/2012 11:34, Avi Kivity ha scritto: >>> > virtio-net is per-spec not going through the iommu. >> What's that smell? A feature bit? > > Why is it a bad thing that it does not go through the iommu? You can't assign the device to nested guests or to guest userspace via vfio. Some guests may want to use the iommu even in the guest kernel context. -- error compiling committee.c: too many arguments to function
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