公开(公告)号：US20240419478A1

公开(公告)日：2024-12-19

申请号：US18743104

申请日：2024-06-14

Applicant: MEDIATEK INC.

Inventor： Chih-Hsiang Hsiao ,  Ze-Yu Wang ,  Yi-De Wu ,  Yu-Chi Chu

IPC: G06F9/455 ,  G06F9/4401

Abstract: A virtual machine (VM) operating system (OS) device assignment system includes a processor, wherein the processor is configured to execute a host VM, a hypervisor, a device assigner, and a guest VM. The host VM is arranged to generate a driving signal for driving a booting of the guest VM. The hypervisor is arranged to generate a first trigger signal according to the driving signal, for triggering assignment of at least one device. The device assigner is arranged to modify a descriptor to generate a modified descriptor for assigning the at least one device among a plurality of devices to the guest VM, and install the modified descriptor into a protected memory, wherein an OS of the guest VM is configured according to the modified descriptor.