diff --git a/misc/acrn-config/acpi_gen/acpi_const.py b/misc/acrn-config/acpi_gen/acpi_const.py
index fd51c8f4f..4bd80edcf 100644
--- a/misc/acrn-config/acpi_gen/acpi_const.py
+++ b/misc/acrn-config/acpi_gen/acpi_const.py
@@ -21,10 +21,10 @@ ACPI_BASE = 0x7ff00000
 
 ACPI_RSDP_ADDR_OFFSET = 0x0         # (36 bytes fixed)
 ACPI_XSDT_ADDR_OFFSET = 0x80        # (36 bytes + 8*7 table addrs)
-ACPI_FADT_ADDR_OFFSET = 0x100       # (244 bytes)
-ACPI_DSDT_ADDR_OFFSET = 0x200       # (variable)
-ACPI_MCFG_ADDR_OFFSET = 0x400       # (60 bytes)
-ACPI_MADT_ADDR_OFFSET = 0x440       # (depends on #CPUs)
+ACPI_FADT_ADDR_OFFSET = 0x100       # (268 bytes)
+ACPI_DSDT_ADDR_OFFSET = 0x240       # (variable)
+ACPI_MCFG_ADDR_OFFSET = 0x440       # (60 bytes)
+ACPI_MADT_ADDR_OFFSET = 0x480       # (depends on #CPUs)
 ACPI_PTCT_ADDR_OFFSET = 0xF00
 ACPI_TPM2_ADDR_OFFSET = 0x1100      # (52 bytes)
 
@@ -38,10 +38,6 @@ ACPI_DSDT_ADDR = (ACPI_BASE + ACPI_DSDT_ADDR_OFFSET)
 ACPI_PTCT_ADDR = (ACPI_BASE + ACPI_PTCT_ADDR_OFFSET)
 ACPI_FACS_ADDR = 0x0
 
-PM1A_EVN_LEN = 0x4
-PM1A_CNT_LEN = 0x2
-FADT_FLAGS = 0x00001125
-
 VIRT_PCI_MMCFG_BASE = 0xE0000000
 
 ACPI_MADT_TYPE_IOAPIC = 1
diff --git a/misc/acrn-config/acpi_gen/asl_gen.py b/misc/acrn-config/acpi_gen/asl_gen.py
index 4ad665ef5..313835c27 100644
--- a/misc/acrn-config/acpi_gen/asl_gen.py
+++ b/misc/acrn-config/acpi_gen/asl_gen.py
@@ -9,6 +9,7 @@ import os, re, argparse, shutil
 import xml.etree.ElementTree as ElementTree
 from acpi_const import *
 import board_cfg_lib
+import collections
 
 def calculate_checksum8():
     '''
@@ -84,24 +85,6 @@ def gen_fadt(dest_vm_acpi_path, board_root):
     fadt_asl = 'facp.asl'
     p_facs_addr = r'FACS Address : ([0-9a-fA-F]{8})'
     p_dsdt_addr = r'DSDT Address : ([0-9a-fA-F]{8})$'
-    p_pm1a_event_block_addr = r'PM1A Event Block Address : (\d+)'
-    p_pm1a_control_block_addr = r'PM1A Control Block Address : (\d+)'
-    p_pm1_event_length = r'PM1 Event Block Length : (\d+)'
-    p_pm1_control_length = r'PM1 Control Block Length : (\d+)'
-    p_flasg = r'      Flags (decoded below) : (\d+)'
-
-    PM1A_EVT_ADDRESS = 0x0
-    PM1A_CNT_ADDRESS = 0x0
-    e_pm_info = board_root.find('PM_INFO')
-    for line in e_pm_info.text.split('\n'):
-        s = re.search(r'#define PM1A_EVT_ADDRESS        (0x\d+)UL', line)
-        if s is not None and len(s.groups()) > 0:
-            PM1A_EVT_ADDRESS = int(s.groups()[0], 16)
-            continue
-        s = re.search(r'#define PM1A_CNT_ADDRESS        (0x\d+)UL', line)
-        if s is not None and len(s.groups()) > 0:
-            PM1A_CNT_ADDRESS = int(s.groups()[0], 16)
-            continue
 
