公开(公告)号：US20230401061A1

公开(公告)日：2023-12-14

申请号：US18126920

申请日：2023-03-27

Applicant: Ashok RAJ ,  Andreas KLEEN ,  Gilbert NEIGER ,  Beeman STRONG ,  Jason BRANDT ,  Rupin VAKHARWALA ,  Jeff HUXEL ,  Larisa NOVAKOVSKY ,  Ido OUZIEL ,  Sarathy JAYAKUMAR

Inventor： Ashok RAJ ,  Andreas KLEEN ,  Gilbert NEIGER ,  Beeman STRONG ,  Jason BRANDT ,  Rupin VAKHARWALA ,  Jeff HUXEL ,  Larisa NOVAKOVSKY ,  Ido OUZIEL ,  Sarathy JAYAKUMAR

IPC: G06F9/30 ,  G06F15/80 ,  G06F9/50 ,  G06F9/48

CPC classification number: G06F9/30098 ,  G06F15/80 ,  G06F9/5005 ,  G06F9/4812

Abstract: An apparatus and method for processing non-maskable interrupt source information. For example, one embodiment of a processor comprises: a plurality of cores comprising execution circuitry to execute instructions and process data; local interrupt circuitry comprising a plurality of registers to store interrupt-related data including non-maskable interrupt (NMI) data related to a first NMI; and non-maskable interrupt (NMI) processing mode selection circuitry, responsive to a request, to select between at least two NMI processing modes to process the first NMI including: a first NMI processing mode in which the plurality of registers are to store first data related to a first NMI, wherein no NMI source information related to a source of the NMI is included in the first data, and a second NMI processing mode in which the plurality of registers are to store both the first data related to the first NMI and second data comprising NMI source information indicating the NMI source.

公开(公告)号：US20210357221A1

公开(公告)日：2021-11-18

申请号：US17359337

申请日：2021-06-25

Applicant: Ashok RAJ ,  Andreas KLEEN ,  Gilbert NEIGER ,  Beeman STRONG ,  Jason BRANDT ,  Rupin VAKHARWALA ,  Jeff HUXEL ,  Larisa NOVAKOVSKY ,  Ido OUZIEL ,  Sarathy JAYAKUMAR

Inventor： Ashok RAJ ,  Andreas KLEEN ,  Gilbert NEIGER ,  Beeman STRONG ,  Jason BRANDT ,  Rupin VAKHARWALA ,  Jeff HUXEL ,  Larisa NOVAKOVSKY ,  Ido OUZIEL ,  Sarathy JAYAKUMAR

IPC: G06F9/30 ,  G06F15/80 ,  G06F9/50 ,  G06F9/48

Abstract: An apparatus and method for processing non-maskable interrupt source information. For example, one embodiment of a processor comprises: a plurality of cores comprising execution circuitry to execute instructions and process data; local interrupt circuitry comprising a plurality of registers to store interrupt-related data including non-maskable interrupt (NMI) data related to a first NMI; and non-maskable interrupt (NMI) processing mode selection circuitry, responsive to a request, to select between at least two NMI processing modes to process the first NMI including: a first NMI processing mode in which the plurality of registers are to store first data related to a first NMI, wherein no NMI source information related to a source of the NMI is included in the first data, and a second NMI processing mode in which the plurality of registers are to store both the first data related to the first NMI and second data comprising NMI source information indicating the NMI source.

公开(公告)号：US20190095350A1

公开(公告)日：2019-03-28

申请号：US15714217

申请日：2017-09-25

Applicant: David M. Durham ,  Siddhartha Chhabra ,  Amy L. Santoni ,  Gilbert Neiger ,  Barry E. Huntley ,  Hormuzd M. Khosravi ,  Baiju V. Patel ,  Ravi L. Sahita ,  Gideon Gerzon ,  Ido Ouziel ,  Ioannis T. Schoinas ,  Rajesh M. Sankaran

Inventor： David M. Durham ,  Siddhartha Chhabra ,  Amy L. Santoni ,  Gilbert Neiger ,  Barry E. Huntley ,  Hormuzd M. Khosravi ,  Baiju V. Patel ,  Ravi L. Sahita ,  Gideon Gerzon ,  Ido Ouziel ,  Ioannis T. Schoinas ,  Rajesh M. Sankaran

IPC: G06F12/14 ,  G06F21/60 ,  G06F21/82 ,  G06F3/06

Abstract: In one embodiment, a cryptographic circuit is adapted to receive a data line including at least an encrypted portion from a memory in response to a read request having a memory address from a first agent, obtain a key identifier for a key of the first agent from the data line, obtain the key using the key identifier, decrypt the at least encrypted portion of the data line using the key and send decrypted data of the at least encrypted portion of the data line to the first agent. Other embodiments are described and claimed.

