CN105009086B - A kind of method, computer and switching device for realizing processor switching - Google Patents
A kind of method, computer and switching device for realizing processor switching Download PDFInfo
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- CN105009086B CN105009086B CN201480000167.6A CN201480000167A CN105009086B CN 105009086 B CN105009086 B CN 105009086B CN 201480000167 A CN201480000167 A CN 201480000167A CN 105009086 B CN105009086 B CN 105009086B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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Abstract
The embodiment of the invention provides a kind of realization processor switching methods, computer and switching device, one end of the switching device is connected to the platform controller of computer, a plurality of interface channel is set between the other end and multiple processors of the computer, in the computer starting, the switching device is used to open itself interface channel between the primary processor, close itself and the interface channel between processor, in the computer operational process, the switching device is for determining whether the primary processor needs replacing, when determining that the primary processor needs replacing, select at least one from processor, open itself and the selected interface channel between processor, to which the switching device can close itself interface channel between the primary processor, with disconnect the primary processor with Connection between the platform controller avoids replacement primary processor influence caused by computer business.
Description
Technical field
The present embodiments relate to computer technology, in particular to a kind of method for realizing processor switching, computer and
Switching device.
Background technique
Computer is the important component of data processing.With the extensive development of informationization technology, the whole world produces daily
Raw data are increasing, in face of so big data volume, need to reinforce the processing capacity of computer, the core component of computer
Processor (CPU) is also gradually evolved into multicore from monokaryon.Current computer is generally made of multiple processors, multiple processors it
Between interconnected by Quick Path Interconnect (QuickPath Interconnect, QPI), the multiple processor can be divided into two
Class, one kind are primary processors, and one kind is from processor, the platform controller (Platform of main process task and computer
Controller Hub, PCH) it is connected directly, it can directly be interacted with platform controller, and pass through main process task from processor
Device is communicated with platform controller, and all interactions from processor and platform controller need real by primary processor transfer
It is existing, primary processor can be cooperateed with to carry out computer business processing from processor.
However carried out in business procession in computer, processor may be abnormal or failure, so as to cause can
It corrects in mistake or not correctable error, such as temperature of processor exception or the excessively high caused alarm of temperature, processor chips
Portion's alarm of caused Cat_Err extremely etc., causes computer performance decline even to be restarted, need to replace in time failure processor with
Elimination problem.In the prior art, when primary processor generates failure, it usually needs first could replace failure to electricity under computer
Primary processor.However, will affect the progress of business to electricity under computer, it is generally desirable to the situations in the not lower electricity of computer by client
Under the primary processor of failure is replaced.
Summary of the invention
The embodiment of the present invention proposes a kind of method, computer and switching device for realizing processor switching, can count
Primary processor is switched in the case where the not lower electricity of calculation machine.
In a first aspect, the embodiment of the present invention proposes a kind of computer, the computer includes multiple processors and platform
Controller, for the multiple processor by Quick Path Interconnect, the multiple processor includes primary processor and from processor；
The computer further includes switching device, and one end of the switching device is connected to the platform controller, another
A plurality of interface channel is set between end and the multiple processor, in the computer starting, the switching device is opened certainly
Interface channel between body and the primary processor closes itself and the interface channel between processor, in the meter
In calculation machine operational process, the switching device is determining the main process task for determining whether the primary processor needs replacing
It when device needs replacing, selects at least one from processor, opens itself and the selected interface channel between processor.
With reference to first aspect, in the first possible implementation, the switching device is also used to close itself and institute
State the interface channel between primary processor.
The possible implementation of with reference to first aspect the first, in the second possible implementation, the switching
Device is specifically used for the operation shape of the primary processor monitored according to the mainboard control unit of itself or the computer
State, determines whether the primary processor needs replacing.
With reference to first aspect the first or second of possible implementation, in the third possible implementation,
The switching device be also used to itself and it is selected sampled from the interface channel opened between processor, according to adopting
Sample data, determine itself and it is selected whether worked normally from the interface channel opened between processor, if normal work
Make, then executes the operation of interface channel of the closing itself between the primary processor.
With reference to first aspect the first or second or the third possible implementation, in the 4th kind of possible realization
In mode, the switching device is also used to before opening itself and the selected interface channel between processor, touching
Hair interrupts migration instruction, and the interruption migration instruction is for moving to the selection for the interruption configuration information of the primary processor
Slave processor register.
Any possible implementation of first to fourth with reference to first aspect, in the 4th kind of possible implementation
In, the switching device is also used to before opening itself and the selected interface channel between processor, and triggering is logical
Road configuration-direct, the channel configuration-direct are used to reconfigure the Quick Path Interconnect link between the multiple processor,
To be configured to new primary processor from processor for selected.
Second aspect, the embodiment of the present invention propose a kind of method for realizing processor switching, for including multiple processing
The computer of device, platform controller and switching device, the multiple processor pass through Quick Path Interconnect, the multiple processor
Including primary processor and from processor；One end of the switching device is connected to the platform controller, the other end and described more
A plurality of interface channel is set between a processor；This method comprises:
The switching device opens itself interface channel between the primary processor in the computer starting,
Close itself and the interface channel between processor；
The switching device determines whether the primary processor needs replacing in the computer operational process, true
When the fixed primary processor needs replacing, select at least one from processor, open itself and it is selected from processor it
Between interface channel.
