公开(公告)号：US20240104193A1

公开(公告)日：2024-03-28

申请号：US17953169

申请日：2022-09-26

申请人： Microsoft Technology Licensing, LLC

发明人： Jin LIN ,  Jason Stewart WOHLGEMUTH ,  Michael Bishop EBERSOL ,  Aditya BHANDARI ,  Steven Adrian WEST ,  Emily Cara CLEMENS ,  Michael Halstead KELLEY ,  Dexuan CUI ,  Attilio MAINETTI ,  Sarah Elizabeth STEPHENSON ,  Carolina Cecilia PEREZ-VARGAS ,  Antoine Jean Denis DELIGNAT-LAVAUD ,  Kapil VASWANI ,  Alexander Daniel GREST ,  Steve Michel PRONOVOST ,  David Alan HEPKIN

IPC分类号： G06F21/53 ,  G06F21/60 ,  G06F21/79

CPC分类号： G06F21/53 ,  G06F21/602 ,  G06F21/79

摘要： Methods, systems, and computer program products for direct assignment of physical devices to confidential virtual machines (VMs). At a first guest privilege context of a guest partition, a direct assignment of a physical device associated with a host computer system to the guest partition is identified. The guest partition includes the first guest privilege context and a second guest privilege context, which is restricted from accessing memory associated with the first guest privilege context. The guest partition corresponds to a confidential VM, such that a memory region associated with the guest partition is inaccessible to a host operating system. It is determined, based on a policy, that the physical device is allowed to be directly assigned to the guest partition. Communication between the physical device and the second guest privilege context is permitted, such as by exposing the physical device on a virtual bus and/or forwarding an interrupt.

公开(公告)号：US20240161670A1

公开(公告)日：2024-05-16

申请号：US18391523

申请日：2023-12-20

申请人： Microsoft Technology Licensing, LLC

发明人： Michael Paul Erich VON HIPPEL ,  Ana Marta AMARAL DE CARVALHO ,  Hrushit Kamal PARIKH ,  Reiner FINK ,  Steve Michel PRONOVOST ,  Zhigang XU ,  Zachary Scott NORTHRUP ,  Leonardo E. BLANCO

IPC分类号： G09G3/20

CPC分类号： G09G3/20 ,  G09G2340/0435 ,  G09G2354/00

摘要： Dynamic refresh rate (DRR) switching is used to dynamically update a refresh rate of content presented on an interface. When a first application and a second application are presented on a user interface at a first refresh rate; a request may be received to temporarily boost the first refresh rate to a second, higher, refresh rate. DRR switching is initiated as the first refresh rate is temporarily boosted to a second refresh rate. Applications that are opted in to the second refresh rate receive signals to refresh content at the second refresh rate, while applications that are not opted in to the second refresh rate receive signals to refresh content at a virtualized refresh rate that matches the first refresh rate. Thus, the first application refreshes content at the first refresh rate and the second application refreshes content at the second, higher refresh rate, providing a smooth user experience without unnecessarily utilizing power consumption.

公开(公告)号：US20230122396A1

公开(公告)日：2023-04-20

申请号：US18083730

申请日：2022-12-19

申请人： Microsoft Technology Licensing, LLC

发明人： Jesse Tyler NATALIE ,  Iouri Vladimirovich TARASSOV ,  Steve Michel PRONOVOST ,  Shawn Lee HARGREAVES ,  Ben Carson HILLIS ,  Brian David PERKINS

IPC分类号： G06F9/455 ,  G06F9/38 ,  G06F9/54

摘要： The present disclosure relates to devices and methods for providing access to graphics or compute hardware acceleration to applications executing in a guest environment. The devices and methods may provide virtualization support to graphics or compute devices so that graphics or compute devices may be projected inside of a guest environment. The devices and methods may share the physical resources for graphics and compute hardware acceleration by coordinating the use of the graphics or compute hardware acceleration across a spectrum of devices, environments, or platforms.

公开(公告)号：US20230360574A1

公开(公告)日：2023-11-09

申请号：US18148413

申请日：2022-12-29

申请人： Microsoft Technology Licensing, LLC

发明人： Michael Paul Erich VON HIPPEL ,  Ana Marta AMARAL DE CARVALHO ,  Hrushit Kamal PARIKH ,  Reiner FINK ,  Steve Michel PRONOVOST ,  Zhigang XU ,  Zachary Scott NORTHRUP ,  Leonardo E. BLANCO

IPC分类号： G09G3/20

CPC分类号： G09G3/20 ,  G09G2354/00 ,  G09G2340/0435

摘要： Dynamic refresh rate (DRR) switching is used to dynamically update a refresh rate of content presented on an interface. When a first application and a second application are presented on a user interface at a first refresh rate; a request may be received to temporarily boost the first refresh rate to a second, higher, refresh rate. DRR switching is initiated as the first refresh rate is temporarily boosted to a second refresh rate. Applications that are opted in to the second refresh rate receive signals to refresh content at the second refresh rate, while applications that are not opted in to the second refresh rate receive signals to refresh content at a virtualized refresh rate that matches the first refresh rate. Thus, the first application refreshes content at the first refresh rate and the second application refreshes content at the second, higher refresh rate, providing a smooth user experience without unnecessarily utilizing power consumption.

公开(公告)号：US20210165673A1

公开(公告)日：2021-06-03

申请号：US16700873

申请日：2019-12-02

申请人： Microsoft Technology Licensing, LLC

发明人： Jesse Tyler NATALIE ,  Iouri Vladimirovich TARASSOV ,  Steve Michel PRONOVOST ,  Shawn Lee HARGREAVES ,  Ben Carson HILLIS ,  Brian David PERKINS

IPC分类号： G06F9/455 ,  G06F9/54 ,  G06F9/38

摘要： The present disclosure relates to devices and methods for providing access to graphics or compute hardware acceleration to applications executing in a guest environment. The devices and methods may provide virtualization support to graphics or compute devices so that graphics or compute devices may be projected inside of a guest environment. The devices and methods may share the physical resources for graphics and compute hardware acceleration by coordinating the use of the graphics or compute hardware acceleration across a spectrum of devices, environments, or platforms.