Dropped broken AppleIntelMCEReporter prevention support

Author: vit9696

CPUFriend.xcodeproj/project.pbxproj

@@ -171,7 +171,7 @@
 		1C748C1E1C21952C0024EED2 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1100;
+				LastUpgradeCheck = 1120;
 				ORGANIZATIONNAME = Vanilla;
 				TargetAttributes = {
 					1C748C261C21952C0024EED2 = {
@@ -342,7 +342,7 @@
 				MODULE_NAME = org.vanilla.driver.CPUFriend;
 				MODULE_START = "$(PRODUCT_NAME)_kern_start";
 				MODULE_STOP = "$(PRODUCT_NAME)_kern_stop";
-				MODULE_VERSION = 1.1.9;
+				MODULE_VERSION = 1.2.0;
 				OTHER_CFLAGS = (
 					"-mmmx",
 					"-msse",
@@ -388,7 +388,7 @@
 				MODULE_NAME = org.vanilla.driver.CPUFriend;
 				MODULE_START = "$(PRODUCT_NAME)_kern_start";
 				MODULE_STOP = "$(PRODUCT_NAME)_kern_stop";
-				MODULE_VERSION = 1.1.9;
+				MODULE_VERSION = 1.2.0;
 				OTHER_CFLAGS = (
 					"-mmmx",
 					"-msse",

CPUFriend/CPUFriend.cpp

@@ -11,18 +11,15 @@
 
 static const char *kextACPISMC[]     { "/System/Library/Extensions/IOPlatformPluginFamily.kext/Contents/PlugIns/ACPI_SMC_PlatformPlugin.kext/Contents/MacOS/ACPI_SMC_PlatformPlugin" };
 static const char *kextX86PP[]       { "/System/Library/Extensions/IOPlatformPluginFamily.kext/Contents/PlugIns/X86PlatformPlugin.kext/Contents/MacOS/X86PlatformPlugin" };
-static const char *kextMCEReporter[] { "/System/Library/Extensions/AppleIntelMCEReporter.kext/Contents/MacOS/AppleIntelMCEReporter" };
 
 enum : size_t {
 	KextACPISMC,
 	KextX86PP,
-	KextMCEReporter
 };
 
 static KernelPatcher::KextInfo kextList[] {
 	{ "com.apple.driver.ACPI_SMC_PlatformPlugin", kextACPISMC,     arrsize(kextACPISMC),     {}, {}, KernelPatcher::KextInfo::Unloaded },
 	{ "com.apple.driver.X86PlatformPlugin",       kextX86PP,       arrsize(kextX86PP),       {}, {}, KernelPatcher::KextInfo::Unloaded },
-	{ "com.apple.driver.AppleIntelMCEReporter",   kextMCEReporter, arrsize(kextMCEReporter), {}, {}, KernelPatcher::KextInfo::Unloaded }
 };
 
 static constexpr size_t kextListSize = arrsize(kextList);
@@ -116,14 +113,6 @@ void CPUFriendPlugin::myX86PPConfigResourceCallback(uint32_t requestTag, kern_re
 	FunctionCast(myX86PPConfigResourceCallback, callbackCpuf->orgX86PPConfigLoadCallback)(requestTag, result, resourceData, resourceDataLength, context);
 }
 
-IOService *CPUFriendPlugin::myAppleIntelMCEReporterProbe(IOService *, IOService *, SInt32 *)
-{
-	DBGLOG("cpuf", "killing AppleIntelMCEReporter");
-
-	// always return nullptr for prevention of AppleIntelMCEReporter.
-	return nullptr;
-}
-
 void CPUFriendPlugin::processKext(KernelPatcher &patcher, size_t index, mach_vm_address_t address, size_t size)
 {
 	if (kextList[KextACPISMC].loadIndex == index) {
@@ -143,14 +132,4 @@ void CPUFriendPlugin::processKext(KernelPatcher &patcher, size_t index, mach_vm_
 		);
 		patcher.routeMultiple(index, &request, 1, address, size);
 	}
-    
-	if (kextList[KextMCEReporter].loadIndex == index) {
-		DBGLOG("cpuf", "patching AppleIntelMCEReporter");
-		KernelPatcher::RouteRequest request(
-			"__ZN21AppleIntelMCEReporter5probeEP9IOServicePi",
-			myAppleIntelMCEReporterProbe
-		);
-		patcher.routeMultiple(index, &request, 1, address, size);
-	}
-
 }

