1#ifndef SYSEMU_NUMA_H
2#define SYSEMU_NUMA_H
3
4#include "qemu/bitmap.h"
5#include "qapi/qapi-types-machine.h"
6#include "exec/cpu-common.h"
7
8struct CPUArchId;
9
10#define MAX_NODES 128
11#define NUMA_NODE_UNASSIGNED MAX_NODES
12#define NUMA_DISTANCE_MIN 10
13#define NUMA_DISTANCE_DEFAULT 20
14#define NUMA_DISTANCE_MAX 254
15#define NUMA_DISTANCE_UNREACHABLE 255
16
17struct NodeInfo {
18 uint64_t node_mem;
19 struct HostMemoryBackend *node_memdev;
20 bool present;
21 uint8_t distance[MAX_NODES];
22};
23
24struct NumaNodeMem {
25 uint64_t node_mem;
26 uint64_t node_plugged_mem;
27};
28
29struct NumaState {
30 /* Number of NUMA nodes */
31 int num_nodes;
32
33 /* Allow setting NUMA distance for different NUMA nodes */
34 bool have_numa_distance;
35
36 /* NUMA nodes information */
37 NodeInfo nodes[MAX_NODES];
38};
39typedef struct NumaState NumaState;
40
41void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp);
42void parse_numa_opts(MachineState *ms);
43void numa_complete_configuration(MachineState *ms);
44void query_numa_node_mem(NumaNodeMem node_mem[], MachineState *ms);
45extern QemuOptsList qemu_numa_opts;
46void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
47 int nb_nodes, ram_addr_t size);
48void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
49 int nb_nodes, ram_addr_t size);
50void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev,
51 Error **errp);
52
53#endif
54