Sign in
Sign up
Explore
Enterprise
Education
Search
Help
Terms of use
About Us
Explore
Enterprise
Education
Gitee Premium
Gitee AI
AI teammates
Sign in
Sign up
Fetch the repository succeeded.
Open Source
>
Other
>
Operation System
&&
Donate
Please sign in before you donate.
Cancel
Sign in
Scan WeChat QR to Pay
Cancel
Complete
Prompt
Switch to Alipay.
OK
Cancel
Watch
Unwatch
Watching
Releases Only
Ignoring
128
Star
73
Fork
331
src-openEuler
/
kernel
Code
Issues
1295
Pull Requests
42
Wiki
Insights
Pipelines
Service
JavaDoc
PHPDoc
Quality Analysis
Jenkins for Gitee
Tencent CloudBase
Tencent Cloud Serverless
悬镜安全
Aliyun SAE
Codeblitz
SBOM
Don’t show this again
Update failed. Please try again later!
Remove this flag
Content Risk Flag
This task is identified by
as the content contains sensitive information such as code security bugs, privacy leaks, etc., so it is only accessible to contributors of this repository.
remap_pfn_range 支持大页映射
Done
#ID4NL4
内核需求
yintirui
Opened this issue
2025-11-03 10:59
<!-- #请根据issue的类型在标题右侧下拉框中选择对应的选项（需求、缺陷或CVE等）--> <!-- #请根据issue相关的版本在里程碑中选择对应的节点，若是与版本无关，请选择“不关联里程碑”--> 【特性描述】从使用者视角简要说明特性的功能（尽量使用正向表达方式） 当前社区函数remap_pfn_range()仅支持按照基础PTE的级别进行映射，为支持PMD级别大页映射，我们提供了remap_pfn_range_try_pmd()； 该函数旨在使用大页优化内存映射的性能，在标准的remap_pfn_range基础上，尝试使用PMD级别的大页映射来优化内存映射性能。当满足特定条件时（如地址对齐、大小合适），函数会创建PMD级别的大页映射，从而减少页表项数量，提升TLB命中率和内存访问效率。 该功能主要针对ARM64架构设计，提供了nohugepfnmap内核参数供用户是否启用大页映射行为。 【特性收益】简要说明该特性解决的问题，或带来的收益。（可选） 可以减少页表项数量，提升TLB命令率和内存访问效率。 【适用场景】简单该特性预期的使用场景。（可选） 驱动通过remap_pfn_range映射内存时可以考虑使用remap_pfn_range_try_pmd来进行PMD级别的大页映射。 【交付个人/团队】请明确交付责任人，如果有团队支撑，请一并填写团队信息。（可选） yintirui@huawei.com
<!-- #请根据issue的类型在标题右侧下拉框中选择对应的选项（需求、缺陷或CVE等）--> <!-- #请根据issue相关的版本在里程碑中选择对应的节点，若是与版本无关，请选择“不关联里程碑”--> 【特性描述】从使用者视角简要说明特性的功能（尽量使用正向表达方式） 当前社区函数remap_pfn_range()仅支持按照基础PTE的级别进行映射，为支持PMD级别大页映射，我们提供了remap_pfn_range_try_pmd()； 该函数旨在使用大页优化内存映射的性能，在标准的remap_pfn_range基础上，尝试使用PMD级别的大页映射来优化内存映射性能。当满足特定条件时（如地址对齐、大小合适），函数会创建PMD级别的大页映射，从而减少页表项数量，提升TLB命中率和内存访问效率。 该功能主要针对ARM64架构设计，提供了nohugepfnmap内核参数供用户是否启用大页映射行为。 【特性收益】简要说明该特性解决的问题，或带来的收益。（可选） 可以减少页表项数量，提升TLB命令率和内存访问效率。 【适用场景】简单该特性预期的使用场景。（可选） 驱动通过remap_pfn_range映射内存时可以考虑使用remap_pfn_range_try_pmd来进行PMD级别的大页映射。 【交付个人/团队】请明确交付责任人，如果有团队支撑，请一并填写团队信息。（可选） yintirui@huawei.com
Comments (
1
)
Sign in
to comment
Status
Done
新建
已接纳
In Development
拟拒绝
Canceled
Declined
Done
Assignees
Not set
Labels
sig/Kernel
Not set
Projects
Unprojected
Unprojected
Milestones
No related milestones
No related milestones
Pull Requests
None yet
None yet
Successfully merging a pull request will close this issue.
