App goes through ID_AA64*_EL1 system registers and decode their values.
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiew...@linaro.org>
---
ArmPkg/ArmPkg.dsc | 1 +
ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.inf | 38 +
ArmPkg/Application/ArmCpuInfo/readargs.h | 12 +
ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c | 2317 ++++++++++++++++++++
ArmPkg/Application/ArmCpuInfo/readregs.s | 49 +
5 files changed, 2417 insertions(+)
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..158f86a4740c
--- /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
+
+[Sources]
+ ArmCpuInfo.c
+ readregs.s
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+ UefiApplicationEntryPoint
+ UefiLib
diff --git a/ArmPkg/Application/ArmCpuInfo/readargs.h
b/ArmPkg/Application/ArmCpuInfo/readargs.h
new file mode 100644
index 000000000000..eaa52cf16145
--- /dev/null
+++ b/ArmPkg/Application/ArmCpuInfo/readargs.h
@@ -0,0 +1,12 @@
+UINT64 read_aa64pfr0_el1(void);
+UINT64 read_aa64pfr1_el1(void);
+UINT64 read_aa64dfr0_el1(void);
+UINT64 read_aa64dfr1_el1(void);
+UINT64 read_aa64isar0_el1(void);
+UINT64 read_aa64isar1_el1(void);
+UINT64 read_aa64isar2_el1(void);
+UINT64 read_aa64mmfr0_el1(void);
+UINT64 read_aa64mmfr1_el1(void);
+UINT64 read_aa64mmfr2_el1(void);
+UINT64 read_aa64smfr0_el1(void);
+UINT64 read_aa64zfr0_el1(void);
diff --git a/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
new file mode 100644
index 000000000000..6c31ad4dbcb9
--- /dev/null
+++ b/ArmPkg/Application/ArmCpuInfo/ArmCpuInfo.c
@@ -0,0 +1,2317 @@
+/** @file
+
+ Copyright (c) 2023 Marcin Juszkiewicz
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ **/
+
+#include <Library/UefiLib.h>
+#include "readargs.h"
+
+void
+print_text (
+ const char *field,
+ const char *bits,
+ const char *value,
+ const char *description
+ )
+{
+ AsciiPrint (" %-16a | %5a | %5a | %a\n", field, bits, value, description);
+}
+
+void
+print_values (
+ const char *field,
+ const char *bits,
+ const int value,
+ const char *description
+ )
+{
+ STATIC CONST CHAR8 binaries[][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, binaries[value & 0xf],
description);
+}
+
+void
+print_spacer (
+ void
+ )
+{
+ AsciiPrint
("------------------|-------|-------|----------------------------------------------\n");
+}
+
+void
+handle_aa64mmfr0_el1 (
+ const UINT64 aa64mmfr0_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64MMFR0_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = aa64mmfr0_el1 & 0xf;
+ switch (value) {
+ case 0b0000:
+ 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;
+ }
+
+ print_values (RegName, bits, value, description);
+ if (value == 0b0110) {
+ print_text ("", "", "", "FEAT_LPA implemented.");
+ }
+
+ bits = "7:4 ";
+ value = (aa64mmfr0_el1 >> 4) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "ASID: 8 bits";
+ break;
+ case 0b0010:
+ description = "ASID: 16 bits";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64mmfr0_el1 >> 8) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "No mixed-endian support.";
+ break;
+ case 0b0001:
+ description = "Mixed-endian support.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // only valid for BigEnd != 0b0000
+ if (((aa64mmfr0_el1 >> 8) & 0xf) != 0b0000 ) {
+ if (((aa64mmfr0_el1 >> 16) & 0xf) == 0b0000 ) {
+ print_values ("ID_AA64MMFR0_EL1", "19:16", 0b0000, "No mixed-endian
support at EL0.");
+ }
+
+ if (((aa64mmfr0_el1 >> 16) & 0xf) == 0b0001 ) {
+ print_values ("ID_AA64MMFR0_EL1", "19:16", 0b0001, "Mixed-endian support
at EL0.");
+ }
+ }
+
+ bits = "15:12";
+ value = (aa64mmfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "31:28";
+ value = (aa64mmfr0_el1 >> 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
+ description = " 4KB granule supported for 52-bit address.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64mmfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64mmfr0_el1 >> 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
+ description = "16KB granule supported for 52-bit address.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64mmfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "27:24";
+ value = (aa64mmfr0_el1 >> 24) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "64KB granule supported.";
+ break;
+ case 0b1111:
+ description = "64KB granule not supported.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64mmfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "47:44";
+ value = (aa64mmfr0_el1 >> 44) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_ExS not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_ExS implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 55:48 reserved
+
+ bits = "59:56";
