公开(公告)号：US20120117300A1

公开(公告)日：2012-05-10

申请号：US12959109

申请日：2010-12-02

Applicant: Erik C. Cota-Robles ,  Andy Glew ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Gilbert Neiger ,  Richard Uhlig

Inventor： Erik C. Cota-Robles ,  Andy Glew ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Gilbert Neiger ,  Richard Uhlig

IPC: G06F12/08

CPC classification number: G06F12/1027 ,  G06F9/30076 ,  G06F12/1036 ,  G06F2212/151

Abstract: One embodiment of the present invention is a technique to invalidate entries in a translation lookaside buffer (TLB). A TLB in a processor has a plurality of TLB entries. Each TLB entry is associated with a virtual machine extension (VMX) tag word indicating if the associated TLB entry is invalidated according to a processor mode when an invalidation operation is performed. The processor mode is one of execution in a virtual machine (VM) and execution not in a virtual machine. The invalidation operation belongs to a non-empty set of invalidation operations composed of a union of (1) a possibly empty set of operations that invalidate a variable number of TLB entries, (2) a possibly empty set of operations that invalidate exactly one TLB entry, (3) a possibly empty set of operations that invalidate the plurality of TLB entries, (4) a possibly empty set of operations that enable and disable use of virtual memory, and (5) a possibly empty set of operations that configure physical address size, page size or other virtual memory system behavior in a manner that changes the manner in which a physical machine interprets the TLB entries.

Abstract translation: 本发明的一个实施例是使翻译后备缓冲器（TLB）中的条目无效的技术。 处理器中的TLB具有多个TLB条目。 当执行无效操作时，每个TLB条目与虚拟机扩展（VMX）标签字相关联，指示相关联的TLB条目是否根据处理器模式而无效。 处理器模式是虚拟机（VM）中的执行之一，而不是虚拟机中的执行。 无效操作属于一个无效的无效操作集合，它由（1）可能为空的操作集合组合，使一组可变数量的TLB条目无效，（2）一组可能的空白操作，使一个TLB无效 条目，（3）使多个TLB条目无效的可能的一组操作，（4）启用和禁用虚拟存储器的使用的可能的一组可能的空操作，以及（5）配置物理的可能的一组操作 地址大小，页面大小或其他虚拟内存系统行为，以改变物理机器解释TLB条目的方式。

公开(公告)号：US07318141B2

公开(公告)日：2008-01-08

申请号：US10322003

申请日：2002-12-17

Applicant: Steve M. Bennett ,  Gilbert Neiger ,  Erik C. Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Richard A. Uhlig ,  Larry Smith ,  Dion Rodgers ,  Andrew Glew ,  Erich Boleyn

Inventor： Steve M. Bennett ,  Gilbert Neiger ,  Erik C. Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Richard A. Uhlig ,  Larry Smith ,  Dion Rodgers ,  Andrew Glew ,  Erich Boleyn

IPC: G06F12/06

CPC classification number: G06F9/45558 ,  G06F2009/45591

Abstract: Methods and systems are provided to control the execution of a virtual machine (VM). A VM Monitor (VMM) accesses VM Control Structures (VMCS) indirectly through access instructions passed to a processor. In one embodiment, the access instructions include VMCS component identifiers used by the processor to determine the appropriate storage location for the VMCS components. The processor identifies the appropriate storage location for the VMCS component within the processor storage or within memory.

Abstract translation: 提供了方法和系统来控制虚拟机（VM）的执行。 VM监视器（VMM）通过传递给处理器的访问指令间接访问VM控制结构（VMCS）。 在一个实施例中，访问指令包括由处理器用于确定VMCS组件的适当存储位置的VMCS组件标识符。 处理器识别处理器存储器或存储器内的VMCS组件的适当存储位置。

公开(公告)号：US07313669B2

公开(公告)日：2007-12-25

申请号：US11069889

申请日：2005-02-28

Applicant: Gilbert Neiger ,  Stephen Chou ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael Kozuch ,  Richard Uhlig ,  Sebastian Schoenberg

Inventor： Gilbert Neiger ,  Stephen Chou ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael Kozuch ,  Richard Uhlig ,  Sebastian Schoenberg

IPC: G06F12/00

CPC classification number: G06F9/45537 ,  G06F12/1036 ,  G06F12/1491

Abstract: In one embodiment, a method for supporting address translation in a virtual-machine environment includes creating a guest translation data structure to be used by a guest operating system for address translation operations, creating an active translation data structure based on the guest translation data structure, and periodically modifying the content of the active translation data structure to conform to the content of the guest translations data structure. The content of the active translation data structure is used by a processor to cache address translations in a translation-lookaside buffer (TLB).