Branches
No related branch
Branches (38)
Tags (271)
master
openEuler-24.03-LTS-SP3
openEuler-22.03-LTS-SP4
openEuler-22.03-LTS-SP3
openEuler-24.03-LTS
openEuler-24.03-LTS-SP1
openEuler-24.03-LTS-SP2
openEuler-20.03-LTS-SP4
openEuler-25.09
openEuler-24.03-LTS-Next
openEuler-25.03
openEuler-22.03-LTS-SP2
openEuler-22.03-LTS-SP1
openEuler-22.03-LTS-SP4-64KB
openEuler-24.09
openEuler-22.03-LTS-Next
openEuler-24.03-LTS-Loongarch
openEuler-22.03-LTS
openEuler-20.03-LTS-SP1
sync-pr1519-openEuler-24.03-LTS-to-openEuler-24.03-LTS-Next
sync-pr1486-master-to-openEuler-24.03-LTS-Next
loongarch-support
openEuler-20.03-LTS-SP3
sync-pr1314-openEuler-22.03-LTS-SP3-to-openEuler-22.03-LTS-Next
openEuler-23.09
openEuler-23.03
openEuler-22.03-LTS-LoongArch
openEuler-22.09
openEuler-22.09-HeXin
openEuler-20.03-LTS-SP2
openEuler-21.09
openEuler-20.03-LTS
openEuler-20.03-LTS-Next
openEuler-21.03
openEuler-20.09
openEuler-20.03-LTS-SP1-testing
openEuler1.0
openEuler1.0-base
openEuler-24.03-LTS-SP1-update-20251024
openEuler-20.03-LTS-SP4-update-20251024
openEuler-24.03-LTS-update-20251024
openEuler-22.03-LTS-SP3-update-20251024
openEuler-22.03-LTS-SP4-update-20251024
openEuler-24.03-LTS-SP2-update-20251024
openEuler-20.03-LTS-SP4-update-20251017
openEuler-22.03-LTS-SP3-update-20251017
openEuler-24.03-LTS-update-20251017
openEuler-24.03-LTS-SP1-update-20251017
openEuler-24.03-LTS-SP2-update-20251017
openEuler-22.03-LTS-SP4-update-20251017
openEuler-20.03-LTS-SP4-update-20251011
openEuler-22.03-LTS-SP4-update-20251011
openEuler-22.03-LTS-SP3-update-20251011
openEuler-24.03-LTS-update-20250929
openEuler-25.09-release
openEuler-20.03-LTS-SP4-update-20250926
openEuler-24.03-LTS-update-20250926
openEuler-22.03-LTS-SP3-update-20250926
openEuler-22.03-LTS-SP4-update-20250926
openEuler-24.03-LTS-SP1-update-20250926
openEuler-24.03-LTS-SP2-update-20250926
openEuler-20.03-LTS-SP4-update-20250919
openEuler-22.03-LTS-SP3-update-20250919
openEuler-24.03-LTS-update-20250919
openEuler-22.03-LTS-SP4-update-20250919
openEuler-24.03-LTS-SP1-update-20250919
openEuler-24.03-LTS-SP2-update-20250919
openEuler-20.03-LTS-SP4-update-20250912
openEuler-22.03-LTS-SP3-update-20250912
openEuler-22.03-LTS-SP4-update-20250912
openEuler-24.03-LTS-update-20250912
openEuler-24.03-LTS-SP1-update-20250912
openEuler-24.03-LTS-SP2-update-20250912
openEuler-24.03-LTS-SP1-update-20250911
openEuler-24.03-LTS-update-20250905
openEuler-20.03-LTS-SP4-update-20250905
openEuler-22.03-LTS-SP3-update-20250905
openEuler-22.03-LTS-SP4-update-20250905
openEuler-24.03-LTS-SP1-update-20250905
openEuler-24.03-LTS-SP2-update-20250905
openEuler-20.03-LTS-SP4-update-20250829
openEuler-22.03-LTS-SP4-update-20250829
openEuler-24.03-LTS-SP1-update-20250829
openEuler-24.03-LTS-update-20250829
openEuler-24.03-LTS-SP2-update-20250829
openEuler-22.03-LTS-SP3-update-20250822
openEuler-22.03-LTS-SP4-update-20250822
openEuler-24.03-LTS-update-20250822
openEuler-24.03-LTS-SP1-update-20250822
openEuler-24.03-LTS-SP2-update-20250822
