refactor: promote new architecture to repository root

Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior.

19 files changed, 0 insertions, 1101 deletions

diff --git a/include/kernel/buf.h b/include/kernel/buf.h
deleted file mode 100644
index d0d849c..0000000
--- a/include/kernel/buf.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-#include "kernel/spinlock.h"
-
-#define BSIZE 1024
-#define NBUF 30
-
-struct Buf
-{
-    int valid;        // Whether the data has been read from the disk (1=valid, 0=invalid)
-    int disk;         // Whether it has been held by the driver (dirty bit/write-back flag is usually extended here)
-    uint32 dev;       // Device Number
-    uint32 blockno;   // Block number
-    uint32 refcnt;    // Reference Counting
-    struct Buf *prev; // LRU linked list
-    struct Buf *next;
-    uchar data[BSIZE];
-
-    Mutex lock; // Sleep Lock
-};
-
-namespace BufferCache
-{
-    void init();
-    struct Buf *bread(uint32 dev, uint32 blockno);
-    void bwrite(struct Buf *b);
-    void brelse(struct Buf *b);
-    void bpin(struct Buf *b);
-    void bunpin(struct Buf *b);
-} // namespace BufferCache
diff --git a/include/kernel/config.h b/include/kernel/config.h
deleted file mode 100644
index 49df2ff..0000000
--- a/include/kernel/config.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard Qin
- */
-
-#pragma once
-#include "common/types.h"
-#include "kernel/fdt.h"
-
-// Legacy compat — these are still referenced in some places
-extern uint64 g_uart_base;
-extern uint64 g_dtb_addr;
\ No newline at end of file
diff --git a/include/kernel/cpu.h b/include/kernel/cpu.h
deleted file mode 100644
index 62bdc17..0000000
--- a/include/kernel/cpu.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-#include "kernel/proc_def.h"
-
-struct RunQueue;
-
-struct cpu
-{
-    struct Proc *proc;
-    struct Context context;
-    int noff;
-    int intena;
-
-    struct RunQueue *runqueue;
-};
-
-
-extern struct cpu cpus[];
-struct cpu *mycpu();
\ No newline at end of file
diff --git a/include/kernel/elf.h b/include/kernel/elf.h
deleted file mode 100644
index 30193d2..0000000
--- a/include/kernel/elf.h
+++ /dev/null
@@ -1,51 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-#define ELF_MAGIC 0x464C457F // "\x7FELF" in little endian
-
-// ELF File Header
-struct elfhdr
-{
-    uint32 magic; // Must equal ELF_MAGIC
-    uint8 elf[12];
-    uint16 type;
-    uint16 machine;
-    uint32 version;
-    uint64 entry; // Program Entry Point (Virtual Address)
-    uint64 phoff; // File offset of the Program Header Table
-    uint64 shoff;
-    uint32 flags;
-    uint16 ehsize;
-    uint16 phentsize;
-    uint16 phnum; // Number of Program Headers
-    uint16 shentsize;
-    uint16 shnum;
-    uint16 shstrndx;
-};
-
-// Program Header
-// Describes how to load segments from a file into memory
-struct proghdr
-{
-    uint32 type;
-    uint32 flags;
-    uint64 off;   // Offset of the section in the file
-    uint64 vaddr; // Virtual address of the segment in memory
-    uint64 paddr;
-    uint64 filesz; // Size of the section in the file
-    uint64 memsz;  // The size of the segment in memory (memsz >= filesz)
-    uint64 align;
-};
-
-// Values for Proghdr type
-#define ELF_PROG_LOAD 1
-
-// Flag bits for Proghdr flags
-#define ELF_PROG_FLAG_EXEC 1
-#define ELF_PROG_FLAG_WRITE 2
-#define ELF_PROG_FLAG_READ 4
\ No newline at end of file
diff --git a/include/kernel/exec.h b/include/kernel/exec.h
deleted file mode 100644
