Failed #27
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Failed #27
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Caution Review failedThe pull request is closed. WalkthroughThe changes introduce a comprehensive overhaul of the kernel's virtual memory manager, including a new, robust implementation with improved address translation, synchronization, error handling, and statistics tracking. The public API is expanded and standardized, with new functions and enums. Additional formatting tweaks are made to panic outputs, and a new test file is added to the build configuration. Minor changes are also made to interrupt and kernel core files. Changes
Sequence Diagram(s)sequenceDiagram
participant Kernel as KernelMain
participant VMem as VirtualMemoryManager
participant Spinlock as Spinlock
participant PageTables as PageTables
participant PhysMem as PhysicalMemory
Kernel->>VMem: VMemInit()
VMem->>Spinlock: Initialize spinlock
VMem->>PhysMem: Allocate PML4 page
PhysMem-->>VMem: Physical address
VMem->>PageTables: Zero PML4 via virtual address
VMem-->>Kernel: Initialization complete
Kernel->>VMem: VMemAlloc(size)
VMem->>Spinlock: Acquire lock
loop For each page
VMem->>PhysMem: Allocate physical page
VMem->>PageTables: Map virtual to physical
PageTables->>Spinlock: (locked)
end
VMem->>Spinlock: Release lock
VMem-->>Kernel: Return virtual address
Kernel->>VMem: VMemUnmap(vaddr, size)
VMem->>Spinlock: Acquire lock
loop For each page
VMem->>PageTables: Unmap entry, flush TLB
VMem->>PhysMem: Free physical page
end
VMem->>Spinlock: Release lock
VMem-->>Kernel: Unmapping complete
Poem
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Summary by CodeRabbit
New Features
Bug Fixes
Refactor
Chores