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 "qemu/queue.h"
17 #include "../libqtest.h"
18 
19 typedef enum {
20     ALLOC_NO_FLAGS    = 0x00,
21     ALLOC_LEAK_WARN   = 0x01,
22     ALLOC_LEAK_ASSERT = 0x02,
23     ALLOC_PARANOID    = 0x04
24 } QAllocOpts;
25 
26 typedef QTAILQ_HEAD(MemList, MemBlock) MemList;
27 
28 typedef struct QGuestAllocator {
29     QAllocOpts opts;
30     uint64_t start;
31     uint64_t end;
32     uint32_t page_size;
33 
34     MemList *used;
35     MemList *free;
36 } QGuestAllocator;
37 
38 /* Always returns page aligned values */
39 uint64_t guest_alloc(QGuestAllocator *allocator, size_t size);
40 void guest_free(QGuestAllocator *allocator, uint64_t addr);
41 void migrate_allocator(QGuestAllocator *src, QGuestAllocator *dst);
42 
43 void alloc_set_flags(QGuestAllocator *allocator, QAllocOpts opts);
44 
45 void alloc_init(QGuestAllocator *alloc, QAllocOpts flags,
46                 uint64_t start, uint64_t end,
47                 size_t page_size);
48 void alloc_destroy(QGuestAllocator *allocator);
49 
50 #endif
51