公开(公告)号：US09430384B2

公开(公告)日：2016-08-30

申请号：US13854107

申请日：2013-03-31

Applicant: Carlos V Rozas ,  Ilya Alexandrovich ,  Ittai Anati ,  Alex Berenzon ,  Michael A Goldsmith ,  Barry E Huntley ,  Anton Ivanov ,  Simon P Johnson ,  Rebekah M. Leslie-Hurd ,  Francis X. McKeen ,  Gilbert Neiger ,  Rinat Rappoport ,  Scott Dion Rodgers ,  Uday R. Savagaonkar ,  Vincent R. Scarlata ,  Vedvyas Shanbhogue ,  Wesley H Smith ,  William Colin Wood

Inventor： Carlos V Rozas ,  Ilya Alexandrovich ,  Ittai Anati ,  Alex Berenzon ,  Michael A Goldsmith ,  Barry E Huntley ,  Anton Ivanov ,  Simon P Johnson ,  Rebekah M. Leslie-Hurd ,  Francis X. McKeen ,  Gilbert Neiger ,  Rinat Rappoport ,  Scott Dion Rodgers ,  Uday R. Savagaonkar ,  Vincent R. Scarlata ,  Vedvyas Shanbhogue ,  Wesley H Smith ,  William Colin Wood

IPC: G06F12/08 ,  G06F12/10

CPC classification number: G06F12/0875 ,  G06F12/0808 ,  G06F12/1027 ,  G06F2212/1016 ,  G06F2212/402

Abstract: Instructions and logic provide advanced paging capabilities for secure enclave page caches. Embodiments include multiple hardware threads or processing cores, a cache to store secure data for a shared page address allocated to a secure enclave accessible by the hardware threads. A decode stage decodes a first instruction specifying said shared page address as an operand, and execution units mark an entry corresponding to an enclave page cache mapping for the shared page address to block creation of a new translation for either of said first or second hardware threads to access the shared page. A second instruction is decoded for execution, the second instruction specifying said secure enclave as an operand, and execution units record hardware threads currently accessing secure data in the enclave page cache corresponding to the secure enclave, and decrement the recorded number of hardware threads when any of the hardware threads exits the secure enclave.

Abstract translation: 说明和逻辑为安全的飞地页面缓存提供了高级分页功能。 实施例包括多个硬件线程或处理核心，用于存储分配给由硬件线程可访问的安全空间的共享页面地址的安全数据的高速缓存。 解码级将指定所述共享页地址的第一指令解码为操作数，并且执行单元标记对应于共享页地址的飞地页高速缓存映射的条目，以阻止所述第一或第二硬件线程中的任一个的新转换的创建 访问共享页面。 第二指令被解码以执行，第二指令指定所述安全飞地作为操作数，并且执行单元记录当前访问与安全飞地相对应的飞地页面缓存中的安全数据的硬件线程，并且当任何 的硬件线程退出安全飞地。

公开(公告)号：US09329884B2

公开(公告)日：2016-05-03

申请号：US14329192

申请日：2014-07-11

Applicant: Beeman C. Strong ,  Jason W. Brandt ,  Gilbert Neiger

Inventor： Beeman C. Strong ,  Jason W. Brandt ,  Gilbert Neiger

IPC: G06F9/455

CPC classification number: G06F9/45533 ,  G06F9/45558 ,  G06F11/3636 ,  G06F2009/45583 ,  G06F2009/45591

Abstract: A processing device with tracing functionality for a virtual machine is described. The processing device includes a tracing register to store a value indicative of whether tracing is enabled or disabled, a tracing module to generate trace data while tracing is enabled, and an internal buffer to store the trace data. When tracing is disabled, the processing device removes the trace data from the buffer. Mechanisms are described to ensure that the trace data is not corrupted during this process, despite the presence of page faults that may result from trace output writes.

