WO2005071531A1

WO2005071531A1 - A method and device for start up computer

Info

Publication number: WO2005071531A1
Application number: PCT/CN2004/000460
Authority: WO
Inventors: Junhong Jiang; Xiaolong Li
Original assignee: Lenovo (Beijing) Limited
Priority date: 2004-01-15
Filing date: 2004-05-09
Publication date: 2005-08-04
Also published as: CN1641573A; CN100339828C

Abstract

The present invention relates to a method and device for rapidly starting up computer, the key of the method is: If the alternating current (AC) shut down in the computer, rapidly starting up the computer is achieved by the following steps of: Step A: The computer records the shut-down information, and makes the operating system of the computer into stage S4/G3; Step B: judge whether the AC has been resumed, if not, the computer keeps in stage S4/G3, and returns back to step B; if yes, the operating system starts up automatically, and the operating system turns from stage S4/G3 into stage S3 according to the shut-down information stored in Step A in starting up the computer, then the operating system keeps in stage S3 until triggering S3 the trigger event to rapidly start up the computer. The device provided in the present invention can detect the shut-down of AC and store the shut-down information, and keep the computer in stage S3 according to the shut-down information to meet the need of rapidly starting up the computer.

Description

Method and device for realizing fast startup

Technical field

The invention belongs to the field of computer application technology, and particularly relates to a method and a device for realizing fast startup of a computer. Background of the invention

As the computer's operating system becomes larger and larger, the system's startup time is getting longer and longer. Although the rapid development of computer technology has made the computer's processing speed and calculation speed faster and faster, the computer processing speed and calculation speed have shortened the system startup. Time does not play a significant role, so the startup time of the computer increases with the increasing size of the system.

In the present invention, the following computer states are involved:

SO state, in which the computer is in a normal power-on state;

S3 state. In this state, the computer is in the hibernation state suspended to the memory. The computer saves the various field information of the computer before entering the hibernation state in the memory. The memory keeps working under the +5 volt auxiliary voltage 5VSB power supply, and Other hardware is turned off. When the S3 sleep wake event is triggered, the computer reads and executes the saved field information from the memory, so that the computer returns to the state before entering S3 sleep;

S4 state. In this state, the computer is in the hibernation state of the hard disk. The computer saves all field information of the computer before entering S4 hibernation in the hard disk, and each hardware in the computer is turned off. When the S4 wake-up event is triggered by the power switch, the computer writes all the scene information stored in the hard disk before entering the S4 state to the original position through the operating system or the basic input and output system (BIOS), so that the hibernation state is consistent;

S5 state, in which the computer is in a normal shutdown state and external AC power AC is still powering the computer;

G3 state. In this state, the external AC power of the computer is powered off, and only the battery on the computer's main board is powered.

In order to shorten the system startup time to provide users with a fast startup experience, in the prior art, the following two methods are used to achieve fast startup:

Method 1: Set the default operation of the "Shutdown" button of the computer power management system to "Standby", so that when the user shuts down, the system will enter standby state S3, the computer suspends to memory, and when the system enters this S3 state, it will All information before the computer enters S3 hibernation is stored in the memory, where all the information stored in the memory includes central processing unit (CPU) information, operating system information, application information, various hardware information, and the value of related registers, etc. Computer field information; In this S3 state, all hardware in the computer is turned off, and only the memory is continuously refreshed under the +5 volt auxiliary voltage 5 VSB power supply to ensure the integrity of the content stored in the memory unit. Among them, when the computer is in the power-on SO state and the normal power-off S5 state, the computer power source is connected to AC power, and 5VSB exists as an auxiliary voltage.

When the computer is triggered by an S3 sleep wake event such as a keyboard wake-up or a mouse wake-up, the computer returns each scene information stored in the memory to the position where the information corresponds to before the S3 sleep state, and executes the information at the corresponding positions , So that the computer returns to the state before S3 sleep after the S3 sleep wake event is triggered.

Although this quick boot method can greatly shorten the boot time, this quick boot method cannot solve the system power failure, that is, the fast boot problem after the 220V alternating current (AC) that is usually provided to the computer is powered off. The main reasons are:

When the system AC is powered off, the corresponding 5VSB auxiliary voltage does not exist. Therefore, the computer cannot maintain the S3 state, and the system will enter the G3 state. In this G3 state, except for the battery power on the computer motherboard, external power is supplied. Shut down, after AC is restored, the system It will enter the S5 state, and then complete the boot process from the S5 state. The S5 state is the state where the computer is normally shut down. This state cannot save the system state information before entering the S5 state. The information in the memory will be lost when entering this state, so that in the case of AC power failure, when the AC recovers and restarts, the normal boot process that lasts for nearly 40 seconds will still be used, so that fast boot cannot be achieved.

