hw/cpu: Update the comments of nr_cores and nr_dies

In the nr_threads' comment, specify it represents the
number of threads in the "core" to avoid confusion.

Also add comment for nr_dies in CPUX86State.

Signed-off-by: Zhao Liu <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Tested-by: Babu Moger <[email protected]>
Tested-by: Yongwei Ma <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>

Author: trueptolemy

include/hw/core/cpu.h

@@ -408,7 +408,7 @@ struct qemu_work_item;
  *   See TranslationBlock::TCG CF_CLUSTER_MASK.
  * @tcg_cflags: Pre-computed cflags for this cpu.
  * @nr_cores: Number of cores within this CPU package.
- * @nr_threads: Number of threads within this CPU.
+ * @nr_threads: Number of threads within this CPU core.
  * @running: #true if CPU is currently running (lockless).
  * @has_waiter: #true if a CPU is currently waiting for the cpu_exec_end;
  * valid under cpu_list_lock.

target/i386/cpu.h

@@ -1882,6 +1882,7 @@ typedef struct CPUArchState {
 
     TPRAccess tpr_access_type;
 
+    /* Number of dies within this CPU package. */
     unsigned nr_dies;
 } CPUX86State;