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1. 发明授权

US07624240B1 Separate swap files corresponding to different virtual machines in a host computer system 有权
标题翻译：在主机系统中分离与不同虚拟机对应的交换文件
公开(公告)号：US07624240B1
公开(公告)日：2009-11-24
申请号：US11582734
申请日：2006-10-17
申请人： Osten Kit Colbert , Carl Waldspurger , Xiaoxin Chen , Anil Rao
发明人： Osten Kit Colbert , Carl Waldspurger , Xiaoxin Chen , Anil Rao
IPC分类号： G06F12/00
CPC分类号： G06F12/08 , G06F9/45558 , G06F9/4856 , G06F2009/4557 , G06F2009/45583
摘要： A swap space is provided for a host computer system, where the swap space includes a plurality of swap files with each individual swap file for swapping data only for a single corresponding virtual machine (VM). The per-VM swap space is used solely by the single, corresponding VM, such that only that particular VM's memory is allowed to be swapped out to the swap file.
摘要翻译：为主机计算机系统提供交换空间，其中交换空间包括多个交换文件，每个交换文件具有用于仅为单个对应的虚拟机（VM）交换数据的每个单独的交换文件。每个VM交换空间仅由单个对应的VM使用，以便只允许该特定VM的内存被交换到交换文件。

2. 发明申请

US20100023565A1 Separate Swap Files Corresponding to Different Virtual Machines in a Host Computer System 有权
标题翻译：在主机计算机系统中对应于不同虚拟机的单独交换文件
公开(公告)号：US20100023565A1
公开(公告)日：2010-01-28
申请号：US12576190
申请日：2009-10-08
申请人： Osten Kit COLBERT , Carl Waldspurger , Xiaoxin Chen , Anil Rao
发明人： Osten Kit COLBERT , Carl Waldspurger , Xiaoxin Chen , Anil Rao
IPC分类号： G06F12/00 , G06F9/455 , G06F12/16
CPC分类号： G06F12/08 , G06F9/45558 , G06F9/4856 , G06F2009/4557 , G06F2009/45583
摘要： A swap space is provided for a host computer system, where the swap space includes a plurality of swap files with each individual swap file for swapping data only for a single corresponding virtual machine (VM). The per-VM swap space is used solely by the single, corresponding VM, such that only that particular VM's memory is allowed to be swapped out to the swap file.
摘要翻译：为主机计算机系统提供交换空间，其中交换空间包括多个交换文件，每个交换文件具有用于仅为单个对应的虚拟机（VM）交换数据的每个单独的交换文件。每个VM交换空间仅由单个对应的VM使用，以便只允许该特定VM的内存被交换到交换文件。

3. 发明授权

US07925850B1 Page signature disambiguation for increasing the efficiency of virtual machine migration in shared-page virtualized computer systems 有权
标题翻译：页签名消歧以提高共享页面虚拟化计算机系统中虚拟机迁移的效率
公开(公告)号：US07925850B1
公开(公告)日：2011-04-12
申请号：US11676224
申请日：2007-02-16
申请人： Carl Waldspurger , Osten Kit Colbert , Xiaoxin Chen , Rajesh Venkatasubramanian
发明人： Carl Waldspurger , Osten Kit Colbert , Xiaoxin Chen , Rajesh Venkatasubramanian
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F9/4856
摘要： A system for increasing the efficiency of migrating, at least in part, a virtual machine from a source host to a destination host is described wherein the content of one or more portions of the address space of the virtual machine are each uniquely associated at the source host with a signature that may collide, absent disambiguation, with different content at the destination host. Code in both the source and destination hosts disambiguates the signature(s) so that each disambiguated signature may be uniquely associated with content at the destination host, and so that collisions with different content are avoided at the destination host. Logic is configured to determine whether the content uniquely associated with a disambiguated signature at the destination host is already present in the destination host memory, and, if so, to back one or more portions of the address space of the virtual machine having this content with one or more portions of the destination host memory already holding this content.
摘要翻译：描述了一种用于提高至少部分地将虚拟机从源主机迁移到目的地主机的效率的系统，其中虚拟机的地址空间的一个或多个部分的内容每个在源处唯一地相关联主机具有可能与目标主机不同的内容相冲突的缺席消息。源主机和目标主机中的代码消除签名，使得每个消歧签名可以与目的主机的内容唯一相关联，并且使得在目的主机处避免与不同内容的冲突。逻辑被配置为确定目的地主机上与消歧签名唯一相关联的内容是否已经存在于目的主机存储器中，并且如果是，则将具有该内容的虚拟机的地址空间的一个或多个部分返回到目的地主机存储器的一个或多个部分已经保存该内容。

