I/O execution method for a virtual machine system and system therefor
    2.
    发明授权
    I/O execution method for a virtual machine system and system therefor 失效
    用于虚拟机系统及其系统的I / O执行方法

    公开(公告)号:US5392409A

    公开(公告)日:1995-02-21

    申请号:US851629

    申请日:1992-03-16

    IPC分类号: G06F9/455 G06F13/10 G06F12/00

    摘要: In a computer system having a central processing unit, a main storage and at least one I/O device, a plurality of operating systems (OS) can simultaneously run under the control of a control program. For executing an I/O instruction using a central processing unit, a plurality of resident areas of said main storage which do not overlap one another are assigned, under the control of the control program, to the plurality of OSs as main memories therefore, respectively. In responding to an I/O instruction issued by a running one of said plural OSs, an address of said main memory assigned to said running OS which participates in an I/Oo operation requested by said I/O instruction is determined without intervention of the control program, and the address is translated into an address of the main storage of the computer system without intervention of said control program. The I/O operation is then executed by using the address resulting from said address translation.

    摘要翻译: 在具有中央处理单元,主存储器和至少一个I / O设备的计算机系统中,多个操作系统(OS)可以在控制程序的控制下同时运行。 为了使用中央处理单元执行I / O指令,在控制程序的控制下,分别将不相互重叠的所述主存储器的多个驻留区域分别作为主存储器分配给作为主存储器的多个OS 。 在响应由所述多个OS中运行的一个OS发出的I / O指令时,确定分配给所述运行OS的所述主存储器的参与I / O指令请求的I / Oo操作的地址, 控制程序,并且该地址被转换成计算机系统的主存储器的地址,而不需要所述控制程序的干预。 然后通过使用由所述地址转换产生的地址来执行I / O操作。

    Address translation apparatus in virtual machine system using a space
identifier field for discriminating DATOFF (dynamic address translation
off) virtual machines
    3.
    发明授权
    Address translation apparatus in virtual machine system using a space identifier field for discriminating DATOFF (dynamic address translation off) virtual machines 失效
    虚拟机系统中的地址转换装置,使用空间识别器字段来区分DATOFF(动态地址转换关闭)虚拟机

    公开(公告)号:US5129071A

    公开(公告)日:1992-07-07

    申请号:US331756

    申请日:1989-04-03

    IPC分类号: G06F9/46 G06F12/10

    CPC分类号: G06F12/1036

    摘要: An address translation apparatus is provided which has an address translation look-aside buffer with an entry composed of a real address field, virtual machine identifier field and space identifier field. For the translation look-aside buffer entry to be used by a general virtual machine which uses a plurality of address spaces, a virtual machine identifier for discrimination of a general virtual machine is stored in the virtual machine identifier field, and information used in discriminating an address space is stored in the space identifier field. For the translation look-aside buffer entry to be used by a dynamic address translation off (DATOFF virtual) machine which uses a single address space, an identifier commonly assigned to a group of DATOFF virtual machines is stored in the virtual machine identifier field, and a control block address used in discriminating a DATOFF virtual machine is stored in the space identifier field.

    摘要翻译: 提供了一种地址转换装置,其具有地址转换后备缓冲器,其具有由实际地址字段,虚拟机标识符字段和空格标识符字段组成的条目。 对于由使用多个地址空间的通用虚拟机使用的翻译后备缓冲器条目,用于识别一般虚拟机的虚拟机标识符存储在虚拟机标识符字段中,并且用于区分 地址空间存储在空间标识符字段中。 对于使用单个地址空间的动态地址转换(DATOFF virtual)机器使用的翻译后备缓冲器条目,通常分配给一组DATOFF虚拟机的标识符存储在虚拟机标识符字段中,并且 用于区分DATOFF虚拟机的控制块地址被存储在空间标识符字段中。

    System for recovery from a virtual machine monitor failure with a
continuous guest dispatched to a nonguest mode
    4.
    发明授权
    System for recovery from a virtual machine monitor failure with a continuous guest dispatched to a nonguest mode 失效
    从虚拟机恢复的系统监视故障,并连续发送到非最终模式

