Title:
MEMORY ACCESS CONTROL METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/082232
Kind Code:
A1
Abstract:
The present application discloses a memory access control method and apparatus, which are used for achieving memory partition isolation, reducing software overhead, and reducing memory isolation granularity. The method comprises: configuring a memory tag for at least one memory domain; before running any of the at least one memory domains, such as a first memory domain, if the first memory domain is configured with a memory tag, then releasing the memory tag of the first memory domain; and after determining that the first memory domain does not have a memory tag, running the first memory domain. The solution can non-invasively modify an application program without needing to re-compile program code and without needing to increase the size of the application program, thereby reducing implementation costs; relative to other memory isolation solutions implemented using software or hardware, the invention reduces performance overhead, for instance, reducing user state and kernel context switching overhead; the invention further achieves fine-grained memory access control.
Inventors:
CAO JIANLONG (CN)
TAO ZHE (CN)
CUI AIGUO (CN)
TAO ZHE (CN)
CUI AIGUO (CN)
Application Number:
PCT/CN2022/126519
Publication Date:
April 25, 2024
Filing Date:
October 20, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F12/14
Domestic Patent References:
| WO2021240160A1 | 2021-12-02 |
Foreign References:
| US20190196977A1 | 2019-06-27 | |||
| US20210200684A1 | 2021-07-01 | |||
| CN112970019A | 2021-06-15 | |||
| CN110554911A | 2019-12-10 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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