In conjunction with second aspect, in the first possible implementation, the method also includes: the switching device is closed
Itself interface channel between the primary processor.
In conjunction with the first possible implementation of second aspect, in the second possible implementation, the switching
For device in the computer operational process, determining whether the primary processor needs replacing includes: the switching device in institute
It states in computer operational process, according to the fortune for the primary processor that the mainboard control unit of itself or the computer monitors
Row state, determines whether the primary processor needs replacing.
In conjunction with the first or second of possible implementation of second aspect, in the third possible implementation,
The method also includes:
The switching device to itself and it is selected sampled from the interface channel opened between processor, according to
Itself is determined using data and selected whether is worked normally from the interface channel opened between processor；The then switching
Device itself and it is selected worked normally from the interface channel opened between processor when, execute close itself with it is described
The step of interface channel between primary processor.
In conjunction with the first or second or the third possible implementation of second aspect, in the 4th kind of possible realization
In mode, before the switching device opens itself and the selected interface channel between processor, the method
Further include: migration instruction is interrupted in switching device triggering, and the interruptions migration is instructed for by the interruption of the primary processor
Configuration information moves to the selected register from processor.
In conjunction with first to fourth any possible implementation of second aspect, the possible implementation in the 5th
In, before the switching device opens itself and the selected interface channel between processor, the method is also wrapped
Include: the switching device trigger port configuration-direct, the channel configuration-direct for reconfigure the multiple processor it
Between Quick Path Interconnect link, new primary processor is configured to from processor by selected.
The third aspect, the embodiment of the present invention propose a kind of switching device, for including multiple processors and platform courses
The computer of device, for the multiple processor by Quick Path Interconnect, the multiple processor includes primary processor and from processing
Device；Described device includes switch module and control module；
One end of the switch module is connected to the platform controller, is arranged between the other end and the multiple processor
A plurality of interface channel；
The control module is used in the computer operational process, determines whether the primary processor needs replacing；
The switch module is used in the computer starting, is opened itself connection the primary processor between and is led to
Itself and the interface channel between processor are closed in road, and when determining that the primary processor needs replacing, selection is at least
One, from processor, is opened itself and the selected interface channel between processor.
In conjunction with the third aspect, in the first possible implementation, the switch module is also used to close itself and institute
State the interface channel between primary processor.
In conjunction with the first possible implementation of the third aspect, in the second possible implementation, the control
Module is specifically used for the operating status of the primary processor monitored in the mainboard control unit of itself or the computer
When, determine whether the primary processor needs replacing.
In conjunction with the first or second of possible implementation of the third aspect, in the third possible implementation,
Described device further include: sampling module, for the switch module and selected from the connection opened between processor
Channel is sampled；The control module is also used to determine the switch module and selected from processing according to sampled data
Whether the interface channel opened between device works normally；The switch module is specifically used for opening described in control module determination
When closing module and the selected normal work from the interface channel opened between processor, itself and the primary processor are closed
Between interface channel.
In conjunction with the first or second or the third possible implementation of the third aspect, in the 4th kind of possible realization
In mode, the control module is also used to before opening itself and the selected interface channel between processor, touching
Channel configuration-direct is sent out, the channel configuration-direct is used to reconfigure the Quick Path Interconnect chain between the multiple processor
Road is configured to new primary processor from processor for selected.
In conjunction with first to fourth any possible implementation of the third aspect, in the 5th kind of possible implementation
In, the control module is the mainboard control unit of the computer.
In the embodiment of the present invention, one end of the switching device is connected to the platform controller, the other end and described more
A plurality of interface channel is set between a processor, the switching device can determine whether the primary processor needs replacing,
It when determining that the host CPU needs replacing, selects at least one from processor, opens itself and selected between processor
Interface channel, itself interface channel between the host CPU can be closed so as to the switching device, to disconnect
State the connection between host CPU and the PCH, solve in the prior art due to host CPU is connected with PCH and can not computer not
The problem of plugging host CPU in the case where lower electricity realizes and replaces host CPU in the case where computer not lower electricity, avoid replacement
It is influenced caused by computer business when host CPU.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 (a) is a composition figure of active computer；
Fig. 1 (b) is computer composition figure provided in an embodiment of the present invention；
Fig. 2 is switching device composition figure provided in an embodiment of the present invention；
Fig. 3 is another switching device composition figure provided in an embodiment of the present invention；
Fig. 4 is another switching device composition figure provided in an embodiment of the present invention；
Fig. 5 is a kind of method flow diagram for realizing processor switching provided in an embodiment of the present invention；
Fig. 6 is the method flow diagram of another realization processor switching provided in an embodiment of the present invention；
Fig. 7 is another switching device composition figure provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention proposes a kind of method, computer and switching device for realizing processor switching, can count
The switching to primary processor is realized in the case where the not lower electricity of calculation machine, when avoiding replacement primary processor caused by computer business
It influences.
