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This patch moves the ssram area in ve820 tab, and reunites the hpa1_low_part1/2 areas. The ve820 building code is refined. before: |<---low_1M--->| |<---hpa1_low_part1--->| |<---SSRAM--->| |<---hpa1_low_part2--->| |<---GPU_OpRegion--->| |<---ACPI DATA--->| |<---ACPI NVS--->| ---2G--- after: |<---low_1M--->| |<---hpa_low--->| |<---SSRAM--->| |<---GPU_OpRegion--->| |<---ACPI DATA--->| |<---ACPI NVS--->| ---2G--- The SSRAM area's address is described in the ACPI's RTCT/PTCT table. To simplify the SSRAM implementation, SSRAM area was identical mapped to GPA, and resulted in the divition of hpa_low. Then the ve820 building logic became too complicated. Now we managed to edit the guest's RTCT/PTCT table by offline tools in the former patch, so we can move the guest's SSRAM area, and reunite the hpa_low areas again. After doing this, this patch rewrites the ve820 building code in a much simpler way. Tracked-On: #6674 Signed-off-by: Zhou, Wu <wu.zhou@intel.com> Reviewed-by: Eddie Dong <eddie.dong@intel.com> Reviewed-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/