LXR qemu/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
   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