search for: vhost_iommu_add_device

...rite the vhost fd. A multicast transport method will be needed. Until then, this can work. Details of operations would be: (1) Userspace sets up vhost-iommu as with other vhost devices, by using standard vhost ioctls. Userspace starts by describing the system topology via ioctl: ioctl(iommu_fd, VHOST_IOMMU_ADD_DEVICE, struct vhost_iommu_add_device) #define VHOST_IOMMU_DEVICE_TYPE_VFIO #define VHOST_IOMMU_DEVICE_TYPE_TLB struct vhost_iommu_add_device { __u8 type; __u32 devid; union { struct vhost_iommu_device_vfio { int vfio_group_fd; }; struct vhost_iommu_device_tlb { int fd;...

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future