If Fig. 1 (a) show an example of computer, which includes flash memory 10,11 He of platform controller (PCH)
Multiple CPU.The multiple CPU is included host CPU and is shown with 1 host CPU and 3 from CPU from CPU, Fig. 1 (a), such as main
CPU12A, from CPU12B, 12C and 12D, the host CPU 12A by direct media interface (Direct Media Interface,
DMI) be connected with the PCH11, it is described to be connected from CPU12B, 12C and 12D by QPI link with the host CPU 12A, it is described from
CPU12B, 12C and 12D realize interaction/communication with the PCH11 by the transfer of the host CPU 12A.The PCH11 also with
The flash memory 10 is connected, and the flash memory 10 is mainly used for saving basic input output system (the Basic Input of the computer
Output System, BIOS) program, the flash memory 10 can also be that other preserve the storage medium of bios program, such as
RAM/ROM.In addition, the computer can also including hard disk etc. storage mediums, for saving document and the behaviour of the computer
Make the data such as system program, the computer can also be described including I/O equipment, such as mouse, keyboard and device PCI etc.
PCH11 can be connected with the hard disk and I/O equipment.
Since the computer carries out in business procession, the host CPU 12A and described from CPU12B, 12C and 12D
It is required to interact with the PCH11, and described interact needs with the PCH11 from CPU12B, 12C and 12D and pass through
The transfer of the host CPU 12A, therefore the prior art is when needing replacing host CPU 12A, can only first to the computer integrally under
Host CPU is replaced again after electricity, cannot directly be plugged the host CPU 12A in the computer not lower electricity, otherwise be will lead to described
Host CPU and the interruption interacted from CPU with PCH, further cause computer glitch or paralysis.
In order to solve this problem, the embodiment of the present invention proposes a kind of computer, as shown in Fig. 1 (b), with Fig. 1 (a) institute
The computer shown is compared, and the computer further includes switching device, and the switching device is set to the PCH11 and the master
Between CPU12A, one end of the switching device 13 is connected to the PCH11, is arranged between the other end and the multiple CPU more
Interface channel, in the computer starting, the switching device 13 is used to open itself connection between the host CPU
Itself and the interface channel between CPU are closed in channel, enable the host CPU and it is described from CPU with it is described
PCH11 communication, guarantees the normal processing of the computer business.In the computer operational process, the switching device 13
For determining whether the primary processor needs replacing, when determining that the host CPU needs replacing, select at least one from CPU,
Itself and the selected interface channel between CPU are opened, such as opens itself connection between 12B or 12C or 12D
Channel, so that the switching device 13 can close itself interface channel between the host CPU, to disconnect the host CPU
With the connection between the PCH11, solving in the prior art can not be in the not lower electricity of computer since host CPU is connected with PCH
In the case where the problem of plugging host CPU, realize and replace host CPU in the case where computer lower electricity, avoid replacement host CPU
When influenced caused by computer business.
Specifically, in the computer operational process, the switching device 13 can be to the operating status of the host CPU
It is monitored, and according to the operating status of the host CPU, determines whether the host CPU needs replacing, for example, working as the host CPU
It breaks down or when operation irregularity, the switching device 13 can monitor that the host CPU is in malfunction, determine the master
CPU is needed replacing, and is executed and is selected at least one from CPU, opens itself and the selected behaviour from the interface channel between CPU
Make, it is selected at this time to interact/communicate with the PCH11 by the switching device 13 from CPU, thus described
Switching device 13 can be further turned off itself interface channel between the host CPU, with disconnect the host CPU with it is described
The connection of PCH11.The switching device 13 can also further indicate the energy supply control module of the host CPU to the host CPU
Carry out down it is electrically operated, so that user replaces the host CPU of failure in the case where computer lower electricity.In addition, the fortune of the host CPU
Row state can also be supervised by the mainboard control unit (Base Mainboard Controller, BMC) of the computer
It surveys, the operating status for the host CPU that the switching device 13 can also be monitored according to the mainboard control unit determines institute
State whether host CPU needs replacing.
In actual application, the interface channel between the switching device 13 and the multiple CPU often by
The influence of external environment avoids the computer from unnecessary failure occur in order to ensure reliability, and the switching device 13 exists
Close between itself interface channel between the host CPU, can to itself and it is selected from the company opened between CPU
It connects road to be sampled, is ensuring itself and the selected feelings that can be worked normally from the interface channel opened between CPU
Under condition, itself interface channel between the host CPU is turned off.Otherwise, described device can carry out fault warning, so as to user
Even if knowing that failure is handled, or itself and another can also be opened from the interface channel between CPU, it is described to ensure
Host CPU can be replaced smoothly.
In the foregoing description, the switching device 13 by will between PCH11 and host CPU connection switch to PCH11 with from
Connection between CPU realizes the online removal of failure host CPU.However, after in order to guarantee to remove the host CPU, the meter
Calculation machine still is able to the interruption of host CPU described in normal response, or can continue to execute and handle when the host CPU removes
Business, the switching device 13 can also be before opening itself and the selected interface channel between CPU, in triggering
Disconnected migration instruction and/or process migration instruction, so that the operating system of the computer or basic input output system energy
Enough migrated according to the interruption instructs, and the interruption of the host CPU is moved to the register from CPU, can be according to described
Process migration instructs, and by the process migration of the host CPU to the register from CPU, guarantees after replacing the host CPU,
Every business of the computer is normally carried out.