index 304e03f..0000000
--- a/include/kernel/exec.h
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-
-namespace Exec
-{
-    int exec(char *path, char **argv);
-}
\ No newline at end of file
diff --git a/include/kernel/fdt.h b/include/kernel/fdt.h
deleted file mode 100644
index 89cbae6..0000000
--- a/include/kernel/fdt.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard Qin
- * LumeOS - FDT Device Discovery
- */
-
-#pragma once
-#include "common/types.h"
-
-// Single device descriptor (populated from FDT)
-struct FdtDevice {
-    uint64 base_addr;    // MMIO base address
-    uint64 size;         // MMIO region size
-    uint32 irq;          // Interrupt number (0 = none)
-};
-
-// Device registry — populated by fdt_parse(), consumed by drivers
-struct DeviceRegistry {
-    // Memory
-    uint64 mem_base;
-    uint64 mem_size;
-
-    // Core platform devices
-    FdtDevice uart;
-    FdtDevice plic;
-    FdtDevice clint;
-
-    // VirtIO devices (multiple possible)
-    static constexpr int MAX_VIRTIO = 8;
-    FdtDevice virtio[MAX_VIRTIO];
-    int virtio_count;
-
-    // MMIO ranges for kvminit() to map
-    static constexpr int MAX_MMIO = 16;
-    struct MmioRegion {
-        uint64 base;
-        uint64 size;
-    } mmio_regions[MAX_MMIO];
-    int mmio_count;
-};
-
-extern DeviceRegistry g_devices;
-
-// Parse FDT and populate g_devices
-void fdt_parse(uint64 dtb);
diff --git a/include/kernel/mm.h b/include/kernel/mm.h
deleted file mode 100644
index e3de09a..0000000
--- a/include/kernel/mm.h
+++ /dev/null
@@ -1,32 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-namespace VM
-{
-    extern uint64 *kernel_pagetable;
-
-    void kvminit();
-    void kvminithart();
-
-    uint64 *uvmcreate();
-    void uvminit(uint64 *pagetable, uchar *src, uint64 sz);
-    uint64 uvmalloc(uint64 *pagetable, uint64 oldsz, uint64 newsz, int xperm);
-    uint64 uvmdealloc(uint64 *pagetable, uint64 oldsz, uint64 newsz);
-    void uvmfree(uint64 *pagetable, uint64 sz);
-    int uvmcopy(uint64 *oldpt, uint64 *newpt, uint64 sz);
-    void uvmunmap(uint64 *pagetable, uint64 va, uint64 npages, int do_free);
-
-    int copyout(uint64 *pagetable, uint64 dstva, char *src, uint64 len);
-    int copyin(uint64 *pagetable, char *dst, uint64 srcva, uint64 len);
-    int copyinstr(uint64 *pagetable, char *dst, uint64 srcva, uint64 max);
-
-    int handle_cow_fault(uint64 *pagetable, uint64 va);
-    int mappages(uint64 *pagetable, uint64 va, uint64 size, uint64 pa, int perm);
-
-    uint64 walkaddr(uint64 *pagetable, uint64 va);
-}
\ No newline at end of file
diff --git a/include/kernel/pmm.h b/include/kernel/pmm.h
deleted file mode 100644
index 261786d..0000000
--- a/include/kernel/pmm.h
+++ /dev/null
@@ -1,60 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard Qin
- */
-
-#pragma once
-#include "common/types.h"
-#include "kernel/spinlock.h"
-#include "kernel/fdt.h" // For g_devices
-
-// Physical Memory Layout Definition
-#define KERNBASE 0x80000000
-
-// Dynamic memory size from FDT
-// Default to 128MB if FDT not present/parsed
-extern uint64 g_phys_size;
-
-#define PHYSIZE (g_phys_size)
-#define PHYSTOP (KERNBASE + PHYSIZE)
-
-// Buddy System Max Order
-// Order 10 => 2^10 pages = 1024 * 4KB = 4MB contiguous block
-// Order 11 => 2^11 pages = 8MB
-#define MAX_ORDER 11
-
-// Page flag
-#define PG_used 0x01     // This page is occupied
-#define PG_reserved 0x02 // This page is reserved (kernel code/data, DTB, MemMap)
-