openEuler-22.03-LTS-SP4-update-20250815
openEuler-22.03-LTS-SP3-update-20250815
openEuler-24.03-LTS-SP2-update-20250815
openEuler-20.03-LTS-SP4-update-20250815
openEuler-24.03-LTS-update-20250815
openEuler-24.03-LTS-SP1-update-20250815
openEuler-20.03-LTS-SP4-update-20250808
openEuler-22.03-LTS-SP3-update-20250808
openEuler-22.03-LTS-SP4-update-20250808
openEuler-24.03-LTS-update-20250808
openEuler-24.03-LTS-SP1-update-20250808
openEuler-24.03-LTS-SP2-update-20250808
openEuler-22.03-LTS-SP3-update-20250801
openEuler-22.03-LTS-SP4-update-20250801
openEuler-24.03-LTS-update-20250801
openEuler-24.03-LTS-SP1-update-20250801
openEuler-24.03-LTS-SP2-update-20250801
openEuler-20.03-LTS-SP4-update-20250725
openEuler-22.03-LTS-SP3-update-20250725
openEuler-22.03-LTS-SP4-update-20250725
openEuler-24.03-LTS-update-20250725
openEuler-24.03-LTS-SP1-update-20250725
openEuler-24.03-LTS-SP2-update-20250725
openEuler-20.03-LTS-SP4-update-20250718
openEuler-22.03-LTS-SP3-update-20250718
openEuler-22.03-LTS-SP4-update-20250718
openEuler-24.03-LTS-update-20250718
openEuler-24.03-LTS-SP1-update-20250718
openEuler-24.03-LTS-SP2-update-20250718
openEuler-20.03-LTS-SP4-update-20250711
openEuler-22.03-LTS-SP3-update-20250711
openEuler-22.03-LTS-SP4-update-20250711
openEuler-24.03-LTS-update-20250711
openEuler-24.03-LTS-SP1-update-20250711
openEuler-20.03-LTS-SP4-update-20250704
openEuler-22.03-LTS-SP3-update-20250704
openEuler-22.03-LTS-SP4-update-20250704
openEuler-24.03-LTS-update-20250704
openEuler-24.03-LTS-SP1-update-20250704
openEuler-20.03-LTS-SP4-update-20250627
openEuler-22.03-LTS-SP3-update-20250627
openEuler-22.03-LTS-SP4-update-20250627
openEuler-20.03-LTS-SP4-update-20250620
openEuler-22.03-LTS-SP3-update-20250620
openEuler-22.03-LTS-SP4-update-20250620
openEuler-24.03-LTS-update-20250620
openEuler-24.03-LTS-SP1-update-20250620
openEuler-24.03-LTS-SP2-release
openEuler-20.03-LTS-SP4-update-20250613
openEuler-22.03-LTS-SP3-update-20250613
openEuler-22.03-LTS-SP4-update-20250613
openEuler-24.03-LTS-update-20250613
openEuler-24.03-LTS-SP1-update-20250613
openEuler-20.03-LTS-SP4-update-20250606
openEuler-22.03-LTS-SP3-update-20250606
openEuler-22.03-LTS-SP4-update-20250606
openEuler-24.03-LTS-update-20250606
openEuler-24.03-LTS-SP1-update-20250606
openEuler-20.03-LTS-SP4-update-20250530
openEuler-22.03-LTS-SP3-update-20250530
openEuler-22.03-LTS-SP4-update-20250530
openEuler-24.03-LTS-update-20250530
openEuler-24.03-LTS-SP1-update-20250530
openEuler-20.03-LTS-SP4-update-20250523
openEuler-24.03-LTS-update-20250523
openEuler-24.03-LTS-SP1-update-20250523
openEuler-24.03-LTS-SP1-update-20250516
openEuler-24.03-LTS-update-20250516
openEuler-22.03-LTS-SP4-update-20250516
openEuler-22.03-LTS-SP3-update-20250516
openEuler-20.03-LTS-SP4-update-20250516
openEuler-24.03-LTS-SP1-update-20250509
openEuler-24.03-LTS-update-20250509
openEuler-22.03-LTS-SP4-update-20250509
openEuler-22.03-LTS-SP3-update-20250509
openEuler-20.03-LTS-SP4-update-20250509
openEuler-24.03-LTS-update-20250425
