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    Unified hypercall interface across processors in virtualized computing systems
    1.
    发明授权
    Unified hypercall interface across processors in virtualized computing systems 有权

    公开(公告)号：US11550609B2

    公开(公告)日：2023-01-10

    申请号：US16744356

    申请日：2020-01-16

    Applicant: VMware, Inc.

    Inventor： Andrei Warkentin ,  Cyprien Laplace ,  Regis Duchesne ,  Alexander Fainkichen ,  Shruthi Muralidhara Hiriyuru ,  Ye Li

    IPC: G06F9/455

    Abstract: An example method of interfacing with a hypervisor in a computing system is described, which includes a processor having at least three hierarchical privilege levels including a third privilege level more privileged than a second privilege level, the second privilege level more privileged than a first privilege level. The method includes: identifying an input/output (I/O) space instruction, not supported by the processor, to be performed for backdoor communication between the hypervisor and guest software executing in a virtual machine (VM) managed by the hypervisor, the hypervisor executing at the third privilege level; writing one or more parameters to one or more registers of the processor that are mapped to one or more unsupported registers used by the I/O space instruction; writing a value indicative of the I/O space instruction to a designated register of the processor; executing an instruction, by the guest software executing at the first or second privilege level, which is trapped to the third privilege level.

    Partitioning a hypervisor into virtual hypervisors
    2.
    发明授权
    Partitioning a hypervisor into virtual hypervisors 有权

    公开(公告)号：US11422840B2

    公开(公告)日：2022-08-23

    申请号：US14982837

    申请日：2015-12-29

    Applicant: VMware, Inc.

    Inventor： Andrei Warkentin ,  Harvey Tuch ,  Cyprien Laplace ,  Alexander Fainkichen

    IPC: G06F9/455

    Abstract: In an example, a computer system includes a hardware platform and a hypervisor executing on the hardware platform. The hypervisor includes a kernel and a plurality of user-space instances within a user-space above the kernel. Each user-space instance is isolated from each other user-space instance through namespaces. Each user-space instance includes resources confined by hierarchical resource groups. The computer system includes a plurality of virtual hypervisors, where each virtual hypervisor executes in a respective user-space instance of the plurality of user-space instances.

    Method and system to virtualize graphic processing services
    5.
    发明授权
    Method and system to virtualize graphic processing services 有权
    虚拟化图形处理服务的方法和系统

    公开(公告)号：US09582849B2

    公开(公告)日：2017-02-28

    申请号：US14065309

    申请日：2013-10-28

    Applicant: VMware, Inc.

    Inventor： Sébastien Baudouin ,  Cyprien Laplace ,  Damien Dejean ,  Eric Donnat

    IPC: G06T15/00 ,  G06T1/60 ,  G06T1/00 ,  G06T15/04 ,  G09G5/36 ,  G06T1/20 ,  G06F9/38 ,  G06T15/10 ,  G06T17/20 ,  G06T17/00 ,  G06F9/455

    CPC classification number: G06T1/60 ,  G06F9/3851 ,  G06F9/45508 ,  G06F9/45533 ,  G06F9/45545 ,  G06F9/45558 ,  G06F9/46 ,  G06F9/544 ,  G06F2009/45591 ,  G06F2209/509 ,  G06T1/00 ,  G06T1/20 ,  G06T15/00 ,  G06T15/005 ,  G06T15/04 ,  G06T15/10 ,  G06T17/00 ,  G06T17/20 ,  G09G5/363

    Abstract: Methods and systems configured to virtualize graphic processing services in a virtual machine environment are disclosed. A virtual machine monitor (VMM) may be configured to maintain a virtual machine (VM) based on a host operating system (OS) executing in the system. The VM may contain a virtualized graphics library (vGLib) configured to support a graphic command from an application executing in the VM. The host OS may contain a graphics library (GLib) configured to support the graphic command and utilize a graphics processing unit (GPU) in the system to process the graphic command. Upon receiving the graphic command from the application, the vGLib may be configured to allocate a memory section in the VM to store the graphic command. And the VMM may be further configured to share access to the memory section with the host OS, thereby allowing the host OS to retrieve the graphic command from the memory section and deliver the graphic command to the GLib for processing.

