TW411409B - Suspension method for computer system - Google Patents

Abstract

A suspension method for computer system combines 2 functions that are Suspend to RAM and Suspend to Disk. The method uses automatic self-refresh type memory that is energized by the independent power supply and pre-stored the operation status. This method is that if the computer system is restarted after system power switch-off, the computer system can be resumed quickly to the operation state that is exactly the same as in the previous running condition before the power switch-off. It can reduce the long period of time for waiting the power-on and operation system loading.

Description

411409

A method of suspending a computer system (Suspend). When the system is suspended 7 and the system is restarted after the power is turned off, there is no need to wait for a long time to boot up and wait for the operating system to load before the system can be restored to shutdown. Operation status. ‘'Common and π’ After the computer is turned on, it must go through a boot test and a long operating system (〇 S) loading time. If the user only wants to query a short piece of data, the time will be lost while waiting for the startup and loading 0s. Therefore, in order to save the time of booting and loading 0s, it is really necessary to propose a method 'to achieve the function of On Now Function. On current computer systems ’all power management functions (p〇wer

Management Function) all have the functions of Suspend t RAM and Suspend t Disk. As for the Suspend to RAM method, its processing time is faster, but there are many chips that have not been cut off, so there is still a lot of power consumption problems. In the Suspend to Disk method, although the entire system is in The power is off, but because the necessary status data needs to be stored in the disk, it will take longer to process. The present invention proposes a way of combining the two functions of Suspend to RAM and Suspend to Disk 'using the memory of an automatic refresh recovery (Se 丨 f — Refresh) type' to supply power to the above-mentioned memory through an independent power source, and suspend the system After the previous states are saved in the memory, turn off the system power. Because there is no need to store the status value in the magnetic disk, it can save the operation and processing time.

Five_41i4G! Description of the invention (2) It should be powered, so the system power can be completely cut from the hanging state (that is, restart the small system power). Low power two can quickly start to restore the operating state before the system is shut down. Alas, the Θ machine and the OS loading process. To avoid the above problems, the present invention proposes that when the computer system is suspended, the door and other η systems are restarted after the power is turned off, without waiting for a long time to start and wait for the operating system to load :: Long operating state , Its method includes: m restart the system = the above system is under normal operation 'execute a suspension procedure step: store the state value of the CPU; store the type of system memory and if = size to (: _ in; store VGA S and VGA in the memory = store state values of all necessary circuit devices; and M is closed ^ After restarting the system power, perform the following steps: From the CM0S, take the type of the system memory and Capacity; CPU enters system management mode f operation; restores all necessary devices to the state before the system is suspended; restores the contents of the VGA memory before the system is suspended and the state of the VGA. The state value of the cpu; and, Exit the system management mode. State L, restore the 'status value of the above CPU, the contents of the VGA memory, the value of the VGA, and the status values of all necessary devices, and store them in the system memory Brief description of the schema:

Page 5 V. Description of the Invention Fig. 1 shows the flow of the suspension procedure in the embodiment of the present invention. Fig. 2 shows the flow chart of restarting the system from the suspension state in the embodiment of the present invention. The book should be set by Sus software. Su (statu memory memory system memory text will be described in detail with reference to the flowchart shown in Figures 1 and 2) For a computer system, the power of the system memory is provided by A voltage source (such as a battery) is provided independently of the system. Therefore, the data stored in the system memory will not be lost when the system power is turned off. Moreover, the memory system is automatically updated and restored. The computer system is under normal operation At this time, if the user executes a pendant pendant, it can be triggered by hardware (for example, by pressing Power Off) or triggered. The computer system performs the following steps to suspend the pendant of the computer system. After the start, first, the state value s of the CPU is stored in the system memory (step 11). Then, the system memory type and capacity are stored in the CMOS (step 12). Then, the contents of the VGA (such as the daytime surface) Data), and the VGA status values are stored in the system (step 13).

Ιϋϋ 411409 V. Description of the invention (4) " Then 'store the state values of all necessary circuit devices (step 14); for example ^' store the state of all control devices (step 14a); store keyboard, communication itch, printer Status values of the print port (step 4b); and status values of the real-time clock, interrupt controller (for example 8 2 5 9), and timer (for example 8 2 5 4) are stored (step 4 c). Finally, the system power is turned off (step 15) to complete the suspension of the computer system. When the user wants to use the computer system, he can restart the system power and perform the following steps to quickly restore the state before the system was not suspended. After restarting the system power, first, read the type and capacity of the system memory from the CMOS (step 21). Next, the CPU is put into the operation of the System Management Mode (step 22). Then 'Restore the state of all necessary devices before the system is suspended (Step 2 3)' For example, 'Restore the state of all control devices (Step 2 3 a); restore the state values of the keyboard, communication port, printer print port, etc. (Step 23b); and 'Restore the status values of the real-time clock, interrupt controller, and timer (2 3 c) 〇' Restore the contents of the VGA memory before the system is suspended, and the status values of the VGA (Step 24) ; And 'Restore the status value of the CPU (step 25). Finally, let the CPU leave the system management mode to complete the restart of the computer system. It can be known from the above that when the computer system enters the suspended state, since the state values of the CPU, peripherals, control devices, etc. are stored in the system memory,

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V. Description of the invention (5) This can have the advantage of fast processing as Suspend to RAM. In addition, because the system memory system is powered by an independent power source ', in the suspended state, the system power can be turned off and the power consumption is reduced', so it also has the advantage of the Suspend to Disk function. When the computer restarts the system power and makes the computer system out of the suspension & state, because it only needs to supply the system memory to each corresponding device from the state before the suspension, so there is no need to wait for the boot. You can save a lot of time by waiting for the operating system to load. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to define the present invention. Anyone familiar with the art can make some changes and improvements without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the appended patent application.

Claims (1)

4ii4G9 Six applications for patent scope 1. A method of suspending a computer system—re-starting the material, “the system power supply is not required after a long period of time, including: the operating state of the system”, which steps under the normal operation of the above system: 仃 —suspension program For example, the state value of the CPU is stored; the type of the system memory and the content of the VGA memory are stored; and VGA = C ^; the state values of all necessary circuit devices are stored; the value is turned off; After restarting the system power, perform the following steps to read the type of system memory from CMOS and allow the CPU to enter the system management mode operation; 'Restore all the necessary circuit devices to the state before the system is suspended; restore the VGA before the system is suspended The contents of the memory, and the status value of the VGA recovery CPU; and leaving the system management mode; the status value of the above-mentioned CPU, the contents of the VGA memory, the note of the VGA, and the status values of all necessary circuit devices are all Stored in the system lnsi Zhao. 2. The method as described in item 1 of the scope of patent application, wherein the above-mentioned system is a self-refresh type memory, UHQd VI. The scope of patent application is independent of the above-mentioned system power supply> μ ^ The system can respond to electricity in order to use the method described in item 1 of the above-mentioned range. Among them, the above steps of storing all necessary circuit device state values include : Store the status of all control devices' store the status values of keyboard, communication port, printer print port, etc .; and store the status values of real-time clock, interrupt controller, and timer, and restore all necessary circuit devices The steps before the system is suspended include: restoring the status of all control devices; restoring the status values of keyboard, communication port, printer print port, etc .; and restoring the status of real-time clock, interrupt controller, and timer value. Page 10