    公开(公告)号:US5437033A

    公开(公告)日:1995-07-25

    申请号:US787074

    申请日:1991-11-04

    摘要: A system and method for continuous operation of a virtual machine system having operation modes including a guest mode in which virtual machines are operated and a nonguest mode in which a virtual machine monitor for controlling the virtual machines is operated. The continuous guest is a virtual machine which does not stop executing operation at the occurrence of a failure due to program error of the virtual machine monitor. A main storage is provided with two areas. One of the two areas is a continuous guest area having the same host absolute address in the nonguest mode as a guest absolute address in the guest mode, the area is used by the continuous guest which is a virtual machine which continues to operate on transition of the operation mode from the guest mode to the nonguest mode. The other is an area in which a program module for dispatching the continuous guest in response to the transition of the operation mode from the guest mode to the nonguest mode. The continuous guest is allocated to the guest area on transition of the operation mode from the guest mode to the nonguest mode. Occurrence of a failure due to a program error of the virtual machine monitor is detected and by starting the program module for dispatching the continuous guest in response to the detection of the occurrence of the failure, the operation of the continuous guest does not stop executing.

    摘要翻译: 一种用于在具有操作模式包括其中虚拟机操作的客人模式和其中被操作的虚拟机监视器,用于控制虚拟机的nonguest模式的虚拟机系统的连续运行的系统和方法。 连续的客人是在虚拟机不停止在故障发生在执行操作由于在虚拟机监视器的程序错误。 主要存储设有两个区域。 这两个区域中的一个是连续的访客区域,在访客模式中,作为访客绝对地址,在非最大模式中具有相同的主机绝对地址,该区域被连续访客使用,该连续访客是继续操作的虚拟机 从客人模式到非最终模式的操作模式。 另一个是用于响应于操作模式从访客模式转换到非最终模式而分发连续客户的程序模块的区域。 连续访客在从访客模式转换到非最终模式的过程中被分配给客户区域。 检测到由于虚拟机监视器的程序错误而导致的故障的发生,并且响应于检测到故障的发生而启动用于发送连续客户机的程序模块,连续客户机的操作不停止执行。

    Virtual machine system having an extended storage
    5.
    发明授权
    Virtual machine system having an extended storage 失效
    具有扩展存储的虚拟机系统

    公开(公告)号:US5341484A

    公开(公告)日:1994-08-23

    申请号:US476434

    申请日:1990-05-24

    IPC分类号: G06F12/06 G06F12/10 G06F12/00

    CPC分类号: G06F12/109 G06F12/0623

    摘要: A virtual machine system in which a plurality of operating systems (OS's) can run on one computer including a physical main storage (physical MS), and at least one physical extended storage (physical ES), each operating system (OS) of the OS's having a virtual MS on the physical MS and at least one virtual ES on the at least one physical ES. The system includes a first address translator for translating a virtual ES address designated by an instruction issued by one OS of the OS's on a virtual space generated by the one OS on one virtual ES of the at least one virtual ES of the one OS to a virtual physical ES address on the one virtual ES based on the virtual ES address and an address of an ES relocation table on the virtual MS of the one OS or an ES relocation register in the computer, the one virtual ES being on one physical ES of the at least one physical ES of the computer, and a second address translator for translating the virtual physical ES address to a physical ES address on the one physical ES based on the virtual physical ES address and a start address of the one virtual ES in the one physical ES.

    摘要翻译: PCT No.PCT / JP89 / 00983 Sec。 371日期1990年5月24日 102(e)日期1990年5月24日PCT提交1989年9月28日PCT公布。 公开号WO90 / 05338 日期:1990年5月17日。一种其中多个操作系统(OS)可以在包括物理主存储(物理MS)和至少一个物理扩展存储(物理ES))的计算机上运行的虚拟机系统,每个操作系统 (OS)在物理MS上具有虚拟MS并且在至少一个物理ES上具有至少一个虚拟ES。 该系统包括第一地址转换器,用于将由OS的一个OS发出的指令指定的虚拟ES地址在由该OS的至少一个虚拟ES的一个虚拟ES上由一个OS产生的虚拟空间上指定给 基于虚拟ES地址的一个虚拟ES上的虚拟物理ES地址和计算机中的一个OS的虚拟MS或ES重定位寄存器上的ES重定位表的地址,一个虚拟ES位于一个物理ES上 所述计算机的所述至少一个物理ES和第二地址转换器,用于基于所述虚拟物理ES地址和所述虚拟物理ES地址中的所述一个虚拟ES的起始地址将所述虚拟物理ES地址转换为所述一个物理ES上的物理ES地址 一个物理ES。

    I/O Execution method for a virtual machine system and system therefor
    6.
    发明授权
    I/O Execution method for a virtual machine system and system therefor 失效
    I / O虚拟机系统及其系统的执行方法

