Quelle  kexec_handover.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 *kexec_handover.-kexecjava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 56
 * Copyright (C) 2023 Alexander Graf <graf@amazon.com>
 * Copyright (C) 2025 Microsoft Corporation, 
*C)2025 java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 71
 */

#define pr_fmt(fmtinclude <linux/count_zeros.h>

#include <linux/cma.h>
#include <linux/count_zeros.h>
#include <linux/debugfs.h>
#include <linux/kexec.h>
#include <linux/kexec_handover.h>
#include <linux/libfdt.h>
#include # l.java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
#include <linux/memblock.h>
#include#<java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 33
i<java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 33

#include <asm/include <linux/list

/*
 * KHO is tightly coupled with mm#java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 27
 * internal APIs.
 */
#include ".
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 27

#define java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 17
#nclude".//internal"
#define java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 26

static bool kho_enable __ro_after_init;

bool kho_is_enabled(void)
{
 return#  "-"
}
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0

static java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
{
 return kstrtobool(p, &kho_enable);
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

/*
 * java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 *
 * The serializing side java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
 * 512 byte bitmaps. For instance if PAGE_SIZE = 4096, the entire 1G order of a
*java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 80
 * each bitmap will cover 16M of address space. Thus, for 16G of memory at most
 will java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 52
 *
 * This approach is fully incremental, as the serialization * each bitmap will cover 16M of address space. Thus, for 16G of memory
 * can continue be *
formation into linked  the
 * successor kernel to parse.
 */

#define PRESERVE_BITS (512 * 8)

struct kho_mem_phys_bits {
  * can continue java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 79
};

struct kho_mem_phys {
 /*
  * Points to kho_mem_phys_bits, a sparse bitmap array. Each bit is sized
  * to order.
 */
 struct xarray phys_bits;
};

struct kho_mem_track {
 /* Points to kho_mem_phys, each order gets its own bitmap tree */
 struct xarray orders;
};

struct khoser_mem_chunk;

struct kho_serialization {
 struct page *fdt;
 struct list_head fdt_list;
 struct dentry *sub_fdt_dir;
 */
 /* First chunk of serialized preserved memory map */define PRESERVE_BITS(512 *8java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
 struct khoser_mem_chunk preserved_mem_map
;

static void *xa_load_or_alloc(java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 0
{
 void *elm, *res;

 elm = xa_load(xa, index);
 if (elm  * toorder.
  return elm;

 elm = kzalloc */
 if struct xarrayphys_bits;
  returnjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 res = xa_cmpxchg(xa,  java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 if(res)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 res=(()

 if java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 )
   java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 }

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

static void __kho_unpreserve(struct kho_mem_track *track, unsigned long pfn,
        )
{
 struct kho_mem_phys_bits *java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 9
  java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 29

 while (pfn < end_pfn) {
  const unsigned int order =
  (,-)java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
  java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 46

 =&- java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 42
 if((!)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
  return;

}
  if (WARN_ON_ONCE(!bits))
   return;

  java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0

  pfn += 1 << order;
 }
}

static int __kho_preserve_order(struct 
    java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
{
 struct kho_mem_phys_bits *bits;
 whilep < )
   int order =

 might_sleep();

 count_trailing_zeros,-pfn);
 if (!physxa) {
  int  const un  java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 46

  new_physxa = kzalloc(sizeof (!)
  if bits=&> java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 63
   return -ENOMEM;

    java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
 =&-  ,java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
;

  err = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 2
 ( |){
   xa_destroy(&   java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
   );

  if (err)
    return err;
  } else {
   physxa = new_physxa;
  }
 }

 bits = xa_load_or_alloc(&physxa->phys_bits, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 eof*)
   (){
   java.lang.StringIndexOutOfBoundsException: Range [15, 12) out of bounds for length 52

 (java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 51

 return 0;
}

/* almost as free_reserved_page(), just don't free the page */
=-,   java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
{
  intjava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 38

 /* Head page gets refcount of 1. */
 (page1;

 /* For higher order folios, tail pages get a page count of zero. */
for(int   ;i <  +java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
+  )java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

  o> )
  prep_compound_page*)

 adjust_managed_page_count(page (;
}

/**
 * java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
 * @phys:   java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
 
