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0d84d799ea
Start adding support for virtio-mmio devices starting with block. The devices show within the vm as vda, vdb,... based on order of insertion and such within the VM resemble virtio-blk devices. They need to be explicitly differentiated to ensure that the agent logic within the VM can discover and mount them appropropriately. The agent uses PCI location to discover them for virtio-blk. For virtio-mmio we need to use the predicted device name for now. Note: Kata used a disk for the VM rootfs in the case of Firecracker. (Instead of initrd or virtual-nvdimm). The Kata code today does not handle this case properly. For now as Firecracker is the only Hypervisor in Kata that uses virtio-mmio directly offset the drive index to comprehend this. Longer term we should track if the rootfs is setup as a block device explicitly. Fixes: #1046 Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> Signed-off-by: Manohar Castelino <manohar.r.castelino@intel.com>