The following commit has been merged into the x86/misc branch of tip:
Commit-ID: cbbd847d107fb750e62670d0f205a7f58b36f893
Gitweb: https://git.kernel.org/tip/cbbd847d107fb750e62670d0f205a7f58b36f893
Author: Ahmed S. Darwish <darwi@xxxxxxxxxxxxx>
AuthorDate: Thu, 18 Jul 2024 15:47:48 +02:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Fri, 02 Aug 2024 09:17:19 +02:00
tools/x86/kcpuid: Introduce a complete cpuid bitfields CSV file
For parsing the cpuid bitfields, kcpuid uses an incomplete CSV file with
300+ bitfields.
Use an auto-generated CSV file from the x86-cpuid.org project instead.
It provides complete bitfields coverage: 830+ bitfields, all with proper
descriptions.
The auto-generated file has the following blurb automatically added:
# SPDX-License-Identifier: CC0-1.0
# Generator: x86-cpuid-db v1.0
The generator tag includes the project's workspace "git describe"
version string. It is intended for projects like KernelCI, to aid in
verifying that the auto-generated files have not been tampered with.
The file also has the blurb:
# Auto-generated file.
# Please submit all updates and bugfixes to https://x86-cpuid.org
It's thus kindly requested that the Linux kernel's x86 tree maintainers
enforce sending all updates to x86-cpuid.org's upstream database first,
thus benefiting the whole ecosystem.
Signed-off-by: Ahmed S. Darwish <darwi@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://gitlab.com/x86-cpuid.org/x86-cpuid-db/-/blob/v1.0/LICENSE.rst
Link: https://gitlab.com/x86-cpuid.org/x86-cpuid-db
Link: https://lore.kernel.org/all/20240718134755.378115-9-darwi@xxxxxxxxxxxxx
---
tools/arch/x86/kcpuid/cpuid.csv | 1430 +++++++++++++++++++++---------
1 file changed, 1016 insertions(+), 414 deletions(-)
diff --git a/tools/arch/x86/kcpuid/cpuid.csv b/tools/arch/x86/kcpuid/cpuid.csv
index e0c25b7..d751eb8 100644
--- a/tools/arch/x86/kcpuid/cpuid.csv
+++ b/tools/arch/x86/kcpuid/cpuid.csv
@@ -1,451 +1,1053 @@
-# The basic row format is:
-# LEAF, SUBLEAF, register_name, bits, short_name, long_description
-
-# Leaf 00H
- 0, 0, EAX, 31:0, max_basic_leafs, Max input value for supported subleafs
-
-# Leaf 01H
- 1, 0, EAX, 3:0, stepping, Stepping ID
- 1, 0, EAX, 7:4, model, Model
- 1, 0, EAX, 11:8, family, Family ID
- 1, 0, EAX, 13:12, processor, Processor Type
- 1, 0, EAX, 19:16, model_ext, Extended Model ID
- 1, 0, EAX, 27:20, family_ext, Extended Family ID
-
- 1, 0, EBX, 7:0, brand, Brand Index
- 1, 0, EBX, 15:8, clflush_size, CLFLUSH line size (value * 8) in bytes
- 1, 0, EBX, 23:16, max_cpu_id, Maxim number of addressable logic cpu in this package
- 1, 0, EBX, 31:24, apic_id, Initial APIC ID
-
- 1, 0, ECX, 0, sse3, Streaming SIMD Extensions 3(SSE3)
- 1, 0, ECX, 1, pclmulqdq, PCLMULQDQ instruction supported
- 1, 0, ECX, 2, dtes64, DS area uses 64-bit layout
- 1, 0, ECX, 3, mwait, MONITOR/MWAIT supported
- 1, 0, ECX, 4, ds_cpl, CPL Qualified Debug Store which allows for branch message storage qualified by CPL
- 1, 0, ECX, 5, vmx, Virtual Machine Extensions supported
- 1, 0, ECX, 6, smx, Safer Mode Extension supported
- 1, 0, ECX, 7, eist, Enhanced Intel SpeedStep Technology
- 1, 0, ECX, 8, tm2, Thermal Monitor 2
- 1, 0, ECX, 9, ssse3, Supplemental Streaming SIMD Extensions 3 (SSSE3)
- 1, 0, ECX, 10, l1_ctx_id, L1 data cache could be set to either adaptive mode or shared mode (check IA32_MISC_ENABLE bit 24 definition)
- 1, 0, ECX, 11, sdbg, IA32_DEBUG_INTERFACE MSR for silicon debug supported
- 1, 0, ECX, 12, fma, FMA extensions using YMM state supported
- 1, 0, ECX, 13, cmpxchg16b, 'CMPXCHG16B - Compare and Exchange Bytes' supported
- 1, 0, ECX, 14, xtpr_update, xTPR Update Control supported
- 1, 0, ECX, 15, pdcm, Perfmon and Debug Capability present
- 1, 0, ECX, 17, pcid, Process-Context Identifiers feature present
- 1, 0, ECX, 18, dca, Prefetching data from a memory mapped device supported
- 1, 0, ECX, 19, sse4_1, SSE4.1 feature present
- 1, 0, ECX, 20, sse4_2, SSE4.2 feature present
- 1, 0, ECX, 21, x2apic, x2APIC supported
- 1, 0, ECX, 22, movbe, MOVBE instruction supported
- 1, 0, ECX, 23, popcnt, POPCNT instruction supported
- 1, 0, ECX, 24, tsc_deadline_timer, LAPIC supports one-shot operation using a TSC deadline value
- 1, 0, ECX, 25, aesni, AESNI instruction supported
- 1, 0, ECX, 26, xsave, XSAVE/XRSTOR processor extended states (XSETBV/XGETBV/XCR0)
- 1, 0, ECX, 27, osxsave, OS has set CR4.OSXSAVE bit to enable XSETBV/XGETBV/XCR0
- 1, 0, ECX, 28, avx, AVX instruction supported
- 1, 0, ECX, 29, f16c, 16-bit floating-point conversion instruction supported
- 1, 0, ECX, 30, rdrand, RDRAND instruction supported
-
- 1, 0, EDX, 0, fpu, x87 FPU on chip
- 1, 0, EDX, 1, vme, Virtual-8086 Mode Enhancement
- 1, 0, EDX, 2, de, Debugging Extensions
- 1, 0, EDX, 3, pse, Page Size Extensions
- 1, 0, EDX, 4, tsc, Time Stamp Counter
- 1, 0, EDX, 5, msr, RDMSR and WRMSR Support
- 1, 0, EDX, 6, pae, Physical Address Extensions
- 1, 0, EDX, 7, mce, Machine Check Exception
- 1, 0, EDX, 8, cx8, CMPXCHG8B instr
- 1, 0, EDX, 9, apic, APIC on Chip
- 1, 0, EDX, 11, sep, SYSENTER and SYSEXIT instrs
- 1, 0, EDX, 12, mtrr, Memory Type Range Registers
- 1, 0, EDX, 13, pge, Page Global Bit
- 1, 0, EDX, 14, mca, Machine Check Architecture
- 1, 0, EDX, 15, cmov, Conditional Move Instrs
- 1, 0, EDX, 16, pat, Page Attribute Table
- 1, 0, EDX, 17, pse36, 36-Bit Page Size Extension
- 1, 0, EDX, 18, psn, Processor Serial Number
- 1, 0, EDX, 19, clflush, CLFLUSH instr
-# 1, 0, EDX, 20,
- 1, 0, EDX, 21, ds, Debug Store
- 1, 0, EDX, 22, acpi, Thermal Monitor and Software Controlled Clock Facilities
- 1, 0, EDX, 23, mmx, Intel MMX Technology
- 1, 0, EDX, 24, fxsr, XSAVE and FXRSTOR Instrs
- 1, 0, EDX, 25, sse, SSE
- 1, 0, EDX, 26, sse2, SSE2
- 1, 0, EDX, 27, ss, Self Snoop
- 1, 0, EDX, 28, hit, Max APIC IDs
- 1, 0, EDX, 29, tm, Thermal Monitor
-# 1, 0, EDX, 30,
- 1, 0, EDX, 31, pbe, Pending Break Enable
-
-# Leaf 02H
-# cache and TLB descriptor info
-
-# Leaf 03H
-# Precessor Serial Number, introduced on Pentium III, not valid for
-# latest models
-
-# Leaf 04H
-# thread/core and cache topology
- 4, 0, EAX, 4:0, cache_type, Cache type like instr/data or unified
- 4, 0, EAX, 7:5, cache_level, Cache Level (starts at 1)
- 4, 0, EAX, 8, cache_self_init, Cache Self Initialization
- 4, 0, EAX, 9, fully_associate, Fully Associative cache
-# 4, 0, EAX, 13:10, resvd, resvd
- 4, 0, EAX, 25:14, max_logical_id, Max number of addressable IDs for logical processors sharing the cache
- 4, 0, EAX, 31:26, max_phy_id, Max number of addressable IDs for processors in phy package
-
- 4, 0, EBX, 11:0, cache_linesize, Size of a cache line in bytes
- 4, 0, EBX, 21:12, cache_partition, Physical Line partitions
- 4, 0, EBX, 31:22, cache_ways, Ways of associativity
- 4, 0, ECX, 31:0, cache_sets, Number of Sets - 1
- 4, 0, EDX, 0, c_wbinvd, 1 means WBINVD/INVD is not ganranteed to act upon lower level caches of non-originating threads sharing this cache
- 4, 0, EDX, 1, c_incl, Whether cache is inclusive of lower cache level
- 4, 0, EDX, 2, c_comp_index, Complex Cache Indexing
-
-# Leaf 05H
-# MONITOR/MWAIT
- 5, 0, EAX, 15:0, min_mon_size, Smallest monitor line size in bytes
- 5, 0, EBX, 15:0, max_mon_size, Largest monitor line size in bytes
- 5, 0, ECX, 0, mwait_ext, Enum of Monitor-Mwait extensions supported
- 5, 0, ECX, 1, mwait_irq_break, Largest monitor line size in bytes
- 5, 0, EDX, 3:0, c0_sub_stats, Number of C0* sub C-states supported using MWAIT
- 5, 0, EDX, 7:4, c1_sub_stats, Number of C1* sub C-states supported using MWAIT
- 5, 0, EDX, 11:8, c2_sub_stats, Number of C2* sub C-states supported using MWAIT
- 5, 0, EDX, 15:12, c3_sub_stats, Number of C3* sub C-states supported using MWAIT
- 5, 0, EDX, 19:16, c4_sub_stats, Number of C4* sub C-states supported using MWAIT
- 5, 0, EDX, 23:20, c5_sub_stats, Number of C5* sub C-states supported using MWAIT
- 5, 0, EDX, 27:24, c6_sub_stats, Number of C6* sub C-states supported using MWAIT
- 5, 0, EDX, 31:28, c7_sub_stats, Number of C7* sub C-states supported using MWAIT
-
-# Leaf 06H
-# Thermal & Power Management