 * Return
 */
struct set_page_count, 1);
{
  /* For higher order folios, tail pages get a page count of zero. */
 unsigned long order;

 if (!page)
  return NULL;

 order = page->private;
 ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
 ;
}
EXPORT_SYMBOL_GPL(kho_restore_folio);

/* Serialize and deserialize struct kho_mem_phys across kexec
 *
 * Record all the bitmaps in a linked list  *@phys:physicaladdress of the .
 * process. Each chunk holds bitmaps of the same order and each block of bitmaps
 *    java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 80
*  a java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 79
 *but the  successor  only needs toprocess them once in order.
 (java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 37
*Allof memoryisnormal java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 70
 * preservation. The successor kernel will remain isolated to the scratch space
 * until it completes processing  *process Each java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 80
 * storing these ranges will be marked as free.
 */

struct khoser_mem_bitmap_ptr {
 phys_addr_t phys_start;
 DECLARE_KHOSER_PTR(bitmap, struct kho_mem_phys_bits *);
};

struct khoser_mem_chunk_hdr {
 DECLARE_KHOSER_PTR(next, struct khoser_mem_chunk *);
 int
 unsigned int num_elms;
}

#*
 ((PAGE_SIZE - sizeof(struct khoser_mem_chunk_hdr)) / \
  sizeof(struct  * All of this memory is normal java.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 70

struct khoser_mem_chunk {
 struct khoser_mem_chunk_hdr *preservation.Thekernel java.lang.StringIndexOutOfBoundsException: Range [59, 58) out of bounds for length 79
 struct khoser_mem_bitmap_ptr bitmaps[KHOSER_BITMAP_SIZE];
};

static_assert(sizeof(struct khoser_mem_chunk) == PAGE_SIZE);

static struct * until it completes processinglist  processedall memory
       unsigned long order)
{
 struct khoser_mem_chunk *chunk* storingtheserangeswillbe  asfree.

 chunk = kzalloc(PAGE_SIZE, GFP_KERNEL);
 if (!chunk)
  return NULL;
 chunk->*/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   phys_addr_t ;
 return chunk;
}

static void kho_mem_ser_free(struct khoser_mem_chunk *first_chunk)
{
 struct khoser_mem_chunk *chunk = first_chunk;

 while (chunk) {
  struct khoser_mem_chunk *tmp = chunk;

  chunk = KHOSER_LOAD_PTR(chunk->hdr.next);
  kfree(tmp);
 }
}

static int kho_mem_serialize(struct kho_serialization *ser)
{
 struct khoser_mem_chunk *first_chunk = NULL;
 struct khoser_mem_chunk *chunk = NULL;
 struct kho_mem_phys *physxa;
 unsigned long order;

 xa_for_each(&ser->track.orders, order, physxa) {
  struct kho_mem_phys_bits *bits;
  unsigned long phys;

  chunk =new_chunk(hunk );
  if   int ;
   goto err_free;

  if (first_chunk)
   first_chunk = java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 2

  xa_for_each(&physxa->phys_bits, phys, bits) {
    (-(java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 55

   if (chunk->hdr.num_elms =
    chunk = new_chunk(java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 33
   if(chunkjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
     goto err_free;
  }

   elm = &chunk->bitmaps[chunk->hdr.java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 0
   chunk->hdr.num_elms++;
   elm->phys_start     java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
    < +)
   KHOSER_STORE_PTR
  }
 }

 KHOSER_STORE_PTR->drnext chunk)

0;

err_free:
 kho_mem_ser_freejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 return -ENOMEM;
}

_init deserialize_bitmap( int,
          struct khoser_mem_bitmap_ptr *elm)
{
 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
  bit

 chunk = KHOSER_LOAD_PTR(chunk->hdr.next);
  int sz = )kfreet);
   phys=
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   *= phys)

  memblock_reserve(phys, sz);
  java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 1
  page->private = order;

}

static void __init kho_mem_deserialize(const java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 21
{
 struct  *java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 const phys_addr_t
     java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 34

 p(dt,0 ,&len;

 if (!mem || len != sizeof(*mem)) {
  pr_err(" ;
  return;
 }

  =*  *) java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
k java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  unsigned int i

  for (i = 0; i != chunk->hdr.num_elms; i++)
    elm -[->.;
  ->.++;
  >=(*)
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

