[edk2-devel] [PATCH v6 2/2] add ArmCpuInfo EFI application

Leif Lindholm quic_llindhol at quicinc.com
Fri Apr 21 16:33:59 UTC 2023


On Fri, Apr 21, 2023 at 08:37:42 -0600, Rebecca Cran wrote:
> I noticed CI failed for the push PR
> (https://github.com/tianocore/edk2/pull/4292).
> 
> 
> Ecc is complaining about missing Doxygen info for the functions:
> 
> https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=88023&view=logs&j=d36e2059-ab45-57a4-e2a1-e73032481054&t=463dc808-035c-5fe4-17fd-50a99c74a4aa
> 
> 
> It looks like there's a stray commit merging out from master, that doesn't
> have a Signed-off-by line?

Ah. My bad.
Didn't realise github generated those when it asked the seemingly
helpful question of whether it should update mr to latest master...

/
    Leif

> And it looks like there might be Uncrustify problems too: https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=88024&view=logs&jobId=2640d2b2-7c53-5a2b-80c7-040377c664fd&j=2640d2b2-7c53-5a2b-80c7-040377c664fd&t=a7f329c1-489d-56ab-b670-1c248e984338
> 
> 
> -- 
> 
> Rebecca Cran
> 
> 
> 
> On 4/20/23 11:29, Leif Lindholm wrote:
> > On Thu, Apr 20, 2023 at 16:44:23 +0200, Marcin Juszkiewicz wrote:
> > > App goes through ID_AA64*_EL1 system registers and decode their values.
> > > 
> > > Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz at linaro.org>
> > For the series:
> > Reviewed-by: Leif Lindholm <quic_llindhol at quicinc.com>
> > 
> > After discussing with Marcin on side channel, I folded in a statement
> > at the head of ArmCpuInfo.c that the app was written against ARM DDI
> > 0487I.a version (current) of the ARM Architecture Reference Manual (A
> > profile), and that this information should be updated when features
> > are added from a subsequent version of the document.
> > 
> > Submitted as github merge request #4292, currently going through CI.
> > 
> > Thanks!
> > 
> > /
> >      Leif
> > 
> > > ---
> > >   ArmPkg/ArmPkg.dsc                            |    1 +
> > >   ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf |   33 +
> > >   ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c   | 2346 ++++++++++++++++++
> > >   3 files changed, 2380 insertions(+)
> > >   create mode 100644 ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf
> > >   create mode 100644 ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
> > > 
> > > diff --git a/ArmPkg/ArmPkg.dsc b/ArmPkg/ArmPkg.dsc
> > > index 3fb95d1951a9..6b938ce8b671 100644
> > > --- a/ArmPkg/ArmPkg.dsc
> > > +++ b/ArmPkg/ArmPkg.dsc
> > > @@ -166,6 +166,7 @@ [Components.AARCH64]
> > >     ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.inf
> > >     ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf
> > >     ArmPkg/Library/ArmMmuLib/ArmMmuPeiLib.inf
> > > +  ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf
> > >   [Components.AARCH64, Components.ARM]
> > >     ArmPkg/Library/StandaloneMmMmuLib/ArmMmuStandaloneMmLib.inf
> > > diff --git a/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf
> > > new file mode 100644
> > > index 000000000000..d2235d3aa911
> > > --- /dev/null
> > > +++ b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf
> > > @@ -0,0 +1,33 @@
> > > +## @file
> > > +#
> > > +#  Attempt to have AArch64 cpu information.
> > > +#
> > > +#  Based on HelloWorld:
> > > +#  Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.