-
- 6, 0, EAX, 0, dig_temp, Digital temperature sensor supported
- 6, 0, EAX, 1, turbo, Intel Turbo Boost
- 6, 0, EAX, 2, arat, Always running APIC timer
-# 6, 0, EAX, 3, resv, Reserved
- 6, 0, EAX, 4, pln, Power limit notifications supported
- 6, 0, EAX, 5, ecmd, Clock modulation duty cycle extension supported
- 6, 0, EAX, 6, ptm, Package thermal management supported
- 6, 0, EAX, 7, hwp, HWP base register
- 6, 0, EAX, 8, hwp_notify, HWP notification
- 6, 0, EAX, 9, hwp_act_window, HWP activity window
- 6, 0, EAX, 10, hwp_energy, HWP energy performance preference
- 6, 0, EAX, 11, hwp_pkg_req, HWP package level request
-# 6, 0, EAX, 12, resv, Reserved
- 6, 0, EAX, 13, hdc, HDC base registers supported
- 6, 0, EAX, 14, turbo3, Turbo Boost Max 3.0
- 6, 0, EAX, 15, hwp_cap, Highest Performance change supported
- 6, 0, EAX, 16, hwp_peci, HWP PECI override is supported
- 6, 0, EAX, 17, hwp_flex, Flexible HWP is supported
- 6, 0, EAX, 18, hwp_fast, Fast access mode for the IA32_HWP_REQUEST MSR is supported
-# 6, 0, EAX, 19, resv, Reserved
- 6, 0, EAX, 20, hwp_ignr, Ignoring Idle Logical Processor HWP request is supported
-
- 6, 0, EBX, 3:0, therm_irq_thresh, Number of Interrupt Thresholds in Digital Thermal Sensor
- 6, 0, ECX, 0, aperfmperf, Presence of IA32_MPERF and IA32_APERF
- 6, 0, ECX, 3, energ_bias, Performance-energy bias preference supported
-
-# Leaf 07H
-# ECX == 0
-# AVX512 refers to https://en.wikipedia.org/wiki/AVX-512
-# XXX: Do we really need to enumerate each and every AVX512 sub features
-
- 7, 0, EBX, 0, fsgsbase, RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE supported
- 7, 0, EBX, 1, tsc_adjust, TSC_ADJUST MSR supported
- 7, 0, EBX, 2, sgx, Software Guard Extensions
- 7, 0, EBX, 3, bmi1, BMI1
- 7, 0, EBX, 4, hle, Hardware Lock Elision
- 7, 0, EBX, 5, avx2, AVX2
-# 7, 0, EBX, 6, fdp_excp_only, x87 FPU Data Pointer updated only on x87 exceptions
- 7, 0, EBX, 7, smep, Supervisor-Mode Execution Prevention
- 7, 0, EBX, 8, bmi2, BMI2
- 7, 0, EBX, 9, rep_movsb, Enhanced REP MOVSB/STOSB
- 7, 0, EBX, 10, invpcid, INVPCID instruction
- 7, 0, EBX, 11, rtm, Restricted Transactional Memory
- 7, 0, EBX, 12, rdt_m, Intel RDT Monitoring capability
- 7, 0, EBX, 13, depc_fpu_cs_ds, Deprecates FPU CS and FPU DS
- 7, 0, EBX, 14, mpx, Memory Protection Extensions
- 7, 0, EBX, 15, rdt_a, Intel RDT Allocation capability
- 7, 0, EBX, 16, avx512f, AVX512 Foundation instr
- 7, 0, EBX, 17, avx512dq, AVX512 Double and Quadword AVX512 instr
- 7, 0, EBX, 18, rdseed, RDSEED instr
- 7, 0, EBX, 19, adx, ADX instr
- 7, 0, EBX, 20, smap, Supervisor Mode Access Prevention
- 7, 0, EBX, 21, avx512ifma, AVX512 Integer Fused Multiply Add
-# 7, 0, EBX, 22, resvd, resvd
- 7, 0, EBX, 23, clflushopt, CLFLUSHOPT instr
- 7, 0, EBX, 24, clwb, CLWB instr
- 7, 0, EBX, 25, intel_pt, Intel Processor Trace instr
- 7, 0, EBX, 26, avx512pf, Prefetch
- 7, 0, EBX, 27, avx512er, AVX512 Exponent Reciproca instr
- 7, 0, EBX, 28, avx512cd, AVX512 Conflict Detection instr
- 7, 0, EBX, 29, sha, Intel Secure Hash Algorithm Extensions instr
- 7, 0, EBX, 30, avx512bw, AVX512 Byte & Word instr
- 7, 0, EBX, 31, avx512vl, AVX512 Vector Length Extentions (VL)
- 7, 0, ECX, 0, prefetchwt1, X
- 7, 0, ECX, 1, avx512vbmi, AVX512 Vector Byte Manipulation Instructions
- 7, 0, ECX, 2, umip, User-mode Instruction Prevention
-
- 7, 0, ECX, 3, pku, Protection Keys for User-mode pages
- 7, 0, ECX, 4, ospke, CR4 PKE set to enable protection keys
-# 7, 0, ECX, 16:5, resvd, resvd
- 7, 0, ECX, 21:17, mawau, The value of MAWAU used by the BNDLDX and BNDSTX instructions in 64-bit mode
- 7, 0, ECX, 22, rdpid, RDPID and IA32_TSC_AUX
-# 7, 0, ECX, 29:23, resvd, resvd
- 7, 0, ECX, 30, sgx_lc, SGX Launch Configuration
-# 7, 0, ECX, 31, resvd, resvd
-
-# Leaf 08H
-#
-
-
-# Leaf 09H
-# Direct Cache Access (DCA) information
- 9, 0, ECX, 31:0, dca_cap, The value of IA32_PLATFORM_DCA_CAP
+# SPDX-License-Identifier: CC0-1.0
+# Generator: x86-cpuid-db v1.0
-# Leaf 0AH
-# Architectural Performance Monitoring
#
-# Do we really need to print out the PMU related stuff?
-# Does normal user really care about it?
+# Auto-generated file.
+# Please submit all updates and bugfixes to https://x86-cpuid.org
#
- 0xA, 0, EAX, 7:0, pmu_ver, Performance Monitoring Unit version
- 0xA, 0, EAX, 15:8, pmu_gp_cnt_num, Numer of general-purose PMU counters per logical CPU
- 0xA, 0, EAX, 23:16, pmu_cnt_bits, Bit wideth of PMU counter
- 0xA, 0, EAX, 31:24, pmu_ebx_bits, Length of EBX bit vector to enumerate PMU events
-
- 0xA, 0, EBX, 0, pmu_no_core_cycle_evt, Core cycle event not available
- 0xA, 0, EBX, 1, pmu_no_instr_ret_evt, Instruction retired event not available
- 0xA, 0, EBX, 2, pmu_no_ref_cycle_evt, Reference cycles event not available
- 0xA, 0, EBX, 3, pmu_no_llc_ref_evt, Last-level cache reference event not available
- 0xA, 0, EBX, 4, pmu_no_llc_mis_evt, Last-level cache misses event not available
- 0xA, 0, EBX, 5, pmu_no_br_instr_ret_evt, Branch instruction retired event not available
- 0xA, 0, EBX, 6, pmu_no_br_mispredict_evt, Branch mispredict retired event not available
-
- 0xA, 0, ECX, 4:0, pmu_fixed_cnt_num, Performance Monitoring Unit version
- 0xA, 0, ECX, 12:5, pmu_fixed_cnt_bits, Numer of PMU counters per logical CPU
-
-# Leaf 0BH
-# Extended Topology Enumeration Leaf
-#
-
- 0xB, 0, EAX, 4:0, id_shift, Number of bits to shift right on x2APIC ID to get a unique topology ID of the next level type
- 0xB, 0, EBX, 15:0, cpu_nr, Number of logical processors at this level type
- 0xB, 0, ECX, 15:8, lvl_type, 0-Invalid 1-SMT 2-Core
- 0xB, 0, EDX, 31:0, x2apic_id, x2APIC ID the current logical processor
-
-
-# Leaf 0DH
-# Processor Extended State
- 0xD, 0, EAX, 0, x87, X87 state
- 0xD, 0, EAX, 1, sse, SSE state
- 0xD, 0, EAX, 2, avx, AVX state
- 0xD, 0, EAX, 4:3, mpx, MPX state
- 0xD, 0, EAX, 7:5, avx512, AVX-512 state
- 0xD, 0, EAX, 9, pkru, PKRU state
-
- 0xD, 0, EBX, 31:0, max_sz_xcr0, Maximum size (bytes) required by enabled features in XCR0
- 0xD, 0, ECX, 31:0, max_sz_xsave, Maximum size (bytes) of the XSAVE/XRSTOR save area
-
- 0xD, 1, EAX, 0, xsaveopt, XSAVEOPT available
- 0xD, 1, EAX, 1, xsavec, XSAVEC and compacted form supported
- 0xD, 1, EAX, 2, xgetbv, XGETBV supported
- 0xD, 1, EAX, 3, xsaves, XSAVES/XRSTORS and IA32_XSS supported
-
- 0xD, 1, EBX, 31:0, max_sz_xcr0, Maximum size (bytes) required by enabled features in XCR0
- 0xD, 1, ECX, 8, pt, PT state
- 0xD, 1, ECX, 11, cet_usr, CET user state
- 0xD, 1, ECX, 12, cet_supv, CET supervisor state
- 0xD, 1, ECX, 13, hdc, HDC state
- 0xD, 1, ECX, 16, hwp, HWP state
-
-# Leaf 0FH
-# Intel RDT Monitoring
-
- 0xF, 0, EBX, 31:0, rmid_range, Maximum range (zero-based) of RMID within this physical processor of all types
- 0xF, 0, EDX, 1, l3c_rdt_mon, L3 Cache RDT Monitoring supported
-
- 0xF, 1, ECX, 31:0, rmid_range, Maximum range (zero-based) of RMID of this types
- 0xF, 1, EDX, 0, l3c_ocp_mon, L3 Cache occupancy Monitoring supported
- 0xF, 1, EDX, 1, l3c_tbw_mon, L3 Cache Total Bandwidth Monitoring supported
- 0xF, 1, EDX, 2, l3c_lbw_mon, L3 Cache Local Bandwidth Monitoring supported
+# The basic row format is:
+# LEAF, SUBLEAVES, reg, bits, short_name , long_description
+
+# Leaf 0H
+# Maximum standard leaf number + CPU vendor string
+
+ 0, 0, eax, 31:0, max_std_leaf , Highest cpuid standard leaf supported
+ 0, 0, ebx, 31:0, cpu_vendorid_0 , CPU vendor ID string bytes 0 - 3
+ 0, 0, ecx, 31:0, cpu_vendorid_2 , CPU vendor ID string bytes 8 - 11
+ 0, 0, edx, 31:0, cpu_vendorid_1 , CPU vendor ID string bytes 4 - 7
+
+# Leaf 1H
+# CPU FMS (Family/Model/Stepping) + standard feature flags
+
+ 1, 0, eax, 3:0, stepping , Stepping ID
+ 1, 0, eax, 7:4, base_model , Base CPU model ID
+ 1, 0, eax, 11:8, base_family_id , Base CPU family ID
+ 1, 0, eax, 13:12, cpu_type , CPU type
+ 1, 0, eax, 19:16, ext_model , Extended CPU model ID
+ 1, 0, eax, 27:20, ext_family , Extended CPU family ID
+ 1, 0, ebx, 7:0, brand_id , Brand index
+ 1, 0, ebx, 15:8, clflush_size , CLFLUSH instruction cache line size
+ 1, 0, ebx, 23:16, n_logical_cpu , Logical CPU (HW threads) count
