Sebastien Boeuf b67e0b3dad vmm: Use virtio-blk to support booting from disk image ... After the virtio-blk device support has been introduced in the previous commit, the vmm need to rely on this new device to boot from disk images instead of initrd built into the kernel. In order to achieve the proper support of virtio-blk, this commit had to handle a few things: - Register an ioevent fd for each virtqueue. This important to be notified from the virtio driver that something has been written on the queue. - Fix the retrieval of 64bits BAR address. This is needed to provide the right address which need to be registered as the notification address from the virtio driver. - Fix the write_bar and read_bar functions. They were both assuming to be provided with an address, from which they were trying to find the associated offset. But the reality is that the offset is directly provided by the Bus layer. - Register a new virtio-blk device as a virtio-pci device from the vm.rs code. When the VM is started, it expects a block device to be created, using this block device as the VM rootfs. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>		2019-05-08 08:55:09 +02:00
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src	vmm: Use virtio-blk to support booting from disk image	2019-05-08 08:55:09 +02:00
Cargo.toml	vmm: Use virtio-blk to support booting from disk image	2019-05-08 08:55:09 +02:00