diff --git a/misc/config_tools/data/cfl-k700-i7/hybrid_rt.xml b/misc/config_tools/data/cfl-k700-i7/hybrid_rt.xml
index 33796090d..bae59d133 100644
--- a/misc/config_tools/data/cfl-k700-i7/hybrid_rt.xml
+++ b/misc/config_tools/data/cfl-k700-i7/hybrid_rt.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/cfl-k700-i7/shared.xml b/misc/config_tools/data/cfl-k700-i7/shared.xml
index 93dd813bc..b741663d8 100644
--- a/misc/config_tools/data/cfl-k700-i7/shared.xml
+++ b/misc/config_tools/data/cfl-k700-i7/shared.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/generic_board/generic_code/hybrid/generic_board.config b/misc/config_tools/data/generic_board/generic_code/hybrid/generic_board.config
index 345fc9af2..f082018f7 100644
--- a/misc/config_tools/data/generic_board/generic_code/hybrid/generic_board.config
+++ b/misc/config_tools/data/generic_board/generic_code/hybrid/generic_board.config
@@ -18,7 +18,6 @@ CONFIG_L1D_FLUSH_VMENTRY_ENABLED=n
 CONFIG_MCE_ON_PSC_WORKAROUND_DISABLED=n
 CONFIG_IOMMU_BUS_NUM=0x100
 CONFIG_MAX_IOAPIC_NUM=1
-CONFIG_MAX_IR_ENTRIES=256
 CONFIG_MAX_PCI_DEV_NUM=96
 CONFIG_MAX_IOAPIC_LINES=120
 CONFIG_MAX_PT_IRQ_ENTRIES=256
diff --git a/misc/config_tools/data/generic_board/generic_code/partitioned/generic_board.config b/misc/config_tools/data/generic_board/generic_code/partitioned/generic_board.config
index 91e866e5d..d167866d7 100644
--- a/misc/config_tools/data/generic_board/generic_code/partitioned/generic_board.config
+++ b/misc/config_tools/data/generic_board/generic_code/partitioned/generic_board.config
@@ -18,7 +18,6 @@ CONFIG_L1D_FLUSH_VMENTRY_ENABLED=n
 CONFIG_MCE_ON_PSC_WORKAROUND_DISABLED=n
 CONFIG_IOMMU_BUS_NUM=0x100
 CONFIG_MAX_IOAPIC_NUM=1
-CONFIG_MAX_IR_ENTRIES=256
 CONFIG_MAX_PCI_DEV_NUM=96
 CONFIG_MAX_IOAPIC_LINES=120
 CONFIG_MAX_PT_IRQ_ENTRIES=64
diff --git a/misc/config_tools/data/generic_board/generic_code/shared/generic_board.config b/misc/config_tools/data/generic_board/generic_code/shared/generic_board.config
index 345fc9af2..f082018f7 100644
--- a/misc/config_tools/data/generic_board/generic_code/shared/generic_board.config
+++ b/misc/config_tools/data/generic_board/generic_code/shared/generic_board.config
@@ -18,7 +18,6 @@ CONFIG_L1D_FLUSH_VMENTRY_ENABLED=n
 CONFIG_MCE_ON_PSC_WORKAROUND_DISABLED=n
 CONFIG_IOMMU_BUS_NUM=0x100
 CONFIG_MAX_IOAPIC_NUM=1
-CONFIG_MAX_IR_ENTRIES=256
 CONFIG_MAX_PCI_DEV_NUM=96
 CONFIG_MAX_IOAPIC_LINES=120
 CONFIG_MAX_PT_IRQ_ENTRIES=256
diff --git a/misc/config_tools/data/generic_board/hybrid.xml b/misc/config_tools/data/generic_board/hybrid.xml
index 0ee230630..c9186de62 100644
--- a/misc/config_tools/data/generic_board/hybrid.xml
+++ b/misc/config_tools/data/generic_board/hybrid.xml
@@ -47,7 +47,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -249,4 +248,4 @@
     </communication_vuart>
     <PTM>n</PTM>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/generic_board/hybrid_rt.xml b/misc/config_tools/data/generic_board/hybrid_rt.xml
index 80cf09e01..08936c1e5 100644
--- a/misc/config_tools/data/generic_board/hybrid_rt.xml
+++ b/misc/config_tools/data/generic_board/hybrid_rt.xml
@@ -52,7 +52,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -258,4 +257,4 @@
     </communication_vuart>
     <PTM>n</PTM>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/generic_board/partitioned.xml b/misc/config_tools/data/generic_board/partitioned.xml
index ab44878a3..1f59df904 100644
--- a/misc/config_tools/data/generic_board/partitioned.xml
+++ b/misc/config_tools/data/generic_board/partitioned.xml
@@ -47,7 +47,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -181,4 +180,4 @@
       <TPM2>n</TPM2>
     </mmio_resources>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/generic_board/shared.xml b/misc/config_tools/data/generic_board/shared.xml
