公开(公告)号：US09817770B2

公开(公告)日：2017-11-14

申请号：US14963518

申请日：2015-12-09

Applicant: Intel Corporation

Inventor： Balaji Vembu ,  Aditya Navale ,  Wishwesh Gandhi

IPC: G06F12/10 ,  G06F12/1009 ,  G06F9/44 ,  G06F12/109 ,  G06F13/28 ,  G06T1/60 ,  G06F9/455

CPC classification number: G06F12/1009 ,  G06F9/4401 ,  G06F9/4403 ,  G06F9/4411 ,  G06F9/45533 ,  G06F9/45558 ,  G06F12/109 ,  G06F13/28 ,  G06F2009/45579 ,  G06F2009/45583 ,  G06F2212/152 ,  G06T1/60

Abstract: A method and apparatus for creating, updating, and using guest physical address (GPA) to host physical address (HPA) shadow translation tables for translating GPAs of graphics data direct memory access (DMA) requests of a computing environment implementing a virtual machine monitor to support virtual machines. The requests may be sent through a render or display path of the computing environment from one or more virtual machines, transparently with respect to the virtual machine monitor. The creating, updating, and using may be performed by a memory controller detecting entries sent to existing global and page directory tables, forking off shadow table entries from the detected entries, and translating GPAs to HPAs for the shadow table entries.

公开(公告)号：US20160147668A1

公开(公告)日：2016-05-26

申请号：US14963518

申请日：2015-12-09

Applicant: Intel Corporation

Inventor： Balaji Vembu ,  Aditya Navale ,  Wishwesh Gandhi

IPC: G06F12/10 ,  G06F9/455 ,  G06F9/44

CPC classification number: G06F12/1009 ,  G06F9/4401 ,  G06F9/4403 ,  G06F9/4411 ,  G06F9/45533 ,  G06F9/45558 ,  G06F12/109 ,  G06F13/28 ,  G06F2009/45579 ,  G06F2009/45583 ,  G06F2212/152 ,  G06T1/60

Abstract: A method and apparatus for creating, updating, and using guest physical address (GPA) to host physical address (HPA) shadow translation tables for translating GPAs of graphics data direct memory access (DMA) requests of a computing environment implementing a virtual machine monitor to support virtual machines. The requests may be sent through a render or display path of the computing environment from one or more virtual machines, transparently with respect to the virtual machine monitor. The creating, updating, and using may be performed by a memory controller detecting entries sent to existing global and page directory tables, forking off shadow table entries from the detected entries, and translating GPAs to HPAs for the shadow table entries.

公开(公告)号：US09223603B2

公开(公告)日：2015-12-29

申请号：US13932963

申请日：2013-07-01

Applicant: INTEL CORPORATION

Inventor： Balaji Vembu ,  Aditya Navale ,  Wishwesh Gandhi

IPC: G09G5/39 ,  G06F9/455 ,  G06F9/44 ,  G06F12/10 ,  G06F13/28 ,  G06T1/60

CPC classification number: G06F12/1009 ,  G06F9/4401 ,  G06F9/4403 ,  G06F9/4411 ,  G06F9/45533 ,  G06F9/45558 ,  G06F12/109 ,  G06F13/28 ,  G06F2009/45579 ,  G06F2009/45583 ,  G06F2212/152 ,  G06T1/60

Abstract: A method and apparatus for creating, updating, and using guest physical address (GPA) to host physical address (HPA) shadow translation tables for translating GPAs of graphics data direct memory access (DMA) requests of a computing environment implementing a virtual machine monitor to support virtual machines. The requests may be sent through a render or display path of the computing environment from one or more virtual machines, transparently with respect to the virtual machine monitor. The creating, updating, and using may be performed by a memory controller detecting entries sent to existing global and page directory tables, forking off shadow table entries from the detected entries, and translating GPAs to HPAs for the shadow table entries.

Abstract translation: 一种用于创建，更新和使用访客物理地址（GPA）以主机物理地址（HPA）影子转换表的方法和装置，用于将实现虚拟机监视器的计算环境的图形数据直接存储器访问（DMA）请求的GPA转换为 支持虚拟机。 可以通过虚拟机监视器透明地从一个或多个虚拟机通过计算环境的呈现或显示路径发送请求。 创建，更新和使用可以由存储器控制器执行，该存储器控制器检测发送到现有全局和页目录表的条目，从检测到的条目中分离影子表条目，以及将影子表条目的GPA转换为HPA。