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 extern int nb_numa_nodes;   /* Number of NUMA nodes */
  18 extern bool have_numa_distance;
  19
  20 struct NodeInfo {
  21     uint64_t node_mem;
  22     struct HostMemoryBackend *node_memdev;
  23     bool present;
  24     uint8_t distance[MAX_NODES];
  25 };
  26
  27 struct NumaNodeMem {
  28     uint64_t node_mem;
  29     uint64_t node_plugged_mem;
  30 };
  31
  32 extern NodeInfo numa_info[MAX_NODES];
  33
  34 void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp);
  35 void parse_numa_opts(MachineState *ms);
  36 void numa_complete_configuration(MachineState *ms);
  37 void query_numa_node_mem(NumaNodeMem node_mem[]);
  38 extern QemuOptsList qemu_numa_opts;
  39 void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
  40                                  int nb_nodes, ram_addr_t size);
  41 void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
  42                                   int nb_nodes, ram_addr_t size);
  43 void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev,
  44                        Error **errp);
  45
  46 #endif