[edk2-devel] [PATCH v2 0/2] MdePkg, SecurityPkg: Add support to RngDxe and BaseRngLib for AARCH64 RNDR

Rebecca Cran rebecca at nuviainc.com
Fri May 7 14:23:13 UTC 2021


Update MdePkg BaseRngLib and SecurityPkg RngDxe to add support for
the AARCH64 RNDR instruction.

Changes from v1 to v2:

o Added a PCD, gEfiSecurityPkgTokenSpaceGuid.PcdCpuRngSupportedAlgorithm to
  specify which algorighm the platform supports.
o Moved ArmRndr() and ArmRndrrs() into BaseRngLib.
o Added Doxygen headers.
o Merged X64 and AARCH64 *GetBytes functions into a single RngGetBytes
  function.
o Updated constructors to return EFI_STATUS instead of RETURN_STATUS.
o Added ArchIsRngSupported function that gets called before each call to
  ArchGetRandomNumber*.

Rebecca Cran (2):
  MdePkg/BaseRngLib: Add support for ARMv8.5 RNG instructions
  SecurityPkg: Add support for RngDxe on AARCH64

 MdePkg/MdePkg.dec                                             |   9 +-
 SecurityPkg/SecurityPkg.dec                                   |   2 +
 MdePkg/MdePkg.dsc                                             |   4 +-
 SecurityPkg/SecurityPkg.dsc                                   |  11 +-
 MdePkg/Library/BaseRngLib/BaseRngLib.inf                      |  23 ++-
 SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.inf           |  24 ++-
 MdePkg/Library/BaseRngLib/AArch64/ArmRng.h                    |  59 +++++++
 MdePkg/Library/BaseRngLib/BaseRngLibInternals.h               |  79 +++++++++
 SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/AesCore.h |   0
 SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/RdRand.h  |  17 --
 SecurityPkg/RandomNumberGenerator/RngDxe/RngDxeInternals.h    | 117 ++++++++++++++
 MdePkg/Library/BaseRngLib/AArch64/Rndr.c                      | 139 ++++++++++++++++
 MdePkg/Library/BaseRngLib/BaseRng.c                           |  87 +++++-----
 MdePkg/Library/BaseRngLib/Rand/RdRand.c                       | 131 +++++++++++++++
 SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c     | 127 +++++++++++++++
 SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/AesCore.c |   0
 SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/RdRand.c  |  45 +-----
 SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c        | 146 +++++++++++++++++
 SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.c             | 170 ++++++++------------
 MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S            |  31 ++++
 MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.asm          |  30 ++++
 MdePkg/Library/BaseRngLib/AArch64/ArmRng.S                    |  61 +++++++
 MdePkg/Library/BaseRngLib/AArch64/ArmRng.asm                  |  64 ++++++++
 MdePkg/Library/BaseRngLib/BaseRngLib.uni                      |   6 +-
 24 files changed, 1152 insertions(+), 230 deletions(-)
 create mode 100644 MdePkg/Library/BaseRngLib/AArch64/ArmRng.h
 create mode 100644 MdePkg/Library/BaseRngLib/BaseRngLibInternals.h
 rename SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/AesCore.h (100%)
 rename SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/RdRand.h (72%)
 create mode 100644 SecurityPkg/RandomNumberGenerator/RngDxe/RngDxeInternals.h
 create mode 100644 MdePkg/Library/BaseRngLib/AArch64/Rndr.c
 create mode 100644 MdePkg/Library/BaseRngLib/Rand/RdRand.c
 create mode 100644 SecurityPkg/RandomNumberGenerator/RngDxe/AArch64/RngDxe.c
 rename SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/AesCore.c (100%)
 rename SecurityPkg/RandomNumberGenerator/RngDxe/{ => Rand}/RdRand.c (71%)
 create mode 100644 SecurityPkg/RandomNumberGenerator/RngDxe/Rand/RngDxe.c
 create mode 100644 MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.S
 create mode 100644 MdePkg/Library/BaseRngLib/AArch64/ArmReadIdIsar0.asm
 create mode 100644 MdePkg/Library/BaseRngLib/AArch64/ArmRng.S
 create mode 100644 MdePkg/Library/BaseRngLib/AArch64/ArmRng.asm

-- 
2.26.2



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