+ 1, 0, ebx, 31:24, local_apic_id , Initial local APIC physical ID
+ 1, 0, ecx, 0, pni , Streaming SIMD Extensions 3 (SSE3)
+ 1, 0, ecx, 1, pclmulqdq , PCLMULQDQ instruction support
+ 1, 0, ecx, 2, dtes64 , 64-bit DS save area
+ 1, 0, ecx, 3, monitor , MONITOR/MWAIT support
+ 1, 0, ecx, 4, ds_cpl , CPL Qualified Debug Store
+ 1, 0, ecx, 5, vmx , Virtual Machine Extensions
+ 1, 0, ecx, 6, smx , Safer Mode Extensions
+ 1, 0, ecx, 7, est , Enhanced Intel SpeedStep
+ 1, 0, ecx, 8, tm2 , Thermal Monitor 2
+ 1, 0, ecx, 9, ssse3 , Supplemental SSE3
+ 1, 0, ecx, 10, cid , L1 Context ID
+ 1, 0, ecx, 11, sdbg , Sillicon Debug
+ 1, 0, ecx, 12, fma , FMA extensions using YMM state
+ 1, 0, ecx, 13, cx16 , CMPXCHG16B instruction support
+ 1, 0, ecx, 14, xtpr , xTPR Update Control
+ 1, 0, ecx, 15, pdcm , Perfmon and Debug Capability
+ 1, 0, ecx, 17, pcid , Process-context identifiers
+ 1, 0, ecx, 18, dca , Direct Cache Access
+ 1, 0, ecx, 19, sse4_1 , SSE4.1
+ 1, 0, ecx, 20, sse4_2 , SSE4.2
+ 1, 0, ecx, 21, x2apic , X2APIC support
+ 1, 0, ecx, 22, movbe , MOVBE instruction support
+ 1, 0, ecx, 23, popcnt , POPCNT instruction support
+ 1, 0, ecx, 24, tsc_deadline_timer , APIC timer one-shot operation
+ 1, 0, ecx, 25, aes , AES instructions
+ 1, 0, ecx, 26, xsave , XSAVE (and related instructions) support
+ 1, 0, ecx, 27, osxsave , XSAVE (and related instructions) are enabled by OS
+ 1, 0, ecx, 28, avx , AVX instructions support
+ 1, 0, ecx, 29, f16c , Half-precision floating-point conversion support
+ 1, 0, ecx, 30, rdrand , RDRAND instruction support
+ 1, 0, ecx, 31, guest_status , System is running as guest; (para-)virtualized system
+ 1, 0, edx, 0, fpu , Floating-Point Unit on-chip (x87)
+ 1, 0, edx, 1, vme , Virtual-8086 Mode Extensions
+ 1, 0, edx, 2, de , Debugging Extensions
+ 1, 0, edx, 3, pse , Page Size Extension
+ 1, 0, edx, 4, tsc , Time Stamp Counter
+ 1, 0, edx, 5, msr , Model-Specific Registers (RDMSR and WRMSR support)
+ 1, 0, edx, 6, pae , Physical Address Extensions
+ 1, 0, edx, 7, mce , Machine Check Exception
+ 1, 0, edx, 8, cx8 , CMPXCHG8B instruction
+ 1, 0, edx, 9, apic , APIC on-chip
+ 1, 0, edx, 11, sep , SYSENTER, SYSEXIT, and associated MSRs
+ 1, 0, edx, 12, mtrr , Memory Type Range Registers
+ 1, 0, edx, 13, pge , Page Global Extensions
+ 1, 0, edx, 14, mca , Machine Check Architecture
+ 1, 0, edx, 15, cmov , Conditional Move Instruction
+ 1, 0, edx, 16, pat , Page Attribute Table
+ 1, 0, edx, 17, pse36 , Page Size Extension (36-bit)
+ 1, 0, edx, 18, pn , Processor Serial Number
+ 1, 0, edx, 19, clflush , CLFLUSH instruction
+ 1, 0, edx, 21, dts , Debug Store
+ 1, 0, edx, 22, acpi , Thermal monitor and clock control
+ 1, 0, edx, 23, mmx , MMX instructions
+ 1, 0, edx, 24, fxsr , FXSAVE and FXRSTOR instructions
+ 1, 0, edx, 25, sse , SSE instructions
+ 1, 0, edx, 26, sse2 , SSE2 instructions
+ 1, 0, edx, 27, ss , Self Snoop
+ 1, 0, edx, 28, ht , Hyper-threading
+ 1, 0, edx, 29, tm , Thermal Monitor
+ 1, 0, edx, 30, ia64 , Legacy IA-64 (Itanium) support bit, now resreved
+ 1, 0, edx, 31, pbe , Pending Break Enable
+
+# Leaf 2H
+# Intel cache and TLB information one-byte descriptors
+
+ 2, 0, eax, 7:0, iteration_count , Number of times this CPUD leaf must be queried
+ 2, 0, eax, 15:8, desc1 , Descriptor #1
+ 2, 0, eax, 23:16, desc2 , Descriptor #2
+ 2, 0, eax, 30:24, desc3 , Descriptor #3
+ 2, 0, eax, 31, eax_invalid , Descriptors 1-3 are invalid if set
+ 2, 0, ebx, 7:0, desc4 , Descriptor #4
+ 2, 0, ebx, 15:8, desc5 , Descriptor #5
+ 2, 0, ebx, 23:16, desc6 , Descriptor #6
+ 2, 0, ebx, 30:24, desc7 , Descriptor #7
+ 2, 0, ebx, 31, ebx_invalid , Descriptors 4-7 are invalid if set
+ 2, 0, ecx, 7:0, desc8 , Descriptor #8
+ 2, 0, ecx, 15:8, desc9 , Descriptor #9
+ 2, 0, ecx, 23:16, desc10 , Descriptor #10
+ 2, 0, ecx, 30:24, desc11 , Descriptor #11
+ 2, 0, ecx, 31, ecx_invalid , Descriptors 8-11 are invalid if set
+ 2, 0, edx, 7:0, desc12 , Descriptor #12
+ 2, 0, edx, 15:8, desc13 , Descriptor #13
+ 2, 0, edx, 23:16, desc14 , Descriptor #14
+ 2, 0, edx, 30:24, desc15 , Descriptor #15
+ 2, 0, edx, 31, edx_invalid , Descriptors 12-15 are invalid if set
+
+# Leaf 4H
+# Intel deterministic cache parameters
+
+ 4, 31:0, eax, 4:0, cache_type , Cache type field
+ 4, 31:0, eax, 7:5, cache_level , Cache level (1-based)
+ 4, 31:0, eax, 8, cache_self_init , Self-initialializing cache level
+ 4, 31:0, eax, 9, fully_associative , Fully-associative cache
+ 4, 31:0, eax, 25:14, num_threads_sharing , Number logical CPUs sharing this cache
+ 4, 31:0, eax, 31:26, num_cores_on_die , Number of cores in the physical package
+ 4, 31:0, ebx, 11:0, cache_linesize , System coherency line size (0-based)
+ 4, 31:0, ebx, 21:12, cache_npartitions , Physical line partitions (0-based)
+ 4, 31:0, ebx, 31:22, cache_nways , Ways of associativity (0-based)
+ 4, 31:0, ecx, 30:0, cache_nsets , Cache number of sets (0-based)
+ 4, 31:0, edx, 0, wbinvd_rll_no_guarantee, WBINVD/INVD not guaranteed for Remote Lower-Level caches
+ 4, 31:0, edx, 1, ll_inclusive , Cache is inclusive of Lower-Level caches
+ 4, 31:0, edx, 2, complex_indexing , Not a direct-mapped cache (complex function)
+
+# Leaf 5H
+# MONITOR/MWAIT instructions enumeration
+
+ 5, 0, eax, 15:0, min_mon_size , Smallest monitor-line size, in bytes
+ 5, 0, ebx, 15:0, max_mon_size , Largest monitor-line size, in bytes
+ 5, 0, ecx, 0, mwait_ext , Enumeration of MONITOR/MWAIT extensions is supported
+ 5, 0, ecx, 1, mwait_irq_break , Interrupts as a break-event for MWAIT is supported
+ 5, 0, edx, 3:0, n_c0_substates , Number of C0 sub C-states supported using MWAIT
+ 5, 0, edx, 7:4, n_c1_substates , Number of C1 sub C-states supported using MWAIT
+ 5, 0, edx, 11:8, n_c2_substates , Number of C2 sub C-states supported using MWAIT
+ 5, 0, edx, 15:12, n_c3_substates , Number of C3 sub C-states supported using MWAIT
+ 5, 0, edx, 19:16, n_c4_substates , Number of C4 sub C-states supported using MWAIT
+ 5, 0, edx, 23:20, n_c5_substates , Number of C5 sub C-states supported using MWAIT
+ 5, 0, edx, 27:24, n_c6_substates , Number of C6 sub C-states supported using MWAIT
+ 5, 0, edx, 31:28, n_c7_substates , Number of C7 sub C-states supported using MWAIT
+
+# Leaf 6H
+# Thermal and Power Management enumeration
+
+ 6, 0, eax, 0, dtherm , Digital temprature sensor
+ 6, 0, eax, 1, turbo_boost , Intel Turbo Boost
+ 6, 0, eax, 2, arat , Always-Running APIC Timer (not affected by p-state)
+ 6, 0, eax, 4, pln , Power Limit Notification (PLN) event
+ 6, 0, eax, 5, ecmd , Clock modulation duty cycle extension
+ 6, 0, eax, 6, pts , Package thermal management
+ 6, 0, eax, 7, hwp , HWP (Hardware P-states) base registers are supported
+ 6, 0, eax, 8, hwp_notify , HWP notification (IA32_HWP_INTERRUPT MSR)
+ 6, 0, eax, 9, hwp_act_window , HWP activity window (IA32_HWP_REQUEST[bits 41:32]) supported
+ 6, 0, eax, 10, hwp_epp , HWP Energy Performance Preference
+ 6, 0, eax, 11, hwp_pkg_req , HWP Package Level Request
+ 6, 0, eax, 13, hdc_base_regs , HDC base registers are supported
+ 6, 0, eax, 14, turbo_boost_3_0 , Intel Turbo Boost Max 3.0
+ 6, 0, eax, 15, hwp_capabilities , HWP Highest Performance change
+ 6, 0, eax, 16, hwp_peci_override , HWP PECI override
+ 6, 0, eax, 17, hwp_flexible , Flexible HWP
+ 6, 0, eax, 18, hwp_fast , IA32_HWP_REQUEST MSR fast access mode
+ 6, 0, eax, 19, hfi , HW_FEEDBACK MSRs supported
+ 6, 0, eax, 20, hwp_ignore_idle , Ignoring idle logical CPU HWP req is supported
+ 6, 0, eax, 23, thread_director , Intel thread director support
+ 6, 0, eax, 24, therm_interrupt_bit25 , IA32_THERM_INTERRUPT MSR bit 25 is supported
+ 6, 0, ebx, 3:0, n_therm_thresholds , Digital thermometer thresholds
+ 6, 0, ecx, 0, aperfmperf , MPERF/APERF MSRs (effective frequency interface)
+ 6, 0, ecx, 3, epb , IA32_ENERGY_PERF_BIAS MSR support
+ 6, 0, ecx, 15:8, thrd_director_nclasses , Number of classes, Intel thread director
+ 6, 0, edx, 0, perfcap_reporting , Performance capability reporting
+ 6, 0, edx, 1, encap_reporting , Energy efficiency capability reporting
