diff --git a/src/soc/intel/common/acpi/iost.asl b/src/soc/intel/common/acpi/iost.asl
new file mode 100644
index 0000000000..51d934ca7a
--- /dev/null
+++ b/src/soc/intel/common/acpi/iost.asl
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Device: Intel's IO Self-Testing Software (IOST)
+ * NOTE: The IOSE Name object is used to enable IOST. It is set to 0 by default,
+ * and its value can be updated in the SSDT.
+ */
+Device (IOST)
+{
+	//
+	// Intel IO Self Testing Device
+	//
+	Name (_UID, "IOST")
+	Name (_HID, "IOS0001")
+	Name (IVER, 0x00010000)
+	Name (IOSE, 0x00)
+	Method (_STA, 0, NotSerialized)
+	{
+		If (IOSE > Zero) {
+			Return (0xf)
+		}
+		Return (Zero)
+	}
+
+	/*
+	 * _DSM Device Specific Method
+	 *
+	 * Arg0: UUID : 893f00a6-660c-494e-bcfd-3043f4fb67c0
+	 * Arg1: Integer Revision Level
+	 * Arg2: Integer Function Index (0 = Return Supported Functions)
+	 * Arg3: Package Parameters
+	 */
+	Method (_DSM, 4, Serialized)
+	{
+		If ( (IOSE > Zero) && LEqual (Arg0, ToUUID ("893f00a6-660c-494e-bcfd-3043f4fb67c0")))
+		{
+			If (LEqual (0, ToInteger (Arg1)))
+			{
+				Switch (ToInteger (Arg2))
+				{
+					/* Function 0: returns a buffer containing one bit for each function index, starting with zero.
+					 * Bit 0 indicates whether there is support for any function other than function 0
+					 */
+					Case (0)
+					{
+						Return (Buffer(){0x07})
+					}
+					/* Function 1: P2SB Read
+					 * Package Details
+					 * Idx0 = PortID
+					 * Idx1 = Offset
+					 */
+					Case (1)
+					{
+						Local0 = DeRefOf (Index (Arg3, 0)) /* PordID */
+						Local1 = DeRefOf (Index (Arg3, 1)) /* offset */
+
+						Local3 = PCRR(Local0, Local1)
+						Printf ("[IOST] P2B Read: PortID: %o  Offset: %o read = %o", ToHexString(Local0), ToHexString(Local1), ToHexString(Local3))
+						Return(Local3)
+					}
+					/* Function 2: P2SB Write
+					 * Package Details
+					 * Idx0 = PortID
+					 * Idx1 = Offset
+					 * Idx2 = DataToWrite
+					 */
+					Case (2)
+					{
+						Local0 = DeRefOf (Index (Arg3, 0)) /* PordID */
+						Local1 = DeRefOf (Index (Arg3, 1)) /* offset */
+						Local2 = DeRefOf (Index (Arg3, 2)) /* data to Write */
+						Printf ("[IOST] P2B Write: PortID: %o Offset: %o with %o", ToHexString(Local0), ToHexString(Local1), ToHexString(Local2))
+						PCRW(Local0, Local1, Local2)
+						Return (0x00)
+					}
+				}
+			}
+		}
+		Return (Buffer () {0x00})
+	}
+}