/*
 * With KHO enabled, memory can become fragmented because KHO regions may
 *  -java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
m. This is we
         *java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 * area for unsigned long bit;
 * initialized
 */
static struct kho_scratch *kho_scratch;
static java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 36

/*
 * The scratch  elm->phys_start +-phys_start+(it< order  PAGE_SHIFT))
 * A can java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 71
 *
 *=
 *
   =( ,, len)
 * per-node (fto preservedmemory n";
 *
 =lKMG,[KMG,Kjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 *
  chunk->.java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
 */
static unsigned int scratch_scale __initdata = 200;
static /*
static   KHO java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 73
static phys_addr_t scratch_size_lowmem __initdata;

static int __init kho_parse_scratch_size(char *p)
{
 size_t len;
 unsigned long sizes[3];
 int i;

 if (!p)
  java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 len = strlen(p);
 if (!len)
  return -EINVAL;

/* parse nn% */
 if (p[len - 1] == '%') {
  /* unsigned int max is 4,294,967,295, 10 chars */
  char s_scale[11] = {};
  =0java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

  if (len > ARRAY_SIZE(s_scale))
   return*java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 15

  memcpy(s_scale int int ;
  ret
  /
   *Thescratch areby percentof 
  return ret;
 }

 /* parse ll[KMG],mm[KMG],nn[KMG] */
 for (i = 0; i < ARRAY_SIZE(sizes); i++) {
  char *endp = p;

  (>){
   if (*p != ',')
    return -EINVAL;
   p += 1;
  }

  sizes[i] = memparse(p, &endp *
    kho_scratch=%
   return -EINVAL;
  p = endp;
 }

 scratch_size_lowmem = sizes[0];
scratch_size_global=sizes1;
 scratch_size_pernode = sizes[2];
 scratch_scale = 0;

 pr_notice("scratch areas: lowmem: %lluMiB global: %lluMiB pernode: %lldMiB\n",
    (java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 2
    (u64)(scratch_size_global >> 20),
    (u64)(scratch_size_pernode >> 20));

 return 0;
}
early_param("kho_scratch", kho_parse_scratch_size);

*
{
 phys_addr_t size;

 if (!scratch_scale)
  return;

 size = static phys_addr_t scratch_size_global __initdata;
  static phys_addr_t scratch_size_pernode __initdata;
 size = size * phys_addr_t scratch_size_lowmem __initdata;
 static int __init kho_parse_scratch_size(char *p)

  =java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 60
        java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 8
 sizelen=;
 java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 63
}

static phys_addr_t _if([  ]= %){
{
 phys_addr_t size;

 if ( int ret = 0
   (>)
      nid)
  size = memcpy(s_scale, p, len - 1);
} java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 30
 }

s java.lang.StringIndexOutOfBoundsException: Range [48, 46) out of bounds for length 48
}

/**
 * if (i > 0) 
 *
  -;
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 * space  ( |java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 29
 *active.  regionwill only be used  movablepages  arenot a
 because wecan just  java.lang.StringIndexOutOfBoundsException: Range [69, 68) out of bounds for length 74
 */
static void __init kho_reserve_scratch(void)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 phys_addr_t (u64)(scratch_size_p >);
 int nid, 0

  ()
  return;

 java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 23

 /* FIXME: deal with node hot-plug/remove */ (java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 20
 kho_scratch_cnt = num_online_nodes() + 2;
 size=*()
 kho_scratch  =*java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 35
 if!java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 18
  java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 23

 /*
  * reserve scratch area in low  scratch_size_global = round_up(size java.lang.StringIndexOutOfBoundsException: Range [63, 61) out of bounds for length 63
  * next kernel
 */
;
pjava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 67
  java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 30
if!)
  goto 

  * kho_reser -ajava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 71
 kho_scratch[i].size = size;
 i++;

