CN114556881A - 一种地址翻译方法及装置 - Google Patents

一种地址翻译方法及装置 Download PDF

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CN114556881A
CN114556881A CN201980101414.4A CN201980101414A CN114556881A CN 114556881 A CN114556881 A CN 114556881A CN 201980101414 A CN201980101414 A CN 201980101414A CN 114556881 A CN114556881 A CN 114556881A
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address
virtual
page table
sub
page tables
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CN201980101414.4A
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CN114556881B (zh
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刘君龙
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1009—Address translation using page tables, e.g. page table structures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/109—Address translation for multiple virtual address spaces, e.g. segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1072—Decentralised address translation, e.g. in distributed shared memory systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1081—Address translation for peripheral access to main memory, e.g. direct memory access [DMA]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/10—Providing a specific technical effect
    • G06F2212/1016—Performance improvement
    • G06F2212/1024—Latency reduction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/15—Use in a specific computing environment
    • G06F2212/154—Networked environment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/65—Details of virtual memory and virtual address translation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/65—Details of virtual memory and virtual address translation
    • G06F2212/657—Virtual address space management

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

公开了地址翻译方法及装置，涉及计算机领域，解决了PCIe设备获取页表的时延较大的问题。该地址翻译装置包括：接口，用于从PCIe设备接收一个地址翻译请求报文，该地址翻译请求报文包括第一虚拟地址和第一虚拟存储空间的大小，该第一虚拟地址为第一虚拟存储空间的虚拟起始地址；地址翻译单元，用于根据第一虚拟存储空间确定P个大小相同的子页表，每个子页表用于指示虚拟地址到物理地址的映射关系，该P个子页表的大小之和等于第一虚拟存储空间的大小，P为整数，P≥1；该接口，还用于发送一个地址翻译响应报文给该PCIe设备，该地址翻译响应报文包括该P个子页表的物理起始地址和该P个子页表的大小。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN201980101414.4A 2019-10-17 2019-10-17 一种地址翻译方法及装置 Active CN114556881B (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114780466A (zh) * 2022-06-24 2022-07-22 沐曦科技(北京)有限公司 一种基于dma的数据复制延时的优化方法
CN116107935A (zh) * 2022-12-30 2023-05-12 芯动微电子科技(武汉)有限公司 一种基于PCIe地址转换服务机制的ATC实现方法
CN116680202A (zh) * 2023-08-03 2023-09-01 深流微智能科技(深圳)有限公司 一种调试处理内存区的管理方法、系统及存储介质

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115811509A (zh) * 2021-09-14 2023-03-17 华为技术有限公司 一种总线通信方法及相关设备

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US20070168643A1 (en) * 2006-01-17 2007-07-19 Hummel Mark D DMA Address Translation in an IOMMU
CN101080701A (zh) * 2004-12-14 2007-11-28 索尼计算机娱乐公司 用于从外部设备到处理器的存储器的地址翻译的方法和装置
US20150058594A1 (en) * 2013-08-22 2015-02-26 International Business Machines Corporation Splitting direct memory access windows
CN105989758A (zh) * 2015-02-05 2016-10-05 龙芯中科技术有限公司 地址翻译方法和装置
US20180011651A1 (en) * 2016-07-11 2018-01-11 Intel Corporation Restricted address translation to protect against device-tlb vulnerabilities

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US20050283602A1 (en) * 2004-06-21 2005-12-22 Balaji Vembu Apparatus and method for protected execution of graphics applications
JP2008098813A (ja) * 2006-10-10 2008-04-24 Matsushita Electric Ind Co Ltd 情報通信装置、情報通信方法、及びプログラム
CN103116555B (zh) * 2013-03-05 2014-03-05 中国人民解放军国防科学技术大学 基于多体并行缓存结构的数据访问方法
US10997083B2 (en) * 2018-09-04 2021-05-04 Arm Limited Parallel page table entry access when performing address translations
GB2582362B (en) * 2019-03-21 2021-08-04 Advanced Risc Mach Ltd Page table structure

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
CN101080701A (zh) * 2004-12-14 2007-11-28 索尼计算机娱乐公司 用于从外部设备到处理器的存储器的地址翻译的方法和装置
US20070168643A1 (en) * 2006-01-17 2007-07-19 Hummel Mark D DMA Address Translation in an IOMMU
US20150058594A1 (en) * 2013-08-22 2015-02-26 International Business Machines Corporation Splitting direct memory access windows
CN105989758A (zh) * 2015-02-05 2016-10-05 龙芯中科技术有限公司 地址翻译方法和装置
US20180011651A1 (en) * 2016-07-11 2018-01-11 Intel Corporation Restricted address translation to protect against device-tlb vulnerabilities

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114780466A (zh) * 2022-06-24 2022-07-22 沐曦科技(北京)有限公司 一种基于dma的数据复制延时的优化方法
CN114780466B (zh) * 2022-06-24 2022-09-02 沐曦科技(北京)有限公司 一种基于dma的数据复制延时的优化方法
CN116107935A (zh) * 2022-12-30 2023-05-12 芯动微电子科技(武汉)有限公司 一种基于PCIe地址转换服务机制的ATC实现方法
CN116107935B (zh) * 2022-12-30 2023-08-22 芯动微电子科技(武汉)有限公司 一种基于PCIe地址转换服务机制的ATC实现方法
CN116680202A (zh) * 2023-08-03 2023-09-01 深流微智能科技(深圳)有限公司 一种调试处理内存区的管理方法、系统及存储介质
CN116680202B (zh) * 2023-08-03 2024-01-02 深流微智能科技(深圳)有限公司 一种调试处理内存区的管理方法、系统及存储介质

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US20220245067A1 (en) 2022-08-04
EP4036741A1 (en) 2022-08-03
CN114556881B (zh) 2022-12-13
EP4036741A4 (en) 2022-08-03
WO2021072721A1 (zh) 2021-04-22

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