+ value = (aa64mmfr0_el1 >> 56) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_FGT not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_FGT implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "63:60";
+ value = (aa64mmfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+}
+
+void
+handle_aa64mmfr1_el1 (
+ const UINT64 aa64mmfr1_el1,
+ const UINT64 aa64pfr0_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64MMFR1_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = aa64mmfr1_el1 & 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64mmfr1_el1 >> 4) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_VMID16 not implemented.";
+ break;
+ case 0b0010:
+ description = "FEAT_VMID16 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64mmfr1_el1 >> 8) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_VHE not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_VHE implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "15:12";
+ value = (aa64mmfr1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "19:16";
+ value = (aa64mmfr1_el1 >> 16) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_LOR not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_LOR implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64mmfr1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // when FEAT_RAS implemented
+ if ((((aa64pfr0_el1 >> 28) & 0xf) == 0b0001) ||
+ (((aa64pfr0_el1 >> 28) & 0xf) == 0b0010))
+ {
+ if (((aa64mmfr1_el1 >> 24) & 0xf) == 0b0000 ) {
+ print_values ("ID_AA64MMFR1_EL1", "27:24", 0b0000, "The PE never
generates an SError interrupt due to");
+ print_text ("", "", "", "an External abort on a speculative read.");
+ }
+
+ if (((aa64mmfr1_el1 >> 24) & 0xf) == 0b0001 ) {
+ print_values ("ID_AA64MMFR1_EL1", "27:24", 0b0001, "The PE might
generate an SError interrupt due to");
+ print_text ("", "", "", "an External abort on a speculative read.");
+ }
+ }
+
+ bits = "31:28";
+ value = (aa64mmfr1_el1 >> 28) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_XNX not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_XNX implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64mmfr1_el1 >> 32) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TWED not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_TWED implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64mmfr1_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_ETS not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_ETS implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64mmfr1_el1 >> 40) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_HCX not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_HCX implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "47:44";
+ value = (aa64mmfr1_el1 >> 44) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_AFP not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_AFP implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "51:48";
+ value = (aa64mmfr1_el1 >> 48) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_nTLBPA not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_nTLBPA implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "55:52";
+ value = (aa64mmfr1_el1 >> 52) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TIDCP1 not implemented";
+ break;
+ case 0b0001:
+ description = "FEAT_TIDCP1 implemented";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "59:56";
+ value = (aa64mmfr1_el1 >> 56) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_CMOW not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_CMOW implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 63:60 reserved
+}
+
+void
+handle_aa64mmfr2_el1 (
+ const UINT64 aa64mmfr2_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64MMFR2_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = (aa64mmfr2_el1) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TTCNP not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_TTCNP implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64mmfr2_el1 >> 4) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_UAO not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_UAO implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64mmfr2_el1 >> 8) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_LSMAOC not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_LSMAOC implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "15:12";
+ value = (aa64mmfr2_el1 >> 12) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_IESB not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_IESB implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "19:16";