Method 2: Under a certain computer configuration, the computer's BIOS reduces the initialization of some components in the computer, thereby shortening the system startup time. With this solution, although it can achieve fast boot and system AC power failure recovery Fast startup, but during the startup process, some of the computer's initialization actions will be reduced, and these initialization actions will inevitably be performed after the computer enters the system, which will inevitably reduce the system's operating speed, which is not conducive to the specific application of the user; In addition, Although this method can achieve fast startup, the effect is not obvious. Compared with the first fast startup method, a delay of 25 to 35 seconds is still required. Summary of the invention

In view of this, the main object of the present invention is to provide a method for achieving fast startup, which can still achieve fast startup after AC power is restored.

In order to achieve the foregoing objective, the present invention provides a method for achieving quick startup. If a computer has a system AC power loss AC, the method includes:

Step A: The computer records the power-down information and causes the computer's operating system to enter the S4 / G3 state;

Step B: Determine whether the AC is restored. If not, the computer remains in the S4 / G3 state and return to step B until the AC is restored. If so, the operating system starts automatically and the operating system according to the saved in step A during the startup process. Power-down information enters the S3 state from the S4 / G3 state. Then, the computer operating system maintains the S3 state until the S3 trigger event is triggered and the computer enters the operating system. Wherein, the computer recording the power-down information in step A includes:

The computer mainboard receives a power-down notification signal, and determines from the power-down notification signal that a system AC power failure is currently occurring on the computer. The computer mainboard records a value on a battery-powered register of the computer mainboard as power-down information.

When the computer motherboard has a backup battery for power supply, the power-down notification signal is a high-level ON-BATT signal sent by the backup battery to the motherboard, and the motherboard determines that a system AC power failure has occurred according to the high-level status of the signal. Then, the step of recording power-down information on a register is performed.

Wherein, the power-off information recorded by the computer in step A includes:

The idle general-purpose input and output GPIO bits on the south bridge of the computer motherboard detect the received ON-BATT signal. When the signal is detected to be at a high level, the value is recorded in a register powered by the computer motherboard on the south bridge of the motherboard. To indicate that the computer has lost power.

Wherein, when the computer motherboard is not powered by a backup battery, the power-down notification signal is 3.3 VSB, and the computer motherboard determines that a system AC power failure has occurred based on the presence of the 3.3 VSB, and then executes the step of recording power-down information on a register.

Wherein, in step B, the operating system entering the S3 state from the S4 / G3 state according to the power-down information saved in step A during the startup process includes:

Step B1: The computer's basic input-output system BIOS reads a value recorded by the register from the register powered by the battery of the computer motherboard, and judges based on the value that the computer has a system AC power failure;

Step B2: The BIOS continuously sends an instruction to enter the S3 state to the operating system until the operating system receives and responds to the instruction, and the operating system enters the S3 state according to the received instruction to enter the S3 state.

Wherein, when there is a backup battery power supply on the computer motherboard, in step A, the computer's operating system enters the S4 state; when there is no backup battery power supply on the computer motherboard, step A The computer's operating system enters the G3 state.

To achieve the above objective, the present invention further provides a device for achieving quick startup, which at least includes: a first pulse generation module, a detection module, a second pulse generation module, and a startup signal generation link module, wherein:

The first pulse generation module is used to generate a trigger pulse that triggers sleep after receiving the power-down notification signal and send the pulse to the detection module, so that the detection module leads the operating system 1 to S4 / G3 through the power-on signal generation link module. Status

The detection module is used to record the power-down information according to the power-down notification signal when the system AC is powered off, and is also used to send the power-down recovery signal to the second pulse generation module according to the recorded power-down information when the AC recovers;

The second pulse generation module is used to generate a trigger pulse and send it to the detection module after receiving the power-down recovery signal sent by the detection module, so that the detection module guides the operating system from the S4 / G3 state through the power-on signal generation link module. S3 status;

The power-on signal generation module is used to send a power on / off signal to the power supply of the computer according to the signal received by the self-test module.

