公开(公告)号：US5392409A

公开(公告)日：1995-02-21

申请号：US851629

申请日：1992-03-16

申请人： Hidenori Umeno ,  Takashige Kubo ,  Nobutaka Hagiwara ,  Hiroaki Sato ,  Hideo Sawamoto ,  Taro Inoue ,  Shunji Tanaka

发明人： Hidenori Umeno ,  Takashige Kubo ,  Nobutaka Hagiwara ,  Hiroaki Sato ,  Hideo Sawamoto ,  Taro Inoue ,  Shunji Tanaka

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

CPC分类号： G06F13/10 ,  G06F9/45558 ,  G06F2009/45579 ,  G06F2009/45583

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。

公开(公告)号：US4885681A

公开(公告)日：1989-12-05

申请号：US691909

申请日：1985-01-16

申请人： Hidenori Umeno ,  Takashige Kubo ,  Nobutaka Hagiwara ,  Hiroaki Sato ,  Hideo Sawamoto

发明人： Hidenori Umeno ,  Takashige Kubo ,  Nobutaka Hagiwara ,  Hiroaki Sato ,  Hideo Sawamoto

IPC分类号： G06F9/455 ,  G06F9/46 ,  G06F12/08 ,  G06F12/10 ,  G06F13/10

CPC分类号： G06F13/10 ,  G06F9/45558 ,  G06F2009/45579

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。

公开(公告)号：US5109489A

公开(公告)日：1992-04-28

申请号：US369535

申请日：1989-06-21

申请人： Hidenori Umeno ,  Takashige Kubo ,  Nobutaka Hagiwara ,  Hiroaki Sato ,  Hideo Sawamoto

发明人： Hidenori Umeno ,  Takashige Kubo ,  Nobutaka Hagiwara ,  Hiroaki Sato ,  Hideo Sawamoto

IPC分类号： G06F9/455 ,  G06F9/46 ,  G06F12/08 ,  G06F12/10 ,  G06F13/10

CPC分类号： G06F13/10 ,  G06F9/45558 ,  G06F2009/45579

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.

公开(公告)号：US5499379A

公开(公告)日：1996-03-12

申请号：US8842

申请日：1993-01-25

申请人： Shunji Tanaka ,  Toru Ohtsuki ,  Hiroaki Sato ,  Hideo Sawamoto ,  Ryo Yamagata ,  Masaya Watanabe ,  Hidenori Umeno ,  Masatoshi Haraguchi

发明人： Shunji Tanaka ,  Toru Ohtsuki ,  Hiroaki Sato ,  Hideo Sawamoto ,  Ryo Yamagata ,  Masaya Watanabe ,  Hidenori Umeno ,  Masatoshi Haraguchi

IPC分类号： G06F13/10 ,  G06F9/318 ,  G06F9/455 ,  G06F9/46 ,  G06F9/48 ,  G06F9/00

CPC分类号： G06F9/3017 ,  G06F9/45558 ,  G06F9/4812 ,  G06F2009/45579

摘要： A plural-OS run system in which a plurality of operating systems (OSs) capable of operating on machines of different architectures, respectively, are allowed to run on one bare machine under the control of one control program (CP) or one control means. The input/output instruction and input/output interrupt of the operating system capable of running on a machine of the same architecture as that of the bare machine are directly executed on the bare machine without need for translation of the format. The input/output instruction and the input/output interrupt of the operating system adapted to run on a machine of the architecture differing from that of the bare machine are allowed to be directly executed while translating the format.

摘要翻译： 一种多操作系统运行系统，其中可以在一个控制程序（CP）或一个控制装置的控制下，分别在不同架构的机器上操作的多个操作系统（OS）在一个裸机上运行。 能够在与裸机相同架构的机器上运行的操作系统的输入/输出指令和输入/输出中断在裸机上直接执行，无需转换格式。 允许在转换格式的同时直接执行适用于与裸机机架不同的架构的机器上运行的操作系统的输入/输出指令和输入/输出中断。

公开(公告)号：US5437033A

公开(公告)日：1995-07-25

申请号：US787074

申请日：1991-11-04

申请人： Taro Inoue ,  Hidenori Umeno ,  Shunji Tanaka ,  Tadashi Yamamoto ,  Toru Ohtsuki

发明人： Taro Inoue ,  Hidenori Umeno ,  Shunji Tanaka ,  Tadashi Yamamoto ,  Toru Ohtsuki

IPC分类号： G06F9/46 ,  G06F9/455 ,  G06F11/00 ,  G06F11/30 ,  G06F9/00

CPC分类号： G06F9/45533 ,  G06F11/1484 ,  G06F11/1438 ,  G06F2201/815

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。

公开(公告)号：US5386565A

公开(公告)日：1995-01-31

申请号：US640089

申请日：1991-01-11

申请人： Shunji Tanaka ,  Takayoshi Asai ,  Taro Inoue ,  Hidenori Umeno ,  Tsuyoshi Watanabe

发明人： Shunji Tanaka ,  Takayoshi Asai ,  Taro Inoue ,  Hidenori Umeno ,  Tsuyoshi Watanabe

IPC分类号： G06F11/34 ,  G06F11/36 ,  G06F12/10 ,  G06F11/00 ,  G06F11/30

CPC分类号： G06F11/3636 ,  G06F11/3466

摘要： An OS control method for controlling an operating system (OS) running in a computer system on which a plurality of OSs run and which includes an instruction processor, a control program for controlling running of a plurality of OSs, a main storage, an external storage device, and an address translation circuit. In the course of processing performed by the instruction processor, predetermined operation of the instruction processor is monitored to output trace data affixed with an address conforming to the running OS in accordance with predetermined conditions for the predetermined operation. Address for the running OS is translated into a real address on the main storage. A debugging assist unit outputs trace data to one of plural storing areas of the main storage corresponding to the running OS at the translated real address. In the state in which the storing area containing the real address on the main storage resulting from transaltion of the address for the running OS is paged out, the trace data for the running OS is outputted to a host trace area.

