公开(公告)号：US08706942B2

公开(公告)日：2014-04-22

申请号：US11026314

申请日：2004-12-29

申请人： Rajesh Madukkarumukumana ,  James A. Sutton, II ,  Ioannis Schoinas ,  Richard Uhlig

发明人： Rajesh Madukkarumukumana ,  James A. Sutton, II ,  Ioannis Schoinas ,  Richard Uhlig

IPC分类号： G06F13/36

CPC分类号： G06F13/28

摘要： A method and apparatus is described herein for supporting direct memory accesses between peer I/O devices. It is determined whether a guest physical address (GPA) referenced by an access generated from an I/O device, is within a range of GPAs associated with local I/O devices based at least in part on a GPA base and a GPA window size. If the GPA is within the window, then the GPA is translated to an HPA based at least in part on a base HPA associated with a local device and then forwarded to that local device. However, if the GPA is not within the window, then the access is forwarded upstream.

摘要翻译： 这里描述了一种用于支持对等I / O设备之间的直接存储器访问的方法和装置。 确定由I / O设备产生的访问所引用的访客物理地址（GPA）是否至少部分地基于GPA基础和GPA窗口大小在与本地I / O设备相关联的GPA的范围内 。 如果GPA在窗口内，则GPA至少部分基于与本地设备关联的基本HPA转换为HPA，然后转发到该本地设备。 但是，如果GPA不在窗口内，那么访问将在上游转发。

公开(公告)号：US07984203B2

公开(公告)日：2011-07-19

申请号：US12648461

申请日：2009-12-29

申请人： Rajesh Madukkarumukumana ,  Udo A. Steinburg ,  Steven M. Bennett ,  Andrew V. Anderson ,  Gilbert Neiger

发明人： Rajesh Madukkarumukumana ,  Udo A. Steinburg ,  Steven M. Bennett ,  Andrew V. Anderson ,  Gilbert Neiger

IPC分类号： G06F12/02

CPC分类号： G06F12/1081 ,  G06F13/28

摘要： An apparatus is disclosed. The apparatus includes a remapping circuit to facilitate access of one or more I/O devices to a memory device for direct memory access (DMA) transactions. The remapping circuit of the apparatus includes a translation mechanism to perform memory address translations for I/O DMA transactions via address window-based translations.

摘要翻译： 公开了一种装置。 该装置包括重新映射电路，以便于将一个或多个I / O设备访问到用于直接存储器访问（DMA）事务的存储器设备。 该装置的重新映射电路包括一个翻译机构，用于通过地址窗口翻译执行I / O DMA交易的存储器地址转换。

公开(公告)号：US20100100649A1

公开(公告)日：2010-04-22

申请号：US12653989

申请日：2009-12-22

申请人： Rajesh Madukkarumukumana ,  James A. Sutton, II ,  Ioannis Schoinas ,  Richard Uhlig

发明人： Rajesh Madukkarumukumana ,  James A. Sutton, II ,  Ioannis Schoinas ,  Richard Uhlig

IPC分类号： G06F13/28 ,  G06F13/20

CPC分类号： G06F13/28

摘要： A method and apparatus is described herein for supporting direct memory accesses between peer I/O devices. It is determined whether a guest physical address (GPA) referenced by an access generated from an I/O device, is within a range of GPAs associated with local I/O devices based at least in part on a GPA base and a GPA window size. If the GPA is within the window, then the GPA is translated to an HPA based at least in part on a base HPA associated with a local device and then forwarded to that local device. However, if the GPA is not within the window, then the access is forwarded upstream.

摘要翻译： 这里描述了一种用于支持对等I / O设备之间的直接存储器访问的方法和装置。 确定由I / O设备产生的访问所引用的访客物理地址（GPA）是否至少部分地基于GPA基础和GPA窗口大小在与本地I / O设备相关联的GPA的范围内 。 如果GPA在窗口内，则GPA至少部分基于与本地设备关联的基本HPA转换为HPA，然后转发到该本地设备。 但是，如果GPA不在窗口内，那么访问将在上游转发。

公开(公告)号：US07340582B2

公开(公告)日：2008-03-04

申请号：US10956630

申请日：2004-09-30

申请人： Rajesh Madukkarumukumana ,  Ioannis Schoinas ,  Ku-jei King ,  Balaji Vembu ,  Gilbert Neiger ,  Richard Uhlig

发明人： Rajesh Madukkarumukumana ,  Ioannis Schoinas ,  Ku-jei King ,  Balaji Vembu ,  Gilbert Neiger ,  Richard Uhlig

IPC分类号： G06F12/00 ,  G06F13/00

CPC分类号： G06F11/0712 ,  G06F11/073 ,  G06F11/0745 ,  G06F11/0793 ,  G06F12/1081

摘要： An embodiment of the present invention is a technique to process faults in a direct memory access address translation. A register set stores global control or status information for fault processing of a fault generated by an input/output (I/O) transaction requested by an I/O device. An address translation structure translates a guest physical address to a host physical address. The guest physical address corresponds to the I/O transaction and is mapped to a domain. The address translation structure has at least an entry associated with the domain and domain-specific control information for the fault processing.