Wherein, the device further includes a backup battery, which is used to send an ON-BATT signal as a power failure notification signal to the first pulse generation module and the detection module when the AC system is powered off.

It can be seen that the device and method provided by the present invention can enable the computer to enter and maintain the S3 state after AC power failure, so that a fast boot can be achieved when the S3 trigger event is triggered, thereby reducing the time it takes to enter the operating system when booting. time. Therefore, the method and the device provided by the present invention are beneficial to avoid the long waiting time of the user during the system startup process, thereby bringing convenience to the user, and the present invention can realize fast booting for the special case of AC power failure. Therefore, the present invention has a wider application range. Brief description of the drawings

FIG. 1 is an overall flowchart of the present invention for realizing fast booting.

FIG. 2 is a flowchart of quick startup when the system AC is powered off and restored according to the present invention. FIG. 3 is a block diagram of a device for implementing fast booting provided by the present invention in an embodiment of the present invention. Mode of Carrying Out the Invention

The present invention is described in detail below with reference to the drawings.

The invention is a method and a device for realizing fast booting. In this method, when a system AC power failure occurs in a computer, the power failure information is recorded in a corresponding memory, and when the AC recovers, according to the recorded power failure information The computer's operating system enters and maintains the S3 state until the S3 trigger event is triggered to achieve fast boot. In the device provided by the present invention, the detection module detects an AC power failure event, and the detection module uses the pulses generated by the first pulse generation module and the second pulse generation module to control the power-on signal generation module to operate the computer. The system enters and stays in the S3 state, so as to meet the needs of fast startup.

Referring to FIG. 1, the present invention implements fast booting by entering the operating system from the S3 state. The quick booting includes the following steps:

Step 100: According to the user's operation, the operating system of the computer is in any one of the states S0, S3, S4, and S5.

Step 101: The operating system determines whether a system AC power failure has occurred. If so, step 102 and subsequent steps are performed. Otherwise, the operating system maintains the current state and returns to step 101 until AC power failure occurs, and then step 102 or the operating system is performed. After changing the current state according to the user's operation, the process ends;

Step 102: The computer records AC power-down information, and after the AC recovers, enables the operating system Enter and maintain the S3 state. After the user triggers the S3 trigger event, the S3 state enters the operating system, thereby achieving fast boot.

In the embodiment of the present invention, referring to FIG. 2, implementing the above step 102 specifically includes the following steps:

Step 200: After the system is powered off, the computer records the power-down information. In the embodiment of the present invention, the power-down information is recorded according to the level state of the power-down information indicator (ON-VBA) signal. When the motherboard has a backup battery, , The ON-VBA signal is the power-off signal identifier (ON-BATT M signal from the backup battery, and when there is no backup battery on the motherboard, the ON-VBA signal is the 3.3VSB signal on the motherboard, the ON The -VBA signal is used to indicate whether an AC power failure has occurred. The system records power-down information according to the ON-VBA signal. The specific implementation is as follows:

Method 1: When the backup battery is powered on the motherboard: The backup battery on the computer motherboard always sends a power-down notification signal ON-BATT to the motherboard, which is always in a low-level state, only when the computer is in the system AC power-off state The ON-BATT signal is pulled high to a high-level state. When a system AC power failure occurs, the motherboard receives the high-level ON-BATT signal and records the power-down information in a register of the motherboard;

Method 2: When there is no backup battery power supply on the motherboard: If the computer loses AC power, then 3.3VSB does not exist. Based on the 3.3VSB non-existence judgment, the motherboard obtains the current system AC power failure, and records it in the register of the motherboard. Electrical information; Among them, 3.3VSB is a power supply voltage on the motherboard. When the computer is still in the S5 state while the AC plug is still connected to the power supply, 3.3VSB exists; and when the computer is in the G3 state when the AC plug is not connected to the power supply, 3.3VSB Does not exist, therefore, the present invention uses the 3.3 VSB signal as a signal for determining whether the AC is powered off;