    公开(公告)号:US4885681A

    公开(公告)日:1989-12-05

    申请号:US691909

    申请日:1985-01-16

    摘要: In a virtual machine system (VMS) capable of concurrently running at least one operating system (OS) under one real computer system and a control program (VMCP) for controlling the VMS, the object is to reduce the overhead produced for simulating VM I/Os by direct I/O execution. A VM information area of a real sub-channel control block has a status field in which a flag indicating that the sub-channel is dedicated or not is contained. When the flag is "0", it means that the sub-channel is dedicated to the VM and the sub-channel scheduling by the VMCP is not necessary. As a real interruption priority order is dedicated to a VM, only I/O interruption requests of the VM are queued into the real interruption request queue of that dedicated priority order, and the mixing of VMs in that real interruption priority order is avoided. When an interruption control mask of an interruption priority order of the OS on the VM is "0" indicating that the interruption is not acceptable by the VM, the interruption control mask of the corresponding dedicated real interruption priority order is also "0" and the hardware interruption does not take place. Accordingly, the interruption is retained by the hardware and the I/O interruption retention for the VM by the VMCP is avoided.

    摘要翻译: 在能够在一个实际计算机系统下同时运行至少一个操作系统(OS)的虚拟机系统(VMS)和用于控制VMS的控制程序(VMCP)的情况下,目的是减少模拟VM I / Os通过直接I / O执行。 实际子信道控制块的VM信息区域具有包含表示子信道为专用的标志的状态字段。 当标志为“0”时,这意味着该子信道专用于该VM,并且该VMCP的子信道调度是不必要的。 由于真正的中断优先级顺序专用于VM,因此只有VM的I / O中断请求被排队到该专用优先级顺序的实际中断请求队列中,并且避免了该实际中断优先级顺序的VM的混合。 当VM上的OS的中断优先级顺序的中断控制掩码为“0”,表示VM不能接受中断时,相应的专用实际中断优先级顺序的中断控制掩码也为“0”,并且 硬件中断不会发生。 因此,中断由硬件保留,并且避免VMCP对VM的I / O中断保持。

    I/O execution method for a virtual machine system and system therefor
    7.
    发明授权
    I/O execution method for a virtual machine system and system therefor 失效
    虚拟机系统及其系统的I / O执行方法

    公开(公告)号:US5109489A

    公开(公告)日:1992-04-28

    申请号:US369535

    申请日:1989-06-21

    摘要: In a virtual machine system (VMS) capable of concurrently running at least one operating system (OS) under one real computer system and a control program (VMCP) for controlling the VMS, the object is to reduce the overhead produced for simulating VM I/Os by direct I/O execution. A VM information area of a real sub-channel control block has a status field in which a flag indicating that the sub-channel is dedicated or not is contained. When the flag is "1", it means that the sub-channel is dedicated to the VM and the sub-channel scheduling by the VMCP is not necessary. As a real interruption priority order is dedicated to a VM, only I/O interruption requests of the VM are queued into the real interruption request queue of that dedicated priority order, and the mixing of VMs in that real interruption priority order is avoided. When an interruption control mask of an interruption priority order of the OS on the VM is "0" indicating that the interruption is not acceptable by the VM, the interruption conrol mask of the corresponding dedicated real interruption priority order is also "0" and the hardware interruption does not take place. Accordingly, the interruption is retained by the hardware and the I/O interruption retention for the VM by the VMCP is avoided.

    Virtual machine system with vitual machine resetting store indicating
that virtual machine processed interrupt without virtual machine
control program intervention
    8.
    发明授权
    Virtual machine system with vitual machine resetting store indicating that virtual machine processed interrupt without virtual machine control program intervention 失效
    虚拟机系统与虚拟机复位存储器显示虚拟机处理中断,无虚拟机控制程序干预

    公开(公告)号:US5187802A

    公开(公告)日:1993-02-16

    申请号:US452240

    申请日:1989-12-18

    IPC分类号: G06F9/46 G06F9/455 G06F9/48

    摘要: In a virtual machine system in which a virtual machine directly executes operations by use of the hardware without an intervention from the virtual machine control program (VMCP), at an occurrence of an input/output interruption, the system sets to a storage an event that the input/output interruption has been accepted and reserved by the VMCP. When the virtual machine processes interruption information by means of the hardware without an intervention of the VMCP, the virtual machine resets the state of the storage. When the virtual machine is set to an interruptible state, control is passed to the VMCP. The VMCP tests to determine whether or not the virtual machine has reset the state of the storage, thereby judging an acceptability of the interruption.