4. 发明授权

US08099568B2 Separate swap files corresponding to different virtual machines in a host computer system 有权
标题翻译：在主机系统中分离与不同虚拟机对应的交换文件
公开(公告)号：US08099568B2
公开(公告)日：2012-01-17
申请号：US12576190
申请日：2009-10-08
申请人： Osten Kit Colbert , Carl A. Waldspurger , Xiaoxin Chen , Anil Rao
发明人： Osten Kit Colbert , Carl A. Waldspurger , Xiaoxin Chen , Anil Rao
IPC分类号： G06F12/00 , G06F9/46
CPC分类号： G06F12/08 , G06F9/45558 , G06F9/4856 , G06F2009/4557 , G06F2009/45583
摘要： A swap space is provided for a host computer system, where the swap space includes a plurality of swap files with each individual swap file for swapping data only for a single corresponding virtual machine (VM). The per-VM swap space is used solely by the single, corresponding VM, such that only that particular VM's memory is allowed to be swapped out to the swap file.
摘要翻译：为主机计算机系统提供交换空间，其中交换空间包括多个交换文件，每个交换文件具有用于仅为单个对应的虚拟机（VM）交换数据的每个单独的交换文件。每个VM交换空间仅由单个对应的VM使用，以便只允许该特定VM的内存被交换到交换文件。

5. 发明授权

US08015367B1 Memory management methods in a computer system with shared memory mappings 有权
标题翻译：具有共享内存映射的计算机系统中的内存管理方法
公开(公告)号：US08015367B1
公开(公告)日：2011-09-06
申请号：US11676151
申请日：2007-02-16
申请人： Anil Rao , Carl Waldspurger , Xiaoxin Chen
发明人： Anil Rao , Carl Waldspurger , Xiaoxin Chen
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/121 , G06F12/109 , G06F2212/656
摘要： A host computer system is configured to present each of multiple resident contexts with an address space that may be mapped, at least in part, to corresponding portions of a host memory. The address space of a selected context is sampled, and, for each of a plurality of sampled portions of the address space of the selected context that are backed by a corresponding portion of host memory, a count of the number of portions of address spaces of any contexts that are backed by the same portion of the host memory is obtained. A metric is then computed as a function of the count. A decision about swapping out or reclaiming the allocation of the memory of the contexts is based on the metric. The metric is preferably a function of a mean (such as harmonic, geometric or arithmetic) or median of the counts for each context.
摘要翻译：主计算机系统被配置为向多个驻留上下文中的每一个提供可至少部分地映射到主机存储器的对应部分的地址空间。对所选择的上下文的地址空间进行采样，并且对于由主机存储器的对应部分支持的所选择的上下文的地址空间的多个采样部分中的每一个，对于所选择的上下文的地址空间的部分的数量的计数获得由主机存储器的相同部分支持的任何上下文。然后计算度量作为计数的函数。关于交换或回收上下文存储器的分配的决定基于度量。该度量优选地是每个上下文的计数的平均值（诸如谐波，几何或算术）或计数的中值的函数。