-// Physical Page Metadata Structure
-struct Page
-{
-    uint8 flags;       // Page Status (PG_used, PG_reserved)
-    uint8 order;       // If it is the first page of a free block, record the order of the current block
-    uint16 refcnt;     // Reference Counting
-    struct Page *next; // Free list pointer (points to the next free block of the same size)
-    struct Page *prev; // Doubly linked list (easy to remove)
-};
-
-namespace PMM
-{
-    // Initialize physical memory management
-    void init();
-
-    // Core Allocation Interface (Buddy System)
-    // order: 0 ~ MAX_ORDER-1
-    void *alloc_pages(int order);
-    void free_pages(void *pa, int order);
-
-    // Compatible with old interface (allocate single page with order=0 and automatically reset to zero)
-    void *alloc_page();
-    void free_page(void *pa);
-
-    // Helper function
-    struct Page *pa_to_page(uint64 pa);
-    uint64 page_to_pa(struct Page *page);
-
-    // Debug information
-    void print_free_lists();
-}
\ No newline at end of file
diff --git a/include/kernel/proc.h b/include/kernel/proc.h
deleted file mode 100644
index e11dc47..0000000
--- a/include/kernel/proc.h
+++ /dev/null
@@ -1,34 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-#include "kernel/proc_def.h"
-#include "kernel/spinlock.h"
-
-namespace ProcManager
-{
-    void init();
-    void scheduler();
-    void yield();
-
-    void create_kernel_thread(void (*func)(), const char *name);
-
-    void user_init();
-    void exit(int status);
-    int wait(uint64 addr);
-
-    void sleep(void *chan, Spinlock *lk);
-    void wakeup(void *chan);
-
-    int growproc(int n);
-
-    int kill(int pid);
-}
-
-void forkret();
-struct Proc *myproc();
-void usertrapret();
-int fork();
\ No newline at end of file
diff --git a/include/kernel/proc_def.h b/include/kernel/proc_def.h
deleted file mode 100644
index 50f27d7..0000000
--- a/include/kernel/proc_def.h
+++ /dev/null
@@ -1,75 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-#include "common/fcntl.h"
-
-struct cpu;
-struct Trapframe;
-class Inode;
-struct file;
-
-enum ProcState
-{
-    UNUSED,
-    USED,
-    SLEEPING,
-    RUNNABLE,
-    RUNNING,
-    ZOMBIE,
-};
-
-#define PRIO_MAX 0
-#define PRIO_MIN 3
-#define N_PRIO 4
-
-// Context structure
-struct Context
-{
-    uint64 ra;
-    uint64 sp;
-    uint64 s0;
-    uint64 s1;
-    uint64 s2;
-    uint64 s3;
-    uint64 s4;
-    uint64 s5;
-    uint64 s6;
-    uint64 s7;
-    uint64 s8;
-    uint64 s9;
-    uint64 s10;
-    uint64 s11;
-};
-
-struct Proc
-{
-    struct Context context;
-    struct Trapframe *tf;
-    uint64 *pagetable;
-    enum ProcState state;
-    int pid;
-    void *kstack;
-    char name[16];
-    uint64 sz;
-    struct Proc *parent;
-    void *chan;
-    int xstate;
-    int killed;
-
-    Inode *cwd;
-    struct file *ofile[NOFILE];
-
-    struct Proc *next;
-    struct Proc *prev;
-
-    struct Proc *all_next;
-    struct Proc *all_prev;
-
-    int priority;
-    int ticks;
-    struct cpu *cpu;
-};
\ No newline at end of file
diff --git a/include/kernel/riscv.h b/include/kernel/riscv.h
deleted file mode 100644
index 0c586a9..0000000
--- a/include/kernel/riscv.h
+++ /dev/null
@@ -1,404 +0,0 @@
-#ifndef __ASSEMBLER__
-
-// which hart (core) is this?
-static inline uint64
-r_mhartid()
-{
-  uint64 x;
-  asm volatile("csrr %0, mhartid" : "=r" (x) );
-  return x;
-}
-
-// Machine Status Register, mstatus
-
-#define MSTATUS_MPP_MASK (3L << 11) // previous mode.
