[edk2-devel] [PATCH v5 2/2] add ArmCpuInfo EFI application
Leif Lindholm
quic_llindhol at quicinc.com
Thu Apr 20 12:43:47 UTC 2023
On Fri, Apr 07, 2023 at 17:29:57 +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>
> ---
> ArmPkg/ArmPkg.dsc | 1 +
> ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf | 38 +
> ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c | 2319 ++++++++++++++++++
> 3 files changed, 2358 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..c6f634cd01b7
> --- /dev/null
> +++ b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf
> @@ -0,0 +1,38 @@
> +## @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
> +
> +#
> +# This flag specifies whether HII resource section is generated into PE image.
> +#
> + UEFI_HII_RESOURCE_SECTION = TRUE
The above stanza, and its comment, can be dropped.
This relates to native language support, which there isn't any in this app.
> +
> +[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..2fc12059f727
> --- /dev/null
> +++ b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
> @@ -0,0 +1,2319 @@
> +/** @file
> +
> + Copyright (c) 2023 Marcin Juszkiewicz
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> + **/
> +
> +#include <Library/UefiLib.h>
> +#include <Library/ArmLib/AArch64/AArch64Lib.h>
> +
> +VOID
> +PrintText (
> + CONST CHAR8 *field,
For coding style, name should be "*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,
"*Field"
> + CONST CHAR8 *Bits,
> + CONST UINT8 Value,
> + CONST CHAR8 *Description
> + )
> +{
> + STATIC CONST CHAR8 binaries[][5] = {
Could I propose renaming "binaries" to "Nibbles", since this is an
array holding string values for all possible nibbles?
> + "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111",
> + "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"
> + };
> +
> + AsciiPrint (" %-16a | %5a | %5a | %a\n", field, Bits, binaries[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 0b0000:
I agree with Pedro's concern w.r.t. binary literals being a GCC
extension. But I also think this is the most appropriate
representation since this is how it's documented in the ARM ARM.
A bit hacky, but could we do
enum {
b0000,
b0001,
...
b1111
};
and then use those instead?
(you can build with -pedantic to verify you catch them all)
> + Description = "32 Bits (4GB) of physical address range supported.";
> + break;
> + case 0b0001:
> + Description = "36 Bits (64GB) of physical address range supported.";
> + break;
> + case 0b0010:
> + Description = "40 Bits (1TB) of physical address range supported.";
> + break;
> + case 0b0011:
> + Description = "42 Bits (4TB) of physical address range supported.";
> + break;
> + case 0b0100:
> + Description = "44 Bits (16TB) of physical address range supported.";
> + break;
> + case 0b0101:
> + Description = "48 Bits (256TB) of physical address range supported.";
> + break;
> + case 0b0110:
> + Description = "52 Bits (4PB) of physical address range supported.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> + if (Value == 0b0110) {
> + PrintText ("", "", "", "FEAT_LPA implemented.");
> + }
> +
> + Bits = "7:4 ";
> + Value = (Aa64Mmfr0 >> 4) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "ASID: 8 Bits";
> + break;
> + case 0b0010:
> + Description = "ASID: 16 Bits";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "11:8 ";
> + Value = (Aa64Mmfr0 >> 8) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "No mixed-endian support.";
> + break;
> + case 0b0001:
> + Description = "Mixed-endian support.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + // only valid for BigEnd != 0b0000
Could we possibly reword as
// If mixed-endian support is present, check whether supported at EL0
?
> + if (((Aa64Mmfr0 >> 8) & 0xf) != 0b0000 ) {
> + if (((Aa64Mmfr0 >> 16) & 0xf) == 0b0000 ) {
> + PrintValues ("ID_AA64MMFR0", "19:16", 0b0000, "No mixed-endian support at EL0.");
> + }
> +
> + if (((Aa64Mmfr0 >> 16) & 0xf) == 0b0001 ) {
> + PrintValues ("ID_AA64MMFR0", "19:16", 0b0001, "Mixed-endian support at EL0.");
> + }
> + }
> +
> + Bits = "15:12";
> + Value = (Aa64Mmfr0 >> 12) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "No support for a distinction between Secure and Non-Secure Memory.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = " 4KB granule supported.";
> + break;
> + case 0b1111:
> + Description = " 4KB granule not supported.";
> + break;
> + case 0b0001: // add FEAT_LPA2 check
That's sounds like a TODO. And we don't want TODOs in code.
Can we either drop the comment, add the check, or skip the test?
(That is my order of preference - we shouldn't need to be verifying
architectural compliance.)