> > > +#  Copyright (c) 2023 Marcin Juszkiewicz
> > > +#
> > > +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +#
> > > +#
> > > +##
> > > +
> > > +[Defines]
> > > +  INF_VERSION                    = 0x00010019
> > > +  BASE_NAME                      = ArmCpuInfo
> > > +  FILE_GUID                      = b3134491-6502-4faf-a9da-007184e32163
> > > +  MODULE_TYPE                    = UEFI_APPLICATION
> > > +  VERSION_STRING                 = 1.0
> > > +  ENTRY_POINT                    = UefiMain
> > > +
> > > +[Sources]
> > > +  ArmCpuInfo.c
> > > +
> > > +[Packages]
> > > +  ArmPkg/ArmPkg.dec
> > > +  MdePkg/MdePkg.dec
> > > +  MdeModulePkg/MdeModulePkg.dec
> > > +
> > > +[LibraryClasses]
> > > +  ArmLib
> > > +  UefiApplicationEntryPoint
> > > +  UefiLib
> > > diff --git a/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
> > > new file mode 100644
> > > index 000000000000..63914d9815c6
> > > --- /dev/null
> > > +++ b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
> > > @@ -0,0 +1,2346 @@
> > > +/** @file
> > > +
> > > +  Copyright  (c) 2023 Marcin Juszkiewicz
> > > +  SPDX-License-Identifier: BSD-2-Clause-Patent
> > > +
> > > + **/
> > > +
> > > +#include <Library/UefiLib.h>
> > > +#include <Library/ArmLib/AArch64/AArch64Lib.h>
> > > +
> > > +// We cannot assume GCC extensions to be present so let use
> > > +// binary numbers via enum.
> > > +// Arm ARM uses binary numbers so this way it is more readable.
> > > +enum {
> > > +   b0000,
> > > +   b0001,
> > > +   b0010,
> > > +   b0011,
> > > +   b0100,
> > > +   b0101,
> > > +   b0110,
> > > +   b0111,
> > > +   b1000,
> > > +   b1001,
> > > +   b1010,
> > > +   b1011,
> > > +   b1100,
> > > +   b1101,
> > > +   b1110,
> > > +   b1111
> > > +};
> > > +
> > > +VOID
> > > +PrintText (
> > > +  CONST CHAR8  *Field,
> > > +  CONST CHAR8  *Bits,
> > > +  CONST CHAR8  *Value,
> > > +  CONST CHAR8  *Description
> > > +  )
> > > +{
> > > +  AsciiPrint (" %-16a | %5a | %5a | %a\n", Field, Bits, Value, Description);
> > > +}
> > > +
> > > +VOID
> > > +PrintValues (
> > > +  CONST CHAR8  *Field,
> > > +  CONST CHAR8  *Bits,
> > > +  CONST UINT8  Value,
> > > +  CONST CHAR8  *Description
> > > +  )
> > > +{
> > > +  STATIC CONST CHAR8  Nibbles[][5] = {
> > > +    "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111",
> > > +    "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"
> > > +  };
> > > +
> > > +  AsciiPrint (" %-16a | %5a | %5a | %a\n", Field, Bits, Nibbles[Value & 0xf], Description);
> > > +}
> > > +
> > > +VOID
> > > +PrintSpacer (
> > > +  VOID
> > > +  )
> > > +{
> > > +  AsciiPrint ("------------------|-------|-------|----------------------------------------------\n");
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Mmfr0 (
> > > +  CONST UINT64  Aa64Mmfr0
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64MMFR0";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = Aa64Mmfr0 & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "32 Bits  (4GB) of physical address range supported.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "36 Bits  (64GB) of physical address range supported.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "40 Bits  (1TB) of physical address range supported.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "42 Bits  (4TB) of physical address range supported.";
> > > +      break;
> > > +    case b0100:
> > > +      Description = "44 Bits  (16TB) of physical address range supported.";
> > > +      break;
> > > +    case b0101:
> > > +      Description = "48 Bits  (256TB) of physical address range supported.";
> > > +      break;
> > > +    case b0110:
> > > +      Description = "52 Bits  (4PB) of physical address range supported.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +  if (Value == b0110) {
> > > +    PrintText ("", "", "", "FEAT_LPA implemented.");
> > > +  }
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Mmfr0 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "ASID: 8 Bits";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "ASID: 16 Bits";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Mmfr0 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "No mixed-endian support.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "Mixed-endian support.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // If mixed-endian is present, check whether supported at EL0
> > > +  if (((Aa64Mmfr0 >>  8) & 0xf) != b0000 ) {
> > > +    if (((Aa64Mmfr0 >> 16) & 0xf) == b0000 ) {
> > > +      PrintValues ("ID_AA64MMFR0", "19:16", b0000, "No mixed-endian support at EL0.");
> > > +    }
> > > +
> > > +    if (((Aa64Mmfr0 >> 16) & 0xf) == b0001 ) {
> > > +      PrintValues ("ID_AA64MMFR0", "19:16", b0001, "Mixed-endian support at EL0.");
> > > +    }
> > > +  }
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Mmfr0 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "No support for a distinction between Secure and Non-Secure Memory.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "Supports a distinction between Secure and Non-Secure Memory.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Mmfr0 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = " 4KB granule supported.";
> > > +      break;
> > > +    case b1111:
> > > +      Description = " 4KB granule not supported.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = " 4KB granule supported for 52-bit address.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Mmfr0 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0001:
> > > +      Description = " 4KB granule not supported at stage 2.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = " 4KB granule supported at stage 2.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = " 4KB granule supported at stage 2 for 52-bit address.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Mmfr0 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "16KB granule not supported.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "16KB granule supported.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "16KB granule supported for 52-bit address.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Mmfr0 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0001:
> > > +      Description = "16KB granule not supported at stage 2.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "16KB granule supported at stage 2.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "16KB granule supported at stage 2 for 52-bit address.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Mmfr0 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "64KB granule supported.";
> > > +      break;
> > > +    case b1111:
> > > +      Description = "64KB granule not supported.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Mmfr0 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0001:
> > > +      Description = "64KB granule not supported at stage 2.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "64KB granule supported at stage 2.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "47:44";
> > > +  Value = (Aa64Mmfr0 >> 44) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_ExS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_ExS implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 55:48 reserved
> > > +
> > > +  Bits  = "59:56";
> > > +  Value = (Aa64Mmfr0 >> 56) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_FGT not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_FGT implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "63:60";
> > > +  Value = (Aa64Mmfr0 >> 60) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_ECV not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_ECV implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_ECV implemented with extras.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Mmfr1 (
> > > +  CONST UINT64  Aa64Mmfr1,
> > > +  CONST UINT64  Aa64Pfr0
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64MMFR1";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = Aa64Mmfr1 & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_HAFDBS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_HAFDBS implemented without dirty status support.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_HAFDBS implemented with dirty status support.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Mmfr1 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_VMID16 not implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_VMID16 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Mmfr1 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_VHE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_VHE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Mmfr1 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_HPDS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_HPDS implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_HPDS2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "19:16";
> > > +  Value = (Aa64Mmfr1 >> 16) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LOR not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_LOR implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Mmfr1 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_PAN not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PAN implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_PAN2 implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_PAN3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // when FEAT_RAS implemented
> > > +  if ((((Aa64Pfr0 >> 28) & 0xf) == b0001) ||
> > > +      (((Aa64Pfr0 >> 28) & 0xf) == b0010))
> > > +  {
> > > +    if (((Aa64Mmfr1 >> 24) & 0xf) == b0000 ) {
> > > +      PrintValues ("ID_AA64MMFR1", "27:24", b0000, "The PE never generates an SError interrupt due to");
> > > +      PrintText ("", "", "", "an External abort on a speculative read.");
> > > +    }
> > > +
> > > +    if (((Aa64Mmfr1 >> 24) & 0xf) == b0001 ) {
> > > +      PrintValues ("ID_AA64MMFR1", "27:24", b0001, "The PE might generate an SError interrupt due to");
> > > +      PrintText ("", "", "", "an External abort on a speculative read.");
> > > +    }
> > > +  }
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Mmfr1 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_XNX not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_XNX implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Mmfr1 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TWED not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TWED implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Mmfr1 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_ETS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_ETS implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Mmfr1 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_HCX not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_HCX implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "47:44";
> > > +  Value = (Aa64Mmfr1 >> 44) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_AFP not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_AFP implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "51:48";
> > > +  Value = (Aa64Mmfr1 >> 48) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_nTLBPA not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_nTLBPA implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "55:52";
> > > +  Value = (Aa64Mmfr1 >> 52) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TIDCP1 not implemented";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TIDCP1 implemented";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "59:56";
> > > +  Value = (Aa64Mmfr1 >> 56) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_CMOW not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_CMOW implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 63:60 reserved
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Mmfr2 (
> > > +  CONST UINT64  Aa64Mmfr2