index e8d0d7085..1dd398df1 100644
--- a/misc/config_tools/data/generic_board/shared.xml
+++ b/misc/config_tools/data/generic_board/shared.xml
@@ -47,7 +47,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -350,4 +349,4 @@
     </communication_vuart>
     <PTM>n</PTM>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/nuc11tnbi5/hybrid.xml b/misc/config_tools/data/nuc11tnbi5/hybrid.xml
index 59b769d03..dc5de8f4d 100644
--- a/misc/config_tools/data/nuc11tnbi5/hybrid.xml
+++ b/misc/config_tools/data/nuc11tnbi5/hybrid.xml
@@ -47,7 +47,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -249,4 +248,4 @@
     </communication_vuart>
     <PTM>n</PTM>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/nuc11tnbi5/partitioned.xml b/misc/config_tools/data/nuc11tnbi5/partitioned.xml
index 8f27884a8..fffc01f79 100644
--- a/misc/config_tools/data/nuc11tnbi5/partitioned.xml
+++ b/misc/config_tools/data/nuc11tnbi5/partitioned.xml
@@ -47,7 +47,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -181,4 +180,4 @@
       <TPM2>n</TPM2>
     </mmio_resources>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/nuc11tnbi5/shared.xml b/misc/config_tools/data/nuc11tnbi5/shared.xml
index ca1aad25b..6a7482e97 100644
--- a/misc/config_tools/data/nuc11tnbi5/shared.xml
+++ b/misc/config_tools/data/nuc11tnbi5/shared.xml
@@ -47,7 +47,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
@@ -350,4 +349,4 @@
     </communication_vuart>
     <PTM>n</PTM>
   </vm>
-</acrn-config>
\ No newline at end of file
+</acrn-config>
diff --git a/misc/config_tools/data/qemu/sdc.xml b/misc/config_tools/data/qemu/sdc.xml
index ef269c2b7..9a94bec65 100644
--- a/misc/config_tools/data/qemu/sdc.xml
+++ b/misc/config_tools/data/qemu/sdc.xml
@@ -40,7 +40,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/whl-ipc-i5/hybrid.xml b/misc/config_tools/data/whl-ipc-i5/hybrid.xml
index f545b7c94..8a088704e 100644
--- a/misc/config_tools/data/whl-ipc-i5/hybrid.xml
+++ b/misc/config_tools/data/whl-ipc-i5/hybrid.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/whl-ipc-i5/hybrid_rt.xml b/misc/config_tools/data/whl-ipc-i5/hybrid_rt.xml
index ab19bf2ae..b53834f37 100644
--- a/misc/config_tools/data/whl-ipc-i5/hybrid_rt.xml
+++ b/misc/config_tools/data/whl-ipc-i5/hybrid_rt.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/whl-ipc-i5/partitioned.xml b/misc/config_tools/data/whl-ipc-i5/partitioned.xml
index 1d1921ea9..f99ca2dd8 100644
--- a/misc/config_tools/data/whl-ipc-i5/partitioned.xml
+++ b/misc/config_tools/data/whl-ipc-i5/partitioned.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/whl-ipc-i5/sdc.xml b/misc/config_tools/data/whl-ipc-i5/sdc.xml
index 71c6ec485..87acd83c4 100644
--- a/misc/config_tools/data/whl-ipc-i5/sdc.xml
+++ b/misc/config_tools/data/whl-ipc-i5/sdc.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/data/whl-ipc-i5/shared.xml b/misc/config_tools/data/whl-ipc-i5/shared.xml
index 3cd3c1b89..d12bbad81 100644
--- a/misc/config_tools/data/whl-ipc-i5/shared.xml
+++ b/misc/config_tools/data/whl-ipc-i5/shared.xml
@@ -39,7 +39,6 @@
     <CAPACITIES>
       <MAX_VM_NUM>16</MAX_VM_NUM>
       <IOMMU_BUS_NUM>0x100</IOMMU_BUS_NUM>
-      <MAX_IR_ENTRIES>256</MAX_IR_ENTRIES>
       <MAX_IOAPIC_NUM>1</MAX_IOAPIC_NUM>
       <MAX_PCI_DEV_NUM>96</MAX_PCI_DEV_NUM>
       <MAX_IOAPIC_LINES>120</MAX_IOAPIC_LINES>
diff --git a/misc/config_tools/hv_config/board_defconfig.py b/misc/config_tools/hv_config/board_defconfig.py
index f4200e5ae..6b73bcd22 100644
--- a/misc/config_tools/hv_config/board_defconfig.py
+++ b/misc/config_tools/hv_config/board_defconfig.py
@@ -161,7 +161,6 @@ def get_capacities(hv_info, config):
 
     print("CONFIG_IOMMU_BUS_NUM={}".format(hv_info.cap.iommu_bus_num), file=config)
     print("CONFIG_MAX_IOAPIC_NUM={}".format(hv_info.cap.max_ioapic_num), file=config)
