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 #include "qemu-common.h" 20 21 #define ALLOC_PAGE_SIZE (4096) 22 23 void 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), ALLOC_PAGE_SIZE); 30 31 /* clean-up */ 32 pc_fw_cfg_uninit(fw_cfg); 33 } 34