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1G PCI hole is added just after 4G address which is used as the PCI high MMIO address space. Guest high memory is mapped from 5G address for both EPT and device model user space address. Guest e820 table and API vm_map_gpa are updated accordingly. Tracked-On: #2577 Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com> Acked-by: Yu Wang <yu1.wang@intel.com>
ACRN Device Model ################# Introduction ============ The ACRN Device Model provides **device sharing** capabilities between the Service OS and Guest OSs. It is a component that is used in conjunction with the `ACRN Hypervisor`_ and this is installed within the Service OS. You can find out more about Project ACRN on the `Project ACRN documentation`_ website. .. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor .. _`Project ACRN documentation`: https://projectacrn.github.io/