JP4364241B2 - Control program, recording medium, control method, and information processing apparatus - Google Patents

Description

  The present invention relates to a control program, a recording medium, a control method, and an information processing apparatus. In particular, the present invention relates to a control program, a recording medium, a control method, and an information processing apparatus that control termination processing of the information processing apparatus.

  In recent years, general-purpose information processing apparatuses capable of installing and executing various application programs, such as personal computers, have become widespread. In such an information processing apparatus, a plurality of application programs may adversely affect each other, and as a result, the operation of the information processing apparatus may stop. In this case, the user has forcibly turned off the power of the information processing apparatus by continuously pressing the power button or the like for several seconds.

If the information processing apparatus is turned off without normally ending the operating system of the information processing apparatus, there is a disadvantage that data being processed by the application program is lost. Therefore, a technique has been proposed in which the information processing apparatus is turned off after the operating system is normally terminated when the power button is pressed (see Patent Documents 1 to 4).
Japanese Patent Laid-Open No. 7-261888 Japanese Patent Laid-Open No. 11-327703 JP-A-2002-73220 Japanese Patent Laid-Open No. 2002-312076

  However, if the operating system itself is hung up or if there is a failure in the operation of the input device of the information processing device, the user will force the information processing device without waiting for the operating system to end. Can only be terminated. For example, the Windows (registered trademark) operating system provides the user with a function of terminating a process when a Ctrl key, an Alt key, and a Del key are pressed. However, even if the majority of the operating system is operating normally, if there is a failure in the keyboard operation, the user cannot perform this operation and can only terminate the information processing device forcibly. could not.

  Accordingly, an object of the present invention is to provide a control program, a recording medium, a control method, and an information processing apparatus that can solve the above-described problems.

  In order to solve the above-described problem, according to a first aspect of the present invention, there is provided a recording medium recording a control program for controlling a process for turning off the power of the information processing apparatus. A process that is managed and operated by the operating system of the information processing apparatus and an end process instruction unit that instructs an end process of the operating system, and an operating system after receiving the off instruction A device initialization unit that initializes input / output devices managed by the operating system and a power-off setting unit that turns off the information processing apparatus when the operating system is terminated. A recording medium on which a control program to be functioned is recorded and operated by the control program That the information processing apparatus, and a control method by the control program.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  According to the present invention, the information processing apparatus can be properly terminated.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 shows an example of a hardware configuration of the information processing apparatus 10. The information processing apparatus 10 is connected to the central processing unit peripheral unit including the central processing unit 1000, the RAM 1020, the graphic controller 1075, and the display unit 1080 that are connected to each other by the host controller 1082, and to the host controller 1082 by the I / O controller 1084. An input / output unit having a communication interface 1030, an input device 1032, an embedded controller 1035, a hard disk drive 1040, and a CD-ROM drive 1060, a BIOS 1010 connected to the I / O controller 1084, a flexible disk drive 1050, And a legacy input / output unit having an input / output chip 1070.

  The host controller 1082 connects the RAM 1020 to the central processing unit 1000 and the graphic controller 1075 that access the RAM 1020 at a high transfer rate. The central processing unit 1000 operates based on programs stored in the BIOS 1010 and the RAM 1020 and controls each unit. The graphic controller 1075 acquires image data generated by the central processing unit 1000 or the like on a frame buffer provided in the RAM 1020 and displays it on the display device 1080. Instead, the graphic controller 1075 may include a frame buffer for storing image data generated by the central processing unit 1000 or the like.

  The I / O controller 1084 connects the host controller 1082 to the communication interface 1030, the input device 1032, the embedded controller 1035, the hard disk drive 1040, and the CD-ROM drive 1060, which are relatively high-speed input / output devices. The communication interface 1030 communicates with an external device via a network.

  The embedded controller 1035 includes a power switch 1038, an SCI interrupt request instruction signal line for sending an SCI interrupt instruction to the I / O controller 1084, and an SMI interrupt request for sending an SMI interrupt instruction to the I / O controller 1084. Connect to the instruction signal line. The embedded controller 1035 transmits an instruction to the central processing unit 1000 or the like via the I / O controller 1084 when the power switch 1038 is pressed.