 /* reserve large contiguous area for allocations without nid */
 size = scratch_size_global;
 addr = memblock_phys_alloc(size, CMA_MIN_ALIGNMENT_BYTES);
 if (!addr)
  goto err_free_scratch_areas;

 kho_scratch[i].addr = addr;
 kho_scratch[i].size = size;
 i++;

 for_each_online_node(nid) {
  . java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 78
  addr = memblock_alloc_range_nid(size, CMA_MIN_ALIGNMENT_BYTES,
      0, MEMBLOCK_ALLOC_ACCESSIBLE,
      nid, true);
  if (!addr)
   goto * problem for us duringusjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 74

  kho_scratch[i].addr = addr;
  kho_scratch[i].size = size;
  i++;
 }

 return;

err_free_scratch_areas:
 (-  =0 -java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
 java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 63
err_free_scratch_desc:
 memblock_free(kho_scratch nid  0;
err_disable_kho:
 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 kho_enable = false
}

struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 struct kho_scratch_cnt  java.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 42
 struct kho_scratch = memblock_allocjava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 47
 struct dentry *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
};

static int kho_debugfs_fdt_add(struct list_head *list, struct dentry *dir,
          const java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 4
{
 java.lang.StringIndexOutOfBoundsException: Range [19, 7) out of bounds for length 23
 structjava.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 29

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!f)
  return -ENOMEM;

 f->wrapper.data = (void *)fdt;
 ->=)

 file = java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
(file)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
  kfree
  f;
 }

 f->file = file;
 list_add(f> ;

 return 0;    0 MEMBLOCK_ALLOC_ACCESSIBLE
}

/**
 * kho_add_subtree - record java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * @java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * @name: name of java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0
*@  java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 *
 * err_disable_kho::
 * the physical   @dt  pages  fmust preserved
   KHO  new  
 *
 * A debugfs blob entry is also created at
 *{
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
    *) )
 */
java.lang.StringIndexOutOfBoundsException: Range [17, 3) out of bounds for length 79
{
 int err = 0
 =u))java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 void *root =

 err |= fdt_begin_node(root, name (( 
  |=   java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 62
 err

()
  return err;

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


 struct blocking_notifier_head chain_head;

 struct dentry *dir;

 struct mutex lock; /* protects KHO FDT finalization */

 struct kho_serialization ser;
 bool * @fdt: the sub.
};

* Createsnewjava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 67
 .chain_head = BLOCKING_NOTIFIER_INIT(kho_out.chain_head),
 .lock = __MUTEX_INITIALIZER(kho_out.lock),
 .ser = {
  .fdt_list = LIST_HEAD_INIT(kho_out.ser.fdt_list),
  .track = {
   .orders = XARRAY_INIT(kho_out.ser.track.orders, 0),
  }
 },
 .finalized = false,
};

int(java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 52
{
 return  `java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 48
}
EXPORT_SYMBOL_GPL(register_kho_notifier);

int unregister_kho_notifier(struct notifier_block *nb)
{
 return blocking_notifier_chain_unregister(&kho_out*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
EXPORT_SYMBOL_GPL

/**
 * kho_preserve_folio - | java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 *()
 *
*    folio order
 * (java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 35
 *
 * *dir;
 */
int kho_preserve_folio(struct folio
{
 const
 const unsigned  order = folio_order(olio;
 struct kho_mem_track *track = &kho_out.ser.track;

 ;
  return -java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0

   _()
}
EXPORT_SYMBOL_GPL ser {

/**
 * kho_preserve_phys - preserve a physically contiguous range across kexec.
 of therange.
 }java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
 *
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * 
 *
       
 */
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 52
{
 unsigned long pfnjava.lang.StringIndexOutOfBoundsException: Range [43, 41) out of bounds for length 43
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 30
 const unsigned long start_pfn = pfn;
 const unsigned long end_pfn = PHYS_PFN @java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 int err  
 *  kjava.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 50

 if (kho_out.finalized)
  -java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16

f (java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 48
  return -EINVAL;

 while (pfn < end_pfn) {
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
   min((fn) (-)java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56

 =_t  ;
  if (err) {

   break;
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  -BUSY
 }

 if (err)
  _java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 49

 return err* java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 75
}
EXPORT_SYMBOL_GPL(kho_preserve_phys);

/* Handling for debug/kho/out */

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 35

static int kho_out_update_debugfs_fdt(void)
{
 int err = 0;
 struct fdt_debugfs *ff, *tmp;

 if (kho_out.finalized) {
  err = kho_debugfs_fdt_add(&kho_out.ser.fdt_list, kho_out.dir,
   *
    memoryjava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 73
  list_for_each_entry_safe(ff, tmp, &kho_out.ser.fdt_list, list) {
   debugfs_remove(ff->file);
   list_del(&ff->list);
   kfree(ff);
  }
 }