+ 6, 0, edx, 11:8, feedback_sz , HW feedback interface struct size, in 4K pages
+ 6, 0, edx, 31:16, this_lcpu_hwfdbk_idx , This logical CPU index @ HW feedback struct, 0-based
+
+# Leaf 7H
+# Extended CPU features enumeration
+
+ 7, 0, eax, 31:0, leaf7_n_subleaves , Number of cpuid 0x7 subleaves
+ 7, 0, ebx, 0, fsgsbase , FSBASE/GSBASE read/write support
+ 7, 0, ebx, 1, tsc_adjust , IA32_TSC_ADJUST MSR supported
+ 7, 0, ebx, 2, sgx , Intel SGX (Software Guard Extensions)
+ 7, 0, ebx, 3, bmi1 , Bit manipulation extensions group 1
+ 7, 0, ebx, 4, hle , Hardware Lock Elision
+ 7, 0, ebx, 5, avx2 , AVX2 instruction set
+ 7, 0, ebx, 6, fdp_excptn_only , FPU Data Pointer updated only on x87 exceptions
+ 7, 0, ebx, 7, smep , Supervisor Mode Execution Protection
+ 7, 0, ebx, 8, bmi2 , Bit manipulation extensions group 2
+ 7, 0, ebx, 9, erms , Enhanced REP MOVSB/STOSB
+ 7, 0, ebx, 10, invpcid , INVPCID instruction (Invalidate Processor Context ID)
+ 7, 0, ebx, 11, rtm , Intel restricted transactional memory
+ 7, 0, ebx, 12, cqm , Intel RDT-CMT / AMD Platform-QoS cache monitoring
+ 7, 0, ebx, 13, zero_fcs_fds , Deprecated FPU CS/DS (stored as zero)
+ 7, 0, ebx, 14, mpx , Intel memory protection extensions
+ 7, 0, ebx, 15, rdt_a , Intel RDT / AMD Platform-QoS Enforcemeent
+ 7, 0, ebx, 16, avx512f , AVX-512 foundation instructions
+ 7, 0, ebx, 17, avx512dq , AVX-512 double/quadword instructions
+ 7, 0, ebx, 18, rdseed , RDSEED instruction
+ 7, 0, ebx, 19, adx , ADCX/ADOX instructions
+ 7, 0, ebx, 20, smap , Supervisor mode access prevention
+ 7, 0, ebx, 21, avx512ifma , AVX-512 integer fused multiply add
+ 7, 0, ebx, 23, clflushopt , CLFLUSHOPT instruction
+ 7, 0, ebx, 24, clwb , CLWB instruction
+ 7, 0, ebx, 25, intel_pt , Intel processor trace
+ 7, 0, ebx, 26, avx512pf , AVX-512 prefetch instructions
+ 7, 0, ebx, 27, avx512er , AVX-512 exponent/reciprocal instrs
+ 7, 0, ebx, 28, avx512cd , AVX-512 conflict detection instrs
+ 7, 0, ebx, 29, sha_ni , SHA/SHA256 instructions
+ 7, 0, ebx, 30, avx512bw , AVX-512 BW (byte/word granular) instructions
+ 7, 0, ebx, 31, avx512vl , AVX-512 VL (128/256 vector length) extensions
+ 7, 0, ecx, 0, prefetchwt1 , PREFETCHWT1 (Intel Xeon Phi only)
+ 7, 0, ecx, 1, avx512vbmi , AVX-512 Vector byte manipulation instrs
+ 7, 0, ecx, 2, umip , User mode instruction protection
+ 7, 0, ecx, 3, pku , Protection keys for user-space
+ 7, 0, ecx, 4, ospke , OS protection keys enable
+ 7, 0, ecx, 5, waitpkg , WAITPKG instructions
+ 7, 0, ecx, 6, avx512_vbmi2 , AVX-512 vector byte manipulation instrs group 2
+ 7, 0, ecx, 7, cet_ss , CET shadow stack features
+ 7, 0, ecx, 8, gfni , Galois field new instructions
+ 7, 0, ecx, 9, vaes , Vector AES instrs
+ 7, 0, ecx, 10, vpclmulqdq , VPCLMULQDQ 256-bit instruction support
+ 7, 0, ecx, 11, avx512_vnni , Vector neural network instructions
+ 7, 0, ecx, 12, avx512_bitalg , AVX-512 bit count/shiffle
+ 7, 0, ecx, 13, tme , Intel total memory encryption
+ 7, 0, ecx, 14, avx512_vpopcntdq , AVX-512: POPCNT for vectors of DW/QW
+ 7, 0, ecx, 16, la57 , 57-bit linear addreses (five-level paging)
+ 7, 0, ecx, 21:17, mawau_val_lm , BNDLDX/BNDSTX MAWAU value in 64-bit mode
+ 7, 0, ecx, 22, rdpid , RDPID instruction
+ 7, 0, ecx, 23, key_locker , Intel key locker support
+ 7, 0, ecx, 24, bus_lock_detect , OS bus-lock detection
+ 7, 0, ecx, 25, cldemote , CLDEMOTE instruction
+ 7, 0, ecx, 27, movdiri , MOVDIRI instruction
+ 7, 0, ecx, 28, movdir64b , MOVDIR64B instruction
+ 7, 0, ecx, 29, enqcmd , Enqueue stores supported (ENQCMD{,S})
+ 7, 0, ecx, 30, sgx_lc , Intel SGX launch configuration
+ 7, 0, ecx, 31, pks , Protection keys for supervisor-mode pages
+ 7, 0, edx, 1, sgx_keys , Intel SGX attestation services
+ 7, 0, edx, 2, avx512_4vnniw , AVX-512 neural network instructions
+ 7, 0, edx, 3, avx512_4fmaps , AVX-512 multiply accumulation single precision
+ 7, 0, edx, 4, fsrm , Fast short REP MOV
+ 7, 0, edx, 5, uintr , CPU supports user interrupts
+ 7, 0, edx, 8, avx512_vp2intersect , VP2INTERSECT{D,Q} instructions
+ 7, 0, edx, 9, srdbs_ctrl , SRBDS mitigation MSR available
+ 7, 0, edx, 10, md_clear , VERW MD_CLEAR microcode support
+ 7, 0, edx, 11, rtm_always_abort , XBEGIN (RTM transaction) always aborts
+ 7, 0, edx, 13, tsx_force_abort , MSR TSX_FORCE_ABORT, RTM_ABORT bit, supported
+ 7, 0, edx, 14, serialize , SERIALIZE instruction
+ 7, 0, edx, 15, hybrid_cpu , The CPU is identified as a 'hybrid part'
+ 7, 0, edx, 16, tsxldtrk , TSX suspend/resume load address tracking
+ 7, 0, edx, 18, pconfig , PCONFIG instruction
+ 7, 0, edx, 19, arch_lbr , Intel architectural LBRs
+ 7, 0, edx, 20, ibt , CET indirect branch tracking
+ 7, 0, edx, 22, amx_bf16 , AMX-BF16: tile bfloat16 support
+ 7, 0, edx, 23, avx512_fp16 , AVX-512 FP16 instructions
+ 7, 0, edx, 24, amx_tile , AMX-TILE: tile architecture support
+ 7, 0, edx, 25, amx_int8 , AMX-INT8: tile 8-bit integer support
+ 7, 0, edx, 26, spec_ctrl , Speculation Control (IBRS/IBPB: indirect branch restrictions)
+ 7, 0, edx, 27, intel_stibp , Single thread indirect branch predictors
+ 7, 0, edx, 28, flush_l1d , FLUSH L1D cache: IA32_FLUSH_CMD MSR
+ 7, 0, edx, 29, arch_capabilities , Intel IA32_ARCH_CAPABILITIES MSR
+ 7, 0, edx, 30, core_capabilities , IA32_CORE_CAPABILITIES MSR
+ 7, 0, edx, 31, spec_ctrl_ssbd , Speculative store bypass disable
+ 7, 1, eax, 4, avx_vnni , AVX-VNNI instructions
+ 7, 1, eax, 5, avx512_bf16 , AVX-512 bFloat16 instructions
+ 7, 1, eax, 6, lass , Linear address space separation
+ 7, 1, eax, 7, cmpccxadd , CMPccXADD instructions
+ 7, 1, eax, 8, arch_perfmon_ext , ArchPerfmonExt: CPUID leaf 0x23 is supported
+ 7, 1, eax, 10, fzrm , Fast zero-length REP MOVSB
+ 7, 1, eax, 11, fsrs , Fast short REP STOSB
+ 7, 1, eax, 12, fsrc , Fast Short REP CMPSB/SCASB
+ 7, 1, eax, 17, fred , FRED: Flexible return and event delivery transitions
+ 7, 1, eax, 18, lkgs , LKGS: Load 'kernel' (userspace) GS
+ 7, 1, eax, 19, wrmsrns , WRMSRNS instr (WRMSR-non-serializing)
+ 7, 1, eax, 21, amx_fp16 , AMX-FP16: FP16 tile operations
+ 7, 1, eax, 22, hreset , History reset support
+ 7, 1, eax, 23, avx_ifma , Integer fused multiply add
+ 7, 1, eax, 26, lam , Linear address masking
+ 7, 1, eax, 27, rd_wr_msrlist , RDMSRLIST/WRMSRLIST instructions
+ 7, 1, ebx, 0, intel_ppin , Protected processor inventory number (PPIN{,_CTL} MSRs)
+ 7, 1, edx, 4, avx_vnni_int8 , AVX-VNNI-INT8 instructions
+ 7, 1, edx, 5, avx_ne_convert , AVX-NE-CONVERT instructions
+ 7, 1, edx, 8, amx_complex , AMX-COMPLEX instructions (starting from Granite Rapids)
+ 7, 1, edx, 14, prefetchit_0_1 , PREFETCHIT0/1 instructions
+ 7, 1, edx, 18, cet_sss , CET supervisor shadow stacks safe to use
+ 7, 2, edx, 0, intel_psfd , Intel predictive store forward disable
+ 7, 2, edx, 1, ipred_ctrl , MSR bits IA32_SPEC_CTRL.IPRED_DIS_{U,S}
+ 7, 2, edx, 2, rrsba_ctrl , MSR bits IA32_SPEC_CTRL.RRSBA_DIS_{U,S}
+ 7, 2, edx, 3, ddp_ctrl , MSR bit IA32_SPEC_CTRL.DDPD_U
+ 7, 2, edx, 4, bhi_ctrl , MSR bit IA32_SPEC_CTRL.BHI_DIS_S
+ 7, 2, edx, 5, mcdt_no , MCDT mitigation not needed
+ 7, 2, edx, 6, uclock_disable , UC-lock disable is supported
+
+# Leaf 9H
+# Intel DCA (Direct Cache Access) enumeration
+
+ 9, 0, eax, 0, dca_enabled_in_bios , DCA is enabled in BIOS
+
+# Leaf AH
+# Intel PMU (Performance Monitoring Unit) enumeration
+
+ 0xa, 0, eax, 7:0, pmu_version , Performance monitoring unit version ID
+ 0xa, 0, eax, 15:8, pmu_n_gcounters , Number of general PMU counters per logical CPU
+ 0xa, 0, eax, 23:16, pmu_gcounters_nbits , Bitwidth of PMU general counters
+ 0xa, 0, eax, 31:24, pmu_cpuid_ebx_bits , Length of cpuid leaf 0xa EBX bit vector
+ 0xa, 0, ebx, 0, no_core_cycle_evt , Core cycle event not available
+ 0xa, 0, ebx, 1, no_insn_retired_evt , Instruction retired event not available
+ 0xa, 0, ebx, 2, no_refcycle_evt , Reference cycles event not available
+ 0xa, 0, ebx, 3, no_llc_ref_evt , LLC-reference event not available
+ 0xa, 0, ebx, 4, no_llc_miss_evt , LLC-misses event not available
+ 0xa, 0, ebx, 5, no_br_insn_ret_evt , Branch instruction retired event not available