  Here, the SCI interrupt instruction is an instruction for requesting the central processing unit 1000 to perform an SCI interrupt process that is an interrupt process for the operating system. SCI is an abbreviation for System Control Interrupt. The SMI interrupt instruction is an instruction for requesting the central processing unit 1000 to perform an SMI interrupt process that is an interrupt process for the BIOS program. SMI is an abbreviation for SystemManagement Interrupt.

  The input device 1032 is, for example, a mouse or a keyboard, and requests an interrupt process from the central processing unit 1000 in response to an operation from the user. The hard disk drive 1040 stores programs and data used by the information processing apparatus 10. The CD-ROM drive 1060 reads a program or data from the CD-ROM 1095 and provides it to the input / output chip 1070 via the RAM 1020. The I / O controller 1084 is connected to the BIOS 1010 and relatively low-speed input / output devices such as the flexible disk drive 1050 and the input / output chip 1070. The BIOS 1010 stores a boot program executed by the central processing unit 1000 when the information processing apparatus 10 is started up, a program depending on the hardware of the information processing apparatus 10, and the like.

  The flexible disk drive 1050 reads a program or data from the flexible disk 1090 and provides it to the input / output chip 1070 via the RAM 1020. The input / output chip 1070 connects various input / output devices via a flexible disk 1090 and, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like.

A program provided to the information processing apparatus 10 is stored in a recording medium such as the flexible disk 1090, the CD-ROM 1095, or an IC card and provided by a user. The program is sent via the input / output chip 1070 and / or the I / O controller 1084.
It is read from the recording medium, installed in the information processing apparatus 10 and executed. For example, the control program according to the present invention may be recorded in a recording area used by the BIOS 1010, the hard disk drive 1040, or the embedded controller 1035, each of which is an example of the recording medium according to the present invention.

  The control program installed and executed in the information processing apparatus 10 includes an end determination module, a power-off setting module, an end processing instruction module, an interrupt setting module, a device initialization module, an end state setting module, An exit status output module and an operating system are included. The operation that each module causes the information processing apparatus 10 to perform is the same as the operation of the corresponding member in the information processing apparatus 10 described with reference to FIGS. In the following description, the operating system is abbreviated as OS.

  The program or module shown above may be stored in an external storage medium. As the storage medium, in addition to the flexible disk 1090 and the CD-ROM 1095, an optical recording medium such as a DVD or PD, a magneto-optical recording medium such as an MD, a tape medium, a semiconductor memory such as an IC card, or the like can be used. Further, a storage device such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium, and the program may be provided to the information processing apparatus 10 via the network.

  FIG. 2 shows an example of a block diagram of the embedded controller 1035. The embedded controller 1035 functions as the end determination unit 200 and the power-off setting unit 210. When receiving a forced termination instruction for forcibly terminating the OS from the user, the termination determination unit 200 transmits an SMI interrupt instruction to the I / O controller 1084, whereby the I / O controller 1084 sends a central processing unit. Send an SMI interrupt request to 1000. As a result, the BIOS program starts operating in the central processing unit 1000. Then, the end determination unit 200 notifies the power-off setting unit 210 that the operation of the BIOS program is started.

  On the other hand, when receiving a normal termination instruction for normally terminating the OS from the user, the termination determination unit 200 transmits an SCI interrupt instruction to the I / O controller 1084, thereby causing the I / O controller 1084 to perform central processing. Causes the processing apparatus 1000 to transmit an SCI interrupt request. As a result, the operating system in the central processing unit 1000 starts normal termination processing.

  Specifically, when the user turns off the power switch 1038 for a predetermined reference time or more, for example, when the user keeps pressing the button of the power switch 1038 for the reference time or more, It is determined that a forced termination instruction has been received from the user. On the other hand, when the off state is less than the reference time, for example, when the user presses the button of the power switch 1038 and releases it immediately, the end determination unit 200 determines that a normal end instruction has been received from the user.