+ value = (aa64mmfr2_el1 >> 16) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_LVA not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_LVA implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64mmfr2_el1 >> 20) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_CCIDX not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_CCIDX implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "27:24";
+ value = (aa64mmfr2_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "31:28";
+ value = (aa64mmfr2_el1 >> 28) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TTST not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_TTST implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64mmfr2_el1 >> 32) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_LSE2 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_LSE2 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64mmfr2_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_IDST not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_IDST implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64mmfr2_el1 >> 40) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_S2FWB not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_S2FWB implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 47:44 reserved
+
+ bits = "51:48";
+ value = (aa64mmfr2_el1 >> 48) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TTL not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_TTL implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "55:52";
+ value = (aa64mmfr2_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "59:56";
+ value = (aa64mmfr2_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "63:60";
+ value = (aa64mmfr2_el1 >> 60) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_E0PD not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_E0PD implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+}
+
+void
+handle_aa64pfr0_el1 (
+ const UINT64 aa64pfr0_el1,
+ const UINT64 aa64pfr1_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64PFR0_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = (aa64pfr0_el1) & 0xf;
+ switch (value) {
+ case 0b0001:
+ description = "EL0 in AArch64 only";
+ break;
+ case 0b0010:
+ description = "EL0 in AArch64 and AArch32";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "15:12";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "19:16";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "27:24";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "31:28";
+ value = (aa64pfr0_el1 >> 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_el1 >> 12) & 0xf) == 0b0001) ||
+ (((aa64pfr0_el1 >> 12) & 0xf) == 0b0010))
+ {
+ description = "FEAT_RASv1p1 implemented. FEAT_DoubleFault
implemented.";
+ }
+
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64pfr0_el1 >> 32) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SVE not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SVE implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64pfr0_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "Secure EL2 not implemented.";
+ break;
+ case 0b0001:
+ description = "Secure EL2 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64pfr0_el1 >> 40) & 0xf;
+ switch (value) {
+ case 0b0000:
+ if (((aa64pfr1_el1 >> 16) & 0xf) == 0b0000 ) {
+ description = "FEAT_MPAM not implemented.";
+ }
+
+ if (((aa64pfr1_el1 >> 16) & 0xf) == 0b0001 ) {
+ description = "FEAT_MPAM v0.1 implemented.";
+ }
+
+ break;
+ case 0b0001:
+ if (((aa64pfr1_el1 >> 16) & 0xf) == 0b0000 ) {
+ description = "FEAT_MPAM v1.0 implemented.";
+ }
+
+ if (((aa64pfr1_el1 >> 16) & 0xf) == 0b0001 ) {
+ description = "FEAT_MPAM v1.1 implemented.";
+ }
+
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "47:44";
+ value = (aa64pfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "51:48";
+ value = (aa64pfr0_el1 >> 48) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_DIT not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_DIT implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "55:52";
+ value = (aa64pfr0_el1 >> 52) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_RME not implemented";
+ break;
+ case 0b0001:
+ description = "FEAT_RME implemented";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "59:56";
+ value = (aa64pfr0_el1 >> 56) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "no info is FEAT_CSV2 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;
+ }
+
+ print_values (RegName, bits, value, description);
+ if (value == 0b0001) {
+ if (((aa64pfr1_el1 >> 32) & 0xf) == 0b0001 ) {
+ print_values ("ID_AA64PRF1_EL1", "35:32", 0b0001, "FEAT_CSV2_1p1
implemented.");
+ }
+
+ if (((aa64pfr1_el1 >> 32) & 0xf) == 0b0010 ) {
+ print_values ("ID_AA64PRF1_EL1", "35:32", 0b0010, "FEAT_CSV2_1p2
implemented.");
+ }
+ }
+
+ bits = "63:60";
+ value = (aa64pfr0_el1 >> 60) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_CSV3 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_CSV3 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+}
