On 15/01/18 15:12, Auger Eric wrote:
[...]
>> +/*
>> + * viommu_get_req_size - compute request size
>> + *
>> + * A virtio-iommu request is split into one device-read-only part (top) and
>> one
>> + * device-write-only part (bottom). Given a request, return the sizes of
>> the two
>> + * parts
Hi Jean-Philippe,
please find some comments below.
On 17/11/17 19:52, Jean-Philippe Brucker wrote:
> The virtio IOMMU is a para-virtualized device, allowing to send IOMMU
> requests such as map/unmap over virtio-mmio transport without emulating
> page tables. This implementation handle ATTACH,
On 17/11/17 18:52, Jean-Philippe Brucker wrote:
[...]
> +struct viommu_domain {
> + struct iommu_domain domain;
> + struct viommu_dev *viommu;
> + struct mutexmutex;
> + unsigned intid;
> +
> + spinlock_t
The virtio IOMMU is a para-virtualized device, allowing to send IOMMU
requests such as map/unmap over virtio-mmio transport without emulating
page tables. This implementation handle ATTACH, DETACH, MAP and UNMAP
requests.
The bulk of the code is to create requests and send them through virtio.
