trapslab initialized

kernel/sysproc.c

@@ -1,7 +1,7 @@
 #include "types.h"
 #include "riscv.h"
-#include "param.h"
 #include "defs.h"
+#include "param.h"
 #include "memlayout.h"
 #include "spinlock.h"
 #include "proc.h"
@@ -54,7 +54,6 @@ sys_sleep(void)
   int n;
   uint ticks0;
 
-
   argint(0, &n);
   if(n < 0)
     n = 0;
@@ -71,37 +70,6 @@ sys_sleep(void)
   return 0;
 }
 
-
-#ifdef LAB_PGTBL
-int
-sys_pgpte(void)
-{
-  uint64 va;
-  struct proc *p;  
-
-  p = myproc();
-  argaddr(0, &va);
-  pte_t *pte = pgpte(p->pagetable, va);
-  if(pte != 0) {
-      return (uint64) *pte;
-  }
-  return 0;
-}
-#endif
-
-#ifdef LAB_PGTBL
-int
-sys_kpgtbl(void)
-{
-  struct proc *p;  
-
-  p = myproc();
-  vmprint(p->pagetable);
-  return 0;
-}
-#endif
-
-
 uint64
 sys_kill(void)
 {
@@ -123,82 +91,3 @@ sys_uptime(void)
   release(&tickslock);
   return xticks;
 }
-
-uint64
-sys_pgaccess(void)
- {
-   // lab pgtbl: your code here.
-  struct proc *p = myproc();
-  unsigned int abits=0;
-
-  uint64 addr;
-  argaddr(0, &addr);
-
-  int num;
-  argint(1,&num);
-
-  uint64 dest;
-  argaddr(2, &dest);
-
-
-  for(int i=0;i<num;i++){
-    uint64 query_addr = addr + i * PGSIZE ;
-
-
-    pte_t * pte=walk(p->pagetable, query_addr, 0);
-    if(*pte&PTE_A)
-    {
-      abits=abits|(1<<i);
-      *pte=(*pte)&(~PTE_A);
-    }
-
-  }
-
-
-
-  if(copyout(p->pagetable,dest,(char*)&abits, sizeof(abits)) < 0)
-    return -1;
-
-
-
-   return 0;
- }
-
-#ifdef LAB_PGTBL
-uint64
-sys_dirtypages(void)
-{
-  struct proc *p = myproc();
-  unsigned int dbits = 0;
-
-  uint64 addr;
-  argaddr(0, &addr);
-
-  int num;
-  argint(1, &num);
-
-  uint64 dest;
-  argaddr(2, &dest);
-
-  // Check each page in the range
-  for(int i = 0; i < num; i++){
-    uint64 query_addr = addr + i * PGSIZE;
-
-    pte_t *pte = walk(p->pagetable, query_addr, 0);
-    if(pte == 0)
-      continue;  // Skip pages that don't exist
-    
-    if(*pte & PTE_D) {
-      dbits = dbits | (1 << i);
-      // Clear the dirty bit after reading it
-      *pte = (*pte) & (~PTE_D);
-    }
-  }
-
-  // Copy the result back to user space
-  if(copyout(p->pagetable, dest, (char*)&dbits, sizeof(dbits)) < 0)
-    return -1;
-
-  return 0;
-}
-#endif