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64MMFR2";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = (Aa64Mmfr2)       & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TTCNP not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TTCNP implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Mmfr2 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_UAO not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_UAO implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Mmfr2 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LSMAOC not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_LSMAOC implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Mmfr2 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_IESB not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_IESB implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "19:16";
> > > +  Value = (Aa64Mmfr2 >> 16) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LVA not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_LVA implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Mmfr2 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_CCIDX not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_CCIDX implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Mmfr2 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_NV not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_NV implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_NV2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Mmfr2 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TTST not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TTST implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Mmfr2 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LSE2 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_LSE2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Mmfr2 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_IDST not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_IDST implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Mmfr2 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_S2FWB not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_S2FWB implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 47:44 reserved
> > > +
> > > +  Bits  = "51:48";
> > > +  Value = (Aa64Mmfr2 >> 48) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TTL not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TTL implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "55:52";
> > > +  Value = (Aa64Mmfr2 >> 52) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_BBM: Level 0 support for changing block size is supported.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_BBM: Level 1 support for changing block size is supported.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_BBM: Level 2 support for changing block size is supported.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "59:56";
> > > +  Value = (Aa64Mmfr2 >> 56) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_EVT not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_EVT: HCR_EL2.{TOCU, TICAB, TID4} traps are supported.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_EVT: HCR_EL2.{TTLBOS, TTLSBIS, TOCU, TICAB, TID4} traps are supported.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "63:60";
> > > +  Value = (Aa64Mmfr2 >> 60) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_E0PD not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_E0PD implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Pfr0 (
> > > +  CONST UINT64  Aa64Pfr0,
> > > +  CONST UINT64  Aa64Pfr1
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64PFR0";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = (Aa64Pfr0)       & 0xf;
> > > +  switch (Value) {
> > > +    case b0001:
> > > +      Description = "EL0 in AArch64 only";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "EL0 in AArch64 and AArch32";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Pfr0 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0001:
> > > +      Description = "EL1 in AArch64 only";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "EL1 in AArch64 and AArch32";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Pfr0 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "EL2 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "EL2 in AArch64 only";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "EL2 in AArch64 and AArch32";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Pfr0 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "EL3 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "EL3 in AArch64 only";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "EL3 in AArch64 and AArch32";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "19:16";
> > > +  Value = (Aa64Pfr0 >> 16) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Floating-point implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "Floating-point with half-precision support  (FEAT_FP16).";
> > > +      break;
> > > +    case b1111:
> > > +      Description = "Floating-point not implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Pfr0 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Advanced SIMD implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "Advanced SIMD with half precision support  (FEAT_FP16).";
> > > +      break;
> > > +    case b1111:
> > > +      Description = "Advanced SIMD not implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Pfr0 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "System registers of GIC CPU not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "System registers to versions 3.0/4.0 of GIC CPU implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "System registers to versions 4.1 of GIC CPU implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Pfr0 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_RAS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_RAS implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_RASv1p1 implemented.";
> > > +      // b0010 FEAT_RASv1p1 implemented and, if EL3 is implemented, FEAT_DoubleFault implemented.
