1 files changed, 53 insertions, 0 deletions

diff --git a/include/sysemu/numa.h b/include/sysemu/numa.h
index 788cbec7a2..70f93c83d7 100644
--- a/include/sysemu/numa.h
+++ b/include/sysemu/numa.h
@@ -14,11 +14,34 @@ struct CPUArchId;
 #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];
 };
@@ -28,6 +51,31 @@ struct NumaNodeMem {
     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;
@@ -40,11 +88,16 @@ struct NumaState {
 
     /* 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];
 };
 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 numa_complete_configuration(MachineState *ms);
 void query_numa_node_mem(NumaNodeMem node_mem[], MachineState *ms);
 extern QemuOptsList qemu_numa_opts;