53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/*
|
|
* libqos malloc support for PC
|
|
*
|
|
* Copyright IBM, Corp. 2012-2013
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "libqos/malloc-pc.h"
|
|
#include "libqos/fw_cfg.h"
|
|
|
|
#define NO_QEMU_PROTOS
|
|
#include "hw/nvram/fw_cfg.h"
|
|
|
|
#include "qemu-common.h"
|
|
#include <glib.h>
|
|
|
|
#define PAGE_SIZE (4096)
|
|
|
|
/*
|
|
* Mostly for valgrind happiness, but it does offer
|
|
* a chokepoint for debugging guest memory leaks, too.
|
|
*/
|
|
void pc_alloc_uninit(QGuestAllocator *allocator)
|
|
{
|
|
alloc_uninit(allocator);
|
|
}
|
|
|
|
QGuestAllocator *pc_alloc_init_flags(QAllocOpts flags)
|
|
{
|
|
QGuestAllocator *s;
|
|
uint64_t ram_size;
|
|
QFWCFG *fw_cfg = pc_fw_cfg_init();
|
|
|
|
ram_size = qfw_cfg_get_u64(fw_cfg, FW_CFG_RAM_SIZE);
|
|
s = alloc_init_flags(flags, 1 << 20, MIN(ram_size, 0xE0000000));
|
|
alloc_set_page_size(s, PAGE_SIZE);
|
|
|
|
/* clean-up */
|
|
g_free(fw_cfg);
|
|
|
|
return s;
|
|
}
|
|
|
|
inline QGuestAllocator *pc_alloc_init(void)
|
|
{
|
|
return pc_alloc_init_flags(ALLOC_NO_FLAGS);
|
|
}
|