In the embodiment of the present invention, the main board is provided with a backup battery for power supply. Therefore, the embodiment of the present invention adopts the first manner to implement recording of power-down information, and the specific implementation is as follows: The idle general-purpose input and output on the south bridge of the motherboard (GPIO M detects the received ON-BATT signal. When this signal is detected to be at a high level, the corresponding value is recorded in the corresponding register on the south bridge of the motherboard. In the embodiment of the present invention, if it is detected that the ON-BATT signal is at a high level, a 1 is recorded in the M-BATT register of the south bridge of the motherboard, which is used to indicate that the previous state of the system has a power-down record. A 0 in the M-BATT register indicates that the system AC power supply is normal. In various embodiments of the present invention, different registers on the motherboard may be used to record the power-off information, but the used registers must be powered by the computer motherboard battery. A register, which can ensure that the values stored on it are not lost under the states of S3, S4, S5, and G3, for the BIOS to query the power-down information recorded in the register when the system is restarted; in other embodiments of the present invention You can also use other different values to record in the corresponding register to indicate the power-down situation of the system. The value recorded in this register and each value and power-down Correspondence relationship does not affect the state of implementation of the invention;

Step 201: After the computer is powered off, the computer enters the S4 / G3 state. In the embodiment of the present invention, the backup battery module is provided on the motherboard. Therefore, in this step, the computer enters the S4 state. In other embodiments of the present invention, If there is no backup battery on the motherboard, the computer chooses to enter the G3 state; S4 refers to the state where the computer is suspended to the hard disk, which is different from the S3 state where the computer is suspended to the memory. When the computer enters the S4 state, it will enter the S4 state. All computer field information before hibernation is stored in the hard disk. In this S4 state, the hardware in the computer is turned off. If the user triggers the S4 wake-up condition by, for example, pressing the power switch, the computer will save it in the operating system or BIOS All computer field information before the S4 state in the hard disk is written to the original location as it is, so that the hibernation state is consistent;

Step 202: Determine whether the AC is restored, and if so, perform step 203 and subsequent steps, otherwise, return to step 201 to keep the computer in the S4 / G3 state, and perform step 203 and subsequent steps until the AC is restored;

Steps 203 to 204: The system recovers from the AC according to the preset settings in the BIOS. After the automatic startup, during the system startup process, the BIOS queries the power-off record in step 200 to determine whether the computer has been powered off, and if so, perform step 205 and subsequent steps, otherwise, perform step 208;

In the embodiment of the present invention, the BIOS reads the recorded value from the M-BATT register. If the value is 1, it is determined that the computer has been powered off. If the value is 0, it is determined that the computer has not been powered off.

Steps 205 to 207: The BIOS sends an instruction to the system to enter the S3 state, and the system receives and responds to the instruction. Then, the system enters the S3 state, and after triggering the S3 state trigger event, the computer enters the operating system according to the trigger event to end the fast The process of booting; thus, the computer enters and maintains the S3 state after AC power is restored, and the system can be awakened by triggering the S3 trigger event, thereby achieving the purpose of fast startup;

In the embodiment of the present invention, the GPIO signal on the south bridge of the computer motherboard is used to trigger the power-on (POWERBT) signal, and the POWERBT is used as an instruction to the system to enter the S3 state by the BIOS, and the system enters the S3 state after receiving the instruction;

Step 208: After the BIOS determines that the computer has not been powered down through inquiry, the BIOS boots the system into the S5 state, and then executes step 207. The BIOS boots the system from the S5 state to the operating system according to a trigger action of the user, for example, by pressing a boot button. The content of this step 208 is content that can be implemented by a person skilled in the art without creative labor, and the BIOS enters the operating system through the S5 state that is not within the scope of fast booting. This step included in this process is only for the realization of this process. Strictly, this step should not be considered as a necessary step to achieve fast booting according to the present invention.

Referring to FIG. 3, in order to implement the fast booting process after the AC power-down shown in FIG. 2 above, the present invention uses the circuit device shown in FIG. 3 to implement the fast boot. The circuit device specifically includes: a first pulse generating module 301, a detection The module 302, the second pulse generating module 303, the start-up signal generating link module 304, and the backup battery 305, of which: If the computer has a system AC power failure, the backup battery 305 immediately starts and sends a high-potential ON-BATT signal to the first month permanent charge generation module 301. After the first pulse generation module 301 receives the ON-BATT signal, Generate a trigger pulse SLEEPS + for triggering sleep, and send the trigger pulse to the detection module 302; after receiving the SLEEPSW +, the detection module 302 records power-down information according to the ON-BATT signal received from the backup battery 305, and The detection module 302 sends a power-on request signal PWROK to the power-on signal generation module 304. After receiving the PWROK signal, the power-on signal generation module 304 sends a host power-on signal PS-ON #, thereby turning on the host power and allowing the operating system to automatically enter S4 status;