Make below in conjunction with the specific implementation of Fig. 2, Fig. 3 and Fig. 4 to switching device described in the embodiment of the present invention detailed
Thin description.
As shown in Fig. 2, the switching device 13 can specifically include switch module 131 and control module 132, the switch
One end of module 131 is connected with the DMI of the PCH11, the other end and host CPU and CPU is provided with a plurality of DMI interface channel,
Certainly, in other embodiments, the interface channel not necessarily DMI being arranged between the switch module 131 and the multiple CPU
Channel, or other types of interface channel.Specifically, when it is described from CPU be it is multiple when, the switch module 131 is answered
CPU is at least provided with interface channel with one, is respectively provided with the switch module 131 with from CPU12B, 12C and 12D in figure
There is interface channel to show.
The control module 132 is used in the computer operational process, determines whether the host CPU needs replacing；
For example, the control module 132 can determine that the host CPU is according to the instruction of user or the operating status of the host CPU
It is no to need replacing, wherein the operating status of the host CPU includes malfunction and non-faulting state, and the control module 132 is also
It can be used in the computer operational process, the operating status of the host CPU be monitored, such as monitor the master
The alert message that CPU is reported, comes whether host CPU described in real-time monitoring breaks down, in addition, the control module 132 can be with
According to the mainboard control unit of other modules, such as the computer, the operating status of the host CPU monitored is to determine
State whether host CPU needs replacing.
The switch module 131 is used in the computer starting, is opened itself connection the host CPU between and is led to
Itself and the interface channel between CPU are closed in road, determine that the host CPU needs replacing in the control module 132
When, select at least one from CPU, open itself and the selected interface channel between CPU, for example, open itself with
Interface channel between the slave CPU12B of selection.In addition, when the control module 132 determines that the host CPU needs replacing, institute
Switch module 131 is stated other than opening itself interface channel between 12B or 12C or 12D, itself and institute can also be closed
The interface channel between host CPU is stated, the fault warning occurred when to avoiding removing the host CPU ensure that the host CPU
The smoothly normal work of removal and the spare CPU.
In addition, the control module 132 can be with institute in order to remove the host CPU in the case where computer not lower electricity
The energy supply control module 14 for stating host CPU is connected, as shown in Fig. 2, to close itself and the master in the switch module 131
After interface channel between CPU, the control module 132 can control the energy supply control module 14 of the host CPU to described
Host CPU carry out down it is electrically operated, to replace or remove the host CPU in computer lower electricity.For example, the control
Module 132 can be connected with the energy supply control module 14 of host CPU, and so as to break down in host CPU etc., situations are needed replacing
When, control energy supply control module 14 carries out down host CPU electrically operated.
Further, the control module 132 can also the switch module 131 open itself and it is selected from
Before interface channel between CPU, trigger port configuration-direct, the channel configuration-direct is used between the multiple CPU
QPI link reconfigured, new host CPU is configured to from CPU by selected, for example, described reconfiguring
After QPI link between multiple CPU, the host CPU and the selected QPI link between CPU be will be switched off, to guarantee
The host CPU is not in fault warning or the business for influencing the computer when removing.It and is multiple from CPU described in
When, can according to the host CPU and each from the QPI link between CPU, reconfigure it is selected from CPU and it is other from
QPI link between CPU, to be configured to new host CPU from CPU for selected.Specifically, the control module 132
It can also be connected with the PCH11, as shown in Fig. 2, for example passing through (Low pin count Bus, LPC) or Smlink bus
Or I2C bus etc. is connected with the PCH11, the control module 132 can trigger system management interrupt by the PCH11
(System Management Interrupt, SMI) is interrupted, so that the computer can be held according to the SMI interrupt of triggering
The channel configuration-direct of row basic input output system, enables the basic input output system of the computer in the control
After molding block 132 triggers the channel configuration-direct, the QPI link between the multiple CPU is reconfigured, by the choosing
The slave CPU selected is configured to new host CPU.
In addition, the computer still is able to host CPU described in normal response after in order to guarantee to remove the host CPU
It interrupts, or can continue to execute the business handled when the host CPU removes, the control module 132 can also be in institute
State before switch module 131 opens itself and the selected interface channel between CPU, triggering interrupt migration instruction with/
Or triggering process migration instruction, wherein described to interrupt migration instruction for migrating the interruption configuration information of the primary processor
The interruption of the host CPU is obtained with confidence to the selected register from processor, such as from the register of the host CPU
Breath interrupts the configuration information configuration register from CPU according to the host CPU, so that the interruption of the host CPU be migrated
To described from CPU；The process migration instruction is for selected for moving to the task queue of the primary processor
From the register of processor, such as the task queue of the host CPU is obtained from the register of the host CPU, by the host CPU
Task queue is configured to the register from CPU, thus by the process migration of the host CPU to described from CPU.Specifically,
The interruption migration instruction and/or the process migration can be configured in the basic input output system of the computer in advance
Instruction, the control module 132 can the switch module 131 open itself and connect with described between CPU at least one
Before channel, SMI interrupt is triggered by the PCH11, so that the computer can execute base according to the SMI interrupt of triggering
The interruption migration instruction and/or business migration instruction of this input-output system, the interruption of the host CPU is moved to
It is described from CPU and/or by the process migration of the host CPU to described from CPU；In another example can be in advance in the computer
The interruption migration instruction and/or process migration instruction are configured in operating system, the control module 132, which can trigger, repairs
Positive machine check interrupt (Corrected Machine Check Interrupts, CMCI), so that the computer can be with
It is interrupted according to the CMCI of triggering, executes the interruption migration instruction and/or business migration instruction of operating system.
