tests/libqos/malloc-pc.c

   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
  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), PAGE_SIZE);
  30
  31     /* clean-up */
  32     pc_fw_cfg_uninit(fw_cfg);
  33 }