+ 0xa, 0, ebx, 6, no_br_mispredict_evt , Branch mispredict retired event not available
+ 0xa, 0, ebx, 7, no_td_slots_evt , Topdown slots event not available
+ 0xa, 0, ecx, 31:0, pmu_fcounters_bitmap , Fixed-function PMU counters support bitmap
+ 0xa, 0, edx, 4:0, pmu_n_fcounters , Number of fixed PMU counters
+ 0xa, 0, edx, 12:5, pmu_fcounters_nbits , Bitwidth of PMU fixed counters
+ 0xa, 0, edx, 15, anythread_depr , AnyThread deprecation
+
+# Leaf BH
+# CPUs v1 extended topology enumeration
+
+ 0xb, 1:0, eax, 4:0, x2apic_id_shift , Bit width of this level (previous levels inclusive)
+ 0xb, 1:0, ebx, 15:0, domain_lcpus_count , Logical CPUs count across all instances of this domain
+ 0xb, 1:0, ecx, 7:0, domain_nr , This domain level (subleaf ID)
+ 0xb, 1:0, ecx, 15:8, domain_type , This domain type
+ 0xb, 1:0, edx, 31:0, x2apic_id , x2APIC ID of current logical CPU
+
+# Leaf DH
+# Processor extended state enumeration
+
+ 0xd, 0, eax, 0, xcr0_x87 , XCR0.X87 (bit 0) supported
+ 0xd, 0, eax, 1, xcr0_sse , XCR0.SEE (bit 1) supported
+ 0xd, 0, eax, 2, xcr0_avx , XCR0.AVX (bit 2) supported
+ 0xd, 0, eax, 3, xcr0_mpx_bndregs , XCR0.BNDREGS (bit 3) supported (MPX BND0-BND3 regs)
+ 0xd, 0, eax, 4, xcr0_mpx_bndcsr , XCR0.BNDCSR (bit 4) supported (MPX BNDCFGU/BNDSTATUS regs)
+ 0xd, 0, eax, 5, xcr0_avx512_opmask , XCR0.OPMASK (bit 5) supported (AVX-512 k0-k7 regs)
+ 0xd, 0, eax, 6, xcr0_avx512_zmm_hi256 , XCR0.ZMM_Hi256 (bit 6) supported (AVX-512 ZMM0->ZMM7/15 regs)
+ 0xd, 0, eax, 7, xcr0_avx512_hi16_zmm , XCR0.HI16_ZMM (bit 7) supported (AVX-512 ZMM16->ZMM31 regs)
+ 0xd, 0, eax, 9, xcr0_pkru , XCR0.PKRU (bit 9) supported (XSAVE PKRU reg)
+ 0xd, 0, eax, 11, xcr0_cet_u , AMD XCR0.CET_U (bit 11) supported (CET supervisor state)
+ 0xd, 0, eax, 12, xcr0_cet_s , AMD XCR0.CET_S (bit 12) support (CET user state)
+ 0xd, 0, eax, 17, xcr0_tileconfig , XCR0.TILECONFIG (bit 17) supported (AMX can manage TILECONFIG)
+ 0xd, 0, eax, 18, xcr0_tiledata , XCR0.TILEDATA (bit 18) supported (AMX can manage TILEDATA)
+ 0xd, 0, ebx, 31:0, xsave_sz_xcr0_enabled , XSAVE/XRSTR area byte size, for XCR0 enabled features
+ 0xd, 0, ecx, 31:0, xsave_sz_max , XSAVE/XRSTR area max byte size, all CPU features
+ 0xd, 0, edx, 30, xcr0_lwp , AMD XCR0.LWP (bit 62) supported (Light-weight Profiling)
+ 0xd, 1, eax, 0, xsaveopt , XSAVEOPT instruction
+ 0xd, 1, eax, 1, xsavec , XSAVEC instruction
+ 0xd, 1, eax, 2, xgetbv1 , XGETBV instruction with ECX = 1
+ 0xd, 1, eax, 3, xsaves , XSAVES/XRSTORS instructions (and XSS MSR)
+ 0xd, 1, eax, 4, xfd , Extended feature disable support
+ 0xd, 1, ebx, 31:0, xsave_sz_xcr0_xmms_enabled, XSAVE area size, all XCR0 and XMMS features enabled
+ 0xd, 1, ecx, 8, xss_pt , PT state, supported
+ 0xd, 1, ecx, 10, xss_pasid , PASID state, supported
+ 0xd, 1, ecx, 11, xss_cet_u , CET user state, supported
+ 0xd, 1, ecx, 12, xss_cet_p , CET supervisor state, supported
+ 0xd, 1, ecx, 13, xss_hdc , HDC state, supported
+ 0xd, 1, ecx, 14, xss_uintr , UINTR state, supported
+ 0xd, 1, ecx, 15, xss_lbr , LBR state, supported
+ 0xd, 1, ecx, 16, xss_hwp , HWP state, supported
+ 0xd, 63:2, eax, 31:0, xsave_sz , Size of save area for subleaf-N feature, in bytes
+ 0xd, 63:2, ebx, 31:0, xsave_offset , Offset of save area for subleaf-N feature, in bytes
+ 0xd, 63:2, ecx, 0, is_xss_bit , Subleaf N describes an XSS bit, otherwise XCR0 bit
+ 0xd, 63:2, ecx, 1, compacted_xsave_64byte_aligned, When compacted, subleaf-N feature xsave area is 64-byte aligned
+
+# Leaf FH
+# Intel RDT / AMD PQoS resource monitoring
+
+ 0xf, 0, ebx, 31:0, core_rmid_max , RMID max, within this core, all types (0-based)
+ 0xf, 0, edx, 1, cqm_llc , LLC QoS-monitoring supported
+ 0xf, 1, eax, 7:0, l3c_qm_bitwidth , L3 QoS-monitoring counter bitwidth (24-based)
+ 0xf, 1, eax, 8, l3c_qm_overflow_bit , QM_CTR MSR bit 61 is an overflow bit
+ 0xf, 1, ebx, 31:0, l3c_qm_conver_factor , QM_CTR MSR conversion factor to bytes
+ 0xf, 1, ecx, 31:0, l3c_qm_rmid_max , L3 QoS-monitoring max RMID
+ 0xf, 1, edx, 0, cqm_occup_llc , L3 QoS occupancy monitoring supported
+ 0xf, 1, edx, 1, cqm_mbm_total , L3 QoS total bandwidth monitoring supported
+ 0xf, 1, edx, 2, cqm_mbm_local , L3 QoS local bandwidth monitoring supported
# Leaf 10H
-# Intel RDT Allocation
-
- 0x10, 0, EBX, 1, l3c_rdt_alloc, L3 Cache Allocation supported
- 0x10, 0, EBX, 2, l2c_rdt_alloc, L2 Cache Allocation supported
- 0x10, 0, EBX, 3, mem_bw_alloc, Memory Bandwidth Allocation supported
-
+# Intel RDT / AMD PQoS allocation enumeration
+
+ 0x10, 0, ebx, 1, cat_l3 , L3 Cache Allocation Technology supported
+ 0x10, 0, ebx, 2, cat_l2 , L2 Cache Allocation Technology supported
+ 0x10, 0, ebx, 3, mba , Memory Bandwidth Allocation supported
+ 0x10, 2:1, eax, 4:0, cat_cbm_len , L3/L2_CAT capacity bitmask length, minus-one notation
+ 0x10, 2:1, ebx, 31:0, cat_units_bitmap , L3/L2_CAT bitmap of allocation units
+ 0x10, 2:1, ecx, 1, l3_cat_cos_infreq_updates, L3_CAT COS updates should be infrequent
+ 0x10, 2:1, ecx, 2, cdp_l3 , L3/L2_CAT CDP (Code and Data Prioritization)
+ 0x10, 2:1, ecx, 3, cat_sparse_1s , L3/L2_CAT non-contiguous 1s value supported
+ 0x10, 2:1, edx, 15:0, cat_cos_max , L3/L2_CAT max COS (Class of Service) supported
+ 0x10, 3, eax, 11:0, mba_max_delay , Max MBA throttling value; minus-one notation
+ 0x10, 3, ecx, 0, per_thread_mba , Per-thread MBA controls are supported
+ 0x10, 3, ecx, 2, mba_delay_linear , Delay values are linear
+ 0x10, 3, edx, 15:0, mba_cos_max , MBA max Class of Service supported
# Leaf 12H
-# SGX Capability
-#
-# Some detailed SGX features not added yet
-
- 0x12, 0, EAX, 0, sgx1, L3 Cache Allocation supported
- 0x12, 1, EAX, 0, sgx2, L3 Cache Allocation supported
-
+# Intel Software Guard Extensions (SGX) enumeration
+
+ 0x12, 0, eax, 0, sgx1 , SGX1 leaf functions supported
+ 0x12, 0, eax, 1, sgx2 , SGX2 leaf functions supported
+ 0x12, 0, eax, 5, enclv_leaves , ENCLV leaves (E{INC,DEC}VIRTCHILD, ESETCONTEXT) supported
+ 0x12, 0, eax, 6, encls_leaves , ENCLS leaves (ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC) supported
+ 0x12, 0, eax, 7, enclu_everifyreport2 , ENCLU leaf EVERIFYREPORT2 supported
+ 0x12, 0, eax, 10, encls_eupdatesvn , ENCLS leaf EUPDATESVN supported
+ 0x12, 0, eax, 11, sgx_edeccssa , ENCLU leaf EDECCSSA supported
+ 0x12, 0, ebx, 0, miscselect_exinfo , SSA.MISC frame: reporting #PF and #GP exceptions inside enclave supported
+ 0x12, 0, ebx, 1, miscselect_cpinfo , SSA.MISC frame: reporting #CP exceptions inside enclave supported
+ 0x12, 0, edx, 7:0, max_enclave_sz_not64 , Maximum enclave size in non-64-bit mode (log2)
+ 0x12, 0, edx, 15:8, max_enclave_sz_64 , Maximum enclave size in 64-bit mode (log2)
+ 0x12, 1, eax, 0, secs_attr_init , ATTRIBUTES.INIT supported (enclave initialized by EINIT)
+ 0x12, 1, eax, 1, secs_attr_debug , ATTRIBUTES.DEBUG supported (enclave permits debugger read/write)
+ 0x12, 1, eax, 2, secs_attr_mode64bit , ATTRIBUTES.MODE64BIT supported (enclave runs in 64-bit mode)
+ 0x12, 1, eax, 4, secs_attr_provisionkey , ATTRIBUTES.PROVISIONKEY supported (provisioning key available)
+ 0x12, 1, eax, 5, secs_attr_einittoken_key, ATTRIBUTES.EINITTOKEN_KEY supported (EINIT token key available)
+ 0x12, 1, eax, 6, secs_attr_cet , ATTRIBUTES.CET supported (enable CET attributes)
+ 0x12, 1, eax, 7, secs_attr_kss , ATTRIBUTES.KSS supported (Key Separation and Sharing enabled)
+ 0x12, 1, eax, 10, secs_attr_aexnotify , ATTRIBUTES.AEXNOTIFY supported (enclave threads may get AEX notifications
+ 0x12, 1, ecx, 0, xfrm_x87 , Enclave XFRM.X87 (bit 0) supported
+ 0x12, 1, ecx, 1, xfrm_sse , Enclave XFRM.SEE (bit 1) supported
+ 0x12, 1, ecx, 2, xfrm_avx , Enclave XFRM.AVX (bit 2) supported
+ 0x12, 1, ecx, 3, xfrm_mpx_bndregs , Enclave XFRM.BNDREGS (bit 3) supported (MPX BND0-BND3 regs)
+ 0x12, 1, ecx, 4, xfrm_mpx_bndcsr , Enclave XFRM.BNDCSR (bit 4) supported (MPX BNDCFGU/BNDSTATUS regs)
+ 0x12, 1, ecx, 5, xfrm_avx512_opmask , Enclave XFRM.OPMASK (bit 5) supported (AVX-512 k0-k7 regs)
+ 0x12, 1, ecx, 6, xfrm_avx512_zmm_hi256 , Enclave XFRM.ZMM_Hi256 (bit 6) supported (AVX-512 ZMM0->ZMM7/15 regs)