> + 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 0b0001:
> + Description = " 4KB granule not supported at stage 2.";
> + break;
> + case 0b0010:
> + Description = " 4KB granule supported at stage 2.";
> + break;
> + case 0b0011:
> + 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 0b0000:
> + Description = "16KB granule not supported.";
> + break;
> + case 0b0001:
> + Description = "16KB granule supported.";
> + break;
> + case 0b0010: // add FEAT_LPA2 check
Same comment as for 4k.
> + 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 0b0001:
> + Description = "16KB granule not supported at stage 2.";
> + break;
> + case 0b0010:
> + Description = "16KB granule supported at stage 2.";
> + break;
> + case 0b0011:
> + 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 0b0000:
> + Description = "64KB granule supported.";
> + break;
> + case 0b1111:
> + 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 0b0001:
> + Description = "64KB granule not supported at stage 2.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "FEAT_ExS not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "FEAT_FGT not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_FGT implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "63:60";
> + Value = (Aa64Mmfr0 >> 60) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_ECV not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_ECV implemented.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "FEAT_HAFDBS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_HAFDBS implemented without dirty status support.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "FEAT_VMID16 not implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_VMID16 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "11:8 ";
> + Value = (Aa64Mmfr1 >> 8) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_VHE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_VHE implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "15:12";
> + Value = (Aa64Mmfr1 >> 12) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_HPDS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_HPDS implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_HPDS2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "19:16";
> + Value = (Aa64Mmfr1 >> 16) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LOR not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_LOR implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "23:20";
> + Value = (Aa64Mmfr1 >> 20) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_PAN not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PAN implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_PAN2 implemented.";
> + break;
> + case 0b0011:
> + Description = "FEAT_PAN3 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + // when FEAT_RAS implemented
> + if ((((Aa64Pfr0 >> 28) & 0xf) == 0b0001) ||
> + (((Aa64Pfr0 >> 28) & 0xf) == 0b0010))
> + {
> + if (((Aa64Mmfr1 >> 24) & 0xf) == 0b0000 ) {
> + PrintValues ("ID_AA64MMFR1", "27:24", 0b0000, "The PE never generates an SError interrupt due to");
> + PrintText ("", "", "", "an External abort on a speculative read.");
> + }
> +
> + if (((Aa64Mmfr1 >> 24) & 0xf) == 0b0001 ) {
> + PrintValues ("ID_AA64MMFR1", "27:24", 0b0001, "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 0b0000:
> + Description = "FEAT_XNX not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_XNX implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "35:32";
> + Value = (Aa64Mmfr1 >> 32) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_TWED not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TWED implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "39:36";
> + Value = (Aa64Mmfr1 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_ETS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_ETS implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "43:40";
> + Value = (Aa64Mmfr1 >> 40) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_HCX not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_HCX implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "47:44";
> + Value = (Aa64Mmfr1 >> 44) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_AFP not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_AFP implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "51:48";
> + Value = (Aa64Mmfr1 >> 48) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_nTLBPA not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_nTLBPA implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "55:52";
> + Value = (Aa64Mmfr1 >> 52) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_TIDCP1 not implemented";
> + break;
> + case 0b0001:
> + Description = "FEAT_TIDCP1 implemented";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "59:56";
> + Value = (Aa64Mmfr1 >> 56) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_CMOW not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "FEAT_TTCNP not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TTCNP implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "7:4 ";
> + Value = (Aa64Mmfr2 >> 4) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_UAO not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_UAO implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "11:8 ";
> + Value = (Aa64Mmfr2 >> 8) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LSMAOC not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_LSMAOC implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "15:12";
> + Value = (Aa64Mmfr2 >> 12) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_IESB not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_IESB implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "19:16";
> + Value = (Aa64Mmfr2 >> 16) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LVA not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_LVA implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "23:20";
> + Value = (Aa64Mmfr2 >> 20) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_CCIDX not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_CCIDX implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "27:24";
> + Value = (Aa64Mmfr2 >> 24) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_NV not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_NV implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_NV2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "31:28";
> + Value = (Aa64Mmfr2 >> 28) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_TTST not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TTST implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "35:32";
