Display method for use in multi-operating systems and electronic device

An electronic device, comprising:

• a memory, and at least one processor;
• wherein the memory is communicably connected to the at least one processor via a communication bus;
• the at least one processor is configured to perform instructions stored in the memory;
• and the memory stores instructions for performing the steps of:
• in a host operating system, allocating a native window to each guest operating system;
• in the guest operating system, requesting a physical continuous memory (PCM) sub-region corresponding to a window from the host operating system when the window is newly created;
• in the host operating system, allocating the PCM sub-region to the guest operating system;
• in the guest operating system, storing rendered data to the PCM sub-region when the newly created window is rendered;
• and
• in the host operating system, rendering the native window corresponding to the guest operating system based on the data in the PCM sub-region when a display request from the guest operating system is monitored, and
• in the host operating system, displaying the native window.

A computer program product for use in combination with an electronic device, comprising a computer program embedded into a computer-readable storage medium;

• wherein the computer program comprises instructions for causing the electronic device to perform the steps of:
• in a host operating system, allocating a native window to each guest operating system;
• in the guest operating system, requesting a physical continuous memory (PCM) sub-region corresponding to a window from the host operating system when the window is newly created;
• in the host operating system, allocating the PCM sub-region to the guest operating system;
• in the guest operating system, storing rendered data to the PCM sub-region when the newly created window is rendered;
• and
• in the host operating system, rendering the native window corresponding to the guest operating system based on the data in the PCM sub-region when a display request from the guest operating system is monitored, and
• in the host operating system, displaying the native window.