公开(公告)号：US20240338238A1

公开(公告)日：2024-10-10

申请号：US18574849

申请日：2022-01-26

申请人： Intel Corporation

发明人： Wei Wang ,  Kun Tian ,  Guang Zeng ,  Gilbert Neiger ,  Rajesh Sankaran ,  Asit Mallick ,  Jr-Shian Tsai ,  Jacob Jun Pan ,  Mesut Ergin

IPC分类号： G06F9/455 ,  G06F9/30

CPC分类号： G06F9/45558 ,  G06F9/3016 ,  G06F9/45545 ,  G06F2009/45579

摘要： A method and system of host to guest (H2G) notification are disclosed. H2G is provided via an instruction. The instruction is a send user inter-processor interrupt instruction. An exemplary processor includes decoder circuitry to decode a single instruction and execute the decoded single instruction according to the at least the opcode to cause a host to guest notification from a virtual device running in a host machine on the first physical processor to a virtual device driver running on a virtual processor in a guest machine on a second physical processor.

公开(公告)号：US20240289160A1

公开(公告)日：2024-08-29

申请号：US18658822

申请日：2024-05-08

申请人： Intel Corporation

发明人： Barry E. Huntley ,  Jr-Shian Tsai ,  Gilbert Neiger ,  Rajesh M. Sankaran ,  Mesut A. Ergin ,  Ravi L. Sahita ,  Andrew J. Herdrich ,  Wei Wang

IPC分类号： G06F9/455 ,  G06F9/30 ,  G06F12/02 ,  G06F12/10 ,  G06F12/109 ,  G11C7/10

CPC分类号： G06F9/45558 ,  G06F9/3004 ,  G06F9/45533 ,  G06F12/0292 ,  G06F12/10 ,  G06F12/109 ,  G11C7/1072 ,  G06F2009/45583 ,  G06F2009/45591 ,  G06F2009/45595 ,  G06F2212/151

摘要： A processor of an aspect includes a decode unit to decode an aperture access instruction, and an execution unit coupled with the decode unit. The execution unit, in response to the aperture access instruction, is to read a host physical memory address, which is to be associated with an aperture that is to be in system memory, from an access protected structure, and access data within the aperture at a host physical memory address that is not to be obtained through address translation. Other processors are also disclosed, as are methods, systems, and machine-readable medium storing aperture access instructions.

公开(公告)号：US12032485B2

公开(公告)日：2024-07-09

申请号：US17133570

申请日：2020-12-23

申请人： Intel Corporation

发明人： Vedvyas Shanbhogue ,  Gilbert Neiger ,  Stephen Robinson ,  Dan Baum ,  Ron Gabor

IPC分类号： G06F12/10 ,  G06F11/07 ,  G06F12/1027

CPC分类号： G06F12/1027 ,  G06F11/073 ,  G06F2212/657 ,  G06F2212/683

摘要： Techniques to allow use of metadata in unused bits of virtual addresses are described. A processor of an aspect includes a decode circuit to decode a memory access instruction. The instruction to indicate one or more memory address operands that are to have address generation information and metadata. An execution circuit coupled with the decode circuit to generate a 64-bit virtual address based on the one or more memory address operands. The 64-bit virtual address having a bit 63, an X-bit address field starting at a bit 0 to store an address generated from the address generation information, and one or more metadata bits to store the metadata. The execution circuit also to perform a canonicality check on the 64-bit virtual address that does not fail due to non-canonical values of the metadata stored in the one or more metadata bits. Other processors, methods, systems, and instructions are disclosed.