  Preferably, end determination unit 200 does not accept a normal end instruction while receiving a forced end instruction. Specifically, the termination determination unit 200 does not transmit an SCI interrupt request when receiving a normal termination instruction after the forced termination instruction is received and before the information processing apparatus 10 is terminated. This can prevent different OS termination processes from being executed in parallel.

  When the power-off setting unit 210 receives a notification that the operation of the BIOS program is started from the end determination unit 200, the power-off setting unit 210 periodically receives a notification that the BIOS program is operating from the device initialization unit 320. . Then, the power-off setting unit 210 instructs the I / O controller 1084 when the next notification is not received within the reference waiting time after the last notification that the BIOS program is operating. Then, the information processing apparatus 10 is turned off.

  FIG. 3 shows an example of a block diagram of the central processing unit 1000. The central processing unit 1000 uses the BIOS program and the termination program to complete the termination processing instruction unit 300, the interrupt setting unit 310, the device initialization unit 320, the termination state setting unit 330, the termination processing unit 335, and the termination status output. It functions as the unit 340. A set of a program for operating the BIOS program, the termination program, and the embedded controller 1035 is an example of a control program according to the present invention. Here, the BIOS program is a program that is not subject to task management by the OS, and is, for example, a program that can operate even when a failure has occurred in the OS.

  When the information processing apparatus 10 receives a forced termination instruction from a user, the termination processing instruction unit 300 determines that an off instruction has been received from the user and instructs the OS and process termination processing. For example, the termination processing instruction unit 300 operates a termination program that terminates the process as a process managed by the OS, thereby terminating the OS process, terminating the OS process, and then terminating the OS. . More specifically, the end processing instruction unit 300 may start the operation of the end program on the OS by causing the I / O controller 1084 to request the central processing unit 1000 for an SCI interrupt. Here, the termination program may be a program that is activated in response to an instruction from the BIOS program, or may be a program that is resident in advance on the OS and starts an operation in accordance with an instruction from the BIOS program.

  When the information processing apparatus 10 receives a forced termination instruction from the user, the interrupt setting unit 310 sets the I / O controller 1084 to periodically interrupt the BIOS program with an interval timer. The device initialization unit 320 operates by periodically receiving an interrupt request for the BIOS program from the I / O controller 1084. Then, the device initialization unit 320 periodically determines whether or not the termination program is operating normally by checking information written in the nonvolatile recording medium by the termination program.

  When the termination program is operating normally, the device initialization unit 320 is an input / output device managed by the OS, eg, an input / output device managed by the OS to release the input / output waiting state of the process that cannot be terminated due to the input / output waiting of the input / output device The communication interface 1030 or the input device 1032 is initialized. Then, the device initialization unit 320 periodically notifies the power-off setting unit 210 that the BIOS program is operating normally. As a notification method, the device initialization unit 320 may use an interface that sends an instruction from the central processing unit 1000 to the input / output device.

  On the other hand, when the device initialization unit 320 determines that a failure has occurred in the operation of the termination program, the termination state setting unit 330 sets the termination state so that the input / output device of the information processing apparatus 10 can be turned off. To do. For example, the end state setting unit 330 may perform a process of retracting the magnetic head of the hard disk drive 1040 from the magnetic surface. In this case, preferably, the end state setting unit 330 stores the fact that the input / output device is set to the end state in a non-volatile recording medium provided in the I / O controller 1084 or the like.

  The OS operates a termination program and other processes as targets for task management by the OS. Then, when the OS receives an instruction to terminate the OS from the I / O controller 1084 by an SCI interrupt request, the OS terminates the OS using a termination processing function provided in advance in the OS.

  The termination program causes the central processing unit 1000 to function as the termination processing unit 335 and the termination status output unit 340. Upon receiving an instruction from the end processing instruction unit 300, the end processing unit 335 periodically transmits an end instruction to end the process to the process operating on the OS. In addition, the termination processing unit 335 periodically notifies the device initialization unit 320 that the termination program is operating normally.

  Further, the end processing unit 335 periodically stores information indicating that the end program is operating normally in a nonvolatile recording medium provided in the I / O controller 1084, so that the device initialization unit 320. May be notified. Further, the termination processing unit 335 may display a screen for inquiring of the user whether or not to terminate the OS. When a response indicating that the process is not terminated is acquired, the OS is normally operated. Accordingly, the user can obtain an opportunity to save important data by operating the information processing apparatus 10 before the OS is terminated. Furthermore, the termination program may store the fact in the nonvolatile recording medium when all processes can be terminated normally.

