| 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 | |
| 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 | } |