In the above description, when the host CPU needs replacing, the switch module 131 can open itself and institute
After stating the interface channel between the slave CPU of selection, interface channel between itself host CPU and the PCH11 is closed.So
And in actual application, in order to guarantee the reliability of computer, unnecessary failure is avoided the occurrence of, can also ensured
The switch module 131 and it is selected can work normally from the interface channel opened between CPU in the case where, then disconnect
Interface channel between the switch module 131 and the host CPU.Therefore, as shown in figure 3, the switching device can also include:
Sampling module 133, for the switch module 131 and selected from the interface channel opened between CPU
It is sampled；
The control module 132 can also be determined according to sampled data the switch module 131 with it is selected from CPU
Between the interface channel opened whether work normally；
The switch module 131 can the control module 132 determine the switch module 131 with it is selected from
When the interface channel opened between CPU works normally, itself interface channel between the host CPU is closed, it is otherwise, described to open
Itself and another can be opened from the interface channel between CPU by closing module 131, to ensure that the host CPU can be replaced smoothly,
Or the control module 132 can carry out fault warning.
In the foregoing description, although the control module 132 and the switch module 131 or the sampling module 133 can
With the design that becomes one, as shown in Figures 2 and 3, the control module 132 can be with the switch module 131 or described
Sampling module 133 is integrated, with integrated circuit (Application Specific Integrated Circuit) or now
Field programmable gate array (Field Programmable Gate Array) is realized.But it can also be by the control in practical application
Molding block 132 is independently of the switch module 131 or the sampling module 133, and the embodiment of the present invention is it is not limited here.
Specifically, when the control module 132 being designed independently of the switch module 131, the control module 132 exists
When determining that the host CPU needs replacing, select at least one from CPU, can be by pin level signal, or pass through chip string
Row bus (Inter Integrate Circuit BUS, I2C)/management interface (System Management Link,
Smlink) buses such as bus notify that the switch module 131, the switch module 131 can be according to the control modules
132 notification signal opens itself and the selected interface channel between CPU, such as opens the switch module 131
With from the interface channel between CPU12B.For example, as shown in figure 4, the control module 132 can be the mainboard control list
Member, the mainboard control unit 132 can be interacted by I2C Smlink bus etc. and the switch module 131.Institute
Stating switching device can also include interface module 134, for realizing the switch module 131 and the sampling module 133 and institute
State the signal interaction between mainboard control unit, the interface module 134, the sampling module 133 and the switch module 131
It is realized with ASIC or FPGA.The mainboard control unit can collect the error message that the host CPU reports or event in real time
Hinder alarm signal, to be monitored to the operating status of the host CPU, the mainboard control unit can also collect the finger of user
Show information, when user needs with change owner CPU, determines that the host CPU is replaced, select at least one from CPU, and lead to
It crosses the interface module 134 and notifies the switch module 131.The sampling module 133 can also pass through the interface module 134
The control module 132 is supplied to using data by described.
The embodiment of the invention provides it is a kind of realize processor switching method, as shown in figure 5, for including multiple CPU,
The computer of platform controller and switching device, for the multiple CPU by Quick Path Interconnect, the multiple CPU includes host CPU
With from CPU；One end of the switching device is connected to the platform controller, is arranged between the other end and the multiple CPU more
Interface channel, which comprises
S501: it is logical to open itself connection between the host CPU in the computer starting for the switching device
Itself and the interface channel between CPU are closed in road.
In the computer starting, the switching device opens itself interface channel between the host CPU, closes
Itself and the interface channel between CPU, enable the host CPU and it is described communicated from CPU with the PCH, guarantee
The normal processing of the computer business.
S502: the switching device determines whether the host CPU needs replacing in the computer operational process,
It when determining that the host CPU needs replacing, selects at least one from CPU, opens itself and the selected company between CPU
Connect road.
Specifically, the switching device can be according to the instruction of user or the operating status of the host CPU, described in determination
Whether host CPU needs replacing, such as when user has the demand for replacing the host CPU or the host CPU because of failure and other reasons
When needing replacing, the switching device can determine that the host CPU needs replacing, and select at least one from CPU, open itself with
The selected interface channel between CPU enables and selected replaces the host CPU and the PCH phase from CPU
Even, so as to the interface channel closed between the switching device and the host CPU, to disconnect the host CPU and the PCH
Between connection, solving can not plug in the prior art since host CPU is connected with PCH in the case where computer lower electricity
The problem of host CPU, realizes and replaces host CPU in the case where computer not lower electricity, to computer industry when avoiding replacement host CPU
It is influenced caused by business.