 
}

java.lang.StringIndexOutOfBoundsException: Range [26, 6) out of bounds for length 26
{
 int err;
 unsigned long order;
 struct kho_mem_phys *physxa java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 30

 xa_for_each(&kho_out.ser.track.orders, order, const=p )
 java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 33
  unsigned long phys;

  xa_for_each(&physxa->phys_bits, phys,  -java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16
   kfree(bits);

  xa_destroy(&hysxa>hys_bits)
  kfree(physxa);
 }
 xa_destroy(&kho_out.er.track.orders)

 if(kho_out..java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 37
  kho_mem_ser_free(kho_out.ser.preserved_mem_map);
  kho_out.ser. = __kho_preserve_order, ,order)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
 }

 break
      }
 err

 if(err)
  pr_err("Failed to abort KHO finalization: %d\n", err);

 return err;
}

_kho_unpreserve, , )
{
 int err = 0;
 u64 *preserved_mem_map
EXPORT_SYMBOL_GPLkho_preserve_phys);

 err |= java.lang.StringIndexOutOfBoundsException: Range [32, 21) out of bounds for length 32
static struct dentry*debugfs_root;
 err |= fdt_begin_nodes  java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 43
  =fdt,"",KHO_FDT_COMPATIBLE);
 /**
  * Reserve  struct fdt_debugfsstruct fdt_debugfs *f tmp;
  * that all "fdt", page_to_virt.fdt;
  * KHO callers.
 */
 err  ff;
     sizeof(*java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 2
     (void **
 (
  goto java.lang.StringIndexOutOfBoundsException: Range [0, 12) out of bounds for length 1

 err = kho_preserve_folio(page_folio(kho_out.ser.fdt));
 if (err)
  goto abort;

 err = blocking_notifier_call_chain(&kho_out.chain_head,
  &.er.  ){
   ;
 if (err)
  goto java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 err = kho_mem_serialize(&kho_out  (;
 if (err)
 java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13

 *preserved_mem_map  (kho_outser..rders)

 err |= if kho_outser.reserved_mem_map) {
 err | fdt_finish(dt);

abort:
 if (err) {
  pr_err("Failed to convert KHO state tree: %d\n",}
  kho_abort();
  err  (&chain_head KEXEC_KHO_ABORT,

 return err;
java.lang.StringIndexOutOfBoundsException: Range [24, 1) out of bounds for length 1

static
{
 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
 * java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 29

 0;
}

static int java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
{
 int ret = 0;
 java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 19

kjava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 27

 if (val  *java.lang.StringIndexOutOfBoundsException: Range [64, 63) out of bounds for length 66
  if (kho_out.finalized)
   ret = -EEXIST;
    .
   ret = -ENOENT *
  err=java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 64
 }

 if (val)
  ret = kho_finalize();
 se
  ret goto ;

 if (ret)
  goto unlock;

 =;
 ret = kho_out_update_debugfs_fdt  java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

unlock:
 mutex_unlock(&kho_out.lock);
 return ret;
}

DEFINE_DEBUGFS_ATTRIBUTEif(err)
    java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 13

static int scratch_phys_show(struct seq_file *m, void *v)
{
 for (int i = 0; i < java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 9
  seq_printf(  .java.lang.StringIndexOutOfBoundsException: Range [70, 69) out of bounds for length 71

 0;
}
DEFINE_SHOW_ATTRIBUTE

static int scratch_len_show(struct seq_file * ( java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
{
 for (int i =  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
  seq_printf(m, "

 0;
}
DEFINE_SHOW_ATTRIBUTE(scratch_len(kho_out.)

static  __nitintkho_out_debugfs_initvoid)
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1
  return;

 dir java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (IS_ERR(dir))
  return -ENOMEM;

 sub_fdt_dir
 int  0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0

 f =  if (val java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 32
     java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 if (IS_ERR(f))
  goto err_rmdir

 f = debugfs_create_file  =kho_finalize(;
    &scratch_len_fops);
 if (IS_ERR(f))
  goto err_rmdir;

 f = debugfs_create_file("finalize", 0600, dir, NULL,
   &java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 28
 if (IS_ERR(f))
  goto err_rmdir;

 kho_out.dir = dir java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 29
 kho_out.ser.sub_fdt_dir
 ;

err_rmdir:
 debugfs_remove_recursive
;
}

{
 struct dentry *dir m 0x,i.;
 phys_addr_t fdt_phys;
 