+
+void
+handle_aa64pfr1_el1 (
+ const UINT64 aa64pfr1_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64PFR1_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = aa64pfr1_el1 & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_BTI not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_BTI implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64pfr1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64pfr1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 15:12 is RAS_frac
+ // 19:16 is MPAM_frac
+ // 23:20 is reserved
+
+ bits = "27:24";
+ value = (aa64pfr1_el1 >> 24) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SME not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SME implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "31:28";
+ value = (aa64pfr1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 35:32 is CSV2_frac
+
+ bits = "39:36";
+ value = (aa64pfr1_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_NMI not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_NMI implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 63:40 are reserved
+}
+
+void
+handle_aa64isar0_el1 (
+ const UINT64 aa64isar0_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64ISAR0_EL1";
+ char *description;
+ char *bits;
+
+ // 3:0 reserved
+
+ bits = "7:4 ";
+ value = (aa64isar0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64isar0_el1 >> 8) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SHA1 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SHA1 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "15:12";
+ value = (aa64isar0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "19:16";
+ value = (aa64isar0_el1 >> 16) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "CRC32 not implemented.";
+ break;
+ case 0b0001:
+ description = "CRC32 instructions implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64isar0_el1 >> 20) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_LSE not implemented.";
+ break;
+ case 0b0010:
+ description = "FEAT_LSE implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "27:24";
+ value = (aa64isar0_el1 >> 24) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "TME instructions not implemented.";
+ break;
+ case 0b0001:
+ description = "TME instructions implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "31:28";
+ value = (aa64isar0_el1 >> 28) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_RDM not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_RDM implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64isar0_el1 >> 32) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SHA3 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SHA3 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64isar0_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SM3 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SM3 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64isar0_el1 >> 40) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SM4 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SM4 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "47:44";
+ value = (aa64isar0_el1 >> 44) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_DotProd not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_DotProd implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "51:48";
+ value = (aa64isar0_el1 >> 48) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_FHM not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_FHM implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "55:52";
+ value = (aa64isar0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "59:56";
+ value = (aa64isar0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "63:60";
+ value = (aa64isar0_el1 >> 60) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_RNG not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_RNG implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+}
+
+void
+handle_aa64isar1_el1 (
+ const UINT64 aa64isar1_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64ISAR1_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = (aa64isar1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64isar1_el1 >> 4) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "Address Authentication (APA) 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;
+ }
+
+ print_values (RegName, bits, value, description);
+ if (value > 0) {
+ print_text ("", "", "", "FEAT_PACQARMA5 implemented.");
+ }
+
+ bits = "11:8 ";
+ value = (aa64isar1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+ if (value > 0) {
+ print_text ("", "", "", "FEAT_PACIMP implemented.");
+ }
+
+ bits = "15:12";
