Booter
MmioWhitelist
This section is allowing spaces to be passthrough to macOS that are generally ignored, useful when paired with DevirtualiseMmio. We can ignore this for our Virtual Machine use cases generally.
Patch
This contains general patches, for us, we can ignore this.
Quirks
Don’t skip over this section, we’ll be changing the following:
| Quirk | Value | Description |
|---|---|---|
| AllowRelocationBlock | True | The relocation block is a scratch buffer allocated in the lower 4 GB used for loading the kernel and related structures by EfiBoot |
| EnableSafeModeSlide | False | Patch bootloader to have KASLR enabled in safe mode, not needed |
| FixupAppleEfiImages | True | Modern secure PE loaders will refuse to load boot.efi images from Mac OS X 10.4 to macOS 10.12 due to these files containing W^X errors. |
| ProvideCustomSlide | False | Provide custom KASLR slide on low memory. |
| RebuildAppleMemoryMap | True | Generate macOS compatible Memory Map. |
| SetupVirtualMap | False | Setup virtual memory at SetVirtualAddresses. |
| SyncRuntimePermissions | True | Update memory permissions for the runtime environment. |