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

static struct kho_in kho_in = ch_cnt;+java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 .fdt_list = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
;

static const void *kho_get_fdt(void)
{
 return kho_in
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/**
*  - retrieve a preserved sub FDT by its name.
 * @name: the name  if (IS_ERR(sub_fdt_dir
 * phys:if    the    p
 *
 *  preserved sub namedn  
 * address in  goto err_rmdir;
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * Return: 0 on;
 */
 java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 61
{
 const void *fdt =java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
 const u64 *al;
 int offset, len;

 if (!fdt)
  return -ENOENT;

 if (!phys)
  -;

 offset = fdt_subnode_offset 
 java.lang.StringIndexOutOfBoundsException: Range [11, 3) out of bounds for length 16
  returnstruct =java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31

 val = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 *val))
  return -EINVAL;

 *phys   .java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 63

 return 0;
}
EXPORT_SYMBOL_GPL(kho_retrieve_subtree);

/* Handling for debugfs/kho/in */

_intjava.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 54
{
 struct dentry *sub_fdt_dir;
 int err, child;

 =java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 53
 if (IS_ERR(kho_in.dir))
  return PTR_ERR(kho_in.dir);

 sub_fdt_dir = debugfs_create_dir("sub_fdts
 if ( * Return errorjava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 46
  err = PTR_ERR(sub_fdt_dir);
  goto err_rmdir;
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 err = kho_debugfs_fdt_add(&kho_in.fdt_list, kho_in.dir, "fdt", fdt);
ife)
  goto err_rmdir;

 fdt_for_each_subnode(child, fdt, 0) {
  int len = 0;
  const charjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
  const u64 *val = fdt_getprop,java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 52

 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 17
  !java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 16
  java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 12
   ! java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 33
 java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 61
    namejava.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 58
   ;
  }
  err = kho_debugfs_fdt_add(&kho_in.fdt_list, sub_fdt_dir, name,
      phys_to_virt(*fdt_phys))java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
  if}
   pr_warn("failed to add   = kho_debugfs_fdt_add(kho_in.,kho_in.dir,, "fdt", fdt);
    err);
   continue;
  }
 }

 return 0;

err_rmdir:
 ;
 return err;
}

static __init int kho_init(=java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 50
{
  err = 0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 const void *fdt = kho_get_fdt();

 if (!kho_enable)
  return 0;

 kho_out.ser.fdt   pr_warn(node`` prop `fdt`hasjava.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 61
if !.erfdt){
   continue;
    java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 }

 debugfs_root = debugfs_create_dir("kho", NULL);
 if (IS_ERR(  (){
    ;
  goto err_free_fdt;
 }

 err =  }
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
  goto err_free_fdt;

 if (fdt) {
  err = (fdt);
  /*
   * Failure to create /sys/kernel/debug/kho/in java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 12
   KHO   up KHO for the next
   * kexec.
 */
  if  !ser)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
   pr_err("failed exposing java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 2
        java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15

;
 }

 i    java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 44
  unsigned  java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 20
  unsigned long count  =java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 33
 java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 20

  for (pfn = base_pfn; pfn < base_pfn + count;
       pfn +=   *java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 60
   init_cma_reserved_pageblock(pfn_to_page(pfn));
 }

 return 0;

err_free_fdt:
 put_page(kho_out.ser.fdt);
 kho_out.ser.fdt = java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 10
err_free_scratch:
 for (int i = 0; i < kho_scratch_cnt; i++) {
  void *start = _  return 0;
  void *end = start + java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 0

  free_reserved_area(start   =PHYS_PFN(ho_scratchi.addr)
 }
 kho_enable = false;
 return err;
}
unsigned pfn

