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Processor with advanced OS support

A technology of operating system and state processor, applied in the direction of electrical digital data processing, instruments, machine execution devices, etc.

Active Publication Date: 2021-11-30
OPTIMUM SEMICON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the operating system attempts to map a virtual memory page to a "real" memory page, this attempt causes an interrupt to the hypervisor layer

Method used

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  • Processor with advanced OS support
  • Processor with advanced OS support
  • Processor with advanced OS support

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Experimental program
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Embodiment Construction

[0058] Embodiments of the present disclosure describe the architecture and implementation of computer processors that address several issues related to the implementation of operating systems on modern processors. These include abstracting the specification of implementing operating system routines with the help of trap instructions, introducing an additional privilege level to account for the hypervisor, distinguishing interrupts that interrupt all threads from interrupts that interrupt only one thread, and implementing resource allocation between hardware threads Shared control of control.

[0059] Interrupts and exceptions are organized into different groups called levels. Each level has multiple interrupts / exceptions organized by priority.

[0060] Interrupts are nested by level. Interrupts belonging to higher priority levels can interrupt running interrupt handlers belonging to lower priority levels, as well as interrupt user code. When an interrupt is asserted, the in...

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Abstract

A computer processor may include multiple hardware threads. A computer processor may also include state processor logic for the state of the hardware threads. The state processor logic may include per-thread logic, which may contain state replicated in each of the plurality of hardware threads, and common logic, which is independent of each of the plurality of hardware threads. The computer processor may also include single thread mode logic to execute instructions from only one hardware thread of the plurality of hardware threads in the single thread mode. The computer processor may also include second mode logic to concurrently execute instructions from more than one hardware thread of the plurality of hardware threads in the second mode. The computer processor may also include switch mode logic to switch between the first mode and the second mode.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Utility Patent Application No. 15 / 155,570, filed May 16, 2016, which claims the benefits of U.S. Provisional Patent Application No. 62 / 172,860, filed June 9, 2015 Interested, the disclosures of these applications are hereby incorporated by reference in their entirety. technical field [0003] Embodiments of the present disclosure relate to computer processors, and in particular to computer processors with advanced operating system support. Background technique [0004] An operating system has several responsibilities. Operating systems need to isolate processes from each other. Specifically, the operating system needs to allow multiple programs to run without interfering with each other. In particular, the process should prevent erroneous or malicious programs from observing other processes or causing damage to other processes. [0005] The operating system needs to coord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/46
CPCG06F9/3851G06F9/462G06F9/30189G06F9/3005G06F9/30145G06F9/45541G06F9/48G06F9/30123
Inventor G·纳赛尔C·J·格罗斯尼尔A·J·赫内P·赫特利M·森蒂尔威兰其他发明人请求不公开姓名
Owner OPTIMUM SEMICON TECH