tests/libqos/malloc.h

   1 /*
   2  * libqos malloc support
   3  *
   4  * Copyright IBM, Corp. 2012-2013
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef LIBQOS_MALLOC_H
  14 #define LIBQOS_MALLOC_H
  15
  16 #include <stdint.h>
  17 #include <sys/types.h>
  18 #include "qemu/queue.h"
  19
  20 #define MLIST_ENTNAME entries
  21
  22 typedef enum {
  23     ALLOC_NO_FLAGS    = 0x00,
  24     ALLOC_LEAK_WARN   = 0x01,
  25     ALLOC_LEAK_ASSERT = 0x02,
  26     ALLOC_PARANOID    = 0x04
  27 } QAllocOpts;
  28
  29 typedef QTAILQ_HEAD(MemList, MemBlock) MemList;
  30 typedef struct MemBlock {
  31     QTAILQ_ENTRY(MemBlock) MLIST_ENTNAME;
  32     uint64_t size;
  33     uint64_t addr;
  34 } MemBlock;
  35
  36 typedef struct QGuestAllocator {
  37     QAllocOpts opts;
  38     uint64_t start;
  39     uint64_t end;
  40     uint32_t page_size;
  41
  42     MemList used;
  43     MemList free;
  44 } QGuestAllocator;
  45
  46 MemBlock *mlist_new(uint64_t addr, uint64_t size);
  47 void alloc_uninit(QGuestAllocator *allocator);
  48
  49 /* Always returns page aligned values */
  50 uint64_t guest_alloc(QGuestAllocator *allocator, size_t size);
  51 void guest_free(QGuestAllocator *allocator, uint64_t addr);
  52
  53 #endif