     with open(os.path.join(dest_vm_acpi_path, fadt_asl), 'w') as dest:
         lines = []
@@ -111,16 +94,6 @@ def gen_fadt(dest_vm_acpi_path, board_root):
                     lines.append(re.sub(p_facs_addr, 'FACS Address : {0:08X}'.format(ACPI_FACS_ADDR), line))
                 elif re.search(p_dsdt_addr, line):
                     lines.append(re.sub(p_dsdt_addr, 'DSDT Address : {0:08X}'.format(ACPI_DSDT_ADDR), line))
-                elif re.search(p_pm1a_event_block_addr, line):
-                    lines.append(re.sub(p_pm1a_event_block_addr, 'PM1A Event Block Address : {0:08X}'.format(PM1A_EVT_ADDRESS), line))
-                elif re.search(p_pm1a_control_block_addr, line):
-                    lines.append(re.sub(p_pm1a_control_block_addr, 'PM1A Control Block Address : {0:08X}'.format(PM1A_CNT_ADDRESS), line))
-                elif re.search(p_pm1_event_length, line):
-                    lines.append(re.sub(p_pm1_event_length, 'PM1 Event Block Length : {0:02X}'.format(PM1A_EVN_LEN), line))
-                elif re.search(p_pm1_control_length, line):
-                    lines.append(re.sub(p_pm1_control_length, 'PM1 Control Block Length : {0:02X}'.format(PM1A_CNT_LEN), line))
-                elif re.search(p_flasg, line):
-                    lines.append(re.sub(p_flasg, 'Flags (decoded below) : {0:08X}'.format(FADT_FLAGS), line))
                 else:
                     lines.append(line)
         dest.writelines(lines)
@@ -438,8 +411,8 @@ def main(args):
             if config.startswith('VM') and os.path.isdir(os.path.join(DEST_ACPI_PATH, config)):
                 shutil.rmtree(os.path.join(DEST_ACPI_PATH, config))
 
-    dict_passthru_devices = {}
-    dict_vcpu_list = {}
+    dict_passthru_devices = collections.OrderedDict()
+    dict_vcpu_list = collections.OrderedDict()
     for vm in scenario_root.findall('vm'):
         vm_id = vm.attrib['id']
         vm_type_node = vm.find('vm_type')
diff --git a/misc/vm_configs/acpi/template/dsdt.asl b/misc/vm_configs/acpi/template/dsdt.asl
index af968e71a..f72e7567e 100644
--- a/misc/vm_configs/acpi/template/dsdt.asl
+++ b/misc/vm_configs/acpi/template/dsdt.asl
@@ -16,6 +16,10 @@
  */
 DefinitionBlock ("", "DSDT", 3, "ACRN  ", "ACRNDSDT", 0x00000001)
 {
-
+  Name (_S5, Package ()
+  {
+      0x05,
+      Zero,
+  })
 }
 
diff --git a/misc/vm_configs/acpi/template/facp.asl b/misc/vm_configs/acpi/template/facp.asl
index 0331c4666..45e151845 100644
--- a/misc/vm_configs/acpi/template/facp.asl
+++ b/misc/vm_configs/acpi/template/facp.asl
@@ -9,9 +9,9 @@
  */
 
 [0004]                        Signature : "FACP"    [Fixed ACPI Description Table (FADT)]
-[0004]                     Table Length : 000000F4
-[0001]                         Revision : 03
-[0001]                         Checksum : 28
+[0004]                     Table Length : 0000010C
+[0001]                         Revision : 05
+[0001]                         Checksum : 00
 [0006]                           Oem ID : "ACRN  "
 [0008]                     Oem Table ID : "ACRNFADT"
 [0004]                     Oem Revision : 00000001
@@ -28,16 +28,16 @@
 [0001]               ACPI Disable Value : 00
 [0001]                   S4BIOS Command : 00
 [0001]                  P-State Control : 00
-[0004]         PM1A Event Block Address : 00001800
+[0004]         PM1A Event Block Address : 00000000
 [0004]         PM1B Event Block Address : 00000000
-[0004]       PM1A Control Block Address : 00001804
+[0004]       PM1A Control Block Address : 00000000
 [0004]       PM1B Control Block Address : 00000000
 [0004]        PM2 Control Block Address : 00000000
 [0004]           PM Timer Block Address : 00000000
 [0004]               GPE0 Block Address : 00000000
 [0004]               GPE1 Block Address : 00000000
-[0001]           PM1 Event Block Length : 04
-[0001]         PM1 Control Block Length : 02
+[0001]           PM1 Event Block Length : 00
+[0001]         PM1 Control Block Length : 00
 [0001]         PM2 Control Block Length : 00
 [0001]            PM Timer Block Length : 00
 [0001]                GPE0 Block Length : 00
@@ -82,7 +82,7 @@
            Remote Power-on capable (V4) : 0
             Use APIC Cluster Model (V4) : 0
 Use APIC Physical Destination Mode (V4) : 0
-                  Hardware Reduced (V5) : 0
+                  Hardware Reduced (V5) : 1
                  Low Power S0 Idle (V5) : 0
 
 [0012]                   Reset Register : [Generic Address Structure]
@@ -155,3 +155,16 @@ Use APIC Physical Destination Mode (V4) : 0
 [0001]                       Bit Offset : 00
 [0001]             Encoded Access Width : 00 [Undefined/Legacy]
 [0008]                          Address : 0000000000000000
+[0012]           Sleep Control Register : [Generic Address Structure]
+[0001]                         Space ID : 01 [SystemIO]
+[0001]                        Bit Width : 08
+[0001]                       Bit Offset : 00
+[0001]             Encoded Access Width : 01 [Byte Access:8]
+[0008]                          Address : 0000000000000400
+
+[0012]            Sleep Status Register : [Generic Address Structure]
+[0001]                         Space ID : 01 [SystemIO]
+[0001]                        Bit Width : 08
+[0001]                       Bit Offset : 00
+[0001]             Encoded Access Width : 01 [Byte Access:8]
+[0008]                          Address : 0000000000000401