---
title: boot_args
framework: Kernel
role: symbol
role_heading: Structure
platforms: [macOS 10.0+]
path: kernel/boot_args
---

# boot_args

## Declaration

```occ
typedef struct boot_args {
    ...
} boot_args;
```

## Topics

### Instance Properties

- [CommandLine](kernel/boot_args/1506989-commandline.md)
- [FSBFrequency](kernel/boot_args/1506903-fsbfrequency.md)
- [KC_hdrs_vaddr](kernel/boot_args/3553756-kc_hdrs_vaddr.md)
- [MemoryMap](kernel/boot_args/1506953-memorymap.md)
- [MemoryMapDescriptorSize](kernel/boot_args/1507007-memorymapdescriptorsize.md)
- [MemoryMapDescriptorVersion](kernel/boot_args/1506997-memorymapdescriptorversion.md)
- [MemoryMapSize](kernel/boot_args/1506931-memorymapsize.md)
- [PhysicalMemorySize](kernel/boot_args/1506919-physicalmemorysize.md)
- [Revision](kernel/boot_args/1506957-revision.md)
- [Version](kernel/boot_args/1506978-version.md)
- [Video](kernel/boot_args/1506887-video.md)
- [VideoV1](kernel/boot_args/2097305-videov1.md)
- [apfsDataSize](kernel/boot_args/2870577-apfsdatasize.md)
- [apfsDataStart](kernel/boot_args/2870578-apfsdatastart.md)
- [arvManifestSize](kernel/boot_args/3567198-arvmanifestsize.md)
- [arvManifestStart](kernel/boot_args/3567199-arvmanifeststart.md)
- [arvRootHashSize](kernel/boot_args/3567200-arvroothashsize.md)
- [arvRootHashStart](kernel/boot_args/3567201-arvroothashstart.md)
- [bootMemSize](kernel/boot_args/1506941-bootmemsize.md)
- [bootMemStart](kernel/boot_args/1506944-bootmemstart.md)
- [bootProgressMeterEnd](kernel/boot_args/1507025-bootprogressmeterend.md)
- [bootProgressMeterStart](kernel/boot_args/1507023-bootprogressmeterstart.md)
- [boot_SMC_plimit](kernel/boot_args/1506935-boot_smc_plimit.md)
- [bsARVManifestSize](kernel/boot_args/3728007-bsarvmanifestsize.md)
- [bsARVManifestStart](kernel/boot_args/3728008-bsarvmanifeststart.md)
- [bsARVRootHashSize](kernel/boot_args/3728009-bsarvroothashsize.md)
- [bsARVRootHashStart](kernel/boot_args/3728010-bsarvroothashstart.md)
- [csrActiveConfig](kernel/boot_args/1506965-csractiveconfig.md)
- [csrCapabilities](kernel/boot_args/1506925-csrcapabilities.md)
- [debugMode](kernel/boot_args/1506980-debugmode.md)
- [deviceTreeLength](kernel/boot_args/1506908-devicetreelength.md)
- [deviceTreeP](kernel/boot_args/1507027-devicetreep.md)
- [efiMode](kernel/boot_args/1507000-efimode.md)
- [efiRuntimeServicesPageCount](kernel/boot_args/1506977-efiruntimeservicespagecount.md)
- [efiRuntimeServicesPageStart](kernel/boot_args/1506929-efiruntimeservicespagestart.md)
- [efiRuntimeServicesVirtualPageStart](kernel/boot_args/1506897-efiruntimeservicesvirtualpagesta.md)
- [efiSystemTable](kernel/boot_args/1506945-efisystemtable.md)
- [flags](kernel/boot_args/1506999-flags.md)
- [kaddr](kernel/boot_args/1507015-kaddr.md)
- [keyStoreDataSize](kernel/boot_args/1506961-keystoredatasize.md)
- [keyStoreDataStart](kernel/boot_args/1506958-keystoredatastart.md)
- [ksize](kernel/boot_args/1506927-ksize.md)
- [kslide](kernel/boot_args/1507009-kslide.md)
- [pciConfigSpaceBaseAddress](kernel/boot_args/1506966-pciconfigspacebaseaddress.md)
- [pciConfigSpaceEndBusNumber](kernel/boot_args/1507019-pciconfigspaceendbusnumber.md)
- [pciConfigSpaceStartBusNumber](kernel/boot_args/1506972-pciconfigspacestartbusnumber.md)
- [performanceDataSize](kernel/boot_args/1506916-performancedatasize.md)
- [performanceDataStart](kernel/boot_args/1507013-performancedatastart.md)