摘要翻译： 本发明的一个实施例是一种在直接存储器访问地址转换中处理故障的技术。 寄存器组存储由I / O设备请求的输入/输出（I / O）事务产生的故障的故障处理的全局控制或状态信息。 地址转换结构将访客物理地址转换为主机物理地址。 访客物理地址对应于I / O事务，并映射到域。 地址转换结构至少具有与域相关联的条目和用于故障处理的特定于域的控制信息。

公开(公告)号：US20070157197A1

公开(公告)日：2007-07-05

申请号：US11323114

申请日：2005-12-30

申请人： Gilbert Neiger ,  Rajesh Madukkarumukumana ,  Richard Uhlig ,  Udo Steinberg ,  Sebastian Schoenberg ,  Sridhar Muthrasanallur ,  Steven Bennett ,  Andrew Anderson ,  Erik Cota-Robles

发明人： Gilbert Neiger ,  Rajesh Madukkarumukumana ,  Richard Uhlig ,  Udo Steinberg ,  Sebastian Schoenberg ,  Sridhar Muthrasanallur ,  Steven Bennett ,  Andrew Anderson ,  Erik Cota-Robles

IPC分类号： G06F9/455

CPC分类号： G06F13/24 ,  G06F9/45533 ,  G06F9/4812

摘要： Embodiments of apparatuses, methods, and systems for delivering an interrupt to a virtual processor are disclosed. In one embodiment, an apparatus includes an interface to receive an interrupt request, delivery logic, and exit logic. The delivery logic is to determine, based on an attribute of the interrupt request, whether the interrupt request is to be delivered to the virtual processor. The exit logic is to transfer control to a host if the delivery logic determines that the interrupt request is not to be delivered to the virtual processor.

摘要翻译： 公开了用于向虚拟处理器递送中断的装置，方法和系统的实施例。 在一个实施例中，装置包括用于接收中断请求，传递逻辑和退出逻辑的接口。 交付逻辑是基于中断请求的属性来确定中断请求是否被传送到虚拟处理器。 如果传递逻辑确定中断请求不被传送到虚拟处理器，则出口逻辑是将控制传送到主机。

公开(公告)号：US20050289283A1

公开(公告)日：2005-12-29

申请号：US10877483

申请日：2004-06-25

申请人： Ulhas Warrier ,  Rajesh Madukkarumukumana

发明人： Ulhas Warrier ,  Rajesh Madukkarumukumana

IPC分类号： G06F21/00 ,  G11C5/00 ,  H04L29/06

CPC分类号： H04L63/0218 ,  G06F21/53 ,  G06F2221/2105

摘要： An autonomic computing environment is provided by sequestering one of a plurality of processor resources, partitioning a memory, and hiding an input/output (I/O) device. One processor resource is sequestered such that the sequestered processor resource is not exposed to the remaining processor resources as a processor resource. A memory region is partitioned to provide a service processing portion such that the sequestered processor resource has access to all of the memory region and the remaining processor resources have access to at least a portion of the memory region but do not have access to the service processing portion. A first I/O device is hidden such that the sequestered processor resource has access to the first I/O device and the remaining processor resources do not have access to the first I/O device.

摘要翻译： 通过隔离多个处理器资源之一，分割存储器以及隐藏输入/输出（I / O）设备来提供自主计算环境。 一个处理器资源被隔离，使得隔离的处理器资源不作为处理器资源暴露于剩余的处理器资源。 存储器区域被分割以提供服务处理部分，使得隔离的处理器资源可以访问所有的存储器区域，并且剩余的处理器资源可以访问存储器区域的至少一部分，但是不能访问服务处理 一部分。 第一个I / O设备被隐藏，使得隔离的处理器资源可以访问第一个I / O设备，其余的处理器资源不能访问第一个I / O设备。

公开(公告)号：US08850098B2

公开(公告)日：2014-09-30

申请号：US12653989

申请日：2009-12-22

申请人： Rajesh Madukkarumukumana ,  James A. Sutton, II ,  Ioannis Schoinas ,  Richard Uhlig

发明人： Rajesh Madukkarumukumana ,  James A. Sutton, II ,  Ioannis Schoinas ,  Richard Uhlig

IPC分类号： G06F13/36 ,  G06F13/28

CPC分类号： G06F13/28

摘要： A method and apparatus is described herein for supporting direct memory accesses between peer I/O devices. It is determined whether a guest physical address (GPA) referenced by an access generated from an I/O device, is within a range of GPAs associated with local I/O devices based at least in part on a GPA base and a GPA window size. If the GPA is within the window, then the GPA is translated to an HPA based at least in part on a base HPA associated with a local device and then forwarded to that local device. However, if the GPA is not within the window, then the access is forwarded upstream.