When the AC recovers, the detection module 302 detects that the AC has recovered. The detection module 302 turns on the power of the host through the power-on signal generation link module 304 to make the system wake up from the S4 state;

After the system wakes up from the S4 state, during the self-test, the detection module 302 determines whether a power failure has occurred according to the saved power-down information. If it is found that the system has lost power, the detection module 302 will continuously issue AC after entering the operating system -UP signal to the second pulse generation module 303. After receiving the AC-UP signal, the second pulse generation module 303 continuously generates a trigger pulse PWRBT # indicating that the AC power is restored, and sends the trigger pulse to the detection module 302, the detection module 302 After receiving the pulse, it continuously sends a power-on request PW OK to the power-on signal generation link module 304, and the power-on signal generation link module 304 suspends the computer to the memory, so that the system enters the S3 state;

By using the circuit shown in FIG. 3, the computer can always be maintained in the S3 state, and the user can quickly enter the operating system after the user triggers the S3 trigger event, thereby achieving fast booting;

Wherein, in other embodiments of the present invention, the circuit device provided by the present invention for realizing fast startup may not have a backup battery, and does not affect the implementation of the present invention. In these embodiments, The detection module and the first pulse generation module determine whether a system AC power failure occurs according to the 3.3 VSB on the motherboard, and record the power down information when the system AC power failure occurs, so that the operating system enters the G3 state. When the AC recovers, the detection The module, the second pulse generating module and the power-on signal generating link module enable the system to enter from the G3 state and maintain the S3 state, so as to realize fast booting when the user triggers the S3 trigger event.

The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the present invention. Within the scope of protection.

Claims

Claim

1. A method for realizing fast booting, characterized in that, if the computer experiences system AC power loss, the method includes:

Step B: Determine whether the AC is restored. If not, the computer remains in S4 / G3 state and return to Step B until AC is restored. If so, the operating system starts automatically and the operating system according to the saved in step A during the startup process. Power-down information enters the S3 state from the S4 / G3 state. Then, the computer operating system maintains the S3 state until the S3 trigger event is triggered and the computer enters the operating system.

2. The method according to claim 1, wherein the step A of the computer recording power-down information comprises:

3. The method according to claim 2, characterized in that, when the computer motherboard has a backup battery for power supply, the power-down notification signal is a high-level ON-BATT signal sent by the backup battery to the motherboard, and the motherboard is based on the signal If it is determined that the system AC power-off occurs, the step of recording the power-down information on the register is performed.

4. The method according to claim 3, wherein the step A of the computer recording power-down information comprises:

5. The method according to claim 2, wherein, when the computer motherboard is not powered by a backup battery, the power-down notification signal is 3.3VSB, and the computer motherboard obtains a system AC power failure according to the 3.3VSB non-existence judgment. The step of recording power-down information on a register is performed.

6. The method according to claim 2, characterized in that, in step B, the operating system entering the S3 state from the S4 / G3 state according to the power-down information saved in step A during startup includes:

Step B1: The computer's basic input-output system BIOS reads a value recorded by the register from the register powered by the battery of the computer's motherboard, and judges based on the value that the computer has experienced a system AC power failure;

Step B2: The BIOS continuously sends instructions to the operating system to enter the S3 state until the operating system receives and responds to the instructions, and the operating system enters the S3 state according to the received instructions to enter the S3 state.

7. The method according to claim 1, characterized in that when a backup battery is powered on the computer motherboard, in step A, the computer's operating system enters the S4 state; when there is no backup battery on the computer's motherboard, step A The computer's operating system enters the G3 state.

8. A device for realizing fast startup, characterized in that the device comprises at least: a first pulse generation module, a detection module, a second pulse generation module, and a startup signal generation link module, wherein:

The first pulse generation module is used to generate a trigger pulse that triggers sleep after receiving the power-down notification signal and send the pulse to the detection module, so that the detection module guides the operating system into the S4 / G3 state through the power-on signal generation link module. ;

The detection module is used to record the power-down information according to the power-down notification signal when the system AC is powered off, and is also used to send the power-off information to the second pulse generation module according to the recorded power-down information when the AC is restored. Electrical recovery signal

9. The device according to claim 8, characterized in that the device further comprises a backup battery for sending the first pulse generation module and the detection module as a power failure notification when the AC system is powered off. ON-BATT signal of the signal.