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For service and pre-launched VMs, the image loaders in ACRN are functioning the same way as an in-guest bootloader such as GRUB, which allows ACRN to load a guest image and start directly from there and therefore skipping the firmware initialization stage. To re-use image loader code as much as possible, the image loader logic is splitted into two stages, the loading stage and environmental preparation stage. Most part of the loading stage are common logic, and environmental preparation stage should be completely arch-specific. The best place for stage two loader logic is arch_vm_prepare_bsp, which prepares vcpu register states based on the loaded image (entry point, load address, etc.). This commit refactors only the rawimage loader. Other loaders are left for future improvement. Tracked-On: #8830 Signed-off-by: Yifan Liu <yifan1.liu@intel.com> Reviewed-by: Fei Li <fei1.li@intel.com> Acked-by: Wang Yu1 <yu1.wang@intel.com>
ACRN Hypervisor ############### The open source `Project ACRN`_ defines a device hypervisor reference stack and an architecture for running multiple software subsystems, managed securely, on a consolidated system by means of a virtual machine manager. It also defines a reference framework implementation for virtual device emulation, called the "ACRN Device Model". The ACRN Hypervisor is a Type 1 reference hypervisor stack, running directly on the bare-metal hardware, and is suitable for a variety of IoT and embedded device solutions. The ACRN hypervisor addresses the gap that currently exists between datacenter hypervisors, and hard partitioning hypervisors. The ACRN hypervisor architecture partitions the system into different functional domains, with carefully selected guest OS sharing optimizations for IoT and embedded devices. You can find out more about Project ACRN on the `Project ACRN documentation`_ website. .. _`Project ACRN`: https://projectacrn.org .. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor .. _`Project ACRN documentation`: https://projectacrn.github.io/