6. 发明授权

US08060883B1 System for managing and providing expandable resource reservations in a tree hierarchy 有权
标题翻译：用于在树状层次结构中管理和提供可扩展资源预留的系统
公开(公告)号：US08060883B1
公开(公告)日：2011-11-15
申请号：US11707416
申请日：2007-02-16
申请人： Anil Rao , Carl Waldspurger , Xiaoxin Chen
发明人： Anil Rao , Carl Waldspurger , Xiaoxin Chen
IPC分类号： G06F9/46 , G06F15/173
CPC分类号： G06F9/5077
摘要： Described herein are approaches to managing expandable resource reservations. In one approach, a method is described in which an attempt is made to change a resource reservation from a first amount to a second amount. The second amount is examined to determine whether it exceeds a reservation limit. The second amount is compared with available resources, and reserved.
摘要翻译：这里描述了管理可扩展资源预留的方法。在一种方法中，描述了一种尝试将资源预留从第一量改变为第二量的方法。检查第二个数量以确定它是否超过预定限制。第二个数量与可用资源进行比较，并保留。

7. 发明授权

US07702843B1 Determining memory conditions in a virtual machine 有权
标题翻译：确定虚拟机中的内存条件
公开(公告)号：US07702843B1
公开(公告)日：2010-04-20
申请号：US11525561
申请日：2006-09-21
申请人： Xiaoxin Chen , Carl Waldspurger , Anil Rao
发明人： Xiaoxin Chen , Carl Waldspurger , Anil Rao
IPC分类号： G06F21/00 , G06F12/00 , G06F9/455
CPC分类号： G06F9/45545 , G06F9/45533 , G06F9/45558 , G06F9/5016 , G06F9/5077 , G06F12/023 , G06F12/08 , G06F12/109 , G06F2009/45583 , G06F2209/508 , G06F2212/151
摘要： Memory assigned to a virtual machine is reclaimed. A resource reservation application running as a guest application on the virtual machine reserves a location in guest virtual memory. The corresponding physical memory can be reclaimed and allocated to another virtual machine. The resource reservation application allows detection of guest virtual memory page-out by the guest operating system. Measuring guest virtual memory page-out is useful for determining memory conditions inside the guest operating system. Given determined memory conditions, memory allocation and reclaiming can be used control memory conditions. Memory conditions in the virtual machine can be controlled with the objective of achieving some target memory conditions.
摘要翻译：回收分配给虚拟机的内存。在虚拟机上作为访客应用程序运行的资源预留应用程序在guest虚拟机中保留位置。相应的物理内存可以被回收并分配给另一个虚拟机。资源预留应用程序允许由客户操作系统检测访客虚拟存储器页面输出。测量访客虚拟内存页面输出对于确定客户机操作系统中的内存条件非常有用。给定确定的内存条件，内存分配和回收可以用于控制内存条件。可以通过实现一些目标内存条件来控制虚拟机中的内存条件。

8. 发明授权

US08095931B1 Controlling memory conditions in a virtual machine 有权
标题翻译：控制虚拟机中的内存条件
公开(公告)号：US08095931B1
公开(公告)日：2012-01-10
申请号：US11525373
申请日：2006-09-21
申请人： Xiaoxin Chen , Carl Waldspurger , Anil Rao
发明人： Xiaoxin Chen , Carl Waldspurger , Anil Rao
IPC分类号： G06F9/46
CPC分类号： G06F9/45545 , G06F9/45533 , G06F9/45558 , G06F9/5016 , G06F9/5077 , G06F12/023 , G06F12/08 , G06F12/109 , G06F2009/45583 , G06F2209/508 , G06F2212/151
摘要： Memory assigned to a virtual machine is reclaimed. A resource reservation application running as a guest application on the virtual machine reserves a location in guest virtual memory. The corresponding physical memory can be reclaimed and allocated to another virtual machine. The resource reservation application allows detection of guest virtual memory page-out by the guest operating system. Measuring guest virtual memory page-out is useful for determining memory conditions inside the guest operating system. Given determined memory conditions, memory allocation and reclaiming can be used control memory conditions. Memory conditions in the virtual machine can be controlled with the objective of achieving some target memory conditions.
摘要翻译：回收分配给虚拟机的内存。在虚拟机上作为访客应用程序运行的资源预留应用程序在guest虚拟机中保留位置。相应的物理内存可以被回收并分配给另一个虚拟机。资源预留应用程序允许由客户操作系统检测访客虚拟存储器页面输出。测量访客虚拟内存页面输出对于确定客户机操作系统中的内存条件非常有用。给定确定的内存条件，内存分配和回收可以用于控制内存条件。可以通过实现一些目标内存条件来控制虚拟机中的内存条件。