    Abstract translation: 公开了在虚拟机环境中虚拟化图形处理服务的方法和系统。 可以将虚拟机监视器（VMM）配置为基于在系统中执行的主机操作系统（OS）来维护虚拟机（VM）。 VM可以包含虚拟化图形库（vGLib），其被配置为支持在VM中执行的应用程序的图形命令。 主机OS可以包含被配置为支持图形命令并利用系统中的图形处理单元（GPU）来处理图形命令的图形库（GLib）。 在从应用程序接收到图形命令之后，vGLib可被配置为在虚拟机中分配存储器部分以存储图形命令。 并且VMM可以进一步配置为与主机OS共享对存储器部分的访问，从而允许主机OS从存储器部分检索图形命令，并将图形命令传递到GLib进行处理。

    Guest time scaling for a virtual machine in a virtualized computer system
    6.
    发明授权
    Guest time scaling for a virtual machine in a virtualized computer system 有权

    公开(公告)号：US12248799B2

    公开(公告)日：2025-03-11

    申请号：US17553607

    申请日：2021-12-16

    Applicant: VMware, Inc.

    Inventor： Andrei Warkentin ,  Ye Li ,  Alexander Fainkichen ,  Regis Duchesne ,  Cyprien Laplace ,  Shruthi Muralidhara Hiriyuru ,  Sunil Kumar Kotian

    IPC: G06F9/455

    Abstract: An example method of managing guest time for a virtual machine (VM) supported by a hypervisor of a virtualized host computer includes: configuring, by the hypervisor, a central processing unit (CPU) of the host computer to trap, to the hypervisor, access by guest code in the VM to a physical counter and timer of the CPU; configuring, by the hypervisor, the guest code in the VM to use the physical counter and timer of the CPU rather than a virtual counter and timer of the CPU; trapping, at the hypervisor, an access to the physical counter and timer by the guest code; and executing, by the hypervisor, the access to the physical counter and timer on behalf of the guest code while compensating for an adjustment of a system count of the physical counter and timer to maintain the guest time as scaled with respect to frequency of the physical counter and timer.

    Method for converting device tree data into ACPI data for edge device operating in a network
    9.
    发明授权
    Method for converting device tree data into ACPI data for edge device operating in a network 有权

    公开(公告)号：US11263019B2

    公开(公告)日：2022-03-01

    申请号：US16521434

    申请日：2019-07-24

    Applicant: VMware, Inc.

    Inventor： Andrei Warkentin ,  Cyprien Laplace ,  Ye Li ,  Alexander Fainkichen ,  Regis Duchesne

    IPC: G06F15/177 ,  G06F9/00 ,  G06F9/4401 ,  G06F16/22

    Abstract: A method for generating boot tables for a device having access to device information. It is determined whether there exists at least one system boot table stored in a memory. If it is determined that a system boot table does not exist, the device information is retrieved, and the device information is converted to at least one boot table. The converting includes generating a first boot table by populating the first boot table with information of components of the device that have a correspondence to a computer system boot information standard. The generating also includes generating a second boot table for another component of the device that does not have a correspondence to the computer system boot information standard, by creating an entry in the second boot table that is populated with an identifier used to find a compatible component defined in the computer system boot standard.

    Virtualization detection in a computing system
    10.
    发明授权
    Virtualization detection in a computing system 有权

    公开(公告)号：US10698783B2

    公开(公告)日：2020-06-30

    申请号：US15865770

    申请日：2018-01-09

    Applicant: VMware, Inc.

    Inventor： Andrei Warkentin ,  Cyprien Laplace ,  Regis Duchesne ,  Ye Li ,  Alexander Fainkichen

    IPC: G06F9/455 ,  G06F11/30 ,  G06F13/10

    Abstract: A method of detecting virtualization in a computing system, which includes a processor having at least three hierarchical privilege levels including a third privilege level more privileged than a second privilege level, the second privilege level more privileged than a first privilege level, is described. The method includes: executing a program on the processor at a privilege level less privileged than the third privilege level, the program including a load-exclusive instruction of the processor, followed by at least one instruction of the processor capable of being trapped to the third privilege level, followed by a store-exclusive instruction of the processor; and determining presence or absence of virtualization software at least a portion of which executes at the third privilege level in response to a return status of the store-exclusive instruction.

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