diff --git a/security/rkp/aidl/android/hardware/security/keymint/DeviceInfo.aidl b/security/rkp/aidl/android/hardware/security/keymint/DeviceInfo.aidl
index f0af619..bd27882 100644
--- a/security/rkp/aidl/android/hardware/security/keymint/DeviceInfo.aidl
+++ b/security/rkp/aidl/android/hardware/security/keymint/DeviceInfo.aidl
@@ -17,11 +17,11 @@
 package android.hardware.security.keymint;
 
 /**
- * DeviceInfo contains information about the device that's fed in as AAD in the signature of the
- * device private key over the MAC key used for the bundle of public keys. These values are intended
- * to be checked by the server to verify that the certificate signing request crafted by
- * an IRemotelyProvisionedComponent HAL instance is coming from the expected device based
- * on values initially uploaded during device manufacture in the factory.
+ * DeviceInfo contains information about the device that's signed by the
+ * IRemotelyProvisionedComponent HAL. These values are intended to be checked by the server to
+ * verify that the certificate signing request crafted by an IRemotelyProvisionedComponent HAL
+ * instance is coming from the expected device based on values initially uploaded during device
+ * manufacture in the factory.
  * @hide
  */
 @VintfStability
@@ -31,6 +31,11 @@
      * canonicalized according to the specification in RFC 7049. The ordering presented here is
      * non-canonical to group similar entries semantically.
      *
+     * The DeviceInfo has changed across versions 1, 2, and 3 of the HAL. All versions of the
+     * DeviceInfo CDDL are described as follows. Please refer to the CDDL structure version
+     * that corresponds to the HAL version you are working with:
+     *
+     * Version 3, introduced in Android 14:
      *     DeviceInfo = {
      *         "brand" : tstr,
      *         "manufacturer" : tstr,
@@ -43,13 +48,63 @@
      *         ? "os_version" : tstr,                         ; Same as
      *                                                        ; android.os.Build.VERSION.release
      *                                                        ; Not optional for TEE.
-     *         "system_patch_level" : uint,                   ; YYYYMMDD
+     *         "system_patch_level" : uint,                   ; YYYYMM
      *         "boot_patch_level" : uint,                     ; YYYYMMDD
      *         "vendor_patch_level" : uint,                   ; YYYYMMDD
      *         "security_level" : "tee" / "strongbox",
      *         "fused": 1 / 0,  ; 1 if secure boot is enforced for the processor that the IRPC
      *                          ; implementation is contained in. 0 otherwise.
      *     }
+     *
+     * ---------------------------------------------------------------------------------------------
+     *
+     * Version 2, introduced in Android 13:
+     *     DeviceInfo = {
+     *         "brand" : tstr,
+     *         "manufacturer" : tstr,
+     *         "product" : tstr,
+     *         "model" : tstr,
+     *         "device" : tstr,
+     *         "vb_state" : "green" / "yellow" / "orange",    ; Taken from the AVB values
+     *         "bootloader_state" : "locked" / "unlocked",    ; Taken from the AVB values
+     *         "vbmeta_digest": bstr,                         ; Taken from the AVB values
+     *         ? "os_version" : tstr,                         ; Same as
+     *                                                        ; android.os.Build.VERSION.release
+     *                                                        ; Not optional for TEE.
+     *         "system_patch_level" : uint,                   ; YYYYMM
+     *         "boot_patch_level" : uint,                     ; YYYYMMDD
+     *         "vendor_patch_level" : uint,                   ; YYYYMMDD
+     *         "version" : 2,                                 ; The CDDL schema version.
+     *         "security_level" : "tee" / "strongbox",
+     *         "fused": 1 / 0,  ; 1 if secure boot is enforced for the processor that the IRPC
+     *                          ; implementation is contained in. 0 otherwise.
+     *
+     * ---------------------------------------------------------------------------------------------
+     *
+     * Version 1, introduced in Android 12:
+     *     DeviceInfo = {
+     *         ? "brand" : tstr,
+     *         ? "manufacturer" : tstr,
+     *         ? "product" : tstr,
+     *         ? "model" : tstr,
+     *         ? "board" : tstr,
+     *         ? "vb_state" : "green" / "yellow" / "orange",  ; Taken from the AVB values
+     *         ? "bootloader_state" : "locked" / "unlocked",  ; Taken from the AVB values
+     *         ? "vbmeta_digest": bstr,                       ; Taken from the AVB values
+     *         ? "os_version" : tstr,                         ; Same as
+     *                                                        ; android.os.Build.VERSION.release
+     *         ? "system_patch_level" : uint,                 ; YYYYMM
+     *         ? "boot_patch_level" : uint,                   ; YYYYMMDD
+     *         ? "vendor_patch_level" : uint,                 ; YYYYMMDD
+     *         "version" : 1,                                 ; The CDDL schema version.
+     *         "security_level" : "tee" / "strongbox"
+     *         "att_id_state": "locked" / "open",  ; Attestation IDs State. If "locked", this
+     *                                             ; indicates a device's attestable IDs are
+     *                                             ; factory-locked and immutable. If "open",
+     *                                             ; this indicates the device is still in a
+     *                                             ; provisionable state and the attestable IDs
+     *                                             ; are not yet frozen.
+     *     }
      */
     byte[] deviceInfo;
 }