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4a22801dd1
According to SDM, bit N (physical address width) to bit 63 should be masked when calculate host page frame number. Currently, hypervisor doesn't set any of these bits, so gpa2hpa can work as expectd. However, any of these bit set, gpa2hpa return wrong value. Hypervisor never sets bit N to bit 51 (reserved bits), for simplicity, just mask bit 52 to bit 63. Tracked-On: #3352 Signed-off-by: Binbin Wu <binbin.wu@intel.com> Reviewed-by: Eddie Dong <eddie.dong@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/