Specifically, the method provided in an embodiment of the present invention for realizing processor switching can be as shown in fig. 6, for including more
The computer of a CPU, platform controller and switching device, the multiple CPU pass through Quick Path Interconnect, the multiple CPU packet
Include host CPU and from CPU；One end of the switching device is connected to the platform controller, between the other end and the multiple CPU
A plurality of interface channel is set, which comprises
S601: the switching device monitors the operating status of the host CPU.
The operating status of the host CPU includes malfunction and non-faulting state, the switching device can in real time or
The operating status of periodic monitoring host CPU, such as by the failure warning information or error message of the host CPU active reporting,
Or be monitored by the operating parameter to the host CPU, to determine whether the host CPU is in malfunction.
S602: the switching device determines whether the host CPU needs replacing according to the operating status of the host CPU, such as
Fruit needs replacing, and selects at least one from CPU, then executes step S603.
Step S601 is optional step in other feasible embodiments, and the switching device can also be according to other devices
The operating status of the host CPU provided, determines whether the host CPU needs replacing.
In addition, the switching device can also be according to the instruction of user, to determine whether the host CPU needs replacing.
When it is described from CPU be multiple when, resources occupation rate can be selected minimum according to described from cpu resource occupancy
From CPU；
Or it can perhaps performance selection processing capacity be strong or performance is high according to the processing capacity from CPU
From CPU.
S603: migration instruction is interrupted in the switching device triggering, the interruption of the host CPU is moved to selected
From CPU.
When determining that the host CPU needs replacing, the switching device can trigger interruption migration instruction, and the interruption is moved
Instruction is moved for the interruption configuration information of the host CPU to be moved to the selected register from CPU, such as from the master
The register of CPU obtains the interruption configuration information of the host CPU, configures the choosing according to the interruption configuration information of the host CPU
The register of the slave CPU selected, the interruption of the host CPU is moved to it is selected from CPU so that subsequent selected
It can handle the interrupting service of the host CPU from CPU.
S604: switching device triggering process migration instruction, by the process migration of the host CPU to selected
From CPU.
When determining that the host CPU needs replacing, the switching device can also trigger process migration instruction, the process
Migration instruction is for for moving to the selected register from CPU for the task queue of the host CPU, such as from described
The register of host CPU obtains the task queue of the host CPU, by the task queue of the host CPU be configured to it is selected from
The register of CPU, by the process migration of the host CPU to selected from CPU, so that subsequent selected from CPU
The process of the host CPU can be continued with.
Step S603 and step S604 is that optional step in other embodiments can not also be to the interruption of the host CPU
Or business is migrated.
S605: the switching device trigger port configuration-direct is configured to new host CPU from CPU for selected.
Due to being interconnected according to demand by QPI link between the multiple CPU, before removing host CPU, can touch
Send out channel configuration-direct, the channel configuration-direct is for reconfiguring in the computer host CPU and from the QPI between CPU
Link guarantees master so that being disconnected the host CPU and the selected QPI connection between CPU after configuration QPI link
CPU is not in fault warning or the business for influencing the computer when removing.
In addition, when it is described from CPU be multiple when, such as from CPU12B, 12C and 12D, then reconfigure the multiple CPU
Between QPI connection when, can also be according to the host CPU and the QPI link from CPU12B, 12C and 12D, described in configuration
The slave CPU12B and the QPI link between CPU12C and 12D of selection, enable it is selected substituted from CPU12B it is described
Host CPU 12A becomes new host CPU, and ensure that and can work normally from CPU12C and 12D.
S606: the switching device opens itself and the selected interface channel between CPU.
QPI link after the interruption of the host CPU or process migration are completed and between the multiple CPU configures
At later, the switching device can open itself and the selected interface channel between CPU, thus described from CPU
The host CPU can be substituted.
S607: the switching device to itself and it is selected sampled from the interface channel opened between CPU, and
According to sampled data judge itself and it is selected whether worked normally from the interface channel opened between CPU, if normally
Work executes step S608.
The switching device can pass through institute after opening itself and the selected interface channel between CPU
State sampled data judge itself and it is selected whether can be worked normally from the interface channel opened between CPU, in determination
In the case where capable of working normally, the switching device executes S607 again, and otherwise, the switching device can carry out fault warning
Or itself and other interface channels between CPU can also be opened, to ensure that the host CPU can be replaced smoothly.
S608: the switching device closes itself interface channel between the host CPU.
The switching device determine itself and it is described being capable of normally/normal from the interface channel opened between CPU
After work, itself interface channel between the host CPU can be closed, can smoothly remove the host CPU so as to subsequent
Without causing any failure.
S609: it is electrically operated that the switching device indicates that the energy supply control module of the host CPU carries out down the host CPU.
The switching device instruction host CPU is carried out under it is electrically operated after, the host CPU can be plugged, and
It will not influence the business of the computer.
