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Subject: [RFC PATCH kvmtool 15/15] virtio: use virtio-iommu when available
This is for development only. Virtual devices might blow up unexpectedly. In general it seems to work (slowing devices down by a factor of two of course). virtio-scsi, virtio-rng and virtio-balloon are still untested. Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com> --- virtio/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/virtio/core.c b/virtio/core.c index 66e0cecb..4ca632f9 100644 --- a/virtio/core.c +++ b/virtio/core.c @@ -1,4 +1,5 @@ #include <linux/virtio_config.h> +#include <linux/virtio_ids.h> #include <linux/virtio_ring.h> #include <linux/types.h> #include <sys/uio.h> @@ -369,6 +370,8 @@ int virtio_init(struct kvm *kvm, void *dev, struct virtio_device *vdev, { void *virtio; + vdev->use_iommu = kvm->cfg.viommu && subsys_id != VIRTIO_ID_IOMMU; + switch (trans) { case VIRTIO_PCI: virtio = calloc(sizeof(struct virtio_pci), 1); -- 2.12.1
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