-    print("CONFIG_MAX_IR_ENTRIES={}".format(hv_info.cap.max_ir_entries), file=config)
     print("CONFIG_MAX_PCI_DEV_NUM={}".format(hv_info.cap.max_pci_dev_num), file=config)
     print("CONFIG_MAX_IOAPIC_LINES={}".format(hv_info.cap.max_ioapic_lines), file=config)
     print("CONFIG_MAX_PT_IRQ_ENTRIES={}".format(hv_info.cap.max_pt_irq_entries), file=config)
diff --git a/misc/config_tools/hv_config/hv_item.py b/misc/config_tools/hv_config/hv_item.py
index 59ba18243..9c48498d1 100644
--- a/misc/config_tools/hv_config/hv_item.py
+++ b/misc/config_tools/hv_config/hv_item.py
@@ -55,7 +55,6 @@ class CapHv:
         self.max_pt_irq_entries = 0
         self.max_ioapic_num = 0
         self.max_ioapic_lines = 0
-        self.max_ir_entries = 0
         self.iommu_bus_num = 0
         self.max_pci_dev_num = 0
         self.max_msix_table_num = 0
@@ -65,7 +64,6 @@ class CapHv:
         self.max_pt_irq_entries = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "MAX_PT_IRQ_ENTRIES")
         self.max_ioapic_num = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "MAX_IOAPIC_NUM")
         self.max_ioapic_lines = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "MAX_IOAPIC_LINES")
-        self.max_ir_entries = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "MAX_IR_ENTRIES")
         self.iommu_bus_num = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "IOMMU_BUS_NUM")
         self.max_pci_dev_num = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "MAX_PCI_DEV_NUM")
         self.max_msix_table_num = common.get_hv_item_tag(self.hv_file, "CAPACITIES", "MAX_MSIX_TABLE_NUM")
@@ -75,7 +73,6 @@ class CapHv:
         hv_cfg_lib.hv_range_check(self.max_pt_irq_entries, "CAPACITIES", "MAX_PT_IRQ_ENTRIES", hv_cfg_lib.RANGE_DB['PT_IRQ_ENTRIES'])
         hv_cfg_lib.hv_range_check(self.max_ioapic_num, "CAPACITIES", "MAX_IOAPIC_NUM", hv_cfg_lib.RANGE_DB['IOAPIC_NUM'])
         hv_cfg_lib.hv_range_check(self.max_ioapic_lines, "CAPACITIES", "MAX_IOAPIC_LINES", hv_cfg_lib.RANGE_DB['IOAPIC_LINES'])
-        hv_cfg_lib.ir_entries_check(self.max_ir_entries, "CAPACITIES", "MAX_IR_ENTRIES")
         hv_cfg_lib.hv_size_check(self.iommu_bus_num, "CAPACITIES", "IOMMU_BUS_NUM")
         hv_cfg_lib.hv_range_check(self.max_pci_dev_num, "CAPACITIES", "MAX_PCI_DEV_NUM", hv_cfg_lib.RANGE_DB['PCI_DEV_NUM'])
         hv_cfg_lib.max_msix_table_num_check(self.max_msix_table_num, "CAPACITIES", "MAX_MSIX_TABLE_NUM")
diff --git a/misc/config_tools/schema/config.xsd b/misc/config_tools/schema/config.xsd
index 6cae7d0ee..813708134 100644
--- a/misc/config_tools/schema/config.xsd
+++ b/misc/config_tools/schema/config.xsd
@@ -227,11 +227,6 @@ maximum supported resource.</xs:documentation>
 initialization.</xs:documentation>
       </xs:annotation>
     </xs:element>
-    <xs:element name="MAX_IR_ENTRIES" type="xs:integer" default="256">
-      <xs:annotation>
-        <xs:documentation>Maximum number of Interrupt Remapping Entries.</xs:documentation>
-      </xs:annotation>
-    </xs:element>
     <xs:element name="MAX_IOAPIC_NUM" default="1">
       <xs:annotation>
         <xs:documentation>Maximum number of IOAPICs.</xs:documentation>
diff --git a/misc/config_tools/xforms/config_common.xsl b/misc/config_tools/xforms/config_common.xsl
index 92c4fa357..e4765c28e 100644
--- a/misc/config_tools/xforms/config_common.xsl
+++ b/misc/config_tools/xforms/config_common.xsl
@@ -163,10 +163,6 @@
       <xsl:with-param name="key" select="'MAX_IOAPIC_NUM'" />
     </xsl:call-template>
 
-    <xsl:call-template name="integer-by-key">
-      <xsl:with-param name="key" select="'MAX_IR_ENTRIES'" />
-    </xsl:call-template>
-
     <xsl:call-template name="integer-by-key">
       <xsl:with-param name="key" select="'MAX_PCI_DEV_NUM'" />
     </xsl:call-template>