  When the information processing apparatus 10 is activated, the end status output unit 340 outputs the end status when the power of the information processing apparatus 10 was previously turned off to the graphic controller 1075 and displays it on the display device 1080. For example, when the information processing apparatus 10 is activated, the end status output unit 340 first reads information from the end state setting unit 330 or a non-volatile recording medium stored by the end program.

  Then, the termination status output unit 340 determines whether the power is turned off without terminating the OS based on the read information, or whether the power is turned off after the OS is terminated. Display as status. Thereby, the user can appropriately grasp the situation when the power was turned off last time, and can use it for the subsequent recovery process. Instead, when turning off the power of the information processing apparatus 10, the BIOS program may emit a beep sound indicating the termination status.

  FIG. 4 shows an example of the operation flow of the embedded controller 1035. The end determination unit 200 determines whether or not the button of the power switch 1038 has been pressed by the user for a reference time or longer (S400). When the time pressed by the user is less than the reference time (S400: NO), the end determination unit 200 transmits an end instruction for performing a normal end process to the operating system (S405).

  On the other hand, when the button is kept pressed for the reference time or longer (S400: YES), the power-off setting unit 210 adjusts the detection interval for detecting that the BIOS program is operating (S410). Then, the end determination unit 200 transmits an SMI interrupt request from the I / O controller 1084 to the central processing unit 1000 by transmitting an SMI interrupt instruction to the I / O controller 1084 (S415).

Subsequently, the embedded controller 1035 repeats the following process according to the detection interval adjusted in S410.
First, the power-off setting unit 210 determines whether a notification has been received from the BIOS program since the previous iteration (S420). In other words, the power-off setting unit 210 can determine whether or not a notification is received from the BIOS program within the reference time. When the notification is not received from the BIOS program within the reference time (S420: NO), the power-off setting unit 210 moves the process to S425.

  On the other hand, when the notification is received from the BIOS program within the reference time (S420: YES), the embedded controller 1035 performs other processing for a predetermined time (S430). Subsequently, the power-off setting unit 210 determines whether or not the information processing apparatus 10 is powered on (S440). When the information processing apparatus 10 is powered on (S440: YES), the power-off setting unit 210 determines whether or not the reference standby time has elapsed since the SMI interrupt instruction was transmitted (S450). If the reference standby time has not elapsed (S450: NO), the embedded controller 1035 returns the process to S420.

  On the other hand, when the notification is not received from the BIOS program within the reference time (S420: NO), or when the reference standby time has elapsed (S450: YES), the power-off setting unit 210 sends the I / O controller 1084 to the I / O controller 1084. The information processing apparatus 10 is turned off (S425, S460). When the information processing apparatus 10 is turned off, or when the information processing apparatus 10 is already turned off (S440: NO), the embedded controller 1035 ends the process.

  As a result, the power-off setting unit 210 causes the information processing apparatus 10 to operate when the BIOS program operates normally and terminates the OS, or when the processing of the BIOS program is not completed within the reference waiting time due to the occurrence of a failure. The power can be turned off.

FIG. 5 shows an example of the operation flow of the BIOS program that runs on the central processing unit 1000. When the end processing instruction unit 300 receives an SMI interrupt request from the I / O controller 1084 based on an instruction from the end determination unit 200, the end processing instruction unit 300 causes the I / O controller 1084 to transmit an SCI interrupt request to the central processing unit 1000. As a result, the operation of the termination program on the OS is started (S500). Then, the interrupt setting unit 310 sets the I / O controller 1084 to periodically interrupt the BIOS program using the interval timer (S505). Preferably, the interrupt setting unit 310 sets so as to interrupt at a sufficiently low frequency that does not affect the system performance of the information processing apparatus 10.
The BIOS program periodically receives the SMI interrupt request from the I / O controller 1084, thereby repeatedly performing the following processing.

