Title:
MEMORY PAGING METHOD AND SYSTEM, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/155694
Kind Code:
A1
Abstract:
Embodiments of the application provides a memory paging method and system, and a storage medium. In embodiments of the present application, for an IOMMU which does not support Page fault, a VMM can determine a GPA needing a page update, and determine a first HPA corresponding to the GPA from a page table stored in the IOMMU of a host; and determine a second HPA for replacing the first HPA from idle physical addresses stored in the host; further, data stored in the first HPA can be copied to the second HPA; and update the HPA which corresponds to the GPA needing update and is recorded in the page table of the IOMMU to the second HPA, and thus, page table replacement is implemented for the IOMMU which does not support Page fault.
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Inventors:
XU YUN (CN)
Application Number:
PCT/CN2023/074406
Publication Date:
August 24, 2023
Filing Date:
February 03, 2023
Export Citation:
Assignee:
ALIBABA CLOUD COMPUTING LTD (CN)
International Classes:
G06F9/455
Foreign References:
| CN114201269A | 2022-03-18 | |||
| CN103597451A | 2014-02-19 | |||
| CN111966468A | 2020-11-20 | |||
| CN112241310A | 2021-01-19 | |||
| CN112925606A | 2021-06-08 | |||
| CN202210150479A | 2022-02-18 |
Other References:
徐宇 (XU, YU): "受控直通技术在设备内存虚拟化中的研究与优化 (Non-Official Translation: Research and Optimization of Controlled Pass-Through Technology in Device Memory Virtualization)", 中国优秀硕士学位论文全文数据库 (CHINA MASTER'S THESES FULL-TEXT DATABASE), no. 01, 15 January 2020 (2020-01-15)
Attorney, Agent or Firm:
BEIJING TONGJUN LAW FIRM et al. (CN)
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