include/sysemu/numa.h

   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 extern bool have_numa_distance;
  12
  13 struct numa_addr_range {
  14     ram_addr_t mem_start;
  15     ram_addr_t mem_end;
  16     QLIST_ENTRY(numa_addr_range) entry;
  17 };
  18
  19 typedef struct node_info {
  20     uint64_t node_mem;
  21     unsigned long *node_cpu;
  22     struct HostMemoryBackend *node_memdev;
  23     bool present;
  24     QLIST_HEAD(, numa_addr_range) addr; /* List to store address ranges */
  25     uint8_t distance[MAX_NODES];
  26 } NodeInfo;
  27
  28 extern NodeInfo numa_info[MAX_NODES];
  29 void parse_numa_opts(MachineClass *mc);
  30 void numa_post_machine_init(void);
  31 void query_numa_node_mem(uint64_t node_mem[]);
  32 extern QemuOptsList qemu_numa_opts;
  33 void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node);
  34 void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node);
  35 uint32_t numa_get_node(ram_addr_t addr, Error **errp);
  36
  37 /* on success returns node index in numa_info,
  38  * on failure returns nb_numa_nodes */
  39 int numa_get_node_for_cpu(int idx);
  40 #endif