Abstract translation: 在一个实施例中，一种用于在虚拟机环境中支持地址转换的方法包括：创建要由客户机操作系统用于地址转换操作的客户翻译数据结构，基于访客翻译数据结构创建活动翻译数据结构， 并且周期性地修改活动翻译数据结构的内容以符合客人翻译数据结构的内容。 处理器使用活动翻译数据结构的内容来缓存翻译后备缓冲器（TLB）中的地址转换。

公开(公告)号：US07305592B2

公开(公告)日：2007-12-04

申请号：US10882813

申请日：2004-06-30

Applicant: Gilbert Neiger ,  Andrew V. Anderson ,  Steven M. Bennett ,  Jason Brandt ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kägi ,  Sanjoy K. Mondal ,  Rajesh Parthasarathy ,  Dion Rodgers ,  Lawrence O. Smith ,  Richard A. Uhlig

Inventor： Gilbert Neiger ,  Andrew V. Anderson ,  Steven M. Bennett ,  Jason Brandt ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kägi ,  Sanjoy K. Mondal ,  Rajesh Parthasarathy ,  Dion Rodgers ,  Lawrence O. Smith ,  Richard A. Uhlig

IPC: G06F11/00

CPC classification number: G06F9/45533 ,  G06F11/0712 ,  G06F11/0775 ,  G06F11/0787 ,  G06F11/0793

Abstract: In one embodiment, information pertaining to a first fault occurring during operation of a virtual machine (VM) is stored in a first field. A second fault is detected while delivering the first fault to the VM, and a determination is made as to whether the second fault is associated with a transition of control to a virtual machine monitor (VMM). If this determination is positive, information pertaining to the second fault is stored in a second field, and control is transitioned to the VMM.

Abstract translation: 在一个实施例中，关于在虚拟机（VM）的操作期间发生的第一故障的信息被存储在第一字段中。 在向VM提供第一故障时检测到第二故障，并且确定第二故障是否与对虚拟机监视器（VMM）的控制转换相关联。 如果该确定是肯定的，则关于第二故障的信息被存储在第二场中，并且控制被转换到VMM。

公开(公告)号：US20060036791A1

公开(公告)日：2006-02-16

申请号：US11251282

申请日：2005-10-13

Applicant: Stalinselvaraj Jeyasingh ,  Andrew Anderson ,  Steven Bennett ,  Erik Cota-Robles ,  Alain Kagi ,  Gilbert Neiger ,  Richard Uhlig

Inventor： Stalinselvaraj Jeyasingh ,  Andrew Anderson ,  Steven Bennett ,  Erik Cota-Robles ,  Alain Kagi ,  Gilbert Neiger ,  Richard Uhlig

IPC: G06F13/24

CPC classification number: G06F13/24 ,  G06F9/45533 ,  G06F9/4812

Abstract: In one embodiment, an apparatus includes a set of multiplex blocks coupled with an interrupt controller and multiple interrupt request lines, and a virtual machine monitor block (VMM) coupled to the set of multiplex blocks. Each multiplex block corresponds to a distinct interrupt request line. Each multiplex block is to route the interrupt request signal received via the corresponding interrupt request line either to the interrupt controller or the VMM block depending on a current configuration value of this multiplex block.

