acrn-config: by-pass acpi_idle/acpi_cpufreq for parsing target board

Current board parse logic would be broken if acpi_idle/acpi-cpufreq
driver is not loaded by native kernel.
This patch would just leave a warning to user and continue to parse
other information in this case.

Tracked-On: #4082
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>

misc/acrn-config/board_config/board_c.py

@@ -112,6 +112,26 @@ def gen_cat(config):
     return err_dic
 
 
+def gen_single_data(data_lines, domain_str, config):
+    line_i = 0
+    data_statues = True
+    data_len = len(data_lines)
+    for data_l in data_lines:
+        if line_i == 0:
+            if "not available" in data_l:
+                print(data_l.strip(), file=config)
+                print("static const struct cpu_{}x_data board_cpu_{}x[0];".format(domain_str, domain_str), file=config)
+                print("", file=config)
+                data_statues = False
+                break
+            else:
+                print("static const struct cpu_{}x_data board_cpu_{}x[{}] = {{".format(domain_str, domain_str, data_len), file=config)
+        print("\t{0}".format(data_l.strip()), file=config)
+        line_i += 1
+    if data_statues:
+        print("};\n", file=config)
+
+
 def gen_px_cx(config):
     """
     Get Px/Cx and store them to board.c
@@ -122,18 +142,8 @@ def gen_px_cx(config):
     cx_lines = board_cfg_lib.get_info(board_cfg_lib.BOARD_INFO_FILE, "<CX_INFO>", "</CX_INFO>")
     px_lines = board_cfg_lib.get_info(board_cfg_lib.BOARD_INFO_FILE, "<PX_INFO>", "</PX_INFO>")
 
-    cx_len = len(cx_lines)
-    px_len = len(px_lines)
-    #print("#ifdef CONFIG_CPU_POWER_STATES_SUPPORT", file=config)
-    print("static const struct cpu_cx_data board_cpu_cx[%s] = {"%str(cx_len), file=config)
-    for cx_l in cx_lines:
-        print("\t{0}".format(cx_l.strip()), file=config)
-    print("};\n", file=config)
-
-    print("static const struct cpu_px_data board_cpu_px[%s] = {"%str(px_len), file=config)
-    for px_l in px_lines:
-        print("\t{0}".format(px_l.strip()), file=config)
-    print("};\n", file=config)
+    gen_single_data(cx_lines, 'c', config)
+    gen_single_data(px_lines, 'p', config)
 
     for brand_line in cpu_brand_lines:
         cpu_brand = brand_line
@@ -143,7 +153,6 @@ def gen_px_cx(config):
     print("\t{(uint8_t)ARRAY_SIZE(board_cpu_px), board_cpu_px,", file=config)
     print("\t(uint8_t)ARRAY_SIZE(board_cpu_cx), board_cpu_cx}", file=config)
     print("};", file=config)
-    #print("#endif", file=config)
 
 
 def generate_file(config):

misc/acrn-config/target/acpi.py

@@ -433,13 +433,15 @@ def store_cx_data(sysnode1, sysnode2, config):
         idle_driver = acpi_idle.read(32)
 
         if idle_driver.find("acpi_idle") == -1:
+            parser_lib.print_yel("The Cx data for ACRN relies on " +\
+                 "acpi_idle driver but it is not found, ", warn=True, end=False)
             if idle_driver.find("intel_idle") == 0:
-                parser_lib.print_red("The tool need to run with acpi_idle driver, " +
-                                     "please add intel_idle.max_cstate=0 in kernel " +
-                                     "cmdline to fall back to acpi_idle driver", err=True)
+                print("please add idle=nomwait in kernel " +\
+                    "cmdline to fall back to acpi_idle driver")
             else:
-                parser_lib.print_red("acpi_idle driver is not found.", err=True)
-            sys.exit(1)
+                parser_lib.print_yel("please make sure ACPI Cstate is enabled in BIOS.", warn=True)
+            print("\t/* Cx data is not available */", file=config)
+            return
 
     files = os.listdir(sysnode2)
     for d_path in files:
@@ -499,13 +501,15 @@ def store_px_data(sysnode, config):
     with open(sysnode+'cpu0/cpufreq/scaling_driver', 'r') as f_node:
         freq_driver = f_node.read()
         if freq_driver.find("acpi-cpufreq") == -1:
+            parser_lib.print_yel("The Px data for ACRN relies on " +\
+                 "acpi-cpufreq driver but it is not found, ", warn=True, end=False)
             if freq_driver.find("intel_pstate") == 0:
-                parser_lib.print_red("The tool need to run with acpi_cpufreq driver, " +
-                                     "please add intel_pstate=disable in kernel cmdline " +
-                                     "to fall back to acpi-cpufreq driver.", err=True)
+                print("please add intel_pstate=disable in kernel " +\
+                    "cmdline to fall back to acpi-cpufreq driver")
             else:
-                parser_lib.print_red("acpi-cpufreq driver is not found.", err=True)
-            sys.exit(1)
+                parser_lib.print_yel("please make sure ACPI Pstate is enabled in BIOS.", warn=True)
+            print("\t/* Px data is not available */", file=config)
+            return
 
     try:
         with open(sysnode+'cpufreq/boost', 'r') as f_node:

misc/acrn-config/target/parser_lib.py

@@ -16,15 +16,22 @@ def check_dmi():
     return os.path.exists("/sys/firmware/dmi")
 
 
-def print_yel(msg, warn=False):
+def print_yel(msg, warn=False, end=True):
     """Output the message with the color of yellow
     :param msg: the stings which will be output to STDOUT
     :param warn: the condition if needs to be output the color of yellow with 'Warning'
+    :param end: The flag of it needs to combine with the next line for stdout
     """
     if warn:
-        print("\033[1;33mWarning\033[0m:"+msg)
+        if end:
+            print("\033[1;33mWarning\033[0m:"+msg)
+        else:
+            print("\033[1;33mWarning\033[0m:"+msg, end="")
     else:
-        print("\033[1;33m{0}\033[0m".format(msg))
+        if end:
+            print("\033[1;33m{}\033[0m".format(msg))
+        else:
+            print("\033[1;33m{}\033[0m".format(msg), end="")
 
 
 def print_red(msg, err=False):