  Upon receiving the SMI interrupt request, the device initialization unit 320 notifies the power-off setting unit 210 of the embedded controller 1035 that the BIOS program is operating normally (S510). Next, the device initialization unit 320 initializes an input / output device managed by the OS, such as the communication interface 1030 or the input device 1032, in order to cancel the input / output wait state of the process that cannot be terminated due to the input / output device waiting. (S520). More specifically, the device initialization unit 320 may initialize an input / output device when a certain input / output device requests the central processing unit 1000 to perform an interrupt process. Alternatively, the device initialization unit 320 may initialize all input / output devices that request the central processing unit 1000 for interrupt processing. As an example, the device initialization unit 320 may perform a process of clearing a key input buffer such as a keyboard in order to initialize a keyboard or a mouse.

  Then, the device initialization unit 320 determines whether or not the termination program is operating normally by checking information written in the nonvolatile recording medium by the termination program (S530). When the end program is operating normally (S530: YES), the BIOS program returns the process to S510. On the other hand, when the termination program is not operating normally (S530: NO), the termination state setting unit 330 sets the termination state in which the power of the input / output device of the information processing apparatus 10 may be turned off (S540). For example, the end state setting unit 330 may perform a process of retracting the magnetic head of the hard disk drive 1040 from the magnetic surface.

  Here, the case where the termination program is not operating normally includes the case where a failure occurs in the operation of the termination program and the case where the processing of the termination program is completed normally. Thus, the information processing apparatus 10 can be terminated as safely as possible not only when the processing of the termination program is normally completed but also when a failure occurs in the operation of the termination program.

  In this case, the BIOS program stops the notification process for the embedded controller 1035. As a result, the embedded controller 1035 turns off the information processing apparatus 10. That is, the power-off setting unit 210 turns off the power of the information processing apparatus 10 when the input / output device is set to the end state by the end state setting unit 330. This can prevent damage to the input / output device, such as damage to the magnetic surface of the hard disk drive.

FIG. 6 shows an example of the operation flow of an end program that runs on the central processing unit 1000. When the termination processing unit 335 receives an SCI interrupt request from the I / O controller 1084 based on an instruction from the termination processing instruction unit 300, the termination processing unit 335 displays a screen asking the user whether or not to terminate the OS (S610). At this time, preferably, the termination processing unit 335 notifies the user that the OS forced termination processing has started by displaying a message such as “start emergency termination processing” to the user. Thereby, the user can know that it is not necessary to keep pressing the power switch 1038. More preferably, the termination processing unit 335 notifies the user that the OS cannot be continuously used normally when the user instructs the OS not to be terminated. Further, the termination processing unit 335 may notify that the OS should be restarted after the OS and the OS are restarted after manually terminating the process and the OS.
Then, the end program repeats the following processing.

  First, the termination processing unit 335 notifies the BIOS program that the termination program is operating normally (S620). Then, the termination processing unit 335 determines whether or not a predetermined time has elapsed since the user's inquiry in S610 has timed out, that is, whether or not to terminate the OS in S610. S630). If the time-out has occurred (S630: YES), the end processing unit 335 moves the process to S655.

  On the other hand, when the time-out has not occurred (S630: NO), the termination processing unit 335 determines whether or not an operation has been received from the user in response to the inquiry (S640). If no operation has been received (S640: NO), the end processing unit 335 returns the process to S620. When the operation is received (S640: YES), the end processing unit 335 determines whether the operation is an instruction to end the OS (S650).

  If it is not an instruction to terminate the OS (S650: NO), the termination processing unit 335 periodically notifies the BIOS program that the termination program is operating normally (S652). As a result, if the input / output device is initialized by the device initialization unit 320 and the OS has not finished yet, the termination processing unit 335 prompts the user to use the OS. Can be continued. Thus, although the user cannot use the OS in a normal state, the user can terminate the OS manually after properly saving the data of the application program as necessary.

  When a time-out occurs (S630: YES) or when an instruction to end the OS is received (S650: YES), the end processing unit 335 transmits an end instruction to the OS (S655). Then, the end processing unit 335 notifies the BIOS program that the end program is operating normally (S660). Then, the end processing unit 335 acquires a list of processes operating on the OS from the OS, and transmits an end instruction to these processes (S670). The end processing unit 335 repeats the processes of S660 and S670.