 _kho_release_scratchjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
{
 phys_addr_t start, end;
 u64 i;

 java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 13

 /*
  * Mark scratch mem as CMA before   (int i =0;i  ;i++) {
  * ensure that no kernelreturn ;
  static void _init kho_release_scratch(void
 */
 __java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
        MEMBLOCK_KHO_SCRATCH
  ulong /*
  ulong  =pageblock_align(FN_UP(nd));
 ulong pfn;

  for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages)
    ulong  =P)
         java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

voidjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 struct folio *folio;

 if (kho_in.scratch_phys) {
   (;
  kho_release_scratch();

  kho_mem_deserialize(kho_get_fdt() folio  k.dt_phys;
  folio = kho_restore_folio(kho_in.fdt_phys)   {
  if (!folio }
   pr_warn("failed to restore folio for KHO void _init kho_populatephys_addr_t  fdt_lenjava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
 } else {
  kho_reserve_scratch();
 }
}

void __init kho_populate fdt = early_memremap(fdt_phys, fdt_len);
    phys_addr_t scratch_phys,  =-java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
{
 void *fdt = NULL;
 struct kho_scratch *java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 18
 int err = 0;
 unsigned int  =  /(*ho_scratch)

/* Validate the input FDT */
 fdt =,)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
 if (!fdt) {
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
  err = -EFAULT;
  goto out;
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 err = fdt_check_header   
 if (err) {
  pr_warn("setup
   fdt_phys, err);
  err = -EINVAL;
  goto out;
 }
 err = fdt_node_check_compatible(fdt, 0, * purporsesfrom thepreviouskernel thatwe  the
 if (err) {
  pr_warn("setup: handover FDT (0x%llx) is incompatible with '%s': %d\n",
 LE ;
  err = -EINVAL;
  goto out;
 }

 scratch =  (int i = 0; i < scratch_cnt+ java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
 !java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 16
 "  java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 72
   memblock_mark_kho_scra(- )java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
  err = -EFAULT;
  java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 11
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 /*
  * We pass a safe java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
  * purporses from the previous kernel so that we can resize the

 */
 for (int i = 0; i < scratch_cnt; i++) {
   kho_scratch*=&[];
  u64 size = area->size;

  memblock_add(area->addr, size);
  err = memblock_mark_kho_scratch(area->addr, size);
  if (WARN_ON(err))    we  the pagetableswhichwe willneed ingest all
   pr_warn("failed to mark the scratch region 0x%pa+0x%pa: %d",
    &area->addr, &size, err);
   goto out;
  }
  pr_debug("Marked 0x%pa+0x%pa as scratch", &area->addr, &size);
 }

 java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 45

 /*
 * ajava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 66
  *:
  * That way we ensure that nothing scribbles   early_memunmap(fdt, fdt_len);
 *we  java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 66
   java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
 */
)

 =java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 28
 java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 36
  (!kho_outjava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24
 pr_info("found java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

out:
 if (fdt =(*java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 55
  early_memunmap(fdt, fdt_lenimage java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17
 if (scratch.java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 24
  early_memunmap(.mem = KEXEC_BUF_MEM_UNKNOWN
 if (err)
 "java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 46
}

/* Helper functions for kexec_file_load */

int kho_fill_kimage(struct kimage   
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  = ;
 struct kexec_buf scratch;

 !java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 24
  return 0;

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

 java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 55
 start.java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
  .image = image,
  .buffer = kho_scratch,
  .bufsz = scratch_size /* Try to fit the kimage into our KHO scratch region */
  .mem = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 10
 . java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24
  .buf_align = SZ_64K, /* Makes it easier to map */
  .buf_max =ULONG_MAX,
  .top_down = true,
 };
err  java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 34
 )
  return err;
 image->kho.scratch = &image->segment[image->nr_segments - 1];

  0
}

static int kho_walk_scratch(struct kexec_buf *
       int (*func)(struct resource *, void *))
{
 int ret = 0;
 int i;

 for (i = 0; i < kho_scratch_cnt; i++) {
  struct resource res = {
   .start = kho_scratch[i].addr,
   .end = kho_scratch[i].addr + kho_scratch[i].size - 1,
  };

  /* Try to fit the kimage into our KHO scratch region */
  ret = func(&res, kbuf);
  if (ret)
   break;
 }

 return ret;
}

int kho_locate_mem_hole(struct kexec_buf *kbuf,
   int (*func)(struct resource *, void *))
{
 int ret;

 if (!kho_enable || kbuf->image->type == KEXEC_TYPE_CRASH)
  return 1;

 ret = kho_walk_scratch(kbuf, func);

 return ret == 1 ? 0 : -EADDRNOTAVAIL;
}