include/sysemu/numa.h

   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
   8 struct 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
  17 struct NodeInfo {
  18     uint64_t node_mem;
  19     struct HostMemoryBackend *node_memdev;
  20     bool present;
  21     uint8_t distance[MAX_NODES];
  22 };
  23
  24 struct NumaNodeMem {
  25     uint64_t node_mem;
  26     uint64_t node_plugged_mem;
  27 };
  28
  29 struct 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 };
  39 typedef struct NumaState NumaState;
  40
  41 void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp);
  42 void parse_numa_opts(MachineState *ms);
  43 void numa_complete_configuration(MachineState *ms);
  44 void query_numa_node_mem(NumaNodeMem node_mem[], MachineState *ms);
  45 extern QemuOptsList qemu_numa_opts;
  46 void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
  47                                  int nb_nodes, ram_addr_t size);
  48 void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
  49                                   int nb_nodes, ram_addr_t size);
  50 void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev,
  51                        Error **errp);
  52
  53 #endif