search for: head_ptr

...+ ret = _viommu_send_reqs_sync(viommu, req, nr, &sent); + spin_unlock_irqrestore(&viommu->vq_lock, flags); + + *nr_sent += sent; + req += sent; + nr -= sent; + } while (ret == -EAGAIN); + + return ret; +} + +/** + * viommu_send_req_sync - send one request and wait for reply + * + * @head_ptr: pointer to a virtio_iommu_req_* structure + * + * Returns 0 if the request was successful, or an error number otherwise. No + * distinction is done between transport and request errors. + */ +static int viommu_send_req_sync(struct viommu_dev *viommu, void *head_ptr) +{ + int ret; + int nr_sent; +...

...pin_unlock_irqrestore(&viommu->vq_lock, flags); > + > + *nr_sent += sent; > + req += sent; > + nr -= sent; > + } while (ret == -EAGAIN); > + > + return ret; > +} > + > +/** > + * viommu_send_req_sync - send one request and wait for reply > + * > + * @head_ptr: pointer to a virtio_iommu_req_* structure > + * > + * Returns 0 if the request was successful, or an error number > +otherwise. No > + * distinction is done between transport and request errors. > + */ > +static int viommu_send_req_sync(struct viommu_dev *viommu, void > +*head...

...pin_unlock_irqrestore(&viommu->vq_lock, flags); > + > + *nr_sent += sent; > + req += sent; > + nr -= sent; > + } while (ret == -EAGAIN); > + > + return ret; > +} > + > +/** > + * viommu_send_req_sync - send one request and wait for reply > + * > + * @head_ptr: pointer to a virtio_iommu_req_* structure > + * > + * Returns 0 if the request was successful, or an error number > +otherwise. No > + * distinction is done between transport and request errors. > + */ > +static int viommu_send_req_sync(struct viommu_dev *viommu, void > +*head...

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