+ 0x12, 1, ecx, 7, xfrm_avx512_hi16_zmm , Enclave XFRM.HI16_ZMM (bit 7) supported (AVX-512 ZMM16->ZMM31 regs)
+ 0x12, 1, ecx, 9, xfrm_pkru , Enclave XFRM.PKRU (bit 9) supported (XSAVE PKRU reg)
+ 0x12, 1, ecx, 17, xfrm_tileconfig , Enclave XFRM.TILECONFIG (bit 17) supported (AMX can manage TILECONFIG)
+ 0x12, 1, ecx, 18, xfrm_tiledata , Enclave XFRM.TILEDATA (bit 18) supported (AMX can manage TILEDATA)
+ 0x12, 31:2, eax, 3:0, subleaf_type , Subleaf type (dictates output layout)
+ 0x12, 31:2, eax, 31:12, epc_sec_base_addr_0 , EPC section base addr, bits[12:31]
+ 0x12, 31:2, ebx, 19:0, epc_sec_base_addr_1 , EPC section base addr, bits[32:51]
+ 0x12, 31:2, ecx, 3:0, epc_sec_type , EPC section type / property encoding
+ 0x12, 31:2, ecx, 31:12, epc_sec_size_0 , EPC section size, bits[12:31]
+ 0x12, 31:2, edx, 19:0, epc_sec_size_1 , EPC section size, bits[32:51]
# Leaf 14H
-# Intel Processor Tracer
-#
+# Intel Processor Trace enumeration
+
+ 0x14, 0, eax, 31:0, pt_max_subleaf , Max cpuid 0x14 subleaf
+ 0x14, 0, ebx, 0, cr3_filtering , IA32_RTIT_CR3_MATCH is accessible
+ 0x14, 0, ebx, 1, psb_cyc , Configurable PSB and cycle-accurate mode
+ 0x14, 0, ebx, 2, ip_filtering , IP/TraceStop filtering; Warm-reset PT MSRs preservation
+ 0x14, 0, ebx, 3, mtc_timing , MTC timing packet; COFI-based packets suppression
+ 0x14, 0, ebx, 4, ptwrite , PTWRITE support
+ 0x14, 0, ebx, 5, power_event_trace , Power Event Trace support
+ 0x14, 0, ebx, 6, psb_pmi_preserve , PSB and PMI preservation support
+ 0x14, 0, ebx, 7, event_trace , Event Trace packet generation through IA32_RTIT_CTL.EventEn
+ 0x14, 0, ebx, 8, tnt_disable , TNT packet generation disable through IA32_RTIT_CTL.DisTNT
+ 0x14, 0, ecx, 0, topa_output , ToPA output scheme support
+ 0x14, 0, ecx, 1, topa_multiple_entries , ToPA tables can hold multiple entries
+ 0x14, 0, ecx, 2, single_range_output , Single-range output scheme supported
+ 0x14, 0, ecx, 3, trance_transport_output, Trace Transport subsystem output support
+ 0x14, 0, ecx, 31, ip_payloads_lip , IP payloads have LIP values (CS base included)
+ 0x14, 1, eax, 2:0, num_address_ranges , Filtering number of configurable Address Ranges
+ 0x14, 1, eax, 31:16, mtc_periods_bmp , Bitmap of supported MTC period encodings
+ 0x14, 1, ebx, 15:0, cycle_thresholds_bmp , Bitmap of supported Cycle Threshold encodings
+ 0x14, 1, ebx, 31:16, psb_periods_bmp , Bitmap of supported Configurable PSB frequency encodings
# Leaf 15H
-# Time Stamp Counter and Nominal Core Crystal Clock Information
+# Intel TSC (Time Stamp Counter) enumeration
- 0x15, 0, EAX, 31:0, tsc_denominator, The denominator of the TSC/”core crystal clock” ratio
- 0x15, 0, EBX, 31:0, tsc_numerator, The numerator of the TSC/”core crystal clock” ratio
- 0x15, 0, ECX, 31:0, nom_freq, Nominal frequency of the core crystal clock in Hz
+ 0x15, 0, eax, 31:0, tsc_denominator , Denominator of the TSC/'core crystal clock' ratio
+ 0x15, 0, ebx, 31:0, tsc_numerator , Numerator of the TSC/'core crystal clock' ratio
+ 0x15, 0, ecx, 31:0, cpu_crystal_hz , Core crystal clock nominal frequency, in Hz
# Leaf 16H
-# Processor Frequency Information
+# Intel processor fequency enumeration
- 0x16, 0, EAX, 15:0, cpu_base_freq, Processor Base Frequency in MHz
- 0x16, 0, EBX, 15:0, cpu_max_freq, Maximum Frequency in MHz
- 0x16, 0, ECX, 15:0, bus_freq, Bus (Reference) Frequency in MHz
+ 0x16, 0, eax, 15:0, cpu_base_mhz , Processor base frequency, in MHz
+ 0x16, 0, ebx, 15:0, cpu_max_mhz , Processor max frequency, in MHz
+ 0x16, 0, ecx, 15:0, bus_mhz , Bus reference frequency, in MHz
# Leaf 17H
-# System-On-Chip Vendor Attribute
-
- 0x17, 0, EAX, 31:0, max_socid, Maximum input value of supported sub-leaf
- 0x17, 0, EBX, 15:0, soc_vid, SOC Vendor ID
- 0x17, 0, EBX, 16, std_vid, SOC Vendor ID is assigned via an industry standard scheme
- 0x17, 0, ECX, 31:0, soc_pid, SOC Project ID assigned by vendor
- 0x17, 0, EDX, 31:0, soc_sid, SOC Stepping ID
+# Intel SoC vendor attributes enumeration
+
+ 0x17, 0, eax, 31:0, soc_max_subleaf , Max cpuid leaf 0x17 subleaf
+ 0x17, 0, ebx, 15:0, soc_vendor_id , SoC vendor ID
+ 0x17, 0, ebx, 16, is_vendor_scheme , Assigned by industry enumaeratoion scheme (not Intel)
+ 0x17, 0, ecx, 31:0, soc_proj_id , SoC project ID, assigned by vendor
+ 0x17, 0, edx, 31:0, soc_stepping_id , Soc project stepping ID, assigned by vendor
+ 0x17, 3:1, eax, 31:0, vendor_brand_a , Vendor Brand ID string, bytes subleaf_nr * (0 -> 3)
+ 0x17, 3:1, ebx, 31:0, vendor_brand_b , Vendor Brand ID string, bytes subleaf_nr * (4 -> 7)
+ 0x17, 3:1, ecx, 31:0, vendor_brand_c , Vendor Brand ID string, bytes subleaf_nr * (8 -> 11)
+ 0x17, 3:1, edx, 31:0, vendor_brand_d , Vendor Brand ID string, bytes subleaf_nr * (12 -> 15)
# Leaf 18H
-# Deterministic Address Translation Parameters
-
+# Intel determenestic address translation (TLB) parameters
+
+ 0x18, 31:0, eax, 31:0, tlb_max_subleaf , Max cpuid 0x18 subleaf
+ 0x18, 31:0, ebx, 0, tlb_4k_page , TLB 4KB-page entries supported
+ 0x18, 31:0, ebx, 1, tlb_2m_page , TLB 2MB-page entries supported
+ 0x18, 31:0, ebx, 2, tlb_4m_page , TLB 4MB-page entries supported
+ 0x18, 31:0, ebx, 3, tlb_1g_page , TLB 1GB-page entries supported
+ 0x18, 31:0, ebx, 10:8, hard_partitioning , (Hard/Soft) partitioning between logical CPUs sharing this struct
+ 0x18, 31:0, ebx, 31:16, n_way_associative , Ways of associativity
+ 0x18, 31:0, ecx, 31:0, n_sets , Number of sets
+ 0x18, 31:0, edx, 4:0, tlb_type , Translation cache type (TLB type)
+ 0x18, 31:0, edx, 7:5, tlb_cache_level , Translation cache level (1-based)
+ 0x18, 31:0, edx, 8, is_fully_associative , Fully-associative structure
+ 0x18, 31:0, edx, 25:14, tlb_max_addressible_ids, Max num of addressible IDs for logical CPUs sharing this TLB - 1
# Leaf 19H
-# Key Locker Leaf
+# Intel Key Locker enumeration
+ 0x19, 0, eax, 0, kl_cpl0_only , CPL0-only key Locker restriction supported
+ 0x19, 0, eax, 1, kl_no_encrypt , No-encrypt key locker restriction supported
+ 0x19, 0, eax, 2, kl_no_decrypt , No-decrypt key locker restriction supported
+ 0x19, 0, ebx, 0, aes_keylocker , AES key locker instructions supported
+ 0x19, 0, ebx, 2, aes_keylocker_wide , AES wide key locker instructions supported
+ 0x19, 0, ebx, 4, kl_msr_iwkey , Key locker MSRs and IWKEY backups supported
+ 0x19, 0, ecx, 0, loadiwkey_no_backup , LOADIWKEY NoBackup parameter supported
+ 0x19, 0, ecx, 1, iwkey_rand , IWKEY randomization (KeySource encoding 1) supported
# Leaf 1AH
-# Hybrid Information
-
- 0x1A, 0, EAX, 31:24, core_type, 20H-Intel_Atom 40H-Intel_Core
-
+# Intel hybrid CPUs identification (e.g. Atom, Core)
+
+ 0x1a, 0, eax, 23:0, core_native_model , This core's native model ID
+ 0x1a, 0, eax, 31:24, core_type , This core's type
+
+# Leaf 1BH
+# Intel PCONFIG (Platform configuration) enumeration
+
+ 0x1b, 31:0, eax, 11:0, pconfig_subleaf_type , CPUID 0x1b subleaf type
+ 0x1b, 31:0, ebx, 31:0, pconfig_target_id_x , A supported PCONFIG target ID
+ 0x1b, 31:0, ecx, 31:0, pconfig_target_id_y , A supported PCONFIG target ID
+ 0x1b, 31:0, edx, 31:0, pconfig_target_id_z , A supported PCONFIG target ID
+
+# Leaf 1CH
+# Intel LBR (Last Branch Record) enumeration
+
+ 0x1c, 0, eax, 0, lbr_depth_8 , Max stack depth (number of LBR entries) = 8
+ 0x1c, 0, eax, 1, lbr_depth_16 , Max stack depth (number of LBR entries) = 16
+ 0x1c, 0, eax, 2, lbr_depth_24 , Max stack depth (number of LBR entries) = 24
+ 0x1c, 0, eax, 3, lbr_depth_32 , Max stack depth (number of LBR entries) = 32
+ 0x1c, 0, eax, 4, lbr_depth_40 , Max stack depth (number of LBR entries) = 40
+ 0x1c, 0, eax, 5, lbr_depth_48 , Max stack depth (number of LBR entries) = 48
+ 0x1c, 0, eax, 6, lbr_depth_56 , Max stack depth (number of LBR entries) = 56
+ 0x1c, 0, eax, 7, lbr_depth_64 , Max stack depth (number of LBR entries) = 64
+ 0x1c, 0, eax, 30, lbr_deep_c_reset , LBRs maybe cleared on MWAIT C-state > C1
+ 0x1c, 0, eax, 31, lbr_ip_is_lip , LBR IP contain Last IP, otherwise effective IP
+ 0x1c, 0, ebx, 0, lbr_cpl , CPL filtering (non-zero IA32_LBR_CTL[2:1]) supported