> + Value = (Aa64Mmfr2 >> 32) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LSE2 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_LSE2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "39:36";
> + Value = (Aa64Mmfr2 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_IDST not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_IDST implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "43:40";
> + Value = (Aa64Mmfr2 >> 40) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_S2FWB not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "FEAT_TTL not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TTL implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "55:52";
> + Value = (Aa64Mmfr2 >> 52) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_BBM: Level 0 support for changing block size is supported.";
> + break;
> + case 0b0001:
> + Description = "FEAT_BBM: Level 1 support for changing block size is supported.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "FEAT_EVT not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_EVT: HCR_EL2.{TOCU, TICAB, TID4} traps are supported.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "FEAT_E0PD not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0001:
> + Description = "EL0 in AArch64 only";
> + break;
> + case 0b0010:
> + 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 0b0001:
> + Description = "EL1 in AArch64 only";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "EL2 not implemented.";
> + break;
> + case 0b0001:
> + Description = "EL2 in AArch64 only";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "EL3 not implemented.";
> + break;
> + case 0b0001:
> + Description = "EL3 in AArch64 only";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "Floating-point implemented.";
> + break;
> + case 0b0001:
> + Description = "Floating-point with half-precision support (FEAT_FP16).";
> + break;
> + case 0b1111:
> + 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 0b0000:
> + Description = "Advanced SIMD implemented.";
> + break;
> + case 0b0001:
> + Description = "Advanced SIMD with half precision support (FEAT_FP16).";
> + break;
> + case 0b1111:
> + 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 0b0000:
> + Description = "System registers of GIC CPU not implemented.";
> + break;
> + case 0b0001:
> + Description = "System registers to versions 3.0/4.0 of GIC CPU implemented.";
> + break;
> + case 0b0011:
> + 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 0b0000:
> + Description = "FEAT_RAS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_RAS implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_RASv1p1 implemented.";
> + // 0b0010 FEAT_RASv1p1 implemented and, if EL3 is implemented, FEAT_DoubleFault implemented.
> + if ((((Aa64Pfr0 >> 12) & 0xf) == 0b0001) ||
> + (((Aa64Pfr0 >> 12) & 0xf) == 0b0010))
> + {
> + Description = "FEAT_RASv1p1 implemented. FEAT_DoubleFault implemented.";
> + }
> +
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "35:32";
> + Value = (Aa64Pfr0 >> 32) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SVE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SVE implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "39:36";
> + Value = (Aa64Pfr0 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "Secure EL2 not implemented.";
> + break;
> + case 0b0001:
> + Description = "Secure EL2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "43:40";
> + Value = (Aa64Pfr0 >> 40) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + if (((Aa64Pfr1 >> 16) & 0xf) == 0b0000 ) {
> + Description = "FEAT_MPAM not implemented.";
> + }
> +
> + if (((Aa64Pfr1 >> 16) & 0xf) == 0b0001 ) {
> + Description = "FEAT_MPAM v0.1 implemented.";
> + }
> +
> + break;
> + case 0b0001:
> + if (((Aa64Pfr1 >> 16) & 0xf) == 0b0000 ) {
> + Description = "FEAT_MPAM v1.0 implemented.";
> + }
> +
> + if (((Aa64Pfr1 >> 16) & 0xf) == 0b0001 ) {
> + 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 0b0000:
> + Description = "FEAT_AMU not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_AMUv1 implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_AMUv1p1 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "51:48";
> + Value = (Aa64Pfr0 >> 48) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_DIT not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_DIT implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "55:52";
> + Value = (Aa64Pfr0 >> 52) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_RME not implemented";
> + break;
> + case 0b0001:
> + Description = "FEAT_RME implemented";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "59:56";
> + Value = (Aa64Pfr0 >> 56) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "no info is FEAT_CSV2 implemented.";
Consider rewording.
Is the text from the ARM ARM too long?
"The implementation does not disclose whether FEAT_CSV2 is
implemented."
if so, maybe
"Not disclosed whether FEAT_CSV2 is implemented."?
> + break;
> + case 0b0001:
> + Description = "FEAT_CSV2 implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_CSV2_2 implemented.";
> + break;
> + case 0b0011:
> + Description = "FEAT_CSV2_3 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> + if (Value == 0b0001) {
> + if (((Aa64Pfr1 >> 32) & 0xf) == 0b0001 ) {
> + PrintValues ("ID_AA64PRF1", "35:32", 0b0001, "FEAT_CSV2_1p1 implemented.");
> + }
> +
> + if (((Aa64Pfr1 >> 32) & 0xf) == 0b0010 ) {
> + PrintValues ("ID_AA64PRF1", "35:32", 0b0010, "FEAT_CSV2_1p2 implemented.");
> + }
> + }
> +
> + Bits = "63:60";
> + Value = (Aa64Pfr0 >> 60) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_CSV3 not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "FEAT_BTI not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_BTI implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "7:4 ";
> + Value = (Aa64Pfr1 >> 4) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SSBS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SSBS implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_SSBS2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "11:8 ";
> + Value = (Aa64Pfr1 >> 8) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_MTE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_MTE implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_MTE2 implemented.";
> + break;
> + case 0b0011:
> + 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 0b0000:
> + Description = "FEAT_SME not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SME implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "31:28";
> + Value = (Aa64Pfr1 >> 28) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_RNG_TRAP not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_RNG_TRAP implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + // 35:32 is CSV2_frac
That's a TODO.