摘要翻译： 一种用于控制在其上运行多个OS的计算机系统中运行的操作系统（OS）的OS控制方法，其包括指令处理器，用于控制多个OS的运行的控制程序，主存储器，外部存储器 设备和地址转换电路。 在由指令处理器执行的处理过程中，监视指令处理器的预定操作，以根据预定操作的预定条件输出附加符合正在运行的OS的地址的跟踪数据。 正在运行的操作系统的地址被翻译成主存储上的一个实际地址。 调试辅助单元将跟踪数据输出到与所翻译的实际地址上的正在运行的OS相对应的主存储器的多个存储区域中的一个。 在将通过运行OS的地址所产生的主存储器上的实际地址的存储区域分页的状态下，将运行的OS的跟踪数据输出到主机跟踪区域。

公开(公告)号：US5369750A

公开(公告)日：1994-11-29

申请号：US743754

申请日：1991-08-12

申请人： Taro Inoue ,  Hidenori Umeno ,  Shunji Tanaka ,  Tsuyoshi Watanabe

发明人： Taro Inoue ,  Hidenori Umeno ,  Shunji Tanaka ,  Tsuyoshi Watanabe

IPC分类号： G06F9/46 ,  G06F12/02 ,  G06F12/10 ,  G06F12/00

CPC分类号： G06F12/0284

摘要： A method and an apparatus for configuring multiple absolute address spaces are disclosed which simultaneously operate a plurality of virtual machines (VMs) respectively having operating systems on a single real computer by allocating a plurality of logical address spaces to an absolute address space. A different absolute address space is allocated to each of the VMs, whereby the respective VMs can access a main storage with a designated address without adding a constant to the designated address.

摘要翻译： 公开了一种用于配置多个绝对地址空间的方法和装置，其通过向绝对地址空间分配多个逻辑地址空间来同时操作分别具有单个实际计算机上的操作系统的多个虚拟机（VM）。 将不同的绝对地址空间分配给每个VM，由此相应的VM可以使用指定地址访问主存储，而不向该指定地址添加常量。

公开(公告)号：US5129071A

公开(公告)日：1992-07-07

申请号：US331756

申请日：1989-04-03

申请人： Ryo Yamagata ,  Hideo Sawamoto ,  Hidenori Umeno

发明人： Ryo Yamagata ,  Hideo Sawamoto ,  Hidenori Umeno

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。

公开(公告)号：US4802084A

公开(公告)日：1989-01-31

申请号：US827545

申请日：1986-02-10

申请人： Hiroshi Ikegaya ,  Hidenori Umeno ,  Takashige Kubo ,  Yoshio Ukai ,  Nobuyoshi Sugama

发明人： Hiroshi Ikegaya ,  Hidenori Umeno ,  Takashige Kubo ,  Yoshio Ukai ,  Nobuyoshi Sugama

IPC分类号： G06F12/10 ,  G06F12/06

CPC分类号： G06F12/1036

摘要： In order to carry out address translation which can reduce an overhead of the VMCP to support a virtual storage, a flag indicating a common segment in the virtual machine and a system identifier are held in a TLB, and a VM identifier is held in a segment table origin stack. For the common segment, a current VM identifier is compared with the VM identifier in the segment table origin stack to determine validity of a TLB entry, and for a non-common segment, a system identifier read from the segment table origin stack is compared with the system identifier in the TLB entry to determine validity of the TLB entry.

摘要翻译： 为了执行可以减少VMCP的开销以支持虚拟存储的地址转换，在TLB中保持指示虚拟机中的公共段的标志和系统标识符，并且将VM标识符保存在段 表起源栈。 对于公共段，将当前VM标识符与段表原始栈中的VM标识符进行比较，以确定TLB条目的有效性，并且对于非公共段，从段表原始堆栈读取的系统标识符与 TLB条目中的系统标识符，以确定TLB条目的有效性。

公开(公告)号：US5625794A

公开(公告)日：1997-04-29

申请号：US021664

申请日：1993-02-24

申请人： Taro Inoue ,  Hidenori Umeno ,  Sadasaburo Kanai ,  Kazuo Imai ,  Yoshiaki Shinmura

发明人： Taro Inoue ,  Hidenori Umeno ,  Sadasaburo Kanai ,  Kazuo Imai ,  Yoshiaki Shinmura

IPC分类号： G06F12/08 ,  G06F12/12 ,  G06F13/16

CPC分类号： G06F12/0866 ,  G06F12/0888

摘要： A cache mode selection method and system sets to a cache load inhibit mode a cache mode used for a random access dataset of lower access hit ratio if use ratio of a data transmission path exceeds beyond an upper use ratio limit. It also sets to the cache load inhibit mode the cache mode used by parts of a sequential access dataset. These make it possible to select a proper cache mode depending on state of a load dynamically to prevent an I/O response from decreasing so that the hit ratio can be increased.

摘要翻译： 高速缓存模式选择方法和系统将数据传输路径的使用比例超过上限使用比率限制​​，设置为高速缓存负载禁止模式，用于具有较低访问命中率的随机访问数据集的高速缓存模式。 它还将缓存装载禁止模式设置为顺序访问数据集的部分所使用的缓存模式。 这些可以根据负载的状态动态地选择适当的高速缓存模式，以防止I / O响应减少，从而可以增加命中率。