C++ (Cpp) inituvm示例

示例#1

文件： proc.c 项目： haa777/332Assignment3

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
  
  p = allocproc();
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");

  p->state = RUNNABLE;
}

示例#2

文件： proc.c 项目： reutz19/xv6_ass3

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{

#ifndef SELECTION_NONE
  //get num of free pages after kernel finished loading
  free_pages_after_kernel = get_freepages_num();
#endif

  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
  
  p = allocproc();
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");
  
  p->state = RUNNABLE;
}

示例#3

文件： proc.c 项目： RonBarabash/OS132-Ass3

// Set up internal proccess for swap managment (inswapper)
void 
createInternalProcess(const char *name, void (*entrypoint)())
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
  
  p = allocproc();
  inswapper = p;
  if((p->pgdir = setupkvm(kalloc)) == 0)
    panic("inswapper: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;
  p->context->eip = (uint) entrypoint;  // beginning of inswapper

  safestrcpy(p->name, name, sizeof(p->name));
  p->cwd = namei("/");

  // start sleeping until first proccess is created
  p->state = SLEEPING;
}

示例#4

文件： proc.c 项目： mmerler/osgroup

// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
  
  p = allocproc();
  initproc = p;
  if(!(p->pgdir = setupkvm()))
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");

  p->state = RUNNABLE;
  
  // START HW4
  p->priority = 0;
  p->affinity = -1;

  acquire(&runqueue.lock);
  enqueue( p->pid, 0 );
  release(&runqueue.lock); 
  // END HW4
}

示例#5

文件： proc.c 项目： david50407/xv6-rpi

//PAGEBREAK: 32
// hand-craft the first user process. We link initcode.S into the kernel
// as a binary, the linker will generate __binary_initcode_start/_size
void userinit(void)
{
    struct proc *p;
    extern char _binary_initcode_start[], _binary_initcode_size[];

    p = allocproc();
    initproc = p;

    if((p->pgdir = kpt_alloc()) == NULL) {
        panic("userinit: out of memory?");
    }

    inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);

    p->sz = PTE_SZ;

    // craft the trapframe as if
    memset(p->tf, 0, sizeof(*p->tf));

    p->tf->r14_svc = (uint)error_init;
    p->tf->spsr = spsr_usr ();
    p->tf->sp_usr = PTE_SZ;	// set the user stack
    p->tf->lr_usr = 0;

    // set the user pc. The actual pc loaded into r15_usr is in
    // p->tf, the trapframe.
    p->tf->pc = 0;					// beginning of initcode.S

    safestrcpy(p->name, "initcode", sizeof(p->name));
    p->cwd = namei("/");

    p->state = RUNNABLE;
}

示例#6

文件： proc.c 项目： jayakumark/advanced_os_class

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
  
  p = allocproc();
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");

  p->state = RUNNABLE;
  p->next = NULL;   // initialize queue next pointer
  p->priority = 15; // initialize priority
  
  //**** 
  //cprintf("add in userinit\n");
  acquire(&ptable.lock);
  addtoq(p);
  release(&ptable.lock);
  //****
}

示例#7

文件： proc.c 项目： buf1024/xv6-public

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];

  p = allocproc();
  
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");

  // this assignment to p->state lets other cores
  // run this process. the acquire forces the above
  // writes to be visible, and the lock is also needed
  // because the assignment might not be atomic.
  acquire(&ptable.lock);

  p->state = RUNNABLE;

  release(&ptable.lock);
}

示例#8

文件： proc.c 项目： ConnorReilly/xv6-psu-kernel-repos

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];

#ifdef USE_CS333_SCHEDULER	// Initialize free list
  acquire(&ptable.lock);
  int i;
  for (i=0; i<NPROC; i++)
    addToFreeList(&ptable.proc[i]);
  release(&ptable.lock);
#endif
  p = allocproc();
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");
  p->uid = DEF_UID;
  p->gid = DEF_GID;

#ifdef USE_CS333_SCHEDULER	// Initialize ready list with init process
  acquire(&ptable.lock);
  p->state = RUNNABLE;
  if (!setPri(p, DEF_PRI))
    cprintf("ERROR: DEF_PRI invalid. Must be between 0 and %d. Current value: %d.\n", N_PRI, DEF_PRI);
  addToPriQ(p, p->pri);
  release(&ptable.lock);
#else
  p->state = RUNNABLE;
#endif
}

示例#9

文件： proc.c 项目： RickyV33/XV6-Operating-System

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
#ifdef CS333_SCHEDULER
  acquire(&ptable.lock);
  initFreeList();
  ptable.timeToReset = COUNT;
  release(&ptable.lock);
#endif
  
  p = allocproc();
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->cs = (SEG_UCODE << 3) | DPL_USER;
  p->tf->ds = (SEG_UDATA << 3) | DPL_USER;
  p->tf->es = p->tf->ds;
  p->tf->ss = p->tf->ds;
  p->tf->eflags = FL_IF;
  p->tf->esp = PGSIZE;
  p->tf->eip = 0;  // beginning of initcode.S
  p->uid = USERID;
  p->gid = GROUPID;

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");

  p->state = RUNNABLE;
#ifdef CS333_SCHEDULER
  acquire(&ptable.lock);
  int i;
  for (i = 0; i < 3; ++i) {
      ptable.readyList[i] = 0;
  }
  putOnReadyList(p, p->priority);
  release(&ptable.lock);
#endif
}

示例#10

文件： proc.c 项目： msyksphinz/xv6-mips

//PAGEBREAK: 32
// Set up first user process.
void
userinit(void)
{
  struct proc *p;
  extern char _binary_initcode_start[], _binary_initcode_size[];
  
  p = allocproc();
  initproc = p;
  if((p->pgdir = setupkvm()) == 0)
    panic("userinit: out of memory?");
  inituvm(p->pgdir, p->asid, _binary_initcode_start, (int)_binary_initcode_size);
  p->sz = PGSIZE;
  memset(p->tf, 0, sizeof(*p->tf));
  p->tf->sp = PGSIZE;
  p->tf->status = (read_cop0_status() | STATUS_KSU_USER | STATUS_EXL | STATUS_IE) & ~STATUS_ERL;
  p->tf->epc = (uint)0;  // beginning of initcode.S

  safestrcpy(p->name, "initcode", sizeof(p->name));
  p->cwd = namei("/");

  p->state = RUNNABLE;
}