On Wed, Apr 29, 2020 at 12:26:43PM +0200, Jan Kiszka wrote: > On 29.04.20 12:20, Michael S. Tsirkin wrote: > > On Wed, Apr 29, 2020 at 03:39:53PM +0530, Srivatsa Vaddagiri wrote: > > > That would still not work I think where swiotlb is used for pass-thr > > > devices > > > (when private memory is fine) as well as virtio devices (when shared > > > memory is > > > required). > > > > So that is a separate question. When there are multiple untrusted > > devices, at the moment it looks like a single bounce buffer is used. > > > > Which to me seems like a security problem, I think we should protect > > untrusted devices from each other. > > > > Definitely. That's the model we have for ivshmem-virtio as well. > > Jan
Want to try implementing that? > -- > Siemens AG, Corporate Technology, CT RDA IOT SES-DE > Corporate Competence Center Embedded Linux _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