摘要翻译： 这里描述了一种用于支持对等I / O设备之间的直接存储器访问的方法和装置。 确定由I / O设备产生的访问所引用的访客物理地址（GPA）是否至少部分地基于GPA基础和GPA窗口大小在与本地I / O设备相关联的GPA的范围内 。 如果GPA在窗口内，则GPA至少部分基于与本地设备关联的基本HPA转换为HPA，然后转发到该本地设备。 但是，如果GPA不在窗口内，那么访问将在上游转发。

公开(公告)号：US20070156986A1

公开(公告)日：2007-07-05

申请号：US11322757

申请日：2005-12-30

申请人： Gilbert Neiger ,  Andrew Anderson ,  Steven Bennett ,  Rajesh Madukkarumukumana ,  Richard Uhlig ,  Rajesh Parthasarathy ,  Sebastian Schoenberg

发明人： Gilbert Neiger ,  Andrew Anderson ,  Steven Bennett ,  Rajesh Madukkarumukumana ,  Richard Uhlig ,  Rajesh Parthasarathy ,  Sebastian Schoenberg

IPC分类号： G06F12/14

CPC分类号： G06F12/1441 ,  G06F12/145 ,  G06F2009/45587

摘要： Embodiments of apparatuses, methods, and systems for guests to access memory mapped devices are disclosed. In one embodiment, an apparatus includes evaluation logic and exit logic. The evaluation logic is to determine, in response to an attempt of a guest to access a device using a memory address mapped to the device and based on an access type, whether the access is allowed. The exit logic is to transfer control to a host if the evaluation logic determines that the access is not allowed.

摘要翻译： 公开了访客访问存储器映射设备的装置，方法和系统的实施例。 在一个实施例中，装置包括评估逻辑和退出逻辑。 评估逻辑是为了响应于访客访问使用映射到设备的存储器地址并基于访问类型访问设备的尝试，确定访问是否被允许。 如果评估逻辑确定不允许访问，退出逻辑将控制传送到主机。

公开(公告)号：US20060143311A1

公开(公告)日：2006-06-29

申请号：US11026314

申请日：2004-12-29

申请人： Rajesh Madukkarumukumana ,  James Sutton ,  Ioannis Schoinas ,  Richard Uhlig

发明人： Rajesh Madukkarumukumana ,  James Sutton ,  Ioannis Schoinas ,  Richard Uhlig

IPC分类号： G06F3/00

CPC分类号： G06F13/28

摘要： A method and apparatus is described herein for supporting direct memory accesses between peer I/O devices. It is determined whether a guest physical address (GPA) referenced by an access generated from an I/O device, is within a range of GPAs associated with local I/O devices based at least in part on a GPA base and a GPA window size. If the GPA is within the window, then the GPA is translated to an HPA based at least in part on a base HPA associated with a local device and then forwarded to that local device. However, if the GPA is not within the window, then the access is forwarded upstream.

摘要翻译： 这里描述了一种用于支持对等I / O设备之间的直接存储器访问的方法和装置。 确定由I / O设备产生的访问所引用的访客物理地址（GPA）是否至少部分地基于GPA基础和GPA窗口大小在与本地I / O设备相关联的GPA的范围内 。 如果GPA在窗口内，则GPA至少部分基于与本地设备关联的基本HPA转换为HPA，然后转发到该本地设备。 但是，如果GPA不在窗口内，那么访问将在上游转发。

公开(公告)号：US20050132365A1

公开(公告)日：2005-06-16

申请号：US10738687

申请日：2003-12-16

申请人： Rajesh Madukkarumukumana ,  Gilbert Neiger ,  Ioannis Schoinas

发明人： Rajesh Madukkarumukumana ,  Gilbert Neiger ,  Ioannis Schoinas

IPC分类号： G06F9/455 ,  G06F9/50

CPC分类号： G06F9/5077

摘要： The present disclosure relates to the resource management of virtual machine(s) using hardware address mapping, and, more specifically, to facilitate direct access to devices from virtual machines, utilizing control of hardware address translation facilities.

摘要翻译： 本公开涉及使用硬件地址映射的虚拟机的资源管理，更具体地，涉及利用硬件地址转换设施的控制来促进从虚拟机直接访问设备。