> +
> + Bits = "39:36";
> + Value = (Aa64Pfr1 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_NMI not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "FEAT_AES, FEAT_PMULL not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_AES implemented.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "FEAT_SHA1 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SHA1 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "15:12";
> + Value = (Aa64Isar0 >> 12) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SHA256, FEAT_SHA512 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SHA256 implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_SHA512 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "19:16";
> + Value = (Aa64Isar0 >> 16) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "CRC32 not implemented.";
> + break;
> + case 0b0001:
> + Description = "CRC32 instructions implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "23:20";
> + Value = (Aa64Isar0 >> 20) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LSE not implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_LSE implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "27:24";
> + Value = (Aa64Isar0 >> 24) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "TME instructions not implemented.";
> + break;
> + case 0b0001:
> + Description = "TME instructions implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "31:28";
> + Value = (Aa64Isar0 >> 28) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_RDM not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_RDM implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "35:32";
> + Value = (Aa64Isar0 >> 32) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SHA3 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SHA3 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "39:36";
> + Value = (Aa64Isar0 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SM3 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SM3 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "43:40";
> + Value = (Aa64Isar0 >> 40) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SM4 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SM4 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "47:44";
> + Value = (Aa64Isar0 >> 44) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_DotProd not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_DotProd implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "51:48";
> + Value = (Aa64Isar0 >> 48) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_FHM not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_FHM implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "55:52";
> + Value = (Aa64Isar0 >> 52) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_FlagM/FEAT_FlagM2 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_FlagM implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_FlagM2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "59:56";
> + Value = (Aa64Isar0 >> 56) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_TLBIOS/FEAT_TLBIRANGE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TLBIOS implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_TLBIRANGE implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "63:60";
> + Value = (Aa64Isar0 >> 60) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_RNG not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "DC CVAP not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_DPB implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_DPB2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "7:4 ";
> + Value = (Aa64Isar1 >> 4) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "Address Authentication (APA) not implemented.";
Double space before '('. (drop one?)
Hmm, I see this pattern repeated - is it intentional?
> + break;
> + case 0b0001:
> + Description = "FEAT_PAuth implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_EPAC implemented.";
> + break;
> + case 0b0011:
> + Description = "FEAT_PAuth2 implemented.";
> + break;
> + case 0b0100:
> + Description = "FEAT_FPAC implemented.";
> + break;
> + case 0b0101:
> + 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 0b0000:
> + Description = "Address Authentication (API) not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PAuth implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_EPAC implemented.";
> + break;
> + case 0b0011:
> + Description = "FEAT_PAuth2 implemented.";
> + break;
> + case 0b0100:
> + Description = "FEAT_FPAC implemented.";
> + break;
> + case 0b0101:
> + 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 0b0000:
> + Description = "FEAT_JSCVT not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_JSCVT implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "19:16";
> + Value = (Aa64Isar1 >> 16) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_FCMA not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_FCMA implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "23:20";
> + Value = (Aa64Isar1 >> 20) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LRCPC (2) not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_LRCPC implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_LRCPC2 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "27:24";
> + Value = (Aa64Isar1 >> 24) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_PACQARMA5 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PACQARMA5 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "31:28";
> + Value = (Aa64Isar1 >> 28) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_PACIMP not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PACIMP implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "35:32";
> + Value = (Aa64Isar1 >> 32) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_FRINTTS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_FRINTTS implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "39:36";
> + Value = (Aa64Isar1 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SB not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SB implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "43:40";
> + Value = (Aa64Isar1 >> 40) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_SPECRES not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SPECRES implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "47:44";
