1 /*
2 * libqos malloc support for PC
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 #include "qemu/osdep.h"
14 #include "malloc-pc.h"
15 #include "fw_cfg.h"
16
17 #include "standard-headers/linux/qemu_fw_cfg.h"
18
19 #define ALLOC_PAGE_SIZE (4096)
20
pc_alloc_init(QGuestAllocator * s,QTestState * qts,QAllocOpts flags)21 void pc_alloc_init(QGuestAllocator *s, QTestState *qts, QAllocOpts flags)
22 {
23 uint64_t ram_size;
24 QFWCFG *fw_cfg = pc_fw_cfg_init(qts);
25
26 ram_size = qfw_cfg_get_u64(fw_cfg, FW_CFG_RAM_SIZE);
27 alloc_init(s, flags, 1 << 20, MIN(ram_size, 0xE0000000), ALLOC_PAGE_SIZE);
28
29 /* clean-up */
30 pc_fw_cfg_uninit(fw_cfg);
31 }
32