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feat(mm): 实现缺页中断处理 #715

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merged 16 commits into from
Apr 22, 2024
Merged

feat(mm): 实现缺页中断处理 #715

merged 16 commits into from
Apr 22, 2024

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MemoryShore
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  • 实现内存映射的延迟分配：vma分配的空间会在访问时才进行物理内存分配
  • 实现父子进程的写时拷贝：创建子进程时父子进程会共享相同的物理内存，进程拷贝时会将共享页设置为只读，写入时触发写时拷贝

@MemoryShore MemoryShore reopened this Apr 11, 2024
@dragonosbot dragonosbot added O-riscv64 Target: riscv64 O-x86_64 Target: x86_64 labels Apr 11, 2024
@fslongjin fslongjin added the A-mm Area: 内存管理子系统 label Apr 12, 2024
@fslongjin fslongjin added this to the DragonOS 0.1.10 milestone Apr 12, 2024
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fslongjin
fslongjin requested changes Apr 14, 2024
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kernel/src/mm/page.rs Outdated Show resolved Hide resolved
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@dragonosbot dragonosbot added the S-等待作者修改 Status: 这正在等待作者的一些操作（例如代码更改或更多信息）。 label Apr 14, 2024
@Chiichen Chiichen changed the title 实现缺页中断处理 feat(mm): 实现缺页中断处理 Apr 14, 2024
fslongjin
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@dragonosbot dragonosbot removed the S-等待作者修改 Status: 这正在等待作者的一些操作（例如代码更改或更多信息）。 label Apr 20, 2024
@dragonosbot dragonosbot added the S-等待审查 Status: 等待assignee以及相关方的审查。 label Apr 20, 2024
@MemoryShore MemoryShore requested a review from fslongjin April 20, 2024 14:48
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@GnoCiYeH 看一下这个，我个人感觉没问题。

@fslongjin fslongjin requested a review from Jomocool April 21, 2024 05:31
@fslongjin fslongjin merged commit a17651b into DragonOS-Community:master Apr 22, 2024
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BrahmaMantra pushed a commit to BrahmaMantra/DragonOS that referenced this pull request Dec 9, 2024
@MemoryShore @BrahmaMantra
feat(mm): 实现缺页中断处理，支持页面延迟分配和写时拷贝，以及用户栈自动拓展 (DragonOS-Community#715)
a64daa8 
* 实现缺页中断处理

* 完善页表拷贝逻辑

* 优化代码结构

* 完善缺页异常信息

* 修改大页映射逻辑

* 修正大页映射错误

* 添加缺页中断支持标志

* 实现用户栈自动拓展功能
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@Jomocool Jomocool Jomocool approved these changes

@fslongjin fslongjin fslongjin approved these changes

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A-mm Area: 内存管理子系统 O-riscv64 Target: riscv64 O-x86_64 Target: x86_64 S-等待审查 Status: 等待assignee以及相关方的审查。
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@MemoryShore @fslongjin @Jomocool @dragonosbot