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0162d73ed8
This crate contains up to date definition of the Queue, AvailIter, DescriptorChain and Descriptor structures forked from the upstream crate rust-vmm/vm-virtio 27b18af01ee2d9564626e084a758a2b496d2c618. The following patches have been applied on top of this base in order to make it work correctly with Cloud Hypervisor requirements: - Add MSI vector field to the Queue In order to help with MSI/MSI-X support, it is convenient to store the value of the interrupt vector inside the Queue directly. - Handle address translations For devices with access to data in memory being translated, we add to the Queue the ability to translate the address stored in the descriptor. It is very helpful as it performs the translation right after the untranslated address is read from memory, avoiding any errors from happening from the consumer's crate perspective. It also allows the consumer to reduce greatly the amount of duplicated code for applying the translation in many different places. - Add helpers for Queue structure They are meant to help crate's consumers getting/setting information about the Queue. These patches can be found on the 'ch' branch from the Cloud Hypervisor fork: https://github.com/cloud-hypervisor/vm-virtio.git This patch takes care of updating the Cloud Hypervisor code in virtio-devices and vm-virtio to build correctly with the latest version of virtio-queue. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> |
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