OpenCoreKernel: Implement DummyPowerManagement quirk

Changelog.md

@@ -18,6 +18,7 @@ OpenCore Changelog
 - Added `TakeoffDelay` option for improved action hotkey support
 - Added Mac GOP support to `ProvideConsoleGop` quirk
 - Added experimental `BuiltinTextRenderer` boot option
+- Added `DummyPowerManagement` kernel quirk to disable CPU PM
 
 #### v0.5.4
 - Added Enter key handling in boot menu for quick proceed

Docs/Configuration.tex

@@ -1877,6 +1877,16 @@ blocking.
   ACPI table and disabling VT-d in firmware preferences, which does not break
   VT-d support in other systems in case they need it.
 
+\item
+  \texttt{DummyPowerManagement}\\
+  \textbf{Type}: \texttt{plist\ boolean}\\
+  \textbf{Failsafe}: \texttt{false}\\
+  \textbf{Description}: Disables \texttt{AppleIntelCpuPowerManagement}.
+
+  \emph{Note}: This option is a preferred alternative to
+  \texttt{NullCpuPowerManagement.kext} for CPUs without native power
+  management driver in macOS.
+
 \item
   \texttt{ExternalDiskIcons}\\
   \textbf{Type}: \texttt{plist\ boolean}\\

Docs/Differences/Differences.tex

 \documentclass[]{article}
 %DIF LATEXDIFF DIFFERENCE FILE
 %DIF DEL PreviousConfiguration.tex   Fri Jan 17 12:56:17 2020
-%DIF ADD ../Configuration.tex        Sun Feb  2 01:35:24 2020
+%DIF ADD ../Configuration.tex        Sun Feb  2 02:19:09 2020
 
 \usepackage{lmodern}
 \usepackage{amssymb,amsmath}
@@ -1938,7 +1938,19 @@ blocking.
   VT-d support in other systems in case they need it.
 
 \item
-  \texttt{ExternalDiskIcons}\\
+  \DIFaddbegin \texttt{\DIFadd{DummyPowerManagement}}\\
+  \textbf{\DIFadd{Type}}\DIFadd{: }\texttt{\DIFadd{plist\ boolean}}\\
+  \textbf{\DIFadd{Failsafe}}\DIFadd{: }\texttt{\DIFadd{false}}\\
+  \textbf{\DIFadd{Description}}\DIFadd{: Disables }\texttt{\DIFadd{AppleIntelCpuPowerManagement}}\DIFadd{.
+}
+
+  \emph{\DIFadd{Note}}\DIFadd{: This option is a preferred alternative to
+  }\texttt{\DIFadd{NullCpuPowerManagement.kext}} \DIFadd{for CPUs without native power
+  management driver in macOS.
+}
+
+\item
+  \DIFaddend \texttt{ExternalDiskIcons}\\
   \textbf{Type}: \texttt{plist\ boolean}\\
   \textbf{Failsafe}: \texttt{false}\\
   \textbf{Description}: Apply icon type patches to AppleAHCIPort.kext to force

Docs/Kexts.md

@@ -53,7 +53,6 @@ Kexts
 - [CPUFriend.kext](https://github.com/acidanthera/CPUFriend)
 - [FakeSMC.kext and sensors](https://github.com/CloverHackyColor/FakeSMC3_with_plugins)
 - [HWPEnabler.kext](https://github.com/headkaze/HWPEnable)
-- [NullCPUPowerManagement.kext](https://github.com/corpnewt/NullCPUPowerManagement) for AMD only (also some virtual machines)
 - [OpcodeEmulator.kext](https://www.insanelymac.com/forum/topic/329704-opcode-emulator-opemu-plug-in-project/)
 - [TSCAdjustReset.kext](https://github.com/interferenc/TSCAdjustReset)
 - [VirtualSMC.kext and sensors](https://github.com/acidanthera/VirtualSMC)

Docs/Sample.plist

@@ -539,6 +539,8 @@
 			<false/>
 			<key>DisableIoMapper</key>
 			<false/>
+			<key>DummyPowerManagement</key>
+			<false/>
 			<key>ExternalDiskIcons</key>
 			<false/>
 			<key>IncreasePciBarSize</key>

Docs/SampleFull.plist

@@ -539,6 +539,8 @@
 			<false/>
 			<key>DisableIoMapper</key>
 			<false/>
+			<key>DummyPowerManagement</key>
+			<false/>
 			<key>ExternalDiskIcons</key>
 			<false/>
 			<key>IncreasePciBarSize</key>

Platform/OpenCore/OpenCoreKernel.c

@@ -437,6 +437,10 @@ OcKernelApplyPatches (
     if (Config->Kernel.Quirks.CustomSmbiosGuid) {
       PatchCustomSmbiosGuid (Context);
     }
+
+    if (Config->Kernel.Quirks.DummyPowerManagement) {
+      PatchDummyPowerManagement (Context);
+    }
   } else {
     if (Config->Kernel.Quirks.AppleXcpmCfgLock) {
       PatchAppleXcpmCfgLock (&Patcher);