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7c940207d2
Now ACRN would traps MSI-X Table Structure access and does MSI-X interrupt remapping for pass-thru PCIe devices. ACRN does this trap by unmmapping the address ranges where the MSI-X Table Structure locates in granularity of 4K pages. So there may have other registers (non-MSI-X structures) in these trapped pages However, the guest may access these registers (non-MSI-X structures) in these trapped pages, which needs to be forwarded to the physical device. This patch forwards the access to real hardware for pass-thru PCIe devices. Tracked-On: #8255 Signed-off-by: Fei Li <fei1.li@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/