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#ifndef SYSEMU_NUMA_H
#define SYSEMU_NUMA_H
#include "qemu/bitmap.h"
#include "qapi/qapi-types-machine.h"
#include "exec/cpu-common.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
struct NodeInfo {
uint64_t node_mem;
struct HostMemoryBackend *node_memdev;
bool present;
bool has_cpu;
uint8_t lb_info_provided;
uint16_t initiator;
uint8_t distance[MAX_NODES];
};
struct NumaNodeMem {
uint64_t node_mem;
uint64_t node_plugged_mem;
};
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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