+ 0x1c, 0, ebx, 1, lbr_branch_filter , Branch filtering (non-zero IA32_LBR_CTL[22:16]) supported
+ 0x1c, 0, ebx, 2, lbr_call_stack , Call-stack mode (IA32_LBR_CTL[3] = 1) supported
+ 0x1c, 0, ecx, 0, lbr_mispredict , Branch misprediction bit supported (IA32_LBR_x_INFO[63])
+ 0x1c, 0, ecx, 1, lbr_timed_lbr , Timed LBRs (CPU cycles since last LBR entry) supported
+ 0x1c, 0, ecx, 2, lbr_branch_type , Branch type field (IA32_LBR_INFO_x[59:56]) supported
+ 0x1c, 0, ecx, 19:16, lbr_events_gpc_bmp , LBR PMU-events logging support; bitmap for first 4 GP (general-purpose) Counters
+
+# Leaf 1DH
+# Intel AMX (Advanced Matrix Extensions) tile information
+
+ 0x1d, 0, eax, 31:0, amx_max_palette , Highest palette ID / subleaf ID
+ 0x1d, 1, eax, 15:0, amx_palette_size , AMX palette total tiles size, in bytes
+ 0x1d, 1, eax, 31:16, amx_tile_size , AMX single tile's size, in bytes
+ 0x1d, 1, ebx, 15:0, amx_tile_row_size , AMX tile single row's size, in bytes
+ 0x1d, 1, ebx, 31:16, amx_palette_nr_tiles , AMX palette number of tiles
+ 0x1d, 1, ecx, 15:0, amx_tile_nr_rows , AMX tile max number of rows
+
+# Leaf 1EH
+# Intel AMX, TMUL (Tile-matrix MULtiply) accelerator unit enumeration
+
+ 0x1e, 0, ebx, 7:0, tmul_maxk , TMUL unit maximum height, K (rows or columns)
+ 0x1e, 0, ebx, 23:8, tmul_maxn , TMUL unit maxiumum SIMD dimension, N (column bytes)
# Leaf 1FH
-# V2 Extended Topology - A preferred superset to leaf 0BH
-
-
-# According to SDM
-# 40000000H - 4FFFFFFFH is invalid range
+# Intel extended topology enumeration v2
+
+ 0x1f, 5:0, eax, 4:0, x2apic_id_shift , Bit width of this level (previous levels inclusive)
+ 0x1f, 5:0, ebx, 15:0, domain_lcpus_count , Logical CPUs count across all instances of this domain
+ 0x1f, 5:0, ecx, 7:0, domain_level , This domain level (subleaf ID)
+ 0x1f, 5:0, ecx, 15:8, domain_type , This domain type
+ 0x1f, 5:0, edx, 31:0, x2apic_id , x2APIC ID of current logical CPU
+
+# Leaf 20H
+# Intel HRESET (History Reset) enumeration
+
+ 0x20, 0, eax, 31:0, hreset_nr_subleaves , CPUID 0x20 max subleaf + 1
+ 0x20, 0, ebx, 0, hreset_thread_director , HRESET of Intel thread director is supported
+
+# Leaf 21H
+# Intel TD (Trust Domain) guest execution environment enumeration
+
+ 0x21, 0, ebx, 31:0, tdx_vendorid_0 , TDX vendor ID string bytes 0 - 3
+ 0x21, 0, ecx, 31:0, tdx_vendorid_2 , CPU vendor ID string bytes 8 - 11
+ 0x21, 0, edx, 31:0, tdx_vendorid_1 , CPU vendor ID string bytes 4 - 7
+
+# Leaf 23H
+# Intel Architectural Performance Monitoring Extended (ArchPerfmonExt)
+
+ 0x23, 0, eax, 1, subleaf_1_counters , Subleaf 1, PMU counters bitmaps, is valid
+ 0x23, 0, eax, 3, subleaf_3_events , Subleaf 3, PMU events bitmaps, is valid
+ 0x23, 0, ebx, 0, unitmask2 , IA32_PERFEVTSELx MSRs UnitMask2 is supported
+ 0x23, 0, ebx, 1, zbit , IA32_PERFEVTSELx MSRs Z-bit is supported
+ 0x23, 1, eax, 31:0, pmu_gp_counters_bitmap , General-purpose PMU counters bitmap
+ 0x23, 1, ebx, 31:0, pmu_f_counters_bitmap , Fixed PMU counters bitmap
+ 0x23, 3, eax, 0, core_cycles_evt , Core cycles event supported
+ 0x23, 3, eax, 1, insn_retired_evt , Instructions retired event supported
+ 0x23, 3, eax, 2, ref_cycles_evt , Reference cycles event supported
+ 0x23, 3, eax, 3, llc_refs_evt , Last-level cache references event supported
+ 0x23, 3, eax, 4, llc_misses_evt , Last-level cache misses event supported
+ 0x23, 3, eax, 5, br_insn_ret_evt , Branch instruction retired event supported
+ 0x23, 3, eax, 6, br_mispr_evt , Branch mispredict retired event supported
+ 0x23, 3, eax, 7, td_slots_evt , Topdown slots event supported
+ 0x23, 3, eax, 8, td_backend_bound_evt , Topdown backend bound event supported
+ 0x23, 3, eax, 9, td_bad_spec_evt , Topdown bad speculation event supported
+ 0x23, 3, eax, 10, td_frontend_bound_evt , Topdown frontend bound event supported
+ 0x23, 3, eax, 11, td_retiring_evt , Topdown retiring event support
+
+# Leaf 40000000H
+# Maximum hypervisor standard leaf + hypervisor vendor string
+
+0x40000000, 0, eax, 31:0, max_hyp_leaf , Maximum hypervisor standard leaf number
+0x40000000, 0, ebx, 31:0, hypervisor_id_0 , Hypervisor ID string bytes 0 - 3
+0x40000000, 0, ecx, 31:0, hypervisor_id_1 , Hypervisor ID string bytes 4 - 7
+0x40000000, 0, edx, 31:0, hypervisor_id_2 , Hypervisor ID string bytes 8 - 11
+
+# Leaf 80000000H
+# Maximum extended leaf number + CPU vendor string (AMD)
+
+0x80000000, 0, eax, 31:0, max_ext_leaf , Maximum extended cpuid leaf supported
+0x80000000, 0, ebx, 31:0, cpu_vendorid_0 , Vendor ID string bytes 0 - 3
+0x80000000, 0, ecx, 31:0, cpu_vendorid_2 , Vendor ID string bytes 8 - 11
+0x80000000, 0, edx, 31:0, cpu_vendorid_1 , Vendor ID string bytes 4 - 7
# Leaf 80000001H
-# Extended Processor Signature and Feature Bits
-
-0x80000001, 0, EAX, 27:20, extfamily, Extended family
-0x80000001, 0, EAX, 19:16, extmodel, Extended model
-0x80000001, 0, EAX, 11:8, basefamily, Description of Family
-0x80000001, 0, EAX, 11:8, basemodel, Model numbers vary with product
-0x80000001, 0, EAX, 3:0, stepping, Processor stepping (revision) for a specific model
-
-0x80000001, 0, EBX, 31:28, pkgtype, Specifies the package type
-
-0x80000001, 0, ECX, 0, lahf_lm, LAHF/SAHF available in 64-bit mode
-0x80000001, 0, ECX, 1, cmplegacy, Core multi-processing legacy mode
-0x80000001, 0, ECX, 2, svm, Indicates support for: VMRUN, VMLOAD, VMSAVE, CLGI, VMMCALL, and INVLPGA
-0x80000001, 0, ECX, 3, extapicspace, Extended APIC register space
-0x80000001, 0, ECX, 4, altmovecr8, Indicates support for LOCK MOV CR0 means MOV CR8
-0x80000001, 0, ECX, 5, lzcnt, LZCNT
-0x80000001, 0, ECX, 6, sse4a, EXTRQ, INSERTQ, MOVNTSS, and MOVNTSD instruction support
-0x80000001, 0, ECX, 7, misalignsse, Misaligned SSE Mode
-0x80000001, 0, ECX, 8, prefetchw, PREFETCHW
-0x80000001, 0, ECX, 9, osvw, OS Visible Work-around support
-0x80000001, 0, ECX, 10, ibs, Instruction Based Sampling
-0x80000001, 0, ECX, 11, xop, Extended operation support
-0x80000001, 0, ECX, 12, skinit, SKINIT and STGI support
-0x80000001, 0, ECX, 13, wdt, Watchdog timer support
-0x80000001, 0, ECX, 15, lwp, Lightweight profiling support
-0x80000001, 0, ECX, 16, fma4, Four-operand FMA instruction support
-0x80000001, 0, ECX, 17, tce, Translation cache extension
-0x80000001, 0, ECX, 22, TopologyExtensions, Indicates support for Core::X86::Cpuid::CachePropEax0 and Core::X86::Cpuid::ExtApicId
-0x80000001, 0, ECX, 23, perfctrextcore, Indicates support for Core::X86::Msr::PERF_CTL0 - 5 and Core::X86::Msr::PERF_CTR
-0x80000001, 0, ECX, 24, perfctrextdf, Indicates support for Core::X86::Msr::DF_PERF_CTL and Core::X86::Msr::DF_PERF_CTR
-0x80000001, 0, ECX, 26, databreakpointextension, Indicates data breakpoint support for Core::X86::Msr::DR0_ADDR_MASK, Core::X86::Msr::DR1_ADDR_MASK, Core::X86::Msr::DR2_ADDR_MASK and Core::X86::Msr::DR3_ADDR_MASK
-0x80000001, 0, ECX, 27, perftsc, Performance time-stamp counter supported
-0x80000001, 0, ECX, 28, perfctrextllc, Indicates support for L3 performance counter extensions
-0x80000001, 0, ECX, 29, mwaitextended, MWAITX and MONITORX capability is supported
-0x80000001, 0, ECX, 30, admskextn, Indicates support for address mask extension (to 32 bits and to all 4 DRs) for instruction breakpoints
-
-0x80000001, 0, EDX, 0, fpu, x87 floating point unit on-chip
-0x80000001, 0, EDX, 1, vme, Virtual-mode enhancements
-0x80000001, 0, EDX, 2, de, Debugging extensions, IO breakpoints, CR4.DE
-0x80000001, 0, EDX, 3, pse, Page-size extensions (4 MB pages)
-0x80000001, 0, EDX, 4, tsc, Time stamp counter, RDTSC/RDTSCP instructions, CR4.TSD
-0x80000001, 0, EDX, 5, msr, Model-specific registers (MSRs), with RDMSR and WRMSR instructions
-0x80000001, 0, EDX, 6, pae, Physical-address extensions (PAE)
-0x80000001, 0, EDX, 7, mce, Machine Check Exception, CR4.MCE
-0x80000001, 0, EDX, 8, cmpxchg8b, CMPXCHG8B instruction
-0x80000001, 0, EDX, 9, apic, advanced programmable interrupt controller (APIC) exists and is enabled
-0x80000001, 0, EDX, 11, sysret, SYSCALL/SYSRET supported
-0x80000001, 0, EDX, 12, mtrr, Memory-type range registers