Abstract translation: 在一个实施例中，装置包括与中断控制器和多个中断请求线耦合的一组多路复用块以及耦合到该多路复用块集合的虚拟机监视块（VMM）。 每个复用块对应于不同的中断请求行。 每个多路复用块将根据该多路复用块的当前配置值将经由相应的中断请求线接收到的中断请求信号发送到中断控制器或VMM块。

公开(公告)号：US20050240751A1

公开(公告)日：2005-10-27

申请号：US11069889

申请日：2005-02-28

Applicant: Gilbert Neiger ,  Stephen Chou ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael Kozuch ,  Richard Uhlig ,  Sebastian Schoenberg

Inventor： Gilbert Neiger ,  Stephen Chou ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael Kozuch ,  Richard Uhlig ,  Sebastian Schoenberg

IPC: G06F9/455 ,  G06F12/10 ,  G06F12/14 ,  G06F12/08

CPC classification number: G06F9/45537 ,  G06F12/1036 ,  G06F12/1491

Abstract: In one embodiment, a method for supporting address translation in a virtual-machine environment includes creating a guest translation data structure to be used by a guest operating system for address translation operations, creating an active translation data structure based on the guest translation data structure, and periodically modifying the content of the active translation data structure to conform to the content of the guest translations data structure. The content of the active translation data structure is used by a processor to cache address translations in a translation-lookaside buffer (TLB).

Abstract translation: 在一个实施例中，一种用于在虚拟机环境中支持地址转换的方法包括：创建要由客户机操作系统用于地址转换操作的客户翻译数据结构，基于访客翻译数据结构创建活动翻译数据结构， 并且周期性地修改活动翻译数据结构的内容以符合客人翻译数据结构的内容。 处理器使用活动翻译数据结构的内容来缓存翻译后备缓冲器（TLB）中的地址转换。

公开(公告)号：US07861245B2

公开(公告)日：2010-12-28

申请号：US12494110

申请日：2009-06-29

Applicant: Steven M. Bennett ,  Andrew V. Anderson ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Gilbert Neiger ,  Richard Uhlig

Inventor： Steven M. Bennett ,  Andrew V. Anderson ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Gilbert Neiger ,  Richard Uhlig

IPC: G06F9/455 ,  G06F13/24 ,  G06F3/048

CPC classification number: G06F9/45558 ,  G06F2009/45591

Abstract: In one embodiment, a method includes transitioning control to a virtual machine (VM) upon receiving a request from a virtual machine monitor (VMM), determining that the request to transition control is associated with a request to be informed of an open event window, performing an event window check to determine whether an even window of the VM is open, and transitioning control to the VMM if the event window check indicates that the event window of the VM is open.

Abstract translation: 在一个实施例中，一种方法包括：在接收到来自虚拟机监视器（VMM）的请求时，将控制转换到虚拟机（VM），确定转换控制请求与被通知打开事件窗口的请求相关联， 执行事件窗口检查以确定VM的偶数窗口是否打开，以及如果事件窗口检查指示VM的事件窗口打开，则将控制转换到VMM。

公开(公告)号：US07793286B2

公开(公告)日：2010-09-07

申请号：US10324591

申请日：2002-12-19

Applicant: Steven M. Bennett ,  Gilbert Neiger ,  Erik C. Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Richard A. Uhlig

Inventor： Steven M. Bennett ,  Gilbert Neiger ,  Erik C. Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Richard A. Uhlig

IPC: G06F9/46 ,  G06F9/455

CPC classification number: G06F9/45558 ,  G06F2009/4557

Abstract: Methods and systems are provided to control transitions between a virtual machine (VM) and Virtual Machine Monitor (VMM). A processor uses state action indicators to load and/or store associated elements of machine state before completing the transition. The state action indicators may be stored in a Virtual Machine Control Structure (VMCS), predetermined, and/or calculated dynamically. In some embodiments, the values loaded can be directly acquired from the VMCS, predetermined and/or calculated dynamically. In some embodiments, the values stored may be acquired directly from machine state, predetermined and/or calculated dynamically.

Abstract translation: 提供了方法和系统来控制虚拟机（VM）和虚拟机监视器（VMM）之间的转换。 在完成转换之前，处理器使用状态动作指示器来加载和/或存储机器状态的相关元件。 状态动作指示符可以存储在虚拟机控制结构（VMCS）中，预定的和/或动态地计算。 在一些实施例中，可以从VMCS直接获取加载的值，预先确定和/或动态地计算。 在一些实施例中，存储的值可以直接从机器状态获取，预定和/或动态地计算。

公开(公告)号：US07757231B2

公开(公告)日：2010-07-13

申请号：US11008911

申请日：2004-12-10

Applicant: Andrew V. Anderson ,  Steven M. Bennett ,  Erik Cota-Robles ,  Alain Kägi ,  Gilbert Neiger ,  Rajesh S. Madukkarumukumana ,  Sebastian Schoenberg ,  Richard Uhlig ,  Michael A. Rothman ,  Vincent J. Zimmer ,  Stalinselvaraj Jeyasingh

