JPH03252829A - Test system for virtual computer - Google Patents

Abstract

PURPOSE:To easily decide in which of the hardware and a VM monitor the cause of a fault is present by performing the test of a virtual computer while copying the self-diagnostic program included in the VM monitor into a VM space and confirming the propriety of the processing of the VM monitor. CONSTITUTION:When an instruction that could not be directly executed occurs during the execution of a test program loaded into a VM space 8, this fact is informed to a VM monitor 7 with an interruption. Receiving this information, the monitor 7 checks the propriety of the interruption and simulates the instruction after the propriety of the interruption is confirmed. Simultaneously, the processing propriety of the monitor 7 is confirmed after copying a self-diagnostic program 7-2 included in the monitor 7. Meanwhile a virtual computer is tested. Thus it is possible to easily decide at the occurrence of a fault whether the hardware or the monitor 7 is the cause factor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a test method for testing a virtual meter Xll.

3. Detailed description of the invention [I! [Summary] [4 Towns to be Solved by Conventional Technology and Inventions Conventionally, diagnosis (testing) of virtual computer systems has been carried out by individually creating test programs corresponding to the mechanisms of the virtual 3EIl, or by issuing instructions. Tests were conducted by running test programs under a VM monitor that had a mechanism to simulate interrupts. In the former case, it is necessary to create a test program every time the architecture of the virtual machine mechanism is changed or added, and it becomes difficult to perform system tests with multiple VMs in a large-scale device configuration. 8B! There is. The latter does not actively check logical contradictions in the VM monitor, and as a result, the VM
It is necessary for a test program running in a room to detect an error, and there is a problem in that it is difficult to determine whether the cause of the error is in the hardware or in the VM monitor communication.

According to the present invention, it is possible to check the accuracy of the hardware of the virtual metrology xvava structure while running the test program on the VM space of the virtual metrology a+ system! The five objectives are to carry out tests while doing so.

[Means to solve problems]

FIG. 1 shows a basic configuration diagram of the present invention.

In the first test, the VM 8 is a space (guest space) in which a test program is loaded and a test is performed.

The VM monitor 7, when notified by an interrupt from the VM space 3, checks the validity of the interrupt and simulates an instruction when the amount is correct.

The self #ll'a program 7-2 is a program that verifies the validity of processing in the VM monitor 7 or the copied VM space mB.

[Effect]

As shown in Fig. 3, when a test program is loaded into the VM space 8 and an instruction that cannot be directly executed is encountered during execution, the present invention notifies the VM monitor 7 by an interrupt and receives this notification. The VM monitor 7 checks the validity of the interrupt and the instruction is simulated.
The test is performed by copying the data to the VM monitor 8 and confirming the correctness of the processing by the VM monitor 7.

Therefore, it is possible to perform a test while checking the accuracy of the hardware of the virtual computing system while executing the test program on the VM space rRa of the virtual computing system.

[Actual*fl1 Next, the configuration and operation of one embodiment of the present invention will be explained in detail using FIGS. 1 to 3.

In FIG. 1, the central processing is mainly ! Various processes are performed according to programs loaded onto the memory f4.

The virtual machine) Eall structure 2 is a mechanism for configuring the virtual machine Xll11 system.

The memory Ill1mf3 accepts access requests from the central processing unit l and accesses the main memory f4.

The main storage device 4 includes a VM monitor (yk storage space) 7, a VM
! This is a storage device for providing an fm (guest space) 8.

The channel device 5 transfers data between the input/output VT device 6 and the memory device 3.

The input/output W unit 6 is an input/output device such as a magnetic tape V device, an FTR, a DVD disk device, or a hard disk device.

The VM monitor (unloaded space) 7 is composed of a diagnostic unit 7-1 that checks the validity of an interrupt when notified by an interrupt from the VM space 8, a self-diagnosis program 7-2 that performs self-diagnosis, and the like. It is something that

VM space 1m (guest space E) 8 is a virtual space,
M! It is composed of fffl (t> to VM room space fl).

The operation of the configuration shown in FIG. 1 will be explained.

(1) VM monitor 7 is VM'! ! ! View (1) or VM
An air browser (B) is installed, and the test program is transferred from the input/output device 6 to the IAIVM empty [8 (VM room space 1) on the device 4 via the channel device W5 and the memory IGM device W3.
The test program is loaded into the M space (ω>). Then, the test program loaded into the VM space E8 is started and executed.

