On Wed, Apr 29, 2020 at 03:14:10PM +0530, Srivatsa Vaddagiri wrote: > * Michael S. Tsirkin <m...@redhat.com> [2020-04-29 02:50:41]: > > > So it seems that with modern Linux, all one needs > > to do on x86 is mark the device as untrusted. > > It's already possible to do this with ACPI and with OF - would that be > > sufficient for achieving what this patchset is trying to do? > > In my case, its not sufficient to just mark virtio device untrusted and thus > activate the use of swiotlb. All of the secondary VM memory, including those > allocate by swiotlb driver, is private to it.
So why not make the bounce buffer memory shared then? > An additional piece of memory is > available to secondary VM which is shared between VMs and which is where I > need > swiotlb driver to do its work. > > -- > QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member > of Code Aurora Forum, hosted by The Linux Foundation _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
