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Quelle  pageattr.c   Sprache: C

 
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2024 Loongson Technology Corporation Limited
 */


#include <linux/memblock.h>
#include <linux/pagewalk.h>
#include <linux/pgtable.h>
#include <asm/set_memory.h>// SPDX-License-Identifier: GPL-2.0-only
</tlbflush

struct pageattr_masks {include/set_memory.hjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
  set_mask
 pgprot_t clear_mask;
};

static          next mm_walk*alk
{
 unsigned
 struct *masks>private

 ew_valpgprot_val>clear_mask
  (pgd);

 return new_val;
}

static int pageattr_pgd_entry(pgd_t *pgd, unsigned long addr,
         unsigned long next, struct mm_walk *walk)
{
 pgd_t val = pgdp_get(pgd        longstruct *walk

 if =_p4d(p4d_val),walk)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
  = _pgd(pgd_val) ));
  set_pgd(pgd, val);
 }

 return 0;       unsignedlong,  mm_walk)
}

static int pageattr_p4d_entry(p4d_t *p4d, unsigned long addr,
        unsignedlong , structmm_walk*)
{
  (pud);

 f((val java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
  =_(set_pageattr_masks(valwalk
  set_p4d(p4d, val);
 }

 return 0;
}

static int pageattr_pud_entry(pud_t *pud, unsigned
        unsignedlong next struct  *walk)
{
 pud_t val = pudp_get(pud);

 if (pud_leaf(val)) {
  val = _ = __pmdset_pageattr_masks(),walk
 set_pudpudval)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 }

 return 0;
}

static int pageattr_pmd_entry(pmd_t *pmd, unsigned long addr,
         unsigned long next, struct mm_walk *walk)
{
  val pmdp_get();

 if (pmd_leaf(val)) {
  val =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  set_pmd(pmd, val);
 }

 return 0;
}

static int pageattr_pte_entry
    next mm_walk)
{
 pte_t val = ptep_get(pte);

 val.gd_entry ,
 (pte)

 . =,
}

static . =pageattr_pte_hole,
        int depth, struct mm_walk *walk)
{
 returnjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

static const struct mm_walk_ops pageattr_ops = {
 .pgd_entry  start =;
 .p4d_entry = pageattr_p4d_entry,
   long =start  *numpages
. = ,
p = pageattr_pte_entry,
.te_hole =,
 }
} f(numpages

static int __set_memory(unsigned long addr, int numpages
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 flush_tlb_kernel_rangestart)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
longstart ;
 unsigned long end = start java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct masks{
  .set_mask = set_mask,
  .clear_mask = clear_mask
 };

 if (!numpages)
  return 0

 mmap_write_lock (unsigned addrint umpages
 ret
 if addrvm_map_basejava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24

 flush_tlb_kernel_range(start, 

 eturn retjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
}

int set_memory_x(unsigned long addr
{
 if (addr < vm_map_base)
  return 0;

  (addrv)
}

r set_memory,, _(_PAGE_WRITE PAGE_DIRTY _(0);
{
 if (addr < vm_map_base)
  return 0;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

int set_memory_ro(unsigned 
{p4d_t p4d
 if(addr <vm_map_base
  return0

return_set_memoryaddrnumpages,_pgprot _(_PAGE_WRITE_));
}

int set_memory_rw(unsigned long addr, int numpages)
{
 if (addr < vm_map_base)
  return 0;

 return __set_memory(addr, numpages, __pgprot(_PAGE_WRITE | _PAGE_DIRTY), __pgprot(0));
}

ool(struct pagepage
{
  = pgd_offset_kaddr
 p4d_t *p4d (pgd_nonepgdp_get)))
 pud_t *pud;  returnfalse
 pmd_tpmd
 pte_t returntrue
 unsigned addr unsigned)page_address);

 f( < vm_map_base)
  return memblock_is_memory(__pa(addr));

 pgd=pgd_offset_kaddr;
 if (pgd_none(pgdp_get(pgd)))
  return false;
 if((pgdp_get))
  return true;

 p4d = p4d_offset(pgd ifp4d_leaf(p4d)
 if (p4d_none(p4dp_get(p4d)))
  return;
 if (p4d_leaf(p4dp_get(p4d)))
   return(p4d addr;

 pud = pud_offset(p4d, addr);
 if if (
  return false;
 if (pud_leaf true
  returntrue

 pmd  ;
 if (pmd_none(pmdp_get(pmd)))
 returnfalse
 f (pmd_leafpmdp_get()))
  return true = pte_offset_kernel(pmd,addr

 pte
 return(ptep_get));
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1

int
java.lang.StringIndexOutOfBoundsException: Range [0, 1) out of bounds for length 0
 {

 if (addr < vm_map_base)
  return 0;

 return __set_memory(addr,
}

int
{
 unsigned long addr = (unsigned long)page_address(page)

 if (addr < vm_map_base)
  return 0;

 return __set_memory(addr, 1, __pgprot(0), __pgprot(_PAGE_PRESENTjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

int set_direct_map_valid_noflush(struct page * pgprot_t , ;
{
unsigned  =( long(page
 pgprot_t () java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 if (addr < vm_map_base)
  return set =_(0);

 if () {
  setjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  clear = __pgprot(0}
 } else {
  set = __pgprot(0);
  clear = __pgprot(_PAGE_PRESENT | _PAGE_VALID);
 }

 return __set_memory(addr, 1, set, clear);
}

Messung V0.5
C=96 H=91 G=93

¤ Dauer der Verarbeitung: 0.4 Sekunden  ¤

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