  Note that the processing of this figure may be realized as one function of the operating system instead of the termination program. That is, the termination processing instruction unit 300 may terminate the OS after requesting the OS to terminate the process. In this case, although the termination process may not be performed properly depending on the type of failure that occurs in the operating system, it is not necessary to make the termination program resident in the operating system and the efficiency is high.

  As described above, according to the present exemplary embodiment, the information processing apparatus 10 causes the OS program to transmit an end instruction to end the process to the OS process and waits for input / output of a process that cannot be ended due to input / output waiting of the input / output device. Initialize the I / O device to release the state. As a result, the OS that has hung up can be restored to the normal state and terminated normally.

  Further, the information processing apparatus 10 can switch processing when the power is turned off, depending on how the power switch is operated. Thus, even when a failure that makes it impossible to operate with a keyboard or the like occurs, the user can select a process for turning off the power. Further, the information processing apparatus 10 saves the end status when the power is turned off and displays it at the next startup. Thereby, it is possible to easily pursue the cause of the failure.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

FIG. 1 shows an example of a hardware configuration of the information processing apparatus 10. FIG. 2 shows an example of a block diagram of the embedded controller 1035. FIG. 3 shows an example of a block diagram of the central processing unit 1000. FIG. 4 shows an example of the operation flow of the embedded controller 1035. FIG. 5 shows an example of the operation flow of the BIOS program that runs on the central processing unit 1000. FIG. 6 shows an example of the operation flow of an end program that runs on the central processing unit 1000.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Information processing apparatus 200 End judgment part 210 Power-off setting part 300 End process instruction part 310 Interrupt setting part 320 Device initialization part 330 End state setting part 335 End process part 340 End status output part 1000 Central processing unit 1032 Input device 1035 Embedded controller 1038 Power switch 1084 I / O controller

Claims (13)