> > > +      if ((((Aa64Pfr0 >> 12) & 0xf) == b0001) ||
> > > +          (((Aa64Pfr0 >> 12) & 0xf) == b0010))
> > > +      {
> > > +        Description = "FEAT_RASv1p1 implemented. FEAT_DoubleFault implemented.";
> > > +      }
> > > +
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +  if (Value == b0001) {
> > > +    if (((Aa64Pfr1 >> 12) & 0xf) == b0001 ) {
> > > +      PrintValues ("ID_AA64PRF1", "15:12", b0001, "FEAT_RASv1p1 implemented.");
> > > +    }
> > > +  }
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Pfr0 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SVE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SVE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Pfr0 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Secure EL2 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "Secure EL2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Pfr0 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      if (((Aa64Pfr1 >> 16) & 0xf) == b0000 ) {
> > > +        Description = "FEAT_MPAM not implemented.";
> > > +      }
> > > +
> > > +      if (((Aa64Pfr1 >> 16) & 0xf) == b0001 ) {
> > > +        Description = "FEAT_MPAM v0.1 implemented.";
> > > +      }
> > > +
> > > +      break;
> > > +    case b0001:
> > > +      if (((Aa64Pfr1 >> 16) & 0xf) == b0000 ) {
> > > +        Description = "FEAT_MPAM v1.0 implemented.";
> > > +      }
> > > +
> > > +      if (((Aa64Pfr1 >> 16) & 0xf) == b0001 ) {
> > > +        Description = "FEAT_MPAM v1.1 implemented.";
> > > +      }
> > > +
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "47:44";
> > > +  Value = (Aa64Pfr0 >> 44) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_AMU not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_AMUv1 implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_AMUv1p1 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "51:48";
> > > +  Value = (Aa64Pfr0 >> 48) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_DIT not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_DIT implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "55:52";
> > > +  Value = (Aa64Pfr0 >> 52) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_RME not implemented";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_RME implemented";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "59:56";
> > > +  Value = (Aa64Pfr0 >> 56) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Not disclosed whether FEAT_CSV2 is implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_CSV2 implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_CSV2_2 implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_CSV2_3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +  if (Value == b0001) {
> > > +    if (((Aa64Pfr1 >> 32) & 0xf) == b0001 ) {
> > > +      PrintValues ("ID_AA64PRF1", "35:32", b0001, "FEAT_CSV2_1p1 implemented.");
> > > +    }
> > > +
> > > +    if (((Aa64Pfr1 >> 32) & 0xf) == b0010 ) {
> > > +      PrintValues ("ID_AA64PRF1", "35:32", b0010, "FEAT_CSV2_1p2 implemented.");
> > > +    }
> > > +  }
> > > +
> > > +  Bits  = "63:60";
> > > +  Value = (Aa64Pfr0 >> 60) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_CSV3 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_CSV3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Pfr1 (
> > > +  CONST UINT64  Aa64Pfr1
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64PFR1";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = Aa64Pfr1 & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_BTI not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_BTI implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Pfr1 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SSBS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SSBS implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_SSBS2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Pfr1 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_MTE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_MTE implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_MTE2 implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_MTE3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 15:12 is RAS_frac
> > > +  // 19:16 is MPAM_frac
> > > +  // 23:20 is reserved
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Pfr1 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SME not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SME implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Pfr1 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_RNG_TRAP not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_RNG_TRAP implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 35:32 is CSV2_frac
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Pfr1 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_NMI not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_NMI implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 63:40 are reserved
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Isar0 (
> > > +  CONST UINT64  Aa64Isar0
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64ISAR0";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  // 3:0 reserved
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Isar0 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_AES, FEAT_PMULL not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_AES implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_AES and FEAT_PMULL implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Isar0 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SHA1 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SHA1 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Isar0 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SHA256, FEAT_SHA512 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SHA256 implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_SHA512 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "19:16";