-#define MSTATUS_MPP_M (3L << 11)
-#define MSTATUS_MPP_S (1L << 11)
-#define MSTATUS_MPP_U (0L << 11)
-
-static inline uint64
-r_mstatus()
-{
-  uint64 x;
-  asm volatile("csrr %0, mstatus" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_mstatus(uint64 x)
-{
-  asm volatile("csrw mstatus, %0" : : "r" (x));
-}
-
-// machine exception program counter, holds the
-// instruction address to which a return from
-// exception will go.
-static inline void 
-w_mepc(uint64 x)
-{
-  asm volatile("csrw mepc, %0" : : "r" (x));
-}
-
-// Supervisor Status Register, sstatus
-
-#define SSTATUS_SPP (1L << 8)  // Previous mode, 1=Supervisor, 0=User
-#define SSTATUS_SPIE (1L << 5) // Supervisor Previous Interrupt Enable
-#define SSTATUS_UPIE (1L << 4) // User Previous Interrupt Enable
-#define SSTATUS_SIE (1L << 1)  // Supervisor Interrupt Enable
-#define SSTATUS_UIE (1L << 0)  // User Interrupt Enable
-
-static inline uint64
-r_sstatus()
-{
-  uint64 x;
-  asm volatile("csrr %0, sstatus" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_sstatus(uint64 x)
-{
-  asm volatile("csrw sstatus, %0" : : "r" (x));
-}
-
-// Supervisor Interrupt Pending
-static inline uint64
-r_sip()
-{
-  uint64 x;
-  asm volatile("csrr %0, sip" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_sip(uint64 x)
-{
-  asm volatile("csrw sip, %0" : : "r" (x));
-}
-
-// Supervisor Interrupt Enable
-#define SIE_SEIE (1L << 9) // external
-#define SIE_STIE (1L << 5) // timer
-#define SIE_SSIE (1L << 1) // software
-static inline uint64
-r_sie()
-{
-  uint64 x;
-  asm volatile("csrr %0, sie" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_sie(uint64 x)
-{
-  asm volatile("csrw sie, %0" : : "r" (x));
-}
-
-// Machine-mode Interrupt Enable
-#define MIE_STIE (1L << 5)  // supervisor timer
-static inline uint64
-r_mie()
-{
-  uint64 x;
-  asm volatile("csrr %0, mie" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_mie(uint64 x)
-{
-  asm volatile("csrw mie, %0" : : "r" (x));
-}
-
-// supervisor exception program counter, holds the
-// instruction address to which a return from
-// exception will go.
-static inline void 
-w_sepc(uint64 x)
-{
-  asm volatile("csrw sepc, %0" : : "r" (x));
-}
-
-static inline uint64
-r_sepc()
-{
-  uint64 x;
-  asm volatile("csrr %0, sepc" : "=r" (x) );
-  return x;
-}
-
-// Machine Exception Delegation
-static inline uint64
-r_medeleg()
-{
-  uint64 x;
-  asm volatile("csrr %0, medeleg" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_medeleg(uint64 x)
-{
-  asm volatile("csrw medeleg, %0" : : "r" (x));
-}
-
-// Machine Interrupt Delegation
-static inline uint64
-r_mideleg()
-{
-  uint64 x;
-  asm volatile("csrr %0, mideleg" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_mideleg(uint64 x)
-{
-  asm volatile("csrw mideleg, %0" : : "r" (x));
-}
-
-// Supervisor Trap-Vector Base Address
-// low two bits are mode.
