Drop invalid dummy graphics and provide alternative

README.md

@@ -4,7 +4,14 @@ UEFIGraphicsFB
 [![Build Status](https://github.com/acidanthera/UEFIGraphicsFB/workflows/CI/badge.svg?branch=master)](https://github.com/acidanthera/UEFIGraphicsFB/actions) [![Scan Status](https://scan.coverity.com/projects/23074/badge.svg?flat=1)](https://scan.coverity.com/projects/23074)
 
 IOGraphics framebuffer based on UEFI framebuffer passed over XNU boot arguments. Provides basic
-display output without hardware acceleration on certain virtual machines.
+display output without hardware acceleration on generic hardware.
+
+#### Disabling other GPUs
+
+If there are other conflicting GPUs in the system, one can disable them by injecting the following properties:
+
+- `name` = `<unused>`
+- `class-code` = `<FF FF FF FF>`
 
 #### Credits
 - [Apple](https://www.apple.com) for macOS

UEFIGraphicsFB.xcodeproj/project.pbxproj

@@ -10,8 +10,6 @@
 		416882EE263E3DD5005A10E2 /* UEFIGraphicsFB.h in Headers */ = {isa = PBXBuildFile; fileRef = 416882ED263E3DD5005A10E2 /* UEFIGraphicsFB.h */; };
 		416882F0263E3DD5005A10E2 /* UEFIGraphicsFB.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 416882EF263E3DD5005A10E2 /* UEFIGraphicsFB.cpp */; };
 		CEAE89A026404DF40073A6D6 /* libkmod.a in Frameworks */ = {isa = PBXBuildFile; fileRef = CEAE899F26404DF40073A6D6 /* libkmod.a */; };
-		CEFF7E9526412BB600D6B242 /* DummyGraphics.cpp in Sources */ = {isa = PBXBuildFile; fileRef = CEFF7E9326412BB600D6B242 /* DummyGraphics.cpp */; };
-		CEFF7E9626412BB600D6B242 /* DummyGraphics.h in Headers */ = {isa = PBXBuildFile; fileRef = CEFF7E9426412BB600D6B242 /* DummyGraphics.h */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -20,8 +18,6 @@
 		416882EF263E3DD5005A10E2 /* UEFIGraphicsFB.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = UEFIGraphicsFB.cpp; sourceTree = "<group>"; };
 		416882F1263E3DD5005A10E2 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		CEAE899F26404DF40073A6D6 /* libkmod.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libkmod.a; path = ../Lilu/MacKernelSDK/Library/x86_64/libkmod.a; sourceTree = "<group>"; };
-		CEFF7E9326412BB600D6B242 /* DummyGraphics.cpp */ = {isa = PBXFileReference; indentWidth = 2; lastKnownFileType = sourcecode.cpp.cpp; path = DummyGraphics.cpp; sourceTree = "<group>"; tabWidth = 2; usesTabs = 0; };
-		CEFF7E9426412BB600D6B242 /* DummyGraphics.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DummyGraphics.h; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -59,8 +55,6 @@
 		416882EC263E3DD5005A10E2 /* UEFIGraphicsFB */ = {
 			isa = PBXGroup;
 			children = (
-				CEFF7E9426412BB600D6B242 /* DummyGraphics.h */,
-				CEFF7E9326412BB600D6B242 /* DummyGraphics.cpp */,
 				416882ED263E3DD5005A10E2 /* UEFIGraphicsFB.h */,
 				416882EF263E3DD5005A10E2 /* UEFIGraphicsFB.cpp */,
 				416882F1263E3DD5005A10E2 /* Info.plist */,
@@ -83,7 +77,6 @@
 			isa = PBXHeadersBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				CEFF7E9626412BB600D6B242 /* DummyGraphics.h in Headers */,
 				416882EE263E3DD5005A10E2 /* UEFIGraphicsFB.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -178,7 +171,6 @@
 			buildActionMask = 2147483647;
 			files = (
 				416882F0263E3DD5005A10E2 /* UEFIGraphicsFB.cpp in Sources */,
-				CEFF7E9526412BB600D6B242 /* DummyGraphics.cpp in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

UEFIGraphicsFB/Info.plist

@@ -20,23 +20,6 @@
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>IOKitPersonalities</key>
 	<dict>
-		<key>DummyGraphics</key>
-		<dict>
-			<key>CFBundleIdentifier</key>
-			<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
-			<key>IOClass</key>
-			<string>DummyGraphics</string>
-			<key>IOMatchCategory</key>
-			<string>IOFramebuffer</string>
-			<key>IOPCIClassMatch</key>
-			<string>0x03000000&amp;0xFF000000</string>
-			<key>IOPCITunnelCompatible</key>
-			<true/>
-			<key>IOProbeScore</key>
-			<integer>100000</integer>
-			<key>IOProviderClass</key>
-			<string>IOPCIDevice</string>
-		</dict>
 		<key>UEFIGraphicsFB</key>
 		<dict>
 			<key>CFBundleIdentifier</key>

UEFIGraphicsFB/UEFIGraphicsFB.cpp

@@ -46,6 +46,6 @@ bool UEFIGraphicsFB::start(IOService *provider) {
   //
   registerService();
 
-  SYSLOG("Framebuffer is at 0x%X (width %u height %u bits %u bytes/row %u)", videoBaseAddress, videoWidth, videoHeight, videoDepth, videoBytesPerRow);
+  DBGLOG("Framebuffer is at 0x%X (width %u height %u bits %u bytes/row %u)", videoBaseAddress, videoWidth, videoHeight, videoDepth, videoBytesPerRow);
   return true;
 }