Definitions

This Doc will introduce all definitions available in Defines.dsc.inc

HAS_MLVM

• Type
  • Boolean
• Why define it ?
  • Some devices have MLVM region, some do not.
  • If the device has MLVM enabled, MLVM regions will be protected, and they'll be un-readable and un-writeable.
• What happened when 1?
  • If HAS_MLVM = TRUE, the MLVM regions will be reserved, so HLOS will not use this region.
  • Total RAM size will decrease about 400MB.
• Where used it ?
  • HAS_MLVM is used in Platforms/SurfaceDuoFamilyPkg/Driver/RamPartitionDxe/ExtendedMemoryMap.h.

CUST_PLATFORM_PRE_PI_LIB

Deprecated

This definition and codes are removed.
Please use DualBoot Patcher build dual boot kernel.

• Type
  • Boolean
• Why define it ?
  • Some device may want to customized IsLinuxBootRequested() function in Library/PlatformPrePiLib/PlatformUtils.c
  • The IsLinuxBootRequested() function is used to judge the direction where to boot.
    • return TRUE
      • boot to Android
    • return FALSE
      • boot to UEFI
• What happened when 1?
  • The build-system will try to find PlatformPrePiLib under Device/$(brand-codename)/Library/PlatformPrePiLib/
• Where used it ?
  • CUST_PLATFORM_PRE_PI_LIB is used in Platforms/SurfaceDuoFamilyPkg/SurfaceDuoFamily.dsc.inc
  • Line: 395

CUST_LOGO

• Type
  • Boolean
• Why define it ?
  • Some Device may want it's own logo. (i.e. Brand's Logo)
• What happened when 1?
  • The Boot Logo will be replaced with the one under Device/$(brand-codename)/Include/Resources/CustBootLogo.bmp
• Where used it ?
  • CUST_LOGO is used in Platforms/SurfaceDuoFamilyPkg/Frontpage.fdf.inc