openEuler-22.03-LTS-SP3-update-20250425
openEuler-24.03-LTS-SP1-update-20250425
openEuler-24.03-LTS-SP1-update-20250428
openEuler-22.03-LTS-SP4-update-20250425
openEuler-20.03-LTS-SP4-update-20250425
openEuler-22.03-LTS-SP3-update-20250418
openEuler-22.03-LTS-SP4-update-20250418
openEuler-20.03-LTS-SP4-update-20250418
openEuler-22.03-LTS-SP3-update-20250411
openEuler-22.03-LTS-SP4-update-20250411
openEuler-20.03-LTS-SP4-update-20250411
openEuler-20.03-LTS-SP4-update-20250403
openEuler-24.03-LTS-SP1-update-20250403
openEuler-24.03-LTS-update-20250403
openEuler-25.03-release
openEuler-20.03-LTS-SP4-update-20250329
openEuler-22.03-LTS-SP4-update-20250329
openEuler-22.03-LTS-SP3-update-20250329
openEuler-24.03-LTS-SP1-update-20250329
openEuler-24.03-LTS-update-20250329
openEuler-24.03-LTS-update-20250321
openEuler-24.03-LTS-SP1-update-20250321
openEuler-20.03-LTS-SP4-update-20250321
openEuler-24.03-LTS-update-20250314
openEuler-24.03-LTS-SP1-update-20250314
openEuler-22.03-LTS-SP3-update-20250314
openEuler-22.03-LTS-SP4-update-20250314
openEuler-20.03-LTS-SP4-update-20250314
openEuler-24.03-LTS-update-20250307
openEuler-24.03-LTS-SP1-update-20250307
openEuler-22.03-LTS-SP3-update-20250307
openEuler-22.03-LTS-SP4-update-20250307
openEuler-20.03-LTS-SP4-update-20250307
openEuler-24.03-LTS-update-20250228
openEuler-24.03-LTS-SP1-update-20250228
openEuler-22.03-LTS-SP3-update-20250228
openEuler-22.03-LTS-SP4-update-20250228
openEuler-20.03-LTS-SP4-update-20250228
openEuler-24.03-LTS-SP1-update-20250221
openEuler-24.03-LTS-update-20250221
openEuler-22.03-LTS-SP4-update-20250221
openEuler-22.03-LTS-SP3-update-20250221
openEuler-20.03-LTS-SP4-update-20250221
openEuler-24.03-LTS-update-20250214
openEuler-24.03-LTS-SP1-update-20250214
openEuler-22.03-LTS-SP4-update-20250214
openEuler-22.03-LTS-SP3-update-20250214
openEuler-20.03-LTS-SP4-update-20250214
openEuler-24.03-LTS-update-20250208
openEuler-20.03-LTS-SP4-update-20250208
openEuler-22.03-LTS-SP3-update-20250208
openEuler-22.03-LTS-SP4-update-20250208
openEuler-24.03-LTS-SP1-update-20250208
openEuler-24.03-LTS-SP1-update-20250124
openEuler-22.03-LTS-SP4-update-20250124
openEuler-22.03-LTS-SP3-update-20250124
openEuler-20.03-LTS-SP4-update-20250124
openEuler-24.03-LTS-update-20250124
openEuler-22.03-LTS-SP3-update-20250117
openEuler-22.03-LTS-SP4-update-20250117
openEuler-20.03-LTS-SP4-update-20250117
openEuler-24.03-LTS-update-20250110
openEuler-24.03-LTS-SP1-update-20250110
openEuler-22.03-LTS-SP1-update-20250110
openEuler-22.03-LTS-SP3-update-20250110
openEuler-20.03-LTS-SP4-update-20250110
openEuler-22.03-LTS-SP4-update-20250110
openEuler-22.03-LTS-SP4-update-20250103
openEuler-22.03-LTS-SP3-update-20250103
openEuler-22.03-LTS-SP1-update-20250103
openEuler-20.03-LTS-SP4-update-20250103
openEuler-24.03-LTS-SP1-release
openEuler-24.03-LTS-update-20241227
openEuler-22.03-LTS-SP3-update-20241227
openEuler-22.03-LTS-SP4-update-20241227
openEuler-20.03-LTS-SP4-update-20241227
openEuler-22.03-LTS-SP4-update-20241220
