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This patch is based on Aviv Ben-David (<bd.aviv@gmail.com>)'s patch upstream: "IOMMU: enable intel_iommu map and unmap notifiers" https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg01453.html However I removed/fixed some content, and added my own codes. Instead of translate() every page for iotlb invalidations (which is slower), we walk the pages when needed and notify in a hook function. This patch enables vfio devices for VT-d emulation. And, since we already have vhost DMAR support via device-iotlb, a natural benefit that this patch brings is that vt-d enabled vhost can live even without ATS capability now. Though more tests are needed. Signed-off-by: Aviv Ben-David <bdaviv@cs.technion.ac.il> Reviewed-by: Jason Wang <jasowang@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: \"Michael S. Tsirkin\" <mst@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1491562755-23867-10-git-send-email-peterx@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> |
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| block | ||
| crypto | ||
| disas | ||
| exec | ||
| fpu | ||
| hw | ||
| io | ||
| libdecnumber | ||
| migration | ||
| monitor | ||
| net | ||
| qapi | ||
| qemu | ||
| qom | ||
| standard-headers | ||
| sysemu | ||
| ui | ||
| elf.h | ||
| glib-compat.h | ||
| qemu-common.h | ||
| qemu-io.h | ||
| trace-tcg.h | ||