A recording medium recording a control program for controlling a process of turning off the power of the information processing apparatus,
The information processing apparatus;
A process that is managed and operated by the operating system of the information processing apparatus and an end process instruction unit that instructs an end process of the operating system when receiving an off instruction to turn off the power of the information processing apparatus;
A device initialization unit that initializes an input / output device managed by the operating system from when the off instruction is received until the operating system is terminated;
When the operating system is terminated, a control program that functions as a power-off setting unit that turns off the power of the information processing apparatus is recorded ,
The control program includes a BIOS program that is not subject to task management by the operating system, and a termination program that is subject to task management by the operating system,
The information processing apparatus functions as the termination processing instruction unit and the device initialization unit by the BIOS program,
The termination processing instruction unit terminates the operating system process by causing the termination program to terminate the process to operate as a process managed by the operating system.
The device initialization unit is a recording medium that initializes the input / output device while the termination program is operating normally . The device initialization unit operates by periodically receiving an interrupt request for the BIOS program from an I / O controller provided in the information processing apparatus, and whether or not the termination program is operating normally Judge regularly
The recording medium according to claim 1 . Control that causes the information processing apparatus to further function as an interrupt setting unit that sets the I / O controller to periodically interrupt the BIOS program with an interval timer when the off instruction is received from a user The recording medium according to claim 1, wherein the program is recorded. When the control program determines that the information processing apparatus has failed in the operation of the termination program, the control program sets an end state setting unit in a state where the power of the input / output device of the information processing apparatus may be turned off. Further function as
The power-off setting unit turns off the information processing apparatus when the input / output device is set to an end state by the end state setting unit.
The recording medium according to claim 1 . The control program causes the information processing apparatus to
When a failure occurs in the operation of the termination program, the termination status indicating that the power is turned off without terminating the operating system is output, and when the operating system is terminated by the termination processing instruction unit, Further function as an exit status output unit that outputs an exit status indicating that the power is turned off after exiting the operating system.
The recording medium according to claim 1 . The termination status output unit outputs a termination status when the information processing device was previously turned off when the information processing device is started.
The recording medium according to claim 5 . The control program causes the information processing apparatus to
When a normal termination instruction for normally terminating the operating system is received from a user, the operating system is terminated by forcibly terminating the operating system by transmitting an interrupt request for the operating system to a central processing unit. when receiving the forced end instruction from the user, according to claim wherein by sending an interrupt request to the central processing unit for the BIOS program, which further functions as a termination determination unit that transmits the off instruction to the termination process instructing section The recording medium according to 1 . The information processing apparatus is changed by the termination program.
When the input / output device is initialized by the device initialization unit and the operating system is not terminated, the termination program functions as a termination processing unit that queries the user whether or not to terminate the operating system. Make
The recording medium according to claim 1 . A control program for controlling processing to turn off the power of the information processing apparatus,
The information processing apparatus;
A process that is managed and operated by the operating system of the information processing apparatus and an end process instruction unit that instructs an end process of the operating system when receiving an off instruction to turn off the power of the information processing apparatus;
A device initialization unit that initializes an input / output device managed by the operating system from when the off instruction is received until the operating system is terminated;
When the operating system is terminated, the information processing apparatus functions as a power-off setting unit that turns off the power ,
A BIOS program that is not subject to task management by the operating system, and a termination program that is subject to task management by the operating system;
Causing the information processing apparatus to function as the termination processing instruction unit and the device initialization unit by the BIOS program;
In the termination processing instruction unit, the termination program that terminates the process is operated as a process managed by the operating system as a task, thereby terminating the operating system process.
A control program for initializing the input / output device in the device initialization unit while the termination program is operating normally . An information processing apparatus that controls a process of turning off the power,
A process that is managed and operated by the operating system of the information processing apparatus and an end process instruction unit that instructs an end process of the operating system when receiving an off instruction to turn off the power of the information processing apparatus;
A device initialization unit that initializes an input / output device managed by the operating system from when the off instruction is received until the operating system is terminated;
A power-off setting unit that turns off the power of the information processing apparatus when the operating system is terminated ,
The BIOS program that is not subject to task management by the operating system functions as the end processing instruction unit and the device initialization unit,
In the termination processing instruction unit, a termination program that is a target of task management by the operating system that terminates the process is operated as a process managed by the operating system, thereby terminating the operating system process,
An information processing apparatus that initializes the input / output device in the device initialization unit while the termination program is operating normally . The information processing apparatus functions as the end processing instruction unit and the device initialization unit by a BIOS program that is not subject to task management by the operating system,
A signal line for transmitting an SMI interrupt instruction for requesting the SMI interrupt processing for the BIOS program from the embedded controller of the information processing apparatus to the I / O controller;
A signal line for transmitting an SCI interrupt instruction from the embedded controller to the I / O controller for requesting the central processing unit to perform an SCI interrupt process for the operating system;
When a normal termination instruction for normally terminating the operating system is received from a user, the operating system is terminated by sending the SCI interrupt instruction to the I / O controller. An end determination unit that transmits the off instruction to the end processing instruction unit by transmitting the SMI interrupt instruction to the I / O controller when a forced end instruction is received from the user; The information processing apparatus according to claim 10, further comprising: The termination determination unit determines that the user has received the forced termination instruction when the user turns off the power switch of the information processing apparatus for a predetermined reference time or more, and the off state is less than the reference time. In some cases, it is determined that the normal termination instruction has been received.
The information processing apparatus according to claim 11 . A control method for controlling a process of turning off an information processing apparatus,
A process that is managed and operated by the operating system of the information processing apparatus and an end process instruction step that instructs an end process of the operating system when receiving an off instruction to turn off the power of the information processing apparatus;
A device initialization step of initializing an input / output device managed by the operating system between the receipt of the off instruction and the termination of the operating system;
A power-off setting step of turning off the information processing device when the operating system is terminated ,
The information processing apparatus is caused to function as the end processing instruction step and the device initialization step by a BIOS program that is not subject to task management by the operating system,
Ending the process of the operating system by operating a termination program that is a target of task management by the operating system that terminates the process in the termination processing instruction step as a process managed by the operating system.
A control method for initializing the input / output device in the device initialization stage while the termination program is operating normally .

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