-static inline void 
-w_stvec(uint64 x)
-{
-  asm volatile("csrw stvec, %0" : : "r" (x));
-}
-
-static inline uint64
-r_stvec()
-{
-  uint64 x;
-  asm volatile("csrr %0, stvec" : "=r" (x) );
-  return x;
-}
-
-// Supervisor Timer Comparison Register
-static inline uint64
-r_stimecmp()
-{
-  uint64 x;
-  // asm volatile("csrr %0, stimecmp" : "=r" (x) );
-  asm volatile("csrr %0, 0x14d" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_stimecmp(uint64 x)
-{
-  // asm volatile("csrw stimecmp, %0" : : "r" (x));
-  asm volatile("csrw 0x14d, %0" : : "r" (x));
-}
-
-// Machine Environment Configuration Register
-static inline uint64
-r_menvcfg()
-{
-  uint64 x;
-  // asm volatile("csrr %0, menvcfg" : "=r" (x) );
-  asm volatile("csrr %0, 0x30a" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_menvcfg(uint64 x)
-{
-  //asm volatile("csrw menvcfg, %0" : : "r" (x));
-  asm volatile("csrw 0x30a, %0" : : "r" (x));
-}
-
-// Physical Memory Protection
-static inline void
-w_pmpcfg0(uint64 x)
-{
-  asm volatile("csrw pmpcfg0, %0" : : "r" (x));
-}
-
-static inline void
-w_pmpaddr0(uint64 x)
-{
-  asm volatile("csrw pmpaddr0, %0" : : "r" (x));
-}
-
-// use riscv's sv39 page table scheme.
-#define SATP_SV39 (8L << 60)
-
-#define MAKE_SATP(pagetable) (SATP_SV39 | (((uint64)pagetable) >> 12))
-
-// supervisor address translation and protection;
-// holds the address of the page table.
-static inline void 
-w_satp(uint64 x)
-{
-  asm volatile("csrw satp, %0" : : "r" (x));
-}
-
-static inline uint64
-r_satp()
-{
-  uint64 x;
-  asm volatile("csrr %0, satp" : "=r" (x) );
-  return x;
-}
-
-// Supervisor Trap Cause
-static inline uint64
-r_scause()
-{
-  uint64 x;
-  asm volatile("csrr %0, scause" : "=r" (x) );
-  return x;
-}
-
-// Supervisor Trap Value
-static inline uint64
-r_stval()
-{
-  uint64 x;
-  asm volatile("csrr %0, stval" : "=r" (x) );
-  return x;
-}
-
-// Machine-mode Counter-Enable
-static inline void 
-w_mcounteren(uint64 x)
-{
-  asm volatile("csrw mcounteren, %0" : : "r" (x));
-}
-
-static inline uint64
-r_mcounteren()
-{
-  uint64 x;
-  asm volatile("csrr %0, mcounteren" : "=r" (x) );
-  return x;
-}
-
-// machine-mode cycle counter
-static inline uint64
-r_time()
-{
-  uint64 x;
-  asm volatile("csrr %0, time" : "=r" (x) );
-  return x;
-}
-
-// enable device interrupts
-static inline void
-intr_on()
-{
-  w_sstatus(r_sstatus() | SSTATUS_SIE);
-}
-
-// disable device interrupts
-static inline void
-intr_off()
-{
-  w_sstatus(r_sstatus() & ~SSTATUS_SIE);
-}
-
-// are device interrupts enabled?
-static inline int
-intr_get()
-{
-  uint64 x = r_sstatus();
-  return (x & SSTATUS_SIE) != 0;
-}
-
-static inline uint64
-r_sp()
-{
-  uint64 x;
-  asm volatile("mv %0, sp" : "=r" (x) );
-  return x;
-}
-
-static inline uint64
-r_fp()
-{
-  uint64 x;
-  asm volatile("mv %0, s0" : "=r" (x) );
-  return x;
-}
-
-// read and write tp, the thread pointer, which xv6 uses to hold
-// this core's hartid (core number), the index into cpus[].
-static inline uint64
-r_tp()
-{
-  uint64 x;
-  asm volatile("mv %0, tp" : "=r" (x) );
-  return x;
-}
-
-static inline void 
-w_tp(uint64 x)
-{
-  asm volatile("mv tp, %0" : : "r" (x));
-}
-
-static inline uint64
-r_ra()
-{
-  uint64 x;
-  asm volatile("mv %0, ra" : "=r" (x) );
-  return x;
-}
-
-// flush the TLB.
-static inline void
-sfence_vma()
-{
-  // the zero, zero means flush all TLB entries.
