DMA compliance by remapping in virtualization

A computer program product comprising:

• at least one computer-readable medium having instructions encoded therein, the instructions when executed by at least one processor cause said at least one processor to
• operate by steps comprising the acts of:
• loading a privileged host program including a hypervisor into an executable memory at a hypervisor memory datum byte physical address at or above a predetermined address;
• loading into the executable memory, under a control of the hypervisor, a guest operating system program;
• and
• allocating substantially all bytes of the executable memory having physical addresses below the predetermined address to the guest operating system program.

An electronic device comprising:

• at least one controller;
• and
• at least one non-volatile memory having instructions encoded therein, the instructions when executed by the controller cause said controller to operate by steps comprising the acts of:
• loading a privileged host program including a hypervisor into an executable memory at a hypervisor memory datum byte physical address at or above a predetermined address;
• loading into the executable memory, under a control of the hypervisor, a guest operating system program;
• allocating substantially all bytes of the executable memory having physical addresses below the predetermined address to the guest operating system program;
• and
• performing one or more DMA (Direct Memory Access) transfers directed by the guest operating system program.