9. 发明授权

US07716446B1 System and method for cooperative virtual machine memory scheduling 有权
标题翻译：协同虚拟机内存调度的系统和方法
公开(公告)号：US07716446B1
公开(公告)日：2010-05-11
申请号：US11525607
申请日：2006-09-21
申请人： Xiaoxin Chen , Carl Waldspurger , Anil Rao
发明人： Xiaoxin Chen , Carl Waldspurger , Anil Rao
IPC分类号： G06F13/00 , G06F13/28 , G06F9/46
CPC分类号： G06F9/45545 , G06F9/45533 , G06F9/45558 , G06F9/5016 , G06F9/5077 , G06F12/023 , G06F12/08 , G06F12/109 , G06F2009/45583 , G06F2209/508 , G06F2212/151
摘要： Memory assigned to a virtual machine is reclaimed. A resource reservation application running as a guest application on the virtual machine reserves a location in guest virtual memory. The corresponding physical memory can be reclaimed and allocated to another virtual machine. The resource reservation application allows detection of guest virtual memory page-out by the guest operating system. Measuring guest virtual memory page-out is useful for determining memory conditions inside the guest operating system. Given determined memory conditions, memory allocation and reclaiming can be used control memory conditions. Memory conditions in the virtual machine can be controlled with the objective of achieving some target memory conditions.
摘要翻译：回收分配给虚拟机的内存。在虚拟机上作为访客应用程序运行的资源预留应用程序在guest虚拟机中保留位置。相应的物理内存可以被回收并分配给另一个虚拟机。资源预留应用程序允许由客户操作系统检测访客虚拟存储器页面输出。测量访客虚拟内存页面输出对于确定客户机操作系统中的内存条件很有用。给定确定的内存条件，内存分配和回收可以用于控制内存条件。可以通过实现一些目标内存条件来控制虚拟机中的内存条件。

10. 发明申请

US20090055693A1 Monitoring Execution of Guest Code in a Virtual Machine 有权
标题翻译：监视虚拟机中访客代码的执行
公开(公告)号：US20090055693A1
公开(公告)日：2009-02-26
申请号：US12188929
申请日：2008-08-08
申请人： Dmitriy Budko , Xiaoxin Chen , Oded Horovitz , Pratap Subrahmanyam , Carl Waldspurger
发明人： Dmitriy Budko , Xiaoxin Chen , Oded Horovitz , Pratap Subrahmanyam , Carl Waldspurger
IPC分类号： G06F9/455 , G06F12/08 , G06F11/07
CPC分类号： G06F21/53 , G06F9/45558 , G06F2009/45587 , G06F2009/45591
摘要： One embodiment of the present invention is a method of operating a virtualization system, the method including: (a) instantiating a guest in a virtual machine of the virtualization system; and (b) monitoring execution of code registered for monitored execution in an execution context of the guest, wherein the monitoring is performed by the virtualization system and is hidden from computations of the guest.
摘要翻译：本发明的一个实施例是一种操作虚拟化系统的方法，所述方法包括：（a）在所述虚拟化系统的虚拟机中实例化客户机; 以及（b）监视在访客的执行上下文中注册用于被监视执行的代码的执行，其中所述监视由所述虚拟化系统执行并且隐藏于所述访客的计算中。

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