cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

numa.h (3179B)

      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
     17/* the value of AcpiHmatLBInfo flags */
     18enum {
     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 */
     27enum {
     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
     39struct 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
     49struct NumaNodeMem {
     50    uint64_t node_mem;
     51    uint64_t node_plugged_mem;
     52};
     53
     54struct HMAT_LB_Data {
     55    uint8_t     initiator;
     56    uint8_t     target;
     57    uint64_t    data;
     58};
     59typedef struct HMAT_LB_Data HMAT_LB_Data;
     60
     61struct 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};
     77typedef struct HMAT_LB_Info HMAT_LB_Info;
     78
     79struct 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};
     98typedef struct NumaState NumaState;
     99
    100void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp);
    101void parse_numa_opts(MachineState *ms);
    102void parse_numa_hmat_lb(NumaState *numa_state, NumaHmatLBOptions *node,
    103                        Error **errp);
    104void parse_numa_hmat_cache(MachineState *ms, NumaHmatCacheOptions *node,
    105                           Error **errp);
    106void numa_complete_configuration(MachineState *ms);
    107void query_numa_node_mem(NumaNodeMem node_mem[], MachineState *ms);
    108extern QemuOptsList qemu_numa_opts;
    109void numa_cpu_pre_plug(const struct CPUArchId *slot, DeviceState *dev,
    110                       Error **errp);
    111bool numa_uses_legacy_mem(void);
    112
    113#endif