+ value = (aa64isar1_el1 >> 12) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_JSCVT not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_JSCVT implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "19:16";
+ value = (aa64isar1_el1 >> 16) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_FCMA not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_FCMA implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64isar1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "27:24";
+ value = (aa64isar1_el1 >> 24) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_PACQARMA5 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_PACQARMA5 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "31:28";
+ value = (aa64isar1_el1 >> 28) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_PACIMP not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_PACIMP implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64isar1_el1 >> 32) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_FRINTTS not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_FRINTTS implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64isar1_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SB not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SB implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64isar1_el1 >> 40) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_SPECRES not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_SPECRES implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "47:44";
+ value = (aa64isar1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "51:48";
+ value = (aa64isar1_el1 >> 48) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_DGH not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_DGH implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "55:52";
+ value = (aa64isar1_el1 >> 52) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_I8MM not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_I8MM implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "59:56";
+ value = (aa64isar1_el1 >> 56) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_XS not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_XS implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "63:60";
+ value = (aa64isar1_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+}
+
+void
+handle_aa64isar2_el1 (
+ const UINT64 aa64isar2_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64ISAR2_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = (aa64isar2_el1 >> 4) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_WFxT not implemented.";
+ break;
+ case 0b0010:
+ description = "FEAT_WFxT implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64isar2_el1 >> 4) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_RPRES not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_RPRES implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64isar2_el1 >> 8) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_PACQARMA3 not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_PACQARMA3 implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "15:12";
+ value = (aa64isar2_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "19:16";
+ value = (aa64isar2_el1 >> 16) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_MOPS not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_MOPS implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "23:20";
+ value = (aa64isar2_el1 >> 20) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_HBC not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_HBC implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "27:24";
+ value = (aa64isar2_el1 >> 24) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_CONSTPACFIELD not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_CONSTPACFIELD implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 63:28 reserved
+}
+
+void
+handle_aa64dfr0_el1 (
+ const UINT64 aa64dfr0_el1
+ )
+{
+ UINT64 value;
+ STATIC CONST CHAR8 RegName[] = "ID_AA64DFR0_EL1";
+ char *description;
+ char *bits;
+
+ bits = "3:0 ";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "7:4 ";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "11:8 ";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "15:12";
+ value = (aa64dfr0_el1 >> 12) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "reserved";
+ break;
+ default:
+ description = "Number of breakpoints, minus 1.";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 19:16 reserved
+
+ bits = "23:20";
+ value = (aa64dfr0_el1 >> 20) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "reserved";
+ break;
+ default:
+ description = "Number of watchpoints, minus 1.";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 27:24 reserved
+
