lscpu command added as a function

Added lscpu command to get values of core, physical sockets, physical
chips and chips, this can be extended to get other values related to
lscpu.

Signed-off-by: Krishan Gopal Saraswat <[email protected]>

avocado/utils/cpu.py

@@ -27,7 +27,7 @@
 import re
 import warnings
 
-from avocado.utils import genio
+from avocado.utils import genio, process
 
 #: Map vendor's name with expected string in /proc/cpuinfo.
 VENDORS_MAP = {
@@ -550,6 +550,31 @@ def wrap(*args, **kwargs):
     return wrap
 
 
+def lscpu():
+    """
+    Get Cores per socket, Physical sockets and Physical chips
+    by executing 'lscpu' command.
+
+    :rtype: `dict_obj` with the following details
+    :cores per socket:
+    :physical sockets:
+    :physical chips:
+    :chips: physical sockets * physical chips
+    """
+    output = process.run("lscpu")
+    res = {}
+    for line in output.stdout.decode("utf-8").split("\n"):
+        if "Core(s) per socket:" in line:
+            res["cores"] = int(line.split(":")[1].strip())
+        if "Physical sockets:" in line:
+            res["physical_sockets"] = int(line.split(":")[1].strip())
+        if "Physical chips:" in line:
+            res["physical_chips"] = int(line.split(":")[1].strip())
+    if "physical_sockets" in res and "physical_chips" in res:
+        res["chips"] = res["physical_sockets"] * res["physical_chips"]
+    return res
+
+
 total_cpus_count = _deprecated(total_count, "total_cpus_count")
 _get_cpu_info = _deprecated(_get_info, "_get_cpu_info")
 _get_cpu_status = _deprecated(_get_status, "_get_cpu_status")