openEuler-22.03-LTS-SP3-update-20241220
openEuler-20.03-LTS-SP4-update-20241220
openEuler-24.03-LTS-update-20241213
openEuler-22.03-LTS-SP4-update-20241213
openEuler-22.03-LTS-SP3-update-20241213
openEuler-22.03-LTS-SP1-update-20241213
openEuler-20.03-LTS-SP4-update-20241213
openEuler-24.03-LTS-update-20241206
openEuler-22.03-LTS-SP4-update-20241206
openEuler-22.03-LTS-SP3-update-20241206
openEuler-22.03-LTS-SP1-update-20241206
openEuler-20.03-LTS-SP4-update-20241206
openEuler-20.03-LTS-SP4-update-20241129
openEuler-22.03-LTS-SP1-update-20241129
openEuler-22.03-LTS-SP3-update-20241129
openEuler-22.03-LTS-SP4-update-20241129
openEuler-24.03-LTS-update-20241129
openEuler-24.03-LTS-update-20241122
openEuler-22.03-LTS-SP4-update-20241122
openEuler-22.03-LTS-SP3-update-20241122
openEuler-22.03-LTS-SP1-update-20241122
openEuler-20.03-LTS-SP4-update-20241122
openEuler-20.03-LTS-SP4-update-20241115
openEuler-22.03-LTS-SP1-update-20241115
openEuler-22.03-LTS-SP3-update-20241115
openEuler-22.03-LTS-SP4-update-20241115
openEuler-24.03-LTS-update-20241115
openEuler-24.03-LTS-update-20241108
openEuler-22.03-LTS-SP4-update-20241108
openEuler-22.03-LTS-SP3-update-20241108
openEuler-22.03-LTS-SP1-update-20241108
openEuler-20.03-LTS-SP4-update-20241108
openEuler-22.03-LTS-SP4-update-before-20241025
openEuler-22.03-LTS-SP4-before-20241025
openEuler-24.03-LTS-update-before-20241025
openEuler-20.03-LTS-SP4-update-20241101
openEuler-22.03-LTS-SP1-update-20241101
openEuler-22.03-LTS-SP3-update-20241101
openEuler-22.03-LTS-SP4-update-20241101
openEuler-24.03-LTS-update-20241101
openEuler-20.03-LTS-SP4-update-20241025
openEuler-22.03-LTS-SP1-update-20241025
openEuler-22.03-LTS-SP3-update-20241025
openEuler-22.03-LTS-SP4-update-20241025
openEuler-24.03-LTS-update-20241025
openEuler-22.03-LTS-SP4-release
openEuler-24.09-release
openEuler-24.03-LTS-release
openEuler-22.03-LTS-SP3-release
openEuler-23.09-rc5
openEuler-22.03-LTS-SP1-release
openEuler-22.09-release
openEuler-22.09-rc5
openEuler-22.09-20220829
openEuler-22.03-LTS-20220331
openEuler-22.03-LTS-round5
openEuler-22.03-LTS-round3
openEuler-22.03-LTS-round2
openEuler-22.03-LTS-round1
openEuler-20.03-LTS-SP3-release
openEuler-20.03-LTS-SP2-20210624
openEuler-21.03-20210330
openEuler-20.09-20200929
openEuler-20.03-LTS-20200606
openEuler-20.03-LTS-tag
Planed to start - Planed to end
-
Top level
Not Top
Top Level: High
Top Level: Medium
Top Level: Low
Priority
Not specified
Serious
Main
Secondary
Unimportant
Duration
（hours）
参与者（1）
1
https://gitee.com/src-openeuler/kernel.git
git@gitee.com:src-openeuler/kernel.git
src-openeuler
kernel
kernel
Going to Help Center
Search
Git 命令在线学习
如何在 Gitee 导入 GitHub 仓库
Git 仓库基础操作
企业版和社区版功能对比
SSH 公钥设置
如何处理代码冲突
仓库体积过大，如何减小？
如何找回被删除的仓库数据
Gitee 产品配额说明
GitHub仓库快速导入Gitee及同步更新
什么是 Release（发行版）
将 PHP 项目自动发布到 packagist.org
Repository Report
Back to the top
Login prompt
This operation requires login to the code cloud account. Please log in before operating.
Go to login
No account. Register
