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- #ifndef SYSTEM_NUMA_H
- #define SYSTEM_NUMA_H
- #include "qemu/bitmap.h"
- #include "qapi/qapi-types-machine.h"
- struct CPUArchId;
- #define MAX_NODES 128
- #define NUMA_NODE_UNASSIGNED MAX_NODES
- #define NUMA_DISTANCE_MIN 10
- #define NUMA_DISTANCE_DEFAULT 20
- #define NUMA_DISTANCE_MAX 254
- #define NUMA_DISTANCE_UNREACHABLE 255
- /* the value of AcpiHmatLBInfo flags */
- enum {
- HMAT_LB_MEM_MEMORY = 0,
- HMAT_LB_MEM_CACHE_1ST_LEVEL = 1,
- HMAT_LB_MEM_CACHE_2ND_LEVEL = 2,
- HMAT_LB_MEM_CACHE_3RD_LEVEL = 3,
- HMAT_LB_LEVELS /* must be the last entry */
- };
- /* the value of AcpiHmatLBInfo data type */
- enum {
- HMAT_LB_DATA_ACCESS_LATENCY = 0,
- HMAT_LB_DATA_READ_LATENCY = 1,
- HMAT_LB_DATA_WRITE_LATENCY = 2,
- HMAT_LB_DATA_ACCESS_BANDWIDTH = 3,
- HMAT_LB_DATA_READ_BANDWIDTH = 4,
- HMAT_LB_DATA_WRITE_BANDWIDTH = 5,
- HMAT_LB_TYPES /* must be the last entry */
- };
- #define UINT16_BITS 16
- typedef struct NodeInfo {
- uint64_t node_mem;
- struct HostMemoryBackend *node_memdev;
- bool present;
- bool has_cpu;
- bool has_gi;
- uint8_t lb_info_provided;
- uint16_t initiator;
- uint8_t distance[MAX_NODES];
- } NodeInfo;
- typedef struct NumaNodeMem {
- uint64_t node_mem;
- uint64_t node_plugged_mem;
- } NumaNodeMem;
- struct HMAT_LB_Data {
- uint8_t initiator;
- uint8_t target;
- uint64_t data;
- };
- typedef struct HMAT_LB_Data HMAT_LB_Data;
- struct HMAT_LB_Info {
- /* Indicates it's memory or the specified level memory side cache. */
- uint8_t hierarchy;
- /* Present the type of data, access/read/write latency or bandwidth. */
- uint8_t data_type;
- /* The range bitmap of bandwidth for calculating common base */
- uint64_t range_bitmap;
- /* The common base unit for latencies or bandwidths */
- uint64_t base;
- /* Array to store the latencies or bandwidths */
- GArray *list;
- };
- typedef struct HMAT_LB_Info HMAT_LB_Info;
- struct NumaState {
- /* Number of NUMA nodes */
- int num_nodes;
- /* Allow setting NUMA distance for different NUMA nodes */
- bool have_numa_distance;
- /* Detect if HMAT support is enabled. */
- bool hmat_enabled;
- /* NUMA nodes information */
- NodeInfo nodes[MAX_NODES];
- /* NUMA nodes HMAT Locality Latency and Bandwidth Information */
- HMAT_LB_Info *hmat_lb[HMAT_LB_LEVELS][HMAT_LB_TYPES];
- /* Memory Side Cache Information Structure */
- NumaHmatCacheOptions *hmat_cache[MAX_NODES][HMAT_LB_LEVELS];
- };
- typedef struct NumaState NumaState;
- void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp);
- void parse_numa_opts(MachineState *ms);
- void parse_numa_hmat_lb(NumaState *numa_state, NumaHmatLBOptions *node,
- Error **errp);
- void parse_numa_hmat_cache(MachineState *ms, NumaHmatCacheOptions *node,
- Error **errp);
- void numa_complete_configuration(MachineState *ms);
- void query_numa_node_mem(NumaNodeMem node_mem[], MachineState *ms);
- extern QemuOptsList qemu_numa_opts;
- void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev,
- Error **errp);
- bool numa_uses_legacy_mem(void);
- #endif
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