    摘要翻译: 在虚拟机系统中虚拟机通过使用硬件直接执行操作而无需来自虚拟机控制程序(VMCP)的干预,在发生输入/输出中断时,系统将存储事件设置为存储 输入/输出中断已被VMCP接受并保留。 当虚拟机在没有VMCP干预的情况下通过硬件处理中断信息时,虚拟机重置存储器的状态。 当虚拟机设置为可中断状态时,控制将传递给VMCP。 VMCP测试以确定虚拟机是否已经重置存储器的状态,从而判断中断的可接受性。

    Virtual machine control method and virtual machine system
    9.
    发明授权
    Virtual machine control method and virtual machine system 失效
    虚拟机控制方法和虚拟机系统

    公开(公告)号:US5553291A

    公开(公告)日:1996-09-03

    申请号:US120472

    申请日:1993-09-14

    CPC分类号: G06F9/45533 G06F9/526

    摘要: A virtual machine control method for a supercomputer enables a plurality of virtual machines to use a vector processor. Control of the use of the vector processor is through the scalar processor. When a virtual machine requires use of the vector processor, it is first determined whether one of the other virtual machines operating systems is using the vector processor. If not, the scalar processor is dispatched to the operating system requesting use of the vector processor. If another virtual machine operating system is using the vector processor, then the operating system requesting use of the vector processor is placed in a wait state until the vector processor becomes free, whereupon the scalar processor is dispatched to the operating system that had been in the wait state. The condition of the vector processor being free can be communicated directly to the scalar processor without the intervention of the virtual machine monitor.

    摘要翻译: 用于超级计算机的虚拟机控制方法使多个虚拟机能够使用向量处理器。 矢量处理器的使用控制是通过标量处理器。 当虚拟机需要使用向量处理器时,首先确定其他虚拟机操作系统之一是否正在使用向量处理器。 如果不是,标量处理器被调度到操作系统,请求使用向量处理器。 如果另一个虚拟机操作系统正在使用向量处理器,则请求使用向量处理器的操作系统被置于等待状态,直到向量处理器变为空闲,然后标量处理器被发送到已经在 等待状态 矢量处理器的状态可以直接传递到标量处理器,而不需要虚拟机监视器的干预。

    Input-output control method in a virtual machine system
    10.
    发明授权
    Input-output control method in a virtual machine system 失效
    虚拟机系统中的输入输出控制方法

    公开(公告)号:US4887202A

    公开(公告)日:1989-12-12

    申请号:US890524

    申请日:1986-07-30

    IPC分类号: G06F9/46 G06F9/48 G06F13/10

    CPC分类号: G06F9/4843 G06F13/10

    摘要: An I/O control system in a virtual machine system has at least one virtual machine (VM) running under control of a virtual machine control program (VMCP) and has a direct I/O execution mode in which an I/O interruption to the I/O device dedicated by the running VM is directly executed without intervention of the VMCP and an indirect I/O execution mode in which the I/O interruption is simulated. The I/O control system comprises identification portion for identifying the I/O device requesting the switching to the direct I/O execution mode, judge portion for judging a mode switching condition and mode selection portion for selecting one of the two modes. If the VM which contemplates the direct execution has not yet dedicated the I/O device requesting the mode switching, it dedicates the I/O device, and if the VM has not yet dedicated an I/O interrupt subclass which controls the I/O interruption of the I/O device, it dedicates the subclass, and the I/O device in the indirect I/O execution mode is switched to the direct I/O execution mode.

    摘要翻译: 虚拟机系统中的I / O控制系统具有在虚拟机控制程序(VMCP)的控制下运行的至少一个虚拟机(VM),并且具有直接I / O执行模式,其中对 运行的VM专用的I / O设备直接执行,而不需要VMCP的干预和模拟I / O中断的间接I / O执行模式。 I / O控制系统包括用于识别请求切换到直接I / O执行模式的I / O设备的识别部分,用于判断模式切换条件的判断部分和用于选择两种模式之一的模式选择部分。 如果考虑到直接执行的VM尚未专门用于请求模式切换的I / O设备,则它专用于I / O设备,如果VM还没有专门用于控制I / O的I / O中断子类 中断I / O设备,它专用于子类,间接I / O执行模式中的I / O设备切换到直接I / O执行模式。