Abstract translation: 描述了具有用于虚拟机的跟踪功能的处理设备。 处理装置包括跟踪寄存器，用于存储指示跟踪是启用还是禁用的值，跟踪模块用于在跟踪被启用时生成跟踪数据，以及内部缓冲器来存储跟踪数据。 当禁用跟踪时，处理设备将从缓冲区中删除跟踪数据。 描述了机制，以确保在此过程中跟踪数据不会损坏，尽管存在可能由跟踪输出写入引起的页面错误。

公开(公告)号：US08601233B2

公开(公告)日：2013-12-03

申请号：US13658752

申请日：2012-10-23

Applicant: Steven M. Bennett ,  Andrew V. Anderson ,  Gilbert Neiger ,  Richard A. Uhlig ,  Scott Dion Rodgers ,  Rajesh M. Sankaran ,  Camron B. Rust ,  Sebastian Schoenberg

Inventor： Steven M. Bennett ,  Andrew V. Anderson ,  Gilbert Neiger ,  Richard A. Uhlig ,  Scott Dion Rodgers ,  Rajesh M. Sankaran ,  Camron B. Rust ,  Sebastian Schoenberg

IPC: G11C15/00

CPC classification number: G06F12/1027 ,  G06F9/3004 ,  G06F9/30076 ,  G06F9/45558 ,  G06F12/0246 ,  G06F12/0875 ,  G06F12/1009 ,  G06F12/1036 ,  G06F12/1054 ,  G06F2009/45583 ,  G06F2212/152 ,  G06F2212/2022 ,  G06F2212/452 ,  G06F2212/50 ,  G06F2212/65 ,  G06F2212/657 ,  G06F2212/68 ,  G06F2212/683 ,  G06F2212/7201

Abstract: A processor including logic to execute an instruction to synchronize a mapping from a physical address of a guest of a virtualization based system (guest physical address) to a physical address of the host of the virtualization based system (host physical address), and stored in a translation lookaside buffer (TLB), with a corresponding mapping stored in an extended paging table (EPT) of the virtualization based system.

公开(公告)号：US08543772B2

公开(公告)日：2013-09-24

申请号：US12959109

申请日：2010-12-02

Applicant: Eric C. Cota-Robles ,  Andy Glew ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Gilbert Neiger ,  Richard Uhlig

Inventor： Eric C. Cota-Robles ,  Andy Glew ,  Stalinselvaraj Jeyasingh ,  Alain Kagi ,  Michael A. Kozuch ,  Gilbert Neiger ,  Richard Uhlig

IPC: G06F12/08

CPC classification number: G06F12/1027 ,  G06F9/30076 ,  G06F12/1036 ,  G06F2212/151

Abstract: One embodiment of the present invention is a technique to invalidate entries in a translation lookaside buffer (TLB). A TLB in a processor has a plurality of TLB entries. Each TLB entry is associated with a virtual machine extension (VMX) tag word indicating if the associated TLB entry is invalidated according to a processor mode when an invalidation operation is performed. The processor mode is one of execution in a virtual machine (VM) and execution not in a virtual machine. The invalidation operation belongs to a non-empty set of invalidation operations composed of a union of (1) a possibly empty set of operations that invalidate a variable number of TLB entries, (2) a possibly empty set of operations that invalidate exactly one TLB entry, (3) a possibly empty set of operations that invalidate the plurality of TLB entries, (4) a possibly empty set of operations that enable and disable use of virtual memory, and (5) a possibly empty set of operations that configure physical address size, page size or other virtual memory system behavior in a manner that changes the manner in which a physical machine interprets the TLB entries.