> + Value = (Aa64Isar1 >> 44) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_BF16 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_BF16 implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_EBF16 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "51:48";
> + Value = (Aa64Isar1 >> 48) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_DGH not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_DGH implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "55:52";
> + Value = (Aa64Isar1 >> 52) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_I8MM not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_I8MM implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "59:56";
> + Value = (Aa64Isar1 >> 56) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_XS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_XS implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "63:60";
> + Value = (Aa64Isar1 >> 60) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_LS64 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_LS64 implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_LS64_V implemented.";
> + break;
> + case 0b0011:
> + 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 0b0000:
> + Description = "FEAT_WFxT not implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_WFxT implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "7:4 ";
> + Value = (Aa64Isar2 >> 4) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_RPRES not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_RPRES implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "11:8 ";
> + Value = (Aa64Isar2 >> 8) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_PACQARMA3 not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PACQARMA3 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "15:12";
> + Value = (Aa64Isar2 >> 12) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "Address Authentication (APA3) not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PAuth implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_EPAC implemented.";
> + break;
> + case 0b0011:
> + Description = "FEAT_PAuth2 implemented.";
> + break;
> + case 0b0100:
> + Description = "FEAT_FPAC implemented.";
> + break;
> + case 0b0101:
> + Description = "FEAT_FPACCOMBINE implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "19:16";
> + Value = (Aa64Isar2 >> 16) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_MOPS not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_MOPS implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "23:20";
> + Value = (Aa64Isar2 >> 20) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_HBC not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_HBC implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "27:24";
> + Value = (Aa64Isar2 >> 24) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_CONSTPACFIELD not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0110:
> + Description = "Armv8 debug architecture";
> + break;
> + case 0b0111:
> + Description = "Armv8 debug architecture with VHE";
> + break;
> + case 0b1000:
> + Description = "FEAT_Debugv8p2 implemented.";
> + break;
> + case 0b1001:
> + Description = "FEAT_Debugv8p4 implemented.";
> + break;
> + case 0b1010:
> + Description = "FEAT_Debugv8p8 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "7:4 ";
> + Value = (Aa64Dfr0 >> 4) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "Trace unit System registers not implemented.";
> + break;
> + case 0b0001:
> + 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 0b0000:
> + Description = "Performance Monitors Extension not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_PMUv3 implemented.";
> + break;
> + case 0b0100:
> + Description = "FEAT_PMUv3p1 implemented.";
> + break;
> + case 0b0101:
> + Description = "FEAT_PMUv3p4 implemented.";
> + break;
> + case 0b0110:
> + Description = "FEAT_PMUv3p5 implemented.";
> + break;
> + case 0b0111:
> + Description = "FEAT_PMUv3p7 implemented.";
> + break;
> + case 0b1000:
> + Description = "FEAT_PMUv3p8 implemented.";
> + break;
> + case 0b1111:
> + 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 0b0000:
> + 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 0b0000:
> + 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 0b0000:
> + Description = "FEAT_SPE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_SPE implemented.";
> + break;
> + case 0b0010:
> + Description = "FEAT_SPEv1p1 implemented.";
> + break;
> + case 0b0011:
> + Description = "FEAT_SPEv1p2 implemented.";
> + break;
> + case 0b0100:
> + Description = "FEAT_SPEv1p3 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "39:36";
> + Value = (Aa64Dfr0 >> 36) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_DoubleLock implemented.";
> + break;
> + case 0b1111:
> + 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 0b0000:
> + Description = "FEAT_TRF not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TRF implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "47:44";
> + Value = (Aa64Dfr0 >> 44) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_TRBE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_TRBE implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +
> + Bits = "51:48";
> + Value = (Aa64Dfr0 >> 48) & 0xf;
> + switch (Value) {
> + case 0b0000:
> + Description = "FEAT_MTPMU not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_MTPMU and FEAT_PMUv3 implemented.";
> + break;
> + case 0b1111:
> + 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 0b0000:
> + Description = "FEAT_BRBE not implemented.";
> + break;
> + case 0b0001:
> + Description = "FEAT_BRBE implemented.";
> + break;
> + case 0b0010:
> + 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 0b0000:
> + Description = "Setting MDCR_EL2.HPMN to zero has CONSTRAINED UNPREDICTABLE behavior.";
> + break;
> + case 0b0001:
> + Description = "FEAT_HPMN0 implemented.";
> + break;
> + default:
> + Description = "unknown";
> + break;
> + }
> +
> + PrintValues (RegName, Bits, Value, Description);
> +}
> +
> +EFI_STATUS
> +EFIAPI
> +UefiMain (
Stray space before '(' here too. Is it an editor setting?
/
Leif
> + 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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