In embodiments of the present invention, in computer operational process, the switching device can be to the operation of the host CPU
State is monitored, and according to the operating status of the host CPU, determines whether the host CPU needs replacing, when the host CPU
It when being replaced, selects at least one from CPU, opens itself and the selected interface channel between CPU, so that
The CPU from selection can replace the host CPU to be connected with the PCH, so as to close itself between the host CPU
Interface channel solve in the prior art to disconnect the connection between the host CPU and the PCH due to host CPU and PCH
It is connected and can not be realized in the case where computer not lower electricity in the case where computer not lower electricity the problem of plug host CPU
Host CPU is replaced, the influence caused by computer business when avoiding replacement host CPU.
It is a kind of switching device provided in an embodiment of the present invention such as Fig. 7, the processor switching device may include:
Processor 701, memory 702, system bus 704 and communication interface 705.Processor 701, memory 702 and logical
It connects by system bus 704 between letter interface 705 and completes mutual communication.
Processor 701 may be single or multiple core central processing unit, perhaps be specific integrated circuit or be configured
At the one or more integrated circuits for implementing the embodiment of the present invention.
Memory 702 can be high speed RAM memory, or nonvolatile memory (non-volatile
Memory), a for example, at least magnetic disk storage.
Memory 702 is used for computer executed instructions 703.Specifically, may include program in computer executed instructions 703
Code.
When processor switching device operation, processor 701 runs computer executed instructions 703, can execute Fig. 5
Or Fig. 6 it is one of any described in the method flow for realizing processor switching.
It will be recognized by those of ordinary skill in the art that the possibility implementation of various aspects of the invention or various aspects
It can be embodied as system, method or computer program product.Therefore, each aspect of the present invention or various aspects
Possible implementation can use complete hardware embodiment, complete software embodiment (including firmware, resident software etc.), or
The form of the embodiment of integration software and hardware aspect, collectively referred to herein as " circuit ", " module " or " system ".In addition,
The possibility implementation of each aspect of the present invention or various aspects can use the form of computer program product, computer journey
Sequence product refers to the computer readable program code of storage in computer-readable medium.
Computer-readable medium can be computer-readable signal media or computer readable storage medium.Computer can
Read storage medium including but not limited to electronics, magnetism, optics, electromagnetism, infrared or semiconductor system, equipment perhaps device or
It is above-mentioned any appropriately combined, such as random access memory (RAM), read-only memory (ROM), the read-only storage of erasable programmable
Device (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
Processor in computer reads the computer readable program code of storage in computer-readable medium, so that place
Reason device is able to carry out function action specified in the combination of each step or each step in flow charts；It generates and implements in block diagram
Each piece or each piece of combination specified in function action device.
Computer readable program code can execute on the user's computer completely, part is held on the user's computer
Row, as individual software package, part on the user's computer and part on the remote computer, or completely long-range
It is executed on computer or computer.It is also noted that in some alternative embodiments, each step or frame in flow charts
Each piece of function of indicating may not be occurred by the sequence indicated in figure in figure.For example, depending on related function, show in succession
Two steps or two blocks out may be actually executed substantially concurrently or these blocks sometimes may be by with opposite suitable
Sequence executes.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (20)
1. a kind of computer, which is characterized in that the computer includes multiple processors and platform controller, the multiple processing
For device by Quick Path Interconnect, the multiple processor includes primary processor and from processor；
The computer further includes switching device, and one end of the switching device is connected to the platform controller, the other end with
A plurality of interface channel is set between the multiple processor, in the computer starting, the switching device open itself with
Interface channel between the primary processor closes itself and the interface channel between processor, in the computer
In operational process, the switching device is determining that the primary processor need to for determining whether the primary processor needs replacing
It when replacing, selects at least one from processor, opens itself and the selected interface channel between processor；
The switching device be also used to itself and it is selected sampled from the interface channel opened between processor, root
According to sampled data, determine itself and it is selected whether worked normally from the interface channel opened between processor, if just
Often work then executes the operation of interface channel of the closing itself between the primary processor.
2. computer according to claim 1, which is characterized in that the switching device is specifically used for according to itself or institute
The operating status for stating the primary processor that the mainboard control unit of computer monitors, determines whether the primary processor needs
Replacement.
3. computer according to claim 1 or 2, which is characterized in that the switching device be also used to open itself with
Before the selected interface channel between processor, triggering interruption migration instruction, the interruption migration instruction is used for will
The interruption configuration information of the primary processor moves to the selected register from processor.
4. computer according to claim 1 or 2, which is characterized in that the switching device be also used to open itself with
Before the selected interface channel between processor, triggering process migration instruction, the process migration instruction is used for will
The task queue of the primary processor moves to the selected register from processor.
5. computer according to claim 1 or 2, which is characterized in that the switching device be also used to open itself with
Before the selected interface channel between processor, trigger port configuration-direct, the channel configuration-direct is for weight
The Quick Path Interconnect link between the multiple processor is newly configured, is configured to new master from processor for selected
Processor.
6. computer according to claim 1 or 2, which is characterized in that the switching device be also used to close itself with
After interface channel between the primary processor, indicate that the energy supply control module of the primary processor holds the primary processor
It is electrically operated under row.
