公开(公告)号：US07124327B2

公开(公告)日：2006-10-17

申请号：US10184774

申请日：2002-06-29

Applicant: Steve Bennett ,  Andrew V. Anderson ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Gilbert Neiger ,  Richard Uhlig ,  Xiang Zou ,  Michael A. Kozuch

Inventor： Steve Bennett ,  Andrew V. Anderson ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Gilbert Neiger ,  Richard Uhlig ,  Xiang Zou ,  Michael A. Kozuch

IPC: G06F11/00

CPC classification number: G06F11/0775 ,  G06F9/45558 ,  G06F11/0712 ,  G06F2009/45587

Abstract: In one embodiment, fault information relating to a fault associated with the operation of guest software is received. Further, a determination is made as to whether the fault information satisfies one or more filtering criterion. If the determination is positive, control remains with the guest software and is not transferred to the virtual machine monitor (VMM).

Abstract translation: 在一个实施例中，接收到与客户软件的操作相关联的故障的故障信息。 此外，确定故障信息是否满足一个或多个过滤标准。 如果确定是肯定的，控制将保留在客户软件中，并且不会传输到虚拟机监视器（VMM）。

公开(公告)号：US20060130060A1

公开(公告)日：2006-06-15

申请号：US11008911

申请日：2004-12-10

Applicant: Andrew Anderson ,  Steven Bennett ,  Erik Cota-Robles ,  Alain Kagi ,  Gilbert Neiger ,  Rajesh Madukkarumukumana ,  Sebastian Schoenberg ,  Richard Uhlig ,  Michael Rothman ,  Vincent Zimmer ,  Stalinselvaraj Jeyasingh

Inventor： Andrew Anderson ,  Steven Bennett ,  Erik Cota-Robles ,  Alain Kagi ,  Gilbert Neiger ,  Rajesh Madukkarumukumana ,  Sebastian Schoenberg ,  Richard Uhlig ,  Michael Rothman ,  Vincent Zimmer ,  Stalinselvaraj Jeyasingh

IPC: G06F9/455

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：US07035963B2

公开(公告)日：2006-04-25

申请号：US09752587

申请日：2000-12-27

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: G06F9/45558 ,  G06F12/0284 ,  G06F12/109 ,  G06F2009/45583

Abstract: In one embodiment, a method for resolving address space conflicts includes detecting that a guest operating system attempts to access a region occupied by a first portion of a virtual machine monitor and relocating the first portion of the virtual machine monitor within the first address space to allow the guest operating system to access the region previously occupied by the first portion of the virtual machine monitor.

公开(公告)号：US20060005084A1

公开(公告)日：2006-01-05

申请号：US10882813

申请日：2004-06-30

Applicant: Gilbert Neiger ,  Andrew Anderson ,  Steven Bennett ,  Jason Brandt ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Sanjoy Mondal ,  Rajesh Parthasarathy ,  Dion Rodgers ,  Lawrence Smith ,  Richard Uhlig

Inventor： Gilbert Neiger ,  Andrew Anderson ,  Steven Bennett ,  Jason Brandt ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Sanjoy Mondal ,  Rajesh Parthasarathy ,  Dion Rodgers ,  Lawrence Smith ,  Richard 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：US20050080970A1

公开(公告)日：2005-04-14

申请号：US10676890

申请日：2003-09-30

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: G06F9/455 ,  G06F9/48 ,  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：US20050080937A1

公开(公告)日：2005-04-14

申请号：US10973678

申请日：2004-10-25

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

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

IPC: G06F12/10 ,  G06F3/00

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：US08543772B2

公开(公告)日：2013-09-24

申请号：US12959109

申请日：2010-12-02

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

Inventor： Eric 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：US07818808B1

公开(公告)日：2010-10-19

申请号：US09752134

申请日：2000-12-27

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

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

IPC: G06F9/455 ,  G06F21/00

CPC classification number: G06F12/145 ,  G06F9/45558 ,  G06F2009/45583

Abstract: In one embodiment, a processor mode is provided for guest software. The processor mode enables the guest software to operate at a privilege level intended by the guest software. When the guest software attempts to perform an operation restricted by the processor mode, the processor mode is exited to transfer control over the operation to a virtual-machine monitor, which runs outside this processor mode.

Abstract translation: 在一个实施例中，为客户软件提供处理器模式。 处理器模式使宾客软件能够以访客软件所规定的特权级别运行。 当客户软件尝试执行受处理器模式限制的操作时，退出处理器模式以将操作的控制转移到在该处理器模式之外运行的虚拟机监视器。

公开(公告)号：US07620949B2

公开(公告)日：2009-11-17

申请号：US10816233

申请日：2004-03-31

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 ,  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：US07356735B2

公开(公告)日：2008-04-08

申请号：US10814569

申请日：2004-03-30

Applicant: Steven M. Bennett ,  Andrew V. Anderson ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kägi ,  Gilbert Neiger ,  Richard Uhlig ,  Sanjoy K. Mondal ,  Jason Brandt

Inventor： Steven M. Bennett ,  Andrew V. Anderson ,  Erik Cota-Robles ,  Stalinselvaraj Jeyasingh ,  Alain Kägi ,  Gilbert Neiger ,  Richard Uhlig ,  Sanjoy K. Mondal ,  Jason Brandt

IPC: G06F11/00

CPC classification number: G06F11/3664 ,  G06F9/45558 ,  G06F2009/45579 ,  G06F2009/45591

Abstract: Methods and systems to provide support for single stepping a virtual machine in a virtual machine environment are disclosed. An exemplary method may include receiving a request to transition control to a virtual machine (VM) from a virtual machine monitor (VMM), determining that a single-stepping indicator is set to a single stepping value, and transitioning control to the VM. Further, if an execution of a first instruction in the VM completes successfully, control is transitioned to the VMM following the successful completion of the execution of the first instruction.

Abstract translation: 公开了在虚拟机环境中单步执行虚拟机的方法和系统。 示例性方法可以包括从虚拟机监视器（VMM）接收向虚拟机（VM）转换控制的请求，确定单步指示符被设置为单个步进值，并将控制转换到VM。 此外，如果VM中的第一指令的执行成功完成，则在成功完成第一指令的执行之后，将控制转换到VMM。