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 /* the value of AcpiHmatLBInfo flags */ 18 enum { 19 HMAT_LB_MEM_MEMORY = 0, 20 HMAT_LB_MEM_CACHE_1ST_LEVEL = 1, 21 HMAT_LB_MEM_CACHE_2ND_LEVEL = 2, 22 HMAT_LB_MEM_CACHE_3RD_LEVEL = 3, 23 HMAT_LB_LEVELS /* must be the last entry */ 24 }; 25 26 /* the value of AcpiHmatLBInfo data type */ 27 enum { 28 HMAT_LB_DATA_ACCESS_LATENCY = 0, 29 HMAT_LB_DATA_READ_LATENCY = 1, 30 HMAT_LB_DATA_WRITE_LATENCY = 2, 31 HMAT_LB_DATA_ACCESS_BANDWIDTH = 3, 32 HMAT_LB_DATA_READ_BANDWIDTH = 4, 33 HMAT_LB_DATA_WRITE_BANDWIDTH = 5, 34 HMAT_LB_TYPES /* must be the last entry */ 35 }; 36 37 #define UINT16_BITS 16 38 39 struct NodeInfo { 40 uint64_t node_mem; 41 struct HostMemoryBackend *node_memdev; 42 bool present; 43 bool has_cpu; 44 uint8_t lb_info_provided; 45 uint16_t initiator; 46 uint8_t distance[MAX_NODES]; 47 }; 48 49 struct NumaNodeMem { 50 uint64_t node_mem; 51 uint64_t node_plugged_mem; 52 }; 53 54 struct HMAT_LB_Data { 55 uint8_t initiator; 56 uint8_t target; 57 uint64_t data; 58 }; 59 typedef struct HMAT_LB_Data HMAT_LB_Data; 60 61 struct HMAT_LB_Info { 62 /* Indicates it's memory or the specified level memory side cache. */ 63 uint8_t hierarchy; 64 65 /* Present the type of data, access/read/write latency or bandwidth. */ 66 uint8_t data_type; 67 68 /* The range bitmap of bandwidth for calculating common base */ 69 uint64_t range_bitmap; 70 71 /* The common base unit for latencies or bandwidths */ 72 uint64_t base; 73 74 /* Array to store the latencies or bandwidths */ 75 GArray *list; 76 }; 77 typedef struct HMAT_LB_Info HMAT_LB_Info; 78 79 struct NumaState { 80 /* Number of NUMA nodes */ 81 int num_nodes; 82 83 /* Allow setting NUMA distance for different NUMA nodes */ 84 bool have_numa_distance; 85 86 /* Detect if HMAT support is enabled. */ 87 bool hmat_enabled; 88 89 /* NUMA nodes information */ 90 NodeInfo nodes[MAX_NODES]; 91 92 /* NUMA nodes HMAT Locality Latency and Bandwidth Information */ 93 HMAT_LB_Info *hmat_lb[HMAT_LB_LEVELS][HMAT_LB_TYPES]; 94 95 /* Memory Side Cache Information Structure */ 96 NumaHmatCacheOptions *hmat_cache[MAX_NODES][HMAT_LB_LEVELS]; 97 }; 98 typedef struct NumaState NumaState; 99 100 void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp); 101 void parse_numa_opts(MachineState *ms); 102 void parse_numa_hmat_lb(NumaState *numa_state, NumaHmatLBOptions *node, 103 Error **errp); 104 void parse_numa_hmat_cache(MachineState *ms, NumaHmatCacheOptions *node, 105 Error **errp); 106 void numa_complete_configuration(MachineState *ms); 107 void query_numa_node_mem(NumaNodeMem node_mem[], MachineState *ms); 108 extern QemuOptsList qemu_numa_opts; 109 void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes, 110 int nb_nodes, ram_addr_t size); 111 void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes, 112 int nb_nodes, ram_addr_t size); 113 void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev, 114 Error **errp); 115 bool numa_uses_legacy_mem(void); 116 117 #endif 118