Inventor： Andrew V. Anderson ,  Steven M. Bennett ,  Erik Cota-Robles ,  Alain Kägi ,  Gilbert Neiger ,  Rajesh S. Madukkarumukumana ,  Sebastian Schoenberg ,  Richard Uhlig ,  Michael A. Rothman ,  Vincent J. Zimmer ,  Stalinselvaraj Jeyasingh

IPC: G06F9/455 ,  G06F9/46

CPC classification number: G06F9/45533

Abstract: In some embodiments, the invention involves a system to deprivilege components of a virtual machine monitor and enable deprivileged service virtual machines (SVMs) to handle selected trapped events. An embodiment of the invention is a hybrid VMM operating on a platform with hardware virtualization support. The hybrid VMM utilizes features from both hypervisor-based and host-based VMM architectures. In at least one embodiment, the functionality of a traditional VMM is partitioned into a small platform-dependent part called a micro-hypervisor (MH) and one or more platform-independent parts called service virtual machines (SVMs). The micro-hypervisor operates at a higher virtual machine (VM) privilege level than any SVM, while the SVM and other VMs may still have access to any instruction set architecture (ISA) privilege level. Other embodiments are described and claimed.

Abstract translation: 在一些实施例中，本发明涉及一种剥夺虚拟机监视器组件的系统，并使得被剥夺虚拟机的虚拟机（SVM）能够处理选定的被捕获的事件。 本发明的实施例是在具有硬件虚拟化支持的平台上运行的混合VMM。 混合VMM利用基于虚拟机管理程序和基于主机的VMM架构的功能。 在至少一个实施例中，传统VMM的功能被划分为称为微管理程序（MH）的小平台相关部分和称为服务虚拟机（SVM）的一个或多个平台无关部件。 微型管理程序在比任何SVM更高的虚拟机（VM）权限级别运行，而SVM和其他VM可能仍然可以访问任何指令集体系结构（ISA）特权级别。 描述和要求保护其他实施例。

公开(公告)号：US07191440B2

公开(公告)日：2007-03-13

申请号：US09931072

申请日：2001-08-15

Applicant: Erik Cota-Robles ,  Sebastian Schoenberg ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael Kozuch ,  Gilbert Neiger ,  Richard Uhlig

Inventor： Erik Cota-Robles ,  Sebastian Schoenberg ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael Kozuch ,  Gilbert Neiger ,  Richard Uhlig

IPC: G06F9/48 ,  G06F9/50 ,  G06F9/455

CPC classification number: G06F9/4881 ,  G06F9/45541 ,  G06F9/45558 ,  G06F11/3466 ,  G06F2009/45566 ,  G06F2009/45591 ,  G06F2201/805 ,  G06F2201/86 ,  G06F2201/88

Abstract: Transitions among schedulable entities executing in a computer system are tracked in computer hardware or in a virtual machine monitor. In one aspect, the schedulable entities are operating system processes and threads, virtual machines, and instruction streams executing on the hardware. In another aspect, the schedulable entities are processes or threads executing within the virtual machines under the control of the virtual machine monitor. The virtual machine monitor derives scheduling information from the transitions to enable a virtual machine system to guarantee adequate scheduling quality of service to real-time applications executing in virtual machines that contain both real-time and non-real-time applications. In still another aspect, a parent virtual machine monitor in a recursive virtualization system can use the scheduling information to schedule a child virtual machine monitor that controls multiple virtual machines.

Abstract translation: 在计算机系统中执行的可调度实体之间的转换在计算机硬件或虚拟机监视器中进行跟踪。 在一个方面，可调度实体是在硬件上执行的操作系统进程和线程，虚拟机和指令流。 在另一方面，可调度实体是在虚拟机监视器的控制下在虚拟机内执行的进程或线程。 虚拟机监视器从转换中导出调度信息，以使虚拟机系统能够保证对包含实时应用程序和非实时应用程序的虚拟机中执行的实时应用程序的适当调度服务质量。 在另一方面，递归虚拟化系统中的父虚拟机监视器可以使用调度信息来调度控制多个虚拟机的子虚拟机监视器。