Abstract translation: 本发明的一个实施例是使翻译后备缓冲器（TLB）中的条目无效的技术。 处理器中的TLB具有多个TLB条目。 当执行无效操作时，每个TLB条目与虚拟机扩展（VMX）标签字相关联，指示相关联的TLB条目是否根据处理器模式而无效。 处理器模式是虚拟机（VM）中的执行之一，而不是虚拟机中的执行。 无效操作属于一个无效的无效操作集合，它由（1）可能为空的操作集合组合，使一组可变数量的TLB条目无效，（2）一组可能的空白操作，使一个TLB无效 条目，（3）使多个TLB条目无效的可能的一组操作，（4）启用和禁用虚拟存储器的使用的可能的一组可能的空操作，以及（5）配置物理的可能的一组操作 地址大小，页面大小或其他虚拟内存系统行为，以改变物理机器解释TLB条目的方式。

公开(公告)号：US20130247040A1

公开(公告)日：2013-09-19

申请号：US13837526

申请日：2013-03-15

Applicant: Steven M. Bennett ,  Andrew V. Anderson ,  Gilbert Neiger ,  Dion Rodgers ,  Richard A. Uhlig ,  Lawrence O. Smith ,  Barry E. Huntley

Inventor： Steven M. Bennett ,  Andrew V. Anderson ,  Gilbert Neiger ,  Dion Rodgers ,  Richard A. Uhlig ,  Lawrence O. Smith ,  Barry E. Huntley

IPC: G06F9/455

CPC classification number: G06F9/45533 ,  G06F9/3861 ,  G06F9/45545 ,  G06F9/4555 ,  G06F9/45558 ,  G06F9/4812 ,  G06F9/542 ,  G06F13/24 ,  G06F2009/45566

Abstract: Embodiments of apparatuses and methods for processing virtualization events in a layered virtualization architecture are disclosed. In one embodiment, an apparatus includes a event logic and evaluation logic. The event logic is to recognize a virtualization event. The evaluation logic is to determine whether to transfer control from a child guest to a parent guest in response to the virtualization event.

公开(公告)号：US20130219154A1

公开(公告)日：2013-08-22

申请号：US13837923

申请日：2013-03-15

Applicant: Don A. Van Dyke ,  Michael Mishaeli ,  Ittai Anati ,  Baiju V. Patel ,  Will Deutsch ,  Rajesh Shah ,  Gilbert Neiger ,  James B. Crossland ,  Chris J. Newburn ,  Bryant E. Bigbee ,  Muhammad Faisal Azeem ,  John L. Reid ,  Dion Rodgers

Inventor： Don A. Van Dyke ,  Michael Mishaeli ,  Ittai Anati ,  Baiju V. Patel ,  Will Deutsch ,  Rajesh Shah ,  Gilbert Neiger ,  James B. Crossland ,  Chris J. Newburn ,  Bryant E. Bigbee ,  Muhammad Faisal Azeem ,  John L. Reid ,  Dion Rodgers

IPC: G06F9/30

CPC classification number: G06F9/30043 ,  G06F9/30003 ,  G06F9/30101 ,  G06F9/461

Abstract: Embodiments of an invention related to context state management based on processor features are disclosed. In one embodiment, a processor includes instruction logic and state management logic. The instruction logic is to receive a state management instruction having a parameter to identify a subset of the features supported by the processor. The state management logic is to perform a state management operation specified by the state management instruction.

公开(公告)号：US20120166767A1

公开(公告)日：2012-06-28

申请号：US12976981

申请日：2010-12-22

Applicant: Baiju V. Patel ,  Gilbert Neiger ,  Martin G. Dixon ,  James S. Coke ,  James B. Crossland

Inventor： Baiju V. Patel ,  Gilbert Neiger ,  Martin G. Dixon ,  James S. Coke ,  James B. Crossland

IPC: G06F9/312

CPC classification number: G06F9/30032 ,  G06F9/30101 ,  G06F9/342

Abstract: Embodiments of systems, apparatuses, and methods for performing privilege agnostic segment base register read or write instruction are described. An exemplary method may include fetching the privilege agnostic segment base register write instruction, wherein the privilege agnostic write instruction includes a 64-bit data source operand, decoding the fetched privilege agnostic segment base register write instruction, and executing the decoded privilege agnostic segment base register write instruction to write the 64-bit data of the source operand into the segment base register identified by the opcode of the privilege agnostic segment base register write instruction.

Abstract translation: 描述用于执行特权不可知段段基址寄存器读或写指令的系统，装置和方法的实施例。 一种示例性方法可以包括获取特权不可知段基址寄存器写指令，其中特权不可知写指令包括64位数据源操作数，对获取的特权不可知段基址寄存器写指令进行解码，以及执行解码的特权不可知段基址寄存器 写指令将源操作数的64位数据写入由特权不可知段基址寄存器写指令的操作码标识的段基寄存器中。