7. a kind of method for realizing processor switching, which is characterized in that for including multiple processors, platform controller and switching
The computer of device, for the multiple processor by Quick Path Interconnect, the multiple processor includes primary processor and from
Manage device；
One end of the switching device is connected to the platform controller, is arranged between the other end and the multiple processor a plurality of
Interface channel；
The described method includes:
The switching device opens itself interface channel between the primary processor in the computer starting, closes
Itself and the interface channel between processor；
The switching device determines whether the primary processor needs replacing in the computer operational process, determining
When stating primary processor and needing replacing, selects at least one from processor, open itself and selected between processor
Interface channel；
The switching device to itself and it is selected sampled from the interface channel opened between processor, according to sampling
Data, determine itself and it is selected whether worked normally from the interface channel opened between processor, if work normally,
Then execute the operation of interface channel of the closing itself between the primary processor.
8. the method according to the description of claim 7 is characterized in that the switching device is in the computer operational process,
Determining whether the primary processor needs replacing includes:
The switching device monitors in the computer operational process according to the mainboard control unit of itself or the computer
The operating status of the primary processor arrived, determines whether the primary processor needs replacing.
9. method according to claim 7 or 8, which is characterized in that open itself and the selection in the switching device
Slave processor between interface channel before, the method also includes:
Migration instruction is interrupted in the switching device triggering, described to interrupt migration instruction for configuring the interruption of the primary processor
Information transfer is to the selected register from processor.
10. method according to claim 7 or 8, which is characterized in that open itself and the selection in the switching device
Slave processor between interface channel before, the method also includes:
Switching device triggering process migration instruction, the process migration instruction is for by the task queue of the primary processor
Move to the selected register from processor.
11. method according to claim 7 or 8, which is characterized in that open itself and the selection in the switching device
Slave processor between interface channel before, the method also includes:
The switching device trigger port configuration-direct, the channel configuration-direct for reconfigure the multiple processor it
Between Quick Path Interconnect link, new primary processor is configured to from processor by selected.
12. a kind of switching device, which is characterized in that described more for the computer including multiple processors and platform controller
For a processor by Quick Path Interconnect, the multiple processor includes primary processor and from processor；
Described device includes switch module and control module and sampling module；
One end of the switch module is connected to the platform controller, is arranged between the other end and the multiple processor a plurality of
Interface channel；
The control module is used in the computer operational process, determines whether the primary processor needs replacing；
The switch module is used in the computer starting, opens itself interface channel between the primary processor,
Itself and the interface channel between processor are closed, when determining that the primary processor needs replacing, selects at least one
It is a from processor, open itself and the selected interface channel between processor；
The sampling module be used for itself and it is selected sampled from the interface channel opened between processor, according to
Sampled data, determine the switch module and it is selected whether worked normally from the interface channel opened between processor,
If worked normally, the switch module executes the operation of interface channel of the closing itself between the primary processor.
13. device according to claim 12, which is characterized in that the control module be specifically used for itself or it is described
When the operating status for the primary processor that the mainboard control unit of computer monitors, determine whether the primary processor needs
Replacement.
14. device according to claim 12 or 13, which is characterized in that the control module be also used to open itself with
Before the selected interface channel between processor, triggering process migration instruction, the process migration instruction is used for will
The task queue of the primary processor moves to the selected register from processor.
15. device according to claim 12 or 13, which is characterized in that the control module be also used to open itself with
Before the selected interface channel between processor, triggering process migration instruction, the process migration instruction is used for will
The task queue of the primary processor moves to the selected register from processor.
16. device according to claim 12 or 13, which is characterized in that the control module be also used to open itself with
Before the selected interface channel between processor, trigger port configuration-direct, the channel configuration-direct is for weight
The Quick Path Interconnect link between the multiple processor is newly configured, is configured to new master from processor for selected
Processor.
17. device according to claim 12 or 13, which is characterized in that the control module is the mainboard of the computer
Control unit.
18. device according to claim 12 or 13, which is characterized in that the switch module integrated circuit or scene
Programmable gate array is realized.
19. a kind of switching device, which is characterized in that described device includes processor, memory, bus and communication interface；
For storing computer executed instructions, the processor is connect with the memory by the bus memory,
When switching device operation, the processor executes the computer executed instructions of the memory storage, so that institute
It states switching device and executes any method for realizing processor switching as claim in claims 7-11.
20. a kind of computer-readable medium, which is characterized in that including computer executed instructions, so that the processor of computer is held
When the row computer executed instructions, the computer executes any realization processor switching as claim in claims 7-11
Method.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/073100 WO2015135100A1 (en) | 2014-03-10 | 2014-03-10 | Method for switching processors, computer, and switching apparatus |
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| Publication Number | Publication Date |
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| CN105009086A CN105009086A (en) | 2015-10-28 |
| CN105009086B true CN105009086B (en) | 2019-01-18 |
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| EP3764234B1 (en) | 2016-10-31 | 2022-06-29 | Huawei Technologies Co., Ltd. | Method and enable apparatus for starting physical device |
| CN113392052B (en) * | 2021-06-11 | 2023-07-18 | 深圳市同泰怡信息技术有限公司 | BIOS system and method based on four-way server and computer readable storage medium |
| CN114938346B (en) * | 2022-05-13 | 2023-06-06 | 苏州盛科通信股份有限公司 | Method and device for realizing service fast switching by cooperation of chip and CPU |
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| CN105009086A (en) | 2015-10-28 |
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