Processing device, processing system, processing method, and program

Abstract

To provide a processing device that can improve security. [Solution] The processing unit comprises a power supply that supplies power to the processing unit, a memory, an acquisition means for acquiring a BIOS (Basic Input / Output System) image from an external storage device, and an expansion means for expanding the BIOS image acquired by the acquisition means into the memory. When the power supply is stopped, the power supply to the memory is stopped and the BIOS image is erased.

Claims

1. A processing unit comprising a power button, a power control unit, a chipset, a first CPU (Central Processing Unit), a BIOS (Basic Input / Output System) load module, and a power supply, wherein the BIOS load module comprises firmware, a second CPU, and memory, In response to the operation of the power button, the power control unit controls the power supply to supply power to the BIOS load module. When power is supplied to the BIOS load module from the power supply, the second CPU initializes the memory by executing the Firmware, The BIOS image is acquired from an external storage device located outside the processing unit, and the acquired BIOS image is loaded into the memory. The BIOS load module instructs the power supply control unit to supply power to the chipset and the first CPU. The power supply, under the control of the power control unit in response to instructions, supplies power to the chipset and the first CPU. The aforementioned memory is If the aforementioned power supply fails, the power supply will be stopped and the BIOS image will be erased. Processing device.

2. The aforementioned second CPU is Each time the processing unit is started, an arbitrary BIOS image is obtained from the external storage device. The apparatus according to claim 1.

3. The system includes an SPI (Serial Peripheral Interface) that enables communication between the second CPU and the external storage device. The apparatus according to claim 1.

4. The apparatus according to claim 1, The aforementioned external storage device, A processing system equipped with the following features.

5. A processing unit comprising a power button, a power control unit, a chipset, a first CPU (Central Processing Unit), a BIOS (Basic Input / Output System) load module, and a power supply, wherein the BIOS load module is a processing method executed by a processing unit comprising firmware, a second CPU, and memory, In response to the operation of the power button, the power control unit controls the power supply to supply power to the BIOS load module, When power is supplied from the power supply to the BIOS load module, the second CPU initializes the memory by executing the Firmware, The aforementioned second CPU acquires a BIOS image from an external storage device located outside the processing unit, The second CPU expands the acquired BIOS image into the memory, The BIOS load module instructs the power supply control unit to supply power to the chipset and the first CPU, The power supply, under the control of the power control unit in response to instructions, supplies power to the chipset and the first CPU. When the aforementioned power supply is stopped, the memory will have its power supply cut off and will erase the BIOS image. A processing method that includes this.

6. A processing unit comprising a power button, a power control unit, a chipset, a first CPU (Central Processing Unit), a BIOS (Basic Input / Output System) load module, and a power supply, wherein the BIOS load module comprises a processing unit comprising firmware, a second CPU, and memory, In response to the operation of the power button, the power control unit controls the power supply to supply power to the BIOS load module, When power is supplied from the power supply to the BIOS load module, the second CPU initializes the memory by executing the Firmware, The aforementioned second CPU acquires a BIOS image from an external storage device located outside the processing unit, The second CPU expands the acquired BIOS image into the memory, When the aforementioned power supply is stopped, the memory will have its power supply cut off and will erase the BIOS image. A program that executes the command.

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