18a0743cfSAnthony Liguori /* 28a0743cfSAnthony Liguori * libqos malloc support for PC 38a0743cfSAnthony Liguori * 48a0743cfSAnthony Liguori * Copyright IBM, Corp. 2012-2013 58a0743cfSAnthony Liguori * 68a0743cfSAnthony Liguori * Authors: 78a0743cfSAnthony Liguori * Anthony Liguori <aliguori@us.ibm.com> 88a0743cfSAnthony Liguori * 98a0743cfSAnthony Liguori * This work is licensed under the terms of the GNU GPL, version 2 or later. 108a0743cfSAnthony Liguori * See the COPYING file in the top-level directory. 118a0743cfSAnthony Liguori */ 128a0743cfSAnthony Liguori 138a0743cfSAnthony Liguori #include "libqos/malloc-pc.h" 1426491a38SMarkus Armbruster #include "libqos/fw_cfg.h" 158a0743cfSAnthony Liguori 168a0743cfSAnthony Liguori #define NO_QEMU_PROTOS 178a0743cfSAnthony Liguori #include "hw/nvram/fw_cfg.h" 188a0743cfSAnthony Liguori 198a0743cfSAnthony Liguori #include "qemu-common.h" 208a0743cfSAnthony Liguori #include <glib.h> 218a0743cfSAnthony Liguori 228a0743cfSAnthony Liguori #define PAGE_SIZE (4096) 238a0743cfSAnthony Liguori 24ec2f1605SJohn Snow /* 25ec2f1605SJohn Snow * Mostly for valgrind happiness, but it does offer 26ec2f1605SJohn Snow * a chokepoint for debugging guest memory leaks, too. 27ec2f1605SJohn Snow */ 28ec2f1605SJohn Snow void pc_alloc_uninit(QGuestAllocator *allocator) 29ec2f1605SJohn Snow { 30292be092SMarc Marí alloc_uninit(allocator); 31ec2f1605SJohn Snow } 32ec2f1605SJohn Snow 33292be092SMarc Marí QGuestAllocator *pc_alloc_init_flags(QAllocOpts flags) 348a0743cfSAnthony Liguori { 35af77f2cdSJohn Snow QGuestAllocator *s; 368a0743cfSAnthony Liguori uint64_t ram_size; 378a0743cfSAnthony Liguori QFWCFG *fw_cfg = pc_fw_cfg_init(); 38af77f2cdSJohn Snow 39af77f2cdSJohn Snow ram_size = qfw_cfg_get_u64(fw_cfg, FW_CFG_RAM_SIZE); 40fa02e608SJohn Snow s = alloc_init_flags(flags, 1 << 20, MIN(ram_size, 0xE0000000)); 41*f6f363c1SJohn Snow alloc_set_page_size(s, PAGE_SIZE); 428a0743cfSAnthony Liguori 43f3cdcbaeSJohn Snow /* clean-up */ 44f3cdcbaeSJohn Snow g_free(fw_cfg); 45f3cdcbaeSJohn Snow 46292be092SMarc Marí return s; 478a0743cfSAnthony Liguori } 48ec2f1605SJohn Snow 49ec2f1605SJohn Snow inline QGuestAllocator *pc_alloc_init(void) 50ec2f1605SJohn Snow { 51292be092SMarc Marí return pc_alloc_init_flags(ALLOC_NO_FLAGS); 52ec2f1605SJohn Snow } 53