-0x80000001, 0, EDX, 13, pge, Page global extension, CR4.PGE
-0x80000001, 0, EDX, 14, mca, Machine check architecture, MCG_CAP
-0x80000001, 0, EDX, 15, cmov, Conditional move instructions, CMOV, FCOMI, FCMOV
-0x80000001, 0, EDX, 16, pat, Page attribute table
-0x80000001, 0, EDX, 17, pse36, Page-size extensions
-0x80000001, 0, EDX, 20, exec_dis, Execute Disable Bit available
-0x80000001, 0, EDX, 22, mmxext, AMD extensions to MMX instructions
-0x80000001, 0, EDX, 23, mmx, MMX instructions
-0x80000001, 0, EDX, 24, fxsr, FXSAVE and FXRSTOR instructions
-0x80000001, 0, EDX, 25, ffxsr, FXSAVE and FXRSTOR instruction optimizations
-0x80000001, 0, EDX, 26, 1gb_page, 1GB page supported
-0x80000001, 0, EDX, 27, rdtscp, RDTSCP and IA32_TSC_AUX are available
-0x80000001, 0, EDX, 29, lm, 64b Architecture supported
-0x80000001, 0, EDX, 30, threednowext, AMD extensions to 3DNow! instructions
-0x80000001, 0, EDX, 31, threednow, 3DNow! instructions
-
-# Leaf 80000002H/80000003H/80000004H
-# Processor Brand String
+# Extended CPU feature identifiers
+
+0x80000001, 0, eax, 3:0, e_stepping_id , Stepping ID
+0x80000001, 0, eax, 7:4, e_base_model , Base processor model
+0x80000001, 0, eax, 11:8, e_base_family , Base processor family
+0x80000001, 0, eax, 19:16, e_ext_model , Extended processor model
+0x80000001, 0, eax, 27:20, e_ext_family , Extended processor family
+0x80000001, 0, ebx, 15:0, brand_id , Brand ID
+0x80000001, 0, ebx, 31:28, pkg_type , Package type
+0x80000001, 0, ecx, 0, lahf_lm , LAHF and SAHF in 64-bit mode
+0x80000001, 0, ecx, 1, cmp_legacy , Multi-processing legacy mode (No HT)
+0x80000001, 0, ecx, 2, svm , Secure Virtual Machine
+0x80000001, 0, ecx, 3, extapic , Extended APIC space
+0x80000001, 0, ecx, 4, cr8_legacy , LOCK MOV CR0 means MOV CR8
+0x80000001, 0, ecx, 5, abm , LZCNT advanced bit manipulation
+0x80000001, 0, ecx, 6, sse4a , SSE4A support
+0x80000001, 0, ecx, 7, misalignsse , Misaligned SSE mode
+0x80000001, 0, ecx, 8, 3dnowprefetch , 3DNow PREFETCH/PREFETCHW support
+0x80000001, 0, ecx, 9, osvw , OS visible workaround
+0x80000001, 0, ecx, 10, ibs , Instruction based sampling
+0x80000001, 0, ecx, 11, xop , XOP: extended operation (AVX instructions)
+0x80000001, 0, ecx, 12, skinit , SKINIT/STGI support
+0x80000001, 0, ecx, 13, wdt , Watchdog timer support
+0x80000001, 0, ecx, 15, lwp , Lightweight profiling
+0x80000001, 0, ecx, 16, fma4 , 4-operand FMA instruction
+0x80000001, 0, ecx, 17, tce , Translation cache extension
+0x80000001, 0, ecx, 19, nodeid_msr , NodeId MSR (0xc001100c)
+0x80000001, 0, ecx, 21, tbm , Trailing bit manipulations
+0x80000001, 0, ecx, 22, topoext , Topology Extensions (cpuid leaf 0x8000001d)
+0x80000001, 0, ecx, 23, perfctr_core , Core performance counter extensions
+0x80000001, 0, ecx, 24, perfctr_nb , NB/DF performance counter extensions
+0x80000001, 0, ecx, 26, bpext , Data access breakpoint extension
+0x80000001, 0, ecx, 27, ptsc , Performance time-stamp counter
+0x80000001, 0, ecx, 28, perfctr_llc , LLC (L3) performance counter extensions
+0x80000001, 0, ecx, 29, mwaitx , MWAITX/MONITORX support
+0x80000001, 0, ecx, 30, addr_mask_ext , Breakpoint address mask extension (to bit 31)
+0x80000001, 0, edx, 0, e_fpu , Floating-Point Unit on-chip (x87)
+0x80000001, 0, edx, 1, e_vme , Virtual-8086 Mode Extensions
+0x80000001, 0, edx, 2, e_de , Debugging Extensions
+0x80000001, 0, edx, 3, e_pse , Page Size Extension
+0x80000001, 0, edx, 4, e_tsc , Time Stamp Counter
+0x80000001, 0, edx, 5, e_msr , Model-Specific Registers (RDMSR and WRMSR support)
+0x80000001, 0, edx, 6, pae , Physical Address Extensions
+0x80000001, 0, edx, 7, mce , Machine Check Exception
+0x80000001, 0, edx, 8, cx8 , CMPXCHG8B instruction
+0x80000001, 0, edx, 9, apic , APIC on-chip
+0x80000001, 0, edx, 11, syscall , SYSCALL and SYSRET instructions
+0x80000001, 0, edx, 12, mtrr , Memory Type Range Registers
+0x80000001, 0, edx, 13, pge , Page Global Extensions
+0x80000001, 0, edx, 14, mca , Machine Check Architecture
+0x80000001, 0, edx, 15, cmov , Conditional Move Instruction
+0x80000001, 0, edx, 16, pat , Page Attribute Table
+0x80000001, 0, edx, 17, pse36 , Page Size Extension (36-bit)
+0x80000001, 0, edx, 19, mp , Out-of-spec AMD Multiprocessing bit
+0x80000001, 0, edx, 20, nx , No-execute page protection
+0x80000001, 0, edx, 22, mmxext , AMD MMX extensions
+0x80000001, 0, edx, 24, e_fxsr , FXSAVE and FXRSTOR instructions
+0x80000001, 0, edx, 25, fxsr_opt , FXSAVE and FXRSTOR optimizations
+0x80000001, 0, edx, 26, pdpe1gb , 1-GB large page support
+0x80000001, 0, edx, 27, rdtscp , RDTSCP instruction
+0x80000001, 0, edx, 29, lm , Long mode (x86-64, 64-bit support)
+0x80000001, 0, edx, 30, 3dnowext , AMD 3DNow extensions
+0x80000001, 0, edx, 31, 3dnow , 3DNow instructions
+
+# Leaf 80000002H
+# CPU brand ID string, bytes 0 - 15
+
+0x80000002, 0, eax, 31:0, cpu_brandid_0 , CPU brand ID string, bytes 0 - 3
+0x80000002, 0, ebx, 31:0, cpu_brandid_1 , CPU brand ID string, bytes 4 - 7
+0x80000002, 0, ecx, 31:0, cpu_brandid_2 , CPU brand ID string, bytes 8 - 11
+0x80000002, 0, edx, 31:0, cpu_brandid_3 , CPU brand ID string, bytes 12 - 15
+
+# Leaf 80000003H
+# CPU brand ID string, bytes 16 - 31
+
+0x80000003, 0, eax, 31:0, cpu_brandid_4 , CPU brand ID string bytes, 16 - 19
+0x80000003, 0, ebx, 31:0, cpu_brandid_5 , CPU brand ID string bytes, 20 - 23
+0x80000003, 0, ecx, 31:0, cpu_brandid_6 , CPU brand ID string bytes, 24 - 27
+0x80000003, 0, edx, 31:0, cpu_brandid_7 , CPU brand ID string bytes, 28 - 31
+
+# Leaf 80000004H
+# CPU brand ID string, bytes 32 - 47
+
+0x80000004, 0, eax, 31:0, cpu_brandid_8 , CPU brand ID string, bytes 32 - 35
+0x80000004, 0, ebx, 31:0, cpu_brandid_9 , CPU brand ID string, bytes 36 - 39
+0x80000004, 0, ecx, 31:0, cpu_brandid_10 , CPU brand ID string, bytes 40 - 43
+0x80000004, 0, edx, 31:0, cpu_brandid_11 , CPU brand ID string, bytes 44 - 47
# Leaf 80000005H
-# Reserved
+# AMD L1 cache and L1 TLB enumeration
+
+0x80000005, 0, eax, 7:0, l1_itlb_2m_4m_nentries , L1 ITLB #entires, 2M and 4M pages
+0x80000005, 0, eax, 15:8, l1_itlb_2m_4m_assoc , L1 ITLB associativity, 2M and 4M pages
+0x80000005, 0, eax, 23:16, l1_dtlb_2m_4m_nentries , L1 DTLB #entires, 2M and 4M pages
+0x80000005, 0, eax, 31:24, l1_dtlb_2m_4m_assoc , L1 DTLB associativity, 2M and 4M pages
+0x80000005, 0, ebx, 7:0, l1_itlb_4k_nentries , L1 ITLB #entries, 4K pages
+0x80000005, 0, ebx, 15:8, l1_itlb_4k_assoc , L1 ITLB associativity, 4K pages
+0x80000005, 0, ebx, 23:16, l1_dtlb_4k_nentries , L1 DTLB #entries, 4K pages
+0x80000005, 0, ebx, 31:24, l1_dtlb_4k_assoc , L1 DTLB associativity, 4K pages
+0x80000005, 0, ecx, 7:0, l1_dcache_line_size , L1 dcache line size, in bytes
+0x80000005, 0, ecx, 15:8, l1_dcache_nlines , L1 dcache lines per tag
+0x80000005, 0, ecx, 23:16, l1_dcache_assoc , L1 dcache associativity
+0x80000005, 0, ecx, 31:24, l1_dcache_size_kb , L1 dcache size, in KB
+0x80000005, 0, edx, 7:0, l1_icache_line_size , L1 icache line size, in bytes
+0x80000005, 0, edx, 15:8, l1_icache_nlines , L1 icache lines per tag
+0x80000005, 0, edx, 23:16, l1_icache_assoc , L1 icache associativity
+0x80000005, 0, edx, 31:24, l1_icache_size_kb , L1 icache size, in KB
# Leaf 80000006H
-# Extended L2 Cache Features
-
-0x80000006, 0, ECX, 7:0, clsize, Cache Line size in bytes
-0x80000006, 0, ECX, 15:12, l2c_assoc, L2 Associativity
-0x80000006, 0, ECX, 31:16, csize, Cache size in 1K units
-
+# (Mostly AMD) L2 TLB, L2 cache, and L3 cache enumeration
+
+0x80000006, 0, eax, 11:0, l2_itlb_2m_4m_nentries , L2 iTLB #entries, 2M and 4M pages
+0x80000006, 0, eax, 15:12, l2_itlb_2m_4m_assoc , L2 iTLB associativity, 2M and 4M pages
+0x80000006, 0, eax, 27:16, l2_dtlb_2m_4m_nentries , L2 dTLB #entries, 2M and 4M pages
+0x80000006, 0, eax, 31:28, l2_dtlb_2m_4m_assoc , L2 dTLB associativity, 2M and 4M pages
+0x80000006, 0, ebx, 11:0, l2_itlb_4k_nentries , L2 iTLB #entries, 4K pages
+0x80000006, 0, ebx, 15:12, l2_itlb_4k_assoc , L2 iTLB associativity, 4K pages
+0x80000006, 0, ebx, 27:16, l2_dtlb_4k_nentries , L2 dTLB #entries, 4K pages
+0x80000006, 0, ebx, 31:28