> > > +  Value = (Aa64Isar0 >> 16) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "CRC32 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "CRC32 instructions implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Isar0 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LSE not implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_LSE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Isar0 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "TME instructions not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "TME instructions implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Isar0 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_RDM not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_RDM implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Isar0 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SHA3 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SHA3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Isar0 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SM3 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SM3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Isar0 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SM4 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SM4 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "47:44";
> > > +  Value = (Aa64Isar0 >> 44) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_DotProd not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_DotProd implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "51:48";
> > > +  Value = (Aa64Isar0 >> 48) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_FHM not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_FHM implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "55:52";
> > > +  Value = (Aa64Isar0 >> 52) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_FlagM/FEAT_FlagM2 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_FlagM implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_FlagM2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "59:56";
> > > +  Value = (Aa64Isar0 >> 56) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TLBIOS/FEAT_TLBIRANGE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TLBIOS implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_TLBIRANGE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "63:60";
> > > +  Value = (Aa64Isar0 >> 60) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_RNG not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_RNG implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Isar1 (
> > > +  CONST UINT64  Aa64Isar1
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64ISAR1";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = (Aa64Isar1 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "DC CVAP not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_DPB implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_DPB2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Isar1 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Address Authentication  (APA) not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PAuth implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_EPAC implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_PAuth2 implemented.";
> > > +      break;
> > > +    case b0100:
> > > +      Description = "FEAT_FPAC implemented.";
> > > +      break;
> > > +    case b0101:
> > > +      Description = "FEAT_FPACCOMBINE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +  if (Value > 0) {
> > > +    PrintText ("", "", "", "FEAT_PACQARMA5 implemented.");
> > > +  }
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Isar1 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Address Authentication  (API) not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PAuth implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_EPAC implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_PAuth2 implemented.";
> > > +      break;
> > > +    case b0100:
> > > +      Description = "FEAT_FPAC implemented.";
> > > +      break;
> > > +    case b0101:
> > > +      Description = "FEAT_FPACCOMBINE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +  if (Value > 0) {
> > > +    PrintText ("", "", "", "FEAT_PACIMP implemented.");
> > > +  }
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Isar1 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_JSCVT not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_JSCVT implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "19:16";
> > > +  Value = (Aa64Isar1 >> 16) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_FCMA not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_FCMA implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Isar1 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LRCPC (2) not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_LRCPC implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_LRCPC2 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Isar1 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_PACQARMA5 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PACQARMA5 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Isar1 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_PACIMP not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PACIMP implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Isar1 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_FRINTTS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_FRINTTS implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Isar1 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SB not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SB implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Isar1 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SPECRES not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SPECRES implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "47:44";