(2) When a test program is executed on the VM space 8 and an instruction that cannot be directly executed is encountered, it is sent to the 7M monitor 7 by an interrupt. (I!I'll do it.)

((8) The diagnostic unit 7-1 of the 7M monitor 7 checks the runner nature of the notified interrupt, etc., and when the amount is correct, simulates the command.

(4) Copy the self-diagnosis program 7-2 in the VM monitor 7 to the VM space 8, execute it, and check the validity of the processing by the 7M monitor 7! do.

Through the above processing, while testing by running the test program on the VM space 8, it is possible to determine whether the cause of the failure is in the hardware of the virtual computing micromechanism or the 7M monitor 7.
Recognition is reaccreditation.

Next, 2nd v! J The operation of the configuration diagram of one embodiment of the present invention is fs
S Figure 70 - A detailed explanation will be given in accordance with the order shown in the chart.

Referring to FIG. 3, ① starts the VM. This means that the VM monitor 7 in FIG. 2 starts the test program loaded on the VM space (1).

@ executes the test program.

@ is in VM! [This is because the test program on VMvg(1) issues an instruction that cannot be executed directly.
Issue instructions that cannot be directly executed in M space. Correspondingly, the 7M monitor 7 is requested to execute this instruction by an interrupt.

[Phase] takes out the instruction code when the 7M monitor 7 is interrupted.

[Phase] examines the instruction code.

@If the result of checking with ■ is an unconditional interrupt instruction, ■
to simulate the instruction.

If the result of checking in ■ is an instruction with an interrupt specification, and furthermore, if it turns out that an interrupt specification has been made for the 7M monitor 7 in [stock] (when @ is YES and it is legal), then [ On the other hand, when it turns out that the interrupt specification for 7M monitor 7 is not specified in [phase] (0 (2) No and an error occurs), a hardware error is generated with @. and notify the operator.

@ performs VM dispatch.

In [phase], the VM space 8 to which control has been handed over at [stock] performs W1 verification of the execution result of the command. At this time, the self-diagnosis program 7-2 of the 7M monitor 7 is copied to the VM space 8. execute,
Tests are performed on the instructions that interrupt the 7M monitor 7 and on the interrupts, thereby confirming that the simulation)th operation on the 7M monitor 7 was performed successfully! Acknowledging this is inversion. In this way, by using the 7M monitor 7, when an error occurs, it is possible to immediately know whether the cause lies in the hardware of the virtual calculation W* structure or in the 7M monitor 7.

[Effect of the Invention J As explained above, according to the present invention, the VM′! of the virtual computer XIl system! ! Execute the test program on 2B to perform the test), 1) 7 inserted from the VM space 8
The M monitor 7 checks and simulates the validity of instructions, interrupts, etc., and also copies the self-diagnosis program to the VM space 8 to confirm the validity of the processing of the 7M monitor 7. , it is possible to test the virtual machine IIm on the VM virtual machine while confirming the validity of the hardware of the virtual computing mechanism. Thereby, when a failure occurs, it is possible to easily determine which of the 8-Fware and the 7M monitor 7 is the cause of the failure.

[Brief explanation of drawings]

FIG. 1 shows the basic configuration of the present invention, FIG. 2 shows the configuration of one embodiment of the present invention, and FIG. 3 shows a flowchart explaining the operation of the present invention. In the figure, 1 is the central processing unit, 2 is the virtual computing am structure, 4 is the main storage device, 7 is the VM monitor (host space), 7-1 is the diagnostic unit, 7-2 is the self-diagnosis program, and 8 is the VM empty Represents the guest space. Patent work hole Fujido Co., Ltd.

Claims (1)

[Claims] In a test method that tests a virtual machine, when a test program is loaded into the VM space (8) and an instruction that cannot be directly executed is encountered during execution, the VM monitor (7)
The VM monitor (7) that receives this notification checks the validity of the interrupt and simulates the instruction when it is valid, and also executes the self-diagnosis program (7-) in the VM monitor (7). 2) is copied to a VM space (8) and the test is performed while confirming the validity of the processing of the VM monitor (7).