-  asm volatile("sfence.vma zero, zero");
-}
-
-typedef uint64 pte_t;
-typedef uint64 *pagetable_t; // 512 PTEs
-
-#endif // __ASSEMBLER__
-
-#define PGSIZE 4096 // bytes per page
-#define PGSHIFT 12  // bits of offset within a page
-
-#ifdef LAB_PGTBL
-#define SUPERPGSIZE (2 * (1 << 20)) // bytes per page
-#define SUPERPGROUNDUP(sz)  (((sz)+SUPERPGSIZE-1) & ~(SUPERPGSIZE-1))
-#define SUPERPGROUNDDOWN(sz) (SUPERPGROUNDUP(sz)-SUPERPGSIZE)
-#endif
-
-#define PGROUNDUP(sz)  (((sz)+PGSIZE-1) & ~(PGSIZE-1))
-#define PGROUNDDOWN(a) (((a)) & ~(PGSIZE-1))
-
-#define PTE_V (1L << 0) // valid
-#define PTE_R (1L << 1)
-#define PTE_W (1L << 2)
-#define PTE_X (1L << 3)
-#define PTE_U (1L << 4) // user can access
-
-// COW Flag (PTE bit 8)
-#define PTE_COW (1L << 8)
-
-#if defined(LAB_MMAP) || defined(LAB_PGTBL) || defined(LAB_COW)
-#define PTE_LEAF(pte) (((pte) & PTE_R) | ((pte) & PTE_W) | ((pte) & PTE_X))
-#endif
-
-// shift a physical address to the right place for a PTE.
-#define PA2PTE(pa) ((((uint64)pa) >> 12) << 10)
-
-#define PTE2PA(pte) (((pte) >> 10) << 12)
-
-#define PTE_FLAGS(pte) ((pte) & 0x3FF)
-
-// extract the three 9-bit page table indices from a virtual address.
-#define PXMASK          0x1FF // 9 bits
-#define PXSHIFT(level)  (PGSHIFT+(9*(level)))
-#define PX(level, va) ((((uint64) (va)) >> PXSHIFT(level)) & PXMASK)
-
-// one beyond the highest possible virtual address.
-// MAXVA is actually one bit less than the max allowed by
-// Sv39, to avoid having to sign-extend virtual addresses
-// that have the high bit set.
-#define MAXVA (1L << (9 + 9 + 9 + 12 - 1))
-#define TRAMPOLINE (MAXVA - PGSIZE)
-#define TRAPFRAME (TRAMPOLINE - PGSIZE)
\ No newline at end of file
diff --git a/include/kernel/runqueue.h b/include/kernel/runqueue.h
deleted file mode 100644
index 14704ce..0000000
--- a/include/kernel/runqueue.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "kernel/spinlock.h"
-#include "kernel/proc_def.h"
-
-struct RunQueue
-{
-    Spinlock lock;
-    struct Proc *heads[N_PRIO];
-    struct Proc *tails[N_PRIO];
-    uint64 count;
-
-    void init(const char *name);
-    void enqueue(struct Proc *p);
-    struct Proc *dequeue();
-    struct Proc *steal();
-};
\ No newline at end of file
diff --git a/include/kernel/sbi.h b/include/kernel/sbi.h
deleted file mode 100644
index a6be5b3..0000000
--- a/include/kernel/sbi.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-// SBI Extension IDs
-#define SBI_EID_SRST 0x53525354
-
-// SBI Function IDs for SRST
-#define SBI_FID_SRST_RESET 0
-
-// Reset Types
-#define SBI_SRST_TYPE_SHUTDOWN 0
-#define SBI_SRST_TYPE_COLD_REBOOT 1
-#define SBI_SRST_TYPE_WARM_REBOOT 2
-
-// Reset Reasons
-#define SBI_SRST_REASON_NONE 0
-#define SBI_SRST_REASON_SYSTEM_FAILURE 1
-
-namespace SBI
-{
-    void set_timer(uint64 stime_value);
-    void sbi_shutdown();
-    void sbi_reboot();
-} // namespace SBI
diff --git a/include/kernel/slab.h b/include/kernel/slab.h
deleted file mode 100644
index bb7b699..0000000
--- a/include/kernel/slab.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-namespace Slab
-{
-    void init();
-
-    void *kmalloc(uint64 size);
-    void kfree(void *ptr);
-}
\ No newline at end of file
diff --git a/include/kernel/spinlock.h b/include/kernel/spinlock.h
deleted file mode 100644
index 1511199..0000000
--- a/include/kernel/spinlock.h
+++ /dev/null
@@ -1,53 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-struct cpu;
-
-// Spinlock
-// Features: Non-interruptible, busy-wait loop, extremely short hold time.
