xref: /openbmc/qemu/include/sysemu/numa.h (revision 8779fccb)
1 #ifndef SYSEMU_NUMA_H
2 #define SYSEMU_NUMA_H
3 
4 #include "qemu/bitmap.h"
5 #include "qemu/option.h"
6 #include "sysemu/sysemu.h"
7 #include "sysemu/hostmem.h"
8 #include "hw/boards.h"
9 
10 extern int nb_numa_nodes;   /* Number of NUMA nodes */
11 
12 struct numa_addr_range {
13     ram_addr_t mem_start;
14     ram_addr_t mem_end;
15     QLIST_ENTRY(numa_addr_range) entry;
16 };
17 
18 typedef struct node_info {
19     uint64_t node_mem;
20     unsigned long *node_cpu;
21     struct HostMemoryBackend *node_memdev;
22     bool present;
23     QLIST_HEAD(, numa_addr_range) addr; /* List to store address ranges */
24 } NodeInfo;
25 
26 extern NodeInfo numa_info[MAX_NODES];
27 void parse_numa_opts(MachineClass *mc);
28 void numa_post_machine_init(void);
29 void query_numa_node_mem(uint64_t node_mem[]);
30 extern QemuOptsList qemu_numa_opts;
31 void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node);
32 void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node);
33 uint32_t numa_get_node(ram_addr_t addr, Error **errp);
34 
35 /* on success returns node index in numa_info,
36  * on failure returns nb_numa_nodes */
37 int numa_get_node_for_cpu(int idx);
38 #endif
39