公开(公告)号：US11995001B2

公开(公告)日：2024-05-28

申请号：US17867306

申请日：2022-07-18

申请人： Intel Corporation

发明人： Krystof C. Zmudzinski ,  Siddhartha Chhabra ,  Uday R. Savagaonkar ,  Simon P. Johnson ,  Rebekah M. Leslie-Hurd ,  Francis X. McKeen ,  Gilbert Neiger ,  Raghunandan Makaram ,  Carlos V. Rozas ,  Amy L. Santoni ,  Vincent R. Scarlata ,  Vedvyas Shanbhogue ,  Ilya Alexandrovich ,  Ittai Anati ,  Wesley H. Smith ,  Michael Goldsmith

IPC分类号： G06F12/1009 ,  G06F9/455 ,  G06F12/1027 ,  G06F12/1036 ,  G06F12/1045 ,  G06F12/109 ,  G06F12/14

CPC分类号： G06F12/1009 ,  G06F9/455 ,  G06F9/45558 ,  G06F12/1027 ,  G06F12/1036 ,  G06F12/109 ,  G06F12/1441 ,  G06F2009/45583 ,  G06F12/1045 ,  G06F2212/1016 ,  G06F2212/1052 ,  G06F2212/151 ,  G06F2212/657 ,  G06F2212/684

摘要： A processor for supporting secure memory intent is disclosed. The processor of the disclosure includes a memory execution unit to access memory and a processor core coupled to the memory execution unit. The processor core is to receive a request to access a convertible page of the memory. In response to the request, the processor core to determine an intent for the convertible page in view of a page table entry (PTE) corresponding to the convertible page. The intent indicates whether the convertible page is to be accessed as at least one of a secure page or a non-secure page.

公开(公告)号：US11656899B2

公开(公告)日：2023-05-23

申请号：US17404897

申请日：2021-08-17

申请人： Intel Corporation

发明人： Sanjay Kumar ,  Rajesh M. Sankaran ,  Gilbert Neiger ,  Philip R. Lantz ,  Jason W. Brandt ,  Vedvyas Shanbhogue ,  Utkarsh Y. Kakaiya ,  Kun Tian

IPC分类号： G06F9/455 ,  G06F9/30 ,  G06F12/1045 ,  G06F12/109

CPC分类号： G06F9/45558 ,  G06F9/30138 ,  G06F12/109 ,  G06F12/1063 ,  G06F2009/45579 ,  G06F2212/152

摘要： Implementations of the disclosure provide a processing device comprising an address translation circuit to intercept a work request from an I/O device. The work request comprises a first ASID to map to a work queue. A second ASID of a host is allocated for the first ASID based on the work queue. The second ASID is allocated to at least one of: an ASID register for a dedicated work queue (DWQ) or an ASID translation table for a shared work queue (SWQ). Responsive to receiving a work submission from the SVM client to the I/O device, the first ASID of the application container is translated to the second ASID of the host machine for submission to the I/O device using at least one of: the ASID register for the DWQ or the ASID translation table for the SWQ based on the work queue associated with the I/O device.

公开(公告)号：US20230134657A1

公开(公告)日：2023-05-04

申请号：US17519384

申请日：2021-11-04

申请人： Intel Corporation

发明人： Sanjay Kumar ,  Philip R. Lantz ,  Rajesh M. Sankaran ,  Gilbert Neiger ,  Rupin H. Vakharwala

IPC分类号： G06F9/48 ,  G06F9/455 ,  G06F9/54 ,  G06F13/24

摘要： A system comprises a physical processor to execute a virtual machine manager to run, on a logical core, a virtual machine including a guest user application and a virtual CPU. Circuitry coupled to an external device is to receive an interrupt request from the external device for the guest user application, locate a first interrupt data structure associated with the guest user application, generate a first interrupt with the first interrupt data structure based on a first interrupt vector for the interrupt request, locate a second interrupt data structure associated with the virtual CPU, and generate a first notification interrupt for the virtual CPU with the second interrupt data structure based on a first notification vector in the first interrupt data structure. The circuitry may generate a second notification interrupt for the logical core using a second notification vector and a logical core identifier from the second interrupt data structure.

