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Interrupt Remapping hardware in x86 can hold 64K entries with each entry of size 16 bytes. So 256 entries occupy 4K. Adding a configuration for developer to choose number of IR entries, in multiples of 256. ACRN does not boot on platforms that does not support Interrupt Remapping and Extended Interrupt Mode Tracked-On: #2426 Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com> Reviewed-by: Binbin Wu <binbin.wu@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/