diff --git a/misc/acrn-config/board_config/acpi_platform_h.py b/misc/acrn-config/board_config/acpi_platform_h.py
index 6a087acd4..7c5af2d98 100644
--- a/misc/acrn-config/board_config/acpi_platform_h.py
+++ b/misc/acrn-config/board_config/acpi_platform_h.py
@@ -91,6 +91,11 @@ def multi_info_parser(config, default_platform, msg_s, msg_e):
     multi_lines = board_cfg_lib.get_info(board_cfg_lib.BOARD_INFO_FILE, msg_s, msg_e)
 
     for s_line in multi_lines:
+        # parse the commend line
+        if '/*' in s_line:
+            print("{}".format(s_line), file=config)
+            continue
+
         if s_line.split()[1] in write_direct:
             if "PM1A_CNT" in s_line.split()[1] and int(s_line.split()[2].strip('UL'), 16) == 0:
                 pm_ac_sz.pm1a_cnt_ac_sz = False
diff --git a/misc/acrn-config/target/acpi.py b/misc/acrn-config/target/acpi.py
index 2bffce669..60be0ba30 100644
--- a/misc/acrn-config/target/acpi.py
+++ b/misc/acrn-config/target/acpi.py
@@ -343,6 +343,13 @@ def decode_sx_pkg(pkg_len, f_node):
     return (pkg_val_pm1a, pkg_val_pm1b, pkg_val_resv, need_break)
 
 
+def set_default_sx_value(sx_name, config):
+    print("\t/* {} is not supported by BIOS */".format(sx_name), file=config)
+    print("\t#define {}_PKG_VAL_PM1A         0x0U".format(sx_name), file=config)
+    print("\t#define {}_PKG_VAL_PM1B         0x0U".format(sx_name), file=config)
+    print("\t#define {}_PKG_RESERVED         0x0U".format(sx_name), file=config)
+
+
 def read_pm_sdata(sysnode, sx_name, config):
     """This will read pm Sx state of power
     :param sysnode: the system node of Sx power state, like:/sys/firmware/acpi/tables/DSDT
@@ -358,6 +365,14 @@ def read_pm_sdata(sysnode, sx_name, config):
 
                 (need_break, need_continue, pkg_len) = read_sx_locate(sx_name, f_node)
                 if need_break:
+                    # BIOS dose not support for SX, set it to default value
+                    s_name = ''
+                    if 'S3' in sx_name:
+                        s_name = 'S3'
+                    else:
+                        s_name = 'S5'
+
+                    set_default_sx_value(s_name, config)
                     break
                 if need_continue:
                     continue