-// Scenario: Protecting core data such as scheduler, interrupt handling, PMM, etc.
-class Spinlock
-{
-public:
-    volatile uint32 locked;     // Whether it is locked (0: unlocked, 1: locked)
-    const char *name;      // Lock Name (for debugging)
-    struct cpu *cpu; // The CPU holding the lock
-
-    // Constructor
-    Spinlock() : locked(0), name("uninit"), cpu(nullptr) {}
-
-    // Initialize lock name
-    void init(const char *name);
-
-    // Acquire lock
-    void acquire();
-
-    // Release lock
-    void release();
-
-    // Check if the current CPU holds the lock
-    bool holding();
-};
-
-// Mutex
-// Features: Allows interruption, allows sleeping (yield CPU), can hold for a long time.
-// Scenarios: File system IO, device driver waiting, long-term buffering operations.
-class Mutex
-{
-public:
-    uint32 locked;    // Whether it is locked
-    const char *name; // Lock Name
-    int pid;          // PID of the process holding the lock (for debugging)
-
-    Spinlock lk; // Internal spin lock, protects the state of the Mutex itself
-
-    void init(const char *name);
-    void acquire();
-    void release();
-    bool holding();
-};
\ No newline at end of file
diff --git a/include/kernel/sync.h b/include/kernel/sync.h
deleted file mode 100644
index 7f7c208..0000000
--- a/include/kernel/sync.h
+++ /dev/null
@@ -1,43 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-#include "kernel/spinlock.h"
-#include "kernel/proc_def.h"
-
-
-struct WaitQueue
-{
-    Spinlock lock;
-    struct Proc *head;
-    struct Proc *tail;
-
-    void init(const char *name);
-    void sleep();
-    void wakeup();
-    void wakeup_all();
-};
-
-struct Semaphore
-{
-    int value;
-    WaitQueue wq;
-    Spinlock lock;
-
-    void init(int val, const char *name);
-    void wait();
-    void post();
-};
-
-struct CondVar
-{
-    WaitQueue wq;
-
-    void init(const char *name);
-    void wait(Spinlock *mutex_lock);
-    void signal();
-    void broadcast();
-};
\ No newline at end of file
diff --git a/include/kernel/syscall.h b/include/kernel/syscall.h
deleted file mode 100644
index 3594c08..0000000
--- a/include/kernel/syscall.h
+++ /dev/null
@@ -1,85 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard Qin
- * Lume OS - Linux Compatibility Layer
- *
- * Strictly aligned with Linux RISC-V 64 ABI (asm-generic)
- * Reference: linux/usr/include/asm-generic/unistd.h
- */
-
-#pragma once
-
-// File System
-#define SYS_getcwd 17
-#define SYS_dup 23
-#define SYS_dup3 24
-#define SYS_fcntl 25
-#define SYS_ioctl 29
-#define SYS_mknodat 33
-#define SYS_mkdirat 34
-#define SYS_unlinkat 35
-#define SYS_linkat 37
-#define SYS_umount2 39
-#define SYS_mount 40
-#define SYS_statfs 43
-#define SYS_ftruncate 46
-#define SYS_faccessat 48
-#define SYS_chdir 49
-#define SYS_fchmod 52
-#define SYS_fchmodat 53
-#define SYS_fchownat 54
-#define SYS_openat 56
-#define SYS_close 57
-#define SYS_vhangup 58
-#define SYS_pipe2 59
-#define SYS_getdents64 61
-#define SYS_lseek 62
-#define SYS_read 63
-#define SYS_write 64
-#define SYS_readv 65
-#define SYS_writev 66
-#define SYS_pread64 67
