jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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 "libqos/malloc-pc.h"
15#include "libqos/fw_cfg.h"
16
17#include "standard-headers/linux/qemu_fw_cfg.h"
18
19#include "qemu-common.h"
20
21#define PAGE_SIZE (4096)
22
23void pc_alloc_init(QGuestAllocator *s, QTestState *qts, QAllocOpts flags)
24{
25 uint64_t ram_size;
26 QFWCFG *fw_cfg = pc_fw_cfg_init(qts);
27
28 ram_size = qfw_cfg_get_u64(fw_cfg, FW_CFG_RAM_SIZE);
29 alloc_init(s, flags, 1 << 20, MIN(ram_size, 0xE0000000), PAGE_SIZE);
30
31 /* clean-up */
32 pc_fw_cfg_uninit(fw_cfg);
33}