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