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To support modification of OVMF NV storage, add an option "w" for --ovmf to write the changed OVMF NV data section back to the OVMF image from guest memory before deinit operations. This will enable persistent EFI variables. Only option "w" is supported, dm will exit if passing invalid option. It expects OVMF NV storage writeback with option "w" when power off or reboot the UOS, poweroff, cold and warm reboot in EFI shell and when dm recieves SIGINT and SIGHUP. Tracked-On: #3413 Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com> Reviewed-by：Eddie Dong <eddie.dong@intel.com> Acked-by: Yin Fengwei <fengwei.yin@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/