misc.py: Resolve T1 communication on 15.0 Beta 4

Due to lack of kernel version incrementing, beta 1 through 3 will not function with this build (as we are unable to limit kext injection).

Note searchpartyd will crash on beta 4, full support not resolved yet.

opencore_legacy_patcher/constants.py

@@ -74,6 +74,7 @@ class Constants:
         self.t1_corecrypto_version: str = "1.0.1"  #  corecrypto    (13.6 - T1 support)
         self.apple_spi_version:     str = "1.0.0"  #  AppleHSSPISupport   (14.4 Beta 1)
         self.apple_spi_hid_version: str = "1.0.0"  #  AppleHSSPIHIDDriver (14.4 Beta 1)
+        self.kernel_relay_version:  str = "1.0.0"  #  KernelRelayHost (15.0 Beta 3)
 
         ## Apple - Dortania Modified
         self.bcm570_version:           str = "1.0.2"  # CatalinaBCM5701Ethernet
@@ -480,6 +481,10 @@ class Constants:
     def apple_spi_hid_path(self):
         return self.payload_kexts_path / Path(f"Misc/AppleHSSPIHIDDriver-v{self.apple_spi_hid_version}.zip")
 
+    @property
+    def kernel_relay_path(self):
+        return self.payload_kexts_path / Path(f"Misc/KernelRelayHost-v{self.kernel_relay_version}.zip")
+
     @property
     def mousse_path(self):
         return self.payload_kexts_path / Path(f"SSE/AAAMouSSE-v{self.mousse_version}.zip")

opencore_legacy_patcher/efi_builder/misc.py

@@ -388,4 +388,5 @@ xw
         support.BuildSupport(self.model, self.constants, self.config).enable_kext("corecrypto_T1.kext", self.constants.t1_corecrypto_version, self.constants.t1_corecrypto_path)
         support.BuildSupport(self.model, self.constants, self.config).enable_kext("AppleSSE.kext", self.constants.t1_sse_version, self.constants.t1_sse_path)
         support.BuildSupport(self.model, self.constants, self.config).enable_kext("AppleKeyStore.kext", self.constants.t1_key_store_version, self.constants.t1_key_store_path)
-        support.BuildSupport(self.model, self.constants, self.config).enable_kext("AppleCredentialManager.kext", self.constants.t1_credential_version, self.constants.t1_credential_path)
+        support.BuildSupport(self.model, self.constants, self.config).enable_kext("AppleCredentialManager.kext", self.constants.t1_credential_version, self.constants.t1_credential_path)
+        support.BuildSupport(self.model, self.constants, self.config).enable_kext("KernelRelayHost.kext", self.constants.kernel_relay_version, self.constants.kernel_relay_path)

payloads/Config/config.plist

@@ -1877,6 +1877,24 @@
 				<key>PlistPath</key>
 				<string>Contents/Info.plist</string>
 			</dict>
+			<dict>
+				<key>Arch</key>
+				<string>x86_64</string>
+				<key>Comment</key>
+				<string>KernelRelayHost - T1 Communication</string>
+				<key>Enabled</key>
+				<false/>
+				<key>MaxKernel</key>
+				<string></string>
+				<key>MinKernel</key>
+				<string>24.0.0</string>
+				<key>BundlePath</key>
+				<string>KernelRelayHost.kext</string>
+				<key>ExecutablePath</key>
+				<string>Contents/MacOS/KernelRelayHost</string>
+				<key>PlistPath</key>
+				<string>Contents/Info.plist</string>
+			</dict>
 		</array>
 		<key>Block</key>
 		<array>