CPUFriend/CPUFriend.hpp

@@ -52,7 +52,6 @@ class CPUFriendPlugin {
 	 */
 	static void myACPISMCConfigResourceCallback(uint32_t requestTag, kern_return_t result, const void *resourceData, uint32_t resourceDataLength, void *context);
 	static void myX86PPConfigResourceCallback(uint32_t requestTag, kern_return_t result, const void *resourceData, uint32_t resourceDataLength, void *context);
-	static IOService *myAppleIntelMCEReporterProbe(IOService *, IOService *, SInt32 *);
 
 	/**
 	 *  Patch kext if needed and prepare other patches

Changelog.md

@@ -1,5 +1,8 @@
 CPUFriend Changelog
 ===================
+#### v1.2.0
+- Dropped broken AppleIntelMCEReporter prevention support
+
 #### v1.1.9
 - Unified release archive names
 - Added support for prevention of AppleIntelMCEReporter, details can be found [here](https://github.com/acidanthera/bugtracker/issues/424#issuecomment-512596034)

Instructions.md

@@ -17,7 +17,6 @@ Add `-cpufbeta` to enable CPUFriend on unsupported OS versions.
 
 #### Technical background
 - Function `configResourceCallback()` from `ACPI_SMC_PlatformPlugin` or `X86PlatformPlugin` is hooked for CPU power management data customization, nothing will be handled without data received from user.
-- Function `AppleIntelMCEReporter::probe()` is hooked for prevention of AppleIntelMCEReporter, enabled mandatorily at the moment.
 
 #### Configuration
 Use `Tools/ResourceConverter.sh` to generate a working copy of either `CPUFriendDataProvider.kext` (Convenience preferred) or `ssdt_data.dsl` (Performance preferred).
@@ -32,7 +31,7 @@ Where there is another SSDT generated by [ssdtPRGen.sh](https://github.com/Piker
 
 NOTE:
 - The created kext/ssdt is located in the current working directory that can be revealed with `pwd`.
--  `file` should be a ***complete plist*** from `Recources` inside `ACPI_SMC_PlatformPlugin` or `X86PlatformPlugin` ***with certain modifications*** (Otherwise why is CPUFriend even required other than the prevention of AppleIntelMCEReporter?) instead of something like a raw `FrequencyVectors` entry.
+-  `file` should be a ***complete plist*** from `Recources` inside `ACPI_SMC_PlatformPlugin` or `X86PlatformPlugin` ***with certain modifications*** (Otherwise why is CPUFriend even required?) instead of something like a raw `FrequencyVectors` entry.
 
 #### Data Combination
 1. Generate a correct copy of `ssdt_data.dsl` with `./ResourceConverter.sh --acpi /path/to/file`.

README.md

@@ -3,7 +3,7 @@ CPUFriend
 
 [![Build Status](https://travis-ci.com/acidanthera/CPUFriend.svg?branch=master)](https://travis-ci.com/acidanthera/CPUFriend) [![Scan Status](https://scan.coverity.com/projects/16841/badge.svg?flat=1)](https://scan.coverity.com/projects/16841)
 
-A [Lilu](https://github.com/vit9696/Lilu) plug-in for dynamic power management data injection and prevention of AppleIntelMCEReporter, details can be found [here](https://github.com/acidanthera/bugtracker/issues/424#issuecomment-512596034).
+A [Lilu](https://github.com/vit9696/Lilu) plug-in for dynamic power management data injection.
 
 #### Notes
 This repository should be compiled with latest [Lilu](https://github.com/vit9696/Lilu), otherwise the compilation will fail!