-#define SYS_pwrite64 68
-#define SYS_pselect6 72
-#define SYS_ppoll 73
-#define SYS_readlinkat 78
-#define SYS_fstatat 79 // newfstatat
-#define SYS_fstat 80
-
-// Process Management
-#define SYS_exit 93
-#define SYS_exit_group 94
-#define SYS_set_tid_address 96
-#define SYS_nanosleep 101
-#define SYS_kill 129
-#define SYS_rt_sigaction 134
-#define SYS_times 153
-#define SYS_uname 160
-#define SYS_gettimeofday 169
-#define SYS_getpid 172
-#define SYS_getppid 173
-#define SYS_getuid 174
-#define SYS_geteuid 175
-#define SYS_getgid 176
-#define SYS_getegid 177
-#define SYS_sysinfo 179
-#define SYS_brk 214
-#define SYS_munmap 215
-#define SYS_mremap 216
-#define SYS_clone 220
-#define SYS_execve 221
-#define SYS_mmap 222
-#define SYS_wait4 260
-#define SYS_prlimit64 261
-
-// System
-#define SYS_reboot 142 // Used for shutdown
-
-// === Custom / Debug (Non-Standard) ===
-// Placed above 1000 to avoid conflicts with Linux ABI
-#define SYS_putc 1000
-#define SYS_disk_test 1001
-
-#ifndef __ASSEMBLER__
-void syscall();
-#endif
\ No newline at end of file
diff --git a/include/kernel/timer.h b/include/kernel/timer.h
deleted file mode 100644
index 8b97bbe..0000000
--- a/include/kernel/timer.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#include "common/types.h"
-
-namespace Timer{
-    uint64 get_time();
-    void set_next_trigger();
-    void init();
-
-    void tick();
-    uint64 get_ticks();
-    Spinlock *get_lock();
-    void *get_tick_chan();
-}
\ No newline at end of file
diff --git a/include/kernel/trap.h b/include/kernel/trap.h
deleted file mode 100644
index ddc1d12..0000000
--- a/include/kernel/trap.h
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2026 Richard QIn
- */
-
-#pragma once
-#include "common/types.h"
-
-struct Trapframe
-{
-    /* 0 */ uint64 kernel_satp;
-    /* 8 */ uint64 kernel_sp;
-    /* 16 */ uint64 kernel_trap;
-    /* 24 */ uint64 epc;
-    /* 32 */ uint64 kernel_hartid;
-
-    /* 40 */ uint64 ra;   // x1
-    /* 48 */ uint64 sp;   // x2
-    /* 56 */ uint64 gp;   // x3
-    /* 64 */ uint64 tp;   // x4
-    /* 72 */ uint64 t0;   // x5
-    /* 80 */ uint64 t1;   // x6
-    /* 88 */ uint64 t2;   // x7
-    /* 96 */ uint64 s0;   // x8 (Frame Pointer)
-    /* 104 */ uint64 s1;  // x9
-    /* 112 */ uint64 a0;  // x10
-    /* 120 */ uint64 a1;  // x11
-    /* 128 */ uint64 a2;  // x12
-    /* 136 */ uint64 a3;  // x13
-    /* 144 */ uint64 a4;  // x14
-    /* 152 */ uint64 a5;  // x15
-    /* 160 */ uint64 a6;  // x16
-    /* 168 */ uint64 a7;  // x17
-    /* 176 */ uint64 s2;  // x18
-    /* 184 */ uint64 s3;  // x19
-    /* 192 */ uint64 s4;  // x20
-    /* 200 */ uint64 s5;  // x21
-    /* 208 */ uint64 s6;  // x22
-    /* 216 */ uint64 s7;  // x23
-    /* 224 */ uint64 s8;  // x24
-    /* 232 */ uint64 s9;  // x25
-    /* 240 */ uint64 s10; // x26
-    /* 248 */ uint64 s11; // x27
-    /* 256 */ uint64 t3;  // x28
-    /* 264 */ uint64 t4;  // x29
-    /* 272 */ uint64 t5;  // x30
-    /* 280 */ uint64 t6;  // x31
-};
-
-namespace Trap
-{
-    void init();
-    void inithart();
-    int devintr();
-}
\ No newline at end of file