+ bits = "31:28";
+ value = (aa64dfr0_el1 >> 28) & 0xf;
+ switch (value) {
+ default:
+ description = "Number of breakpoints that are context-aware, minus 1.";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "35:32";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "39:36";
+ value = (aa64dfr0_el1 >> 36) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_DoubleLock implemented.";
+ break;
+ case 0b1111:
+ description = "FEAT_DoubleLock not implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "43:40";
+ value = (aa64dfr0_el1 >> 40) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TRF not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_TRF implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "47:44";
+ value = (aa64dfr0_el1 >> 44) & 0xf;
+ switch (value) {
+ case 0b0000:
+ description = "FEAT_TRBE not implemented.";
+ break;
+ case 0b0001:
+ description = "FEAT_TRBE implemented.";
+ break;
+ default:
+ description = "unknown";
+ break;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "51:48";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ bits = "55:52";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+
+ // 59:56 reserved
+
+ bits = "63:60";
+ value = (aa64dfr0_el1 >> 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;
+ }
+
+ print_values (RegName, bits, value, description);
+}
+
+EFI_STATUS
+EFIAPI
+UefiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ UINT64 aa64dfr0_el1 = read_aa64dfr0_el1 ();
+ UINT64 aa64dfr1_el1 = read_aa64dfr1_el1 ();
+ UINT64 aa64isar0_el1 = read_aa64isar0_el1 ();
+ UINT64 aa64isar1_el1 = read_aa64isar1_el1 ();
+ UINT64 aa64isar2_el1 = read_aa64isar2_el1 ();
+ UINT64 aa64mmfr0_el1 = read_aa64mmfr0_el1 ();
+ UINT64 aa64mmfr1_el1 = read_aa64mmfr1_el1 ();
+ UINT64 aa64mmfr2_el1 = read_aa64mmfr2_el1 ();
+ UINT64 aa64pfr0_el1 = read_aa64pfr0_el1 ();
+ UINT64 aa64pfr1_el1 = read_aa64pfr1_el1 ();
+
+ /* UINT64 aa64smfr0_el1 = read_aa64smfr0_el1 ();*/
+ /* UINT64 aa64zfr0_el1 = read_aa64zfr0_el1 ();*/
+
+ AsciiPrint ("ID_AA64MMFR0_EL1 = 0x%016lx\n", aa64mmfr0_el1);
+ AsciiPrint ("ID_AA64MMFR1_EL1 = 0x%016lx\n", aa64mmfr1_el1);
+ AsciiPrint ("ID_AA64MMFR2_EL1 = 0x%016lx\n", aa64mmfr2_el1);
+ AsciiPrint ("ID_AA64PFR0_EL1 = 0x%016lx\n", aa64pfr0_el1);
+ AsciiPrint ("ID_AA64PFR1_EL1 = 0x%016lx\n", aa64pfr1_el1);
+ AsciiPrint ("ID_AA64ISAR0_EL1 = 0x%016lx\n", aa64isar0_el1);
+ AsciiPrint ("ID_AA64ISAR1_EL1 = 0x%016lx\n", aa64isar1_el1);
+ AsciiPrint ("ID_AA64ISAR2_EL1 = 0x%016lx\n", aa64isar2_el1);
+ AsciiPrint ("ID_AA64DFR0_EL1 = 0x%016lx\n", aa64dfr0_el1);
+ AsciiPrint ("ID_AA64DFR1_EL1 = 0x%016lx\n", aa64dfr1_el1); //
ignore
+ /* AsciiPrint ("ID_AA64SMFR0_EL1 = 0x%016lx\n", aa64smfr0_el1);*/
+ /* AsciiPrint ("ID_AA64ZFR0_EL1 = 0x%016lx\n", aa64zfr0_el1);*/
+
+ AsciiPrint ("\n");
+ print_text ("Register", "Bits", "Value", "Feature");
+ print_spacer ();
+
+ handle_aa64mmfr0_el1 (aa64mmfr0_el1);
+ print_spacer ();
+ handle_aa64mmfr1_el1 (aa64mmfr1_el1, aa64pfr0_el1);
+ print_spacer ();
+ handle_aa64mmfr2_el1 (aa64mmfr2_el1);
+
+ print_spacer ();
+ handle_aa64pfr0_el1 (aa64pfr0_el1, aa64pfr1_el1);
+ print_spacer ();
+ handle_aa64pfr1_el1 (aa64pfr1_el1);
+
+ print_spacer ();
+ handle_aa64isar0_el1 (aa64isar0_el1);
+ print_spacer ();
+ handle_aa64isar1_el1 (aa64isar1_el1);
+ print_spacer ();
+ handle_aa64isar2_el1 (aa64isar2_el1);
+
+ print_spacer ();
+ handle_aa64dfr0_el1 (aa64dfr0_el1);
+
+ return EFI_SUCCESS;
+}
diff --git a/ArmPkg/Application/ArmCpuInfo/readregs.s
b/ArmPkg/Application/ArmCpuInfo/readregs.s
new file mode 100644
index 000000000000..052834b3c3f2
--- /dev/null
+++ b/ArmPkg/Application/ArmCpuInfo/readregs.s
@@ -0,0 +1,49 @@
+#include <AsmMacroIoLibV8.h>
+
+ASM_FUNC(read_aa64pfr0_el1)
+ mrs x0, ID_AA64PFR0_EL1;
+ ret;
+
+ASM_FUNC(read_aa64pfr1_el1)
+ mrs x0, ID_AA64PFR1_EL1;
+ ret;
+
+ASM_FUNC(read_aa64dfr0_el1)
+ mrs x0, ID_AA64DFR0_EL1;
+ ret;
+
+ASM_FUNC(read_aa64dfr1_el1)
+ mrs x0, ID_AA64DFR1_EL1;
+ ret;
+
+ASM_FUNC(read_aa64isar0_el1)
+ mrs x0, ID_AA64ISAR0_EL1;
+ ret;
+
+ASM_FUNC(read_aa64isar1_el1)
+ mrs x0, ID_AA64ISAR1_EL1;
+ ret;
+
+ASM_FUNC(read_aa64isar2_el1)
+ mrs x0, ID_AA64ISAR2_EL1;
+ ret;
+
+ASM_FUNC(read_aa64mmfr0_el1)
+ mrs x0, ID_AA64MMFR0_EL1;
+ ret;
+
+ASM_FUNC(read_aa64mmfr1_el1)
+ mrs x0, ID_AA64MMFR1_EL1;
+ ret;
+
+ASM_FUNC(read_aa64mmfr2_el1)
+ mrs x0, ID_AA64MMFR2_EL1;
+ ret;
+
+# ASM_FUNC(read_aa64zfr0_el1)
+# mrs x0, ID_AA64ZFR0_EL1;
+# ret;
+
+# ASM_FUNC(read_aa64smfr0_el1)
+# mrs x0, ID_AA64SMFR0_EL1;
+# ret;
--
2.40.0
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#102694): https://edk2.groups.io/g/devel/message/102694
Mute This Topic: https://groups.io/mt/98123579/21656
Group Owner: devel+ow...@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