公开(公告)号：US11614939B2

公开(公告)日：2023-03-28

申请号：US17359337

申请日：2021-06-25

申请人： Intel Corporation

发明人： Ashok Raj ,  Andreas Kleen ,  Gilbert Neiger ,  Beeman Strong ,  Jason Brandt ,  Rupin Vakharwala ,  Jeff Huxel ,  Larisa Novakovsky ,  Ido Ouziel ,  Sarathy Jayakumar

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

摘要： 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：US11163911B2

公开(公告)日：2021-11-02

申请号：US16792941

申请日：2020-02-18

申请人： Intel Corporation

发明人： David M. Durham ,  Gilbert Neiger ,  Barry E. Huntley ,  Ravi L. Sahita ,  Baiju V. Patel

IPC分类号： H04L9/00 ,  G06F21/71 ,  G06F9/455 ,  G06F21/53 ,  G06F21/57 ,  G06F21/78 ,  G06F8/61 ,  H04L9/08

摘要： According to one embodiment, a method comprises executing an untrusted host virtual machine monitor (VMM) to manage execution of at least one guest virtual machine (VM). The VMM receives an encrypted key domain key, an encrypted guest code image, and an encrypted guest control structure. The VM also issues a create command. In response, a processor creates a first key domain comprising a region of memory to be encrypted by a key domain key. The encrypted key domain key is decrypted to produce the key domain key, which is inaccessible to the VMM. The VMM issues a launch command. In response, a first guest VM is launched within the first key domain. In response to a second launch command, a second guest VM is launched within the first key domain. The second guest VM provides an agent to act on behalf of the VMM. Other embodiments are described and claimed.

公开(公告)号：US11023233B2

公开(公告)日：2021-06-01

申请号：US15019112

申请日：2016-02-09

申请人： INTEL CORPORATION

发明人： Michael Mishaeli ,  Jason W. Brandt ,  Gilbert Neiger ,  Asit K. Mallick ,  Rajesh M. Sankaran ,  Raghunandan Makaram ,  Benjamin C. Chaffin ,  James B. Crossland ,  H. Peter Anvin

IPC分类号： G06F9/30 ,  G06F13/40 ,  G06F9/48 ,  G06F9/38

摘要： A processor of an aspect includes a decode unit to decode a user-level suspend thread instruction that is to indicate a first alternate state. The processor also includes an execution unit coupled with the decode unit. The execution unit is to perform the instruction at a user privilege level. The execution unit in response to the instruction, is to: (a) suspend execution of a user-level thread, from which the instruction is to have been received; (b) transition a logical processor, on which the user-level thread was to have been running, to the indicated first alternate state; and (c) resume the execution of the user-level thread, when the logical processor is in the indicated first alternate state, with a latency that is to be less than half a latency that execution of a thread can be resumed when the logical processor is in a halt processor power state.

公开(公告)号：US10922241B2

公开(公告)日：2021-02-16

申请号：US16402442

申请日：2019-05-03

申请人： INTEL CORPORATION

发明人： Krystof C. Zmudzinski ,  Siddhartha Chhabra ,  Uday R. Savagaonkar ,  Simon P. Johnson ,  Rebekah M. Leslie-Hurd ,  Francis X. McKeen ,  Gilbert Neiger ,  Raghunandan Makaram ,  Carlos V. Rozas ,  Amy L. Santoni ,  Vincent R. Scarlata ,  Vedvyas Shanbhogue ,  Ilya Alexandrovich ,  Ittai Anati ,  Wesley H. Smith ,  Michael Goldsmith

IPC分类号： G06F12/1009 ,  G06F12/1027 ,  G06F12/1036 ,  G06F12/109 ,  G06F12/14 ,  G06F9/455 ,  G06F12/1045

摘要： A processor for supporting secure memory intent is disclosed. The processor of the disclosure includes a memory execution unit to access memory and a processor core coupled to the memory execution unit. The processor core is to receive a request to access a convertible page of the memory. In response to the request, the processor core to determine an intent for the convertible page in view of a page table entry (PTE) corresponding to the convertible page. The intent indicates whether the convertible page is to be accessed as at least one of a secure page or a non-secure page.