> > > +  Value = (Aa64Isar1 >> 44) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_BF16 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_BF16 implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_EBF16 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "51:48";
> > > +  Value = (Aa64Isar1 >> 48) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_DGH not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_DGH implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "55:52";
> > > +  Value = (Aa64Isar1 >> 52) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_I8MM not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_I8MM implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "59:56";
> > > +  Value = (Aa64Isar1 >> 56) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_XS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_XS implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "63:60";
> > > +  Value = (Aa64Isar1 >> 60) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_LS64 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_LS64 implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_LS64_V implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_LS64_ACCDATA implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Isar2 (
> > > +  CONST UINT64  Aa64Isar2
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64ISAR2";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = (Aa64Isar2 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_WFxT not implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_WFxT implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Isar2 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_RPRES not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_RPRES implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Isar2 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_PACQARMA3 not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PACQARMA3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Isar2 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Address Authentication  (APA3) not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PAuth implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_EPAC implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_PAuth2 implemented.";
> > > +      break;
> > > +    case b0100:
> > > +      Description = "FEAT_FPAC implemented.";
> > > +      break;
> > > +    case b0101:
> > > +      Description = "FEAT_FPACCOMBINE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "19:16";
> > > +  Value = (Aa64Isar2 >> 16) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_MOPS not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_MOPS implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Isar2 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_HBC not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_HBC implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "27:24";
> > > +  Value = (Aa64Isar2 >> 24) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_CONSTPACFIELD not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_CONSTPACFIELD implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 63:28 reserved
> > > +}
> > > +
> > > +VOID
> > > +HandleAa64Dfr0 (
> > > +  CONST UINT64  Aa64Dfr0
> > > +  )
> > > +{
> > > +  UINT64              Value;
> > > +  STATIC CONST CHAR8  RegName[] = "ID_AA64DFR0";
> > > +  CONST CHAR8         *Description;
> > > +  CONST CHAR8         *Bits;
> > > +
> > > +  Bits  = "3:0 ";
> > > +  Value = (Aa64Dfr0 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0110:
> > > +      Description = "Armv8 debug architecture";
> > > +      break;
> > > +    case b0111:
> > > +      Description = "Armv8 debug architecture with VHE";
> > > +      break;
> > > +    case b1000:
> > > +      Description = "FEAT_Debugv8p2 implemented.";
> > > +      break;
> > > +    case b1001:
> > > +      Description = "FEAT_Debugv8p4 implemented.";
> > > +      break;
> > > +    case b1010:
> > > +      Description = "FEAT_Debugv8p8 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "7:4 ";
> > > +  Value = (Aa64Dfr0 >>  4) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Trace unit System registers not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "Trace unit System registers implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "11:8 ";
> > > +  Value = (Aa64Dfr0 >>  8) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Performance Monitors Extension not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_PMUv3 implemented.";
> > > +      break;
> > > +    case b0100:
> > > +      Description = "FEAT_PMUv3p1 implemented.";
> > > +      break;
> > > +    case b0101:
> > > +      Description = "FEAT_PMUv3p4 implemented.";
> > > +      break;
> > > +    case b0110:
> > > +      Description = "FEAT_PMUv3p5 implemented.";
> > > +      break;
> > > +    case b0111:
> > > +      Description = "FEAT_PMUv3p7 implemented.";
> > > +      break;
> > > +    case b1000:
> > > +      Description = "FEAT_PMUv3p8 implemented.";
> > > +      break;
> > > +    case b1111:
> > > +      Description = "IMPLEMENTATION DEFINED form of performance monitors supported.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "15:12";
> > > +  Value = (Aa64Dfr0 >> 12) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "reserved";
> > > +      break;
> > > +    default:
> > > +      Description = "Number of breakpoints, minus 1.";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 19:16 reserved
> > > +
> > > +  Bits  = "23:20";
> > > +  Value = (Aa64Dfr0 >> 20) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "reserved";
> > > +      break;
> > > +    default:
> > > +      Description = "Number of watchpoints, minus 1.";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 27:24 reserved
> > > +
> > > +  Bits  = "31:28";
> > > +  Value = (Aa64Dfr0 >> 28) & 0xf;
> > > +  switch (Value) {
> > > +    default:
> > > +      Description = "Number of breakpoints that are context-aware, minus 1.";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "35:32";
> > > +  Value = (Aa64Dfr0 >> 32) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_SPE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_SPE implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_SPEv1p1 implemented.";
> > > +      break;
> > > +    case b0011:
> > > +      Description = "FEAT_SPEv1p2 implemented.";
> > > +      break;
> > > +    case b0100:
> > > +      Description = "FEAT_SPEv1p3 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "39:36";
> > > +  Value = (Aa64Dfr0 >> 36) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_DoubleLock implemented.";
> > > +      break;
> > > +    case b1111:
> > > +      Description = "FEAT_DoubleLock not implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "43:40";
> > > +  Value = (Aa64Dfr0 >> 40) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TRF not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TRF implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "47:44";
> > > +  Value = (Aa64Dfr0 >> 44) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_TRBE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_TRBE implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "51:48";
> > > +  Value = (Aa64Dfr0 >> 48) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_MTPMU not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_MTPMU and FEAT_PMUv3 implemented.";
> > > +      break;
> > > +    case b1111:
> > > +      Description = "FEAT_MTPMU not implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  Bits  = "55:52";
> > > +  Value = (Aa64Dfr0 >> 52) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "FEAT_BRBE not implemented.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_BRBE implemented.";
> > > +      break;
> > > +    case b0010:
> > > +      Description = "FEAT_BRBEv1p1 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +
> > > +  // 59:56 reserved
> > > +
> > > +  Bits  = "63:60";
> > > +  Value = (Aa64Dfr0 >> 60) & 0xf;
> > > +  switch (Value) {
> > > +    case b0000:
> > > +      Description = "Setting MDCR_EL2.HPMN to zero has CONSTRAINED UNPREDICTABLE behavior.";
> > > +      break;
> > > +    case b0001:
> > > +      Description = "FEAT_HPMN0 implemented.";
> > > +      break;
> > > +    default:
> > > +      Description = "unknown";
> > > +      break;
> > > +  }
> > > +
> > > +  PrintValues (RegName, Bits, Value, Description);
> > > +}
> > > +
> > > +EFI_STATUS
> > > +EFIAPI
> > > +UefiMain (
> > > +  IN EFI_HANDLE        ImageHandle,
> > > +  IN EFI_SYSTEM_TABLE  *SystemTable
> > > +  )
> > > +{
> > > +  UINT64  Aa64Dfr0;
> > > +  UINT64  Aa64Isar0;
> > > +  UINT64  Aa64Isar1;
> > > +  UINT64  Aa64Isar2;
> > > +  UINT64  Aa64Mmfr0;
> > > +  UINT64  Aa64Mmfr1;
> > > +  UINT64  Aa64Mmfr2;
> > > +  UINT64  Aa64Pfr0;
> > > +  UINT64  Aa64Pfr1;
> > > +
> > > +  Aa64Dfr0  = ArmReadIdAA64Dfr0 ();
> > > +  Aa64Isar0 = ArmReadIdAA64Isar0 ();
> > > +  Aa64Isar1 = ArmReadIdAA64Isar1 ();
> > > +  Aa64Isar2 = ArmReadIdAA64Isar2 ();
> > > +  Aa64Mmfr0 = ArmReadIdAA64Mmfr0 ();
> > > +  Aa64Mmfr1 = ArmReadIdAA64Mmfr1 ();
> > > +  Aa64Mmfr2 = ArmReadIdAA64Mmfr2 ();
> > > +  Aa64Pfr0  = ArmReadIdAA64Pfr0 ();
> > > +  Aa64Pfr1  = ArmReadIdAA64Pfr1 ();
> > > +
> > > +  AsciiPrint ("ID_AA64MMFR0_EL1 = 0x%016lx\n", Aa64Mmfr0);
> > > +  AsciiPrint ("ID_AA64MMFR1_EL1 = 0x%016lx\n", Aa64Mmfr1);
> > > +  AsciiPrint ("ID_AA64MMFR2_EL1 = 0x%016lx\n", Aa64Mmfr2);
> > > +  AsciiPrint ("ID_AA64PFR0_EL1  = 0x%016lx\n", Aa64Pfr0);
> > > +  AsciiPrint ("ID_AA64PFR1_EL1  = 0x%016lx\n", Aa64Pfr1);
> > > +  AsciiPrint ("ID_AA64ISAR0_EL1 = 0x%016lx\n", Aa64Isar0);
> > > +  AsciiPrint ("ID_AA64ISAR1_EL1 = 0x%016lx\n", Aa64Isar1);
> > > +  AsciiPrint ("ID_AA64ISAR2_EL1 = 0x%016lx\n", Aa64Isar2);
> > > +  AsciiPrint ("ID_AA64DFR0_EL1  = 0x%016lx\n", Aa64Dfr0);
> > > +
> > > +  AsciiPrint ("\n");
> > > +  PrintText ("Register", "Bits", "Value", "Feature");
> > > +  PrintSpacer ();
> > > +
> > > +  HandleAa64Mmfr0 (Aa64Mmfr0);
> > > +  PrintSpacer ();
> > > +  HandleAa64Mmfr1 (Aa64Mmfr1, Aa64Pfr0);
> > > +  PrintSpacer ();
> > > +  HandleAa64Mmfr2 (Aa64Mmfr2);
> > > +
> > > +  PrintSpacer ();
> > > +  HandleAa64Pfr0 (Aa64Pfr0, Aa64Pfr1);
> > > +  PrintSpacer ();
> > > +  HandleAa64Pfr1 (Aa64Pfr1);
> > > +
> > > +  PrintSpacer ();
> > > +  HandleAa64Isar0 (Aa64Isar0);
> > > +  PrintSpacer ();
> > > +  HandleAa64Isar1 (Aa64Isar1);
> > > +  PrintSpacer ();
> > > +  HandleAa64Isar2 (Aa64Isar2);
> > > +
> > > +  PrintSpacer ();
> > > +  HandleAa64Dfr0 (Aa64Dfr0);
> > > +
> > > +  return EFI_SUCCESS;
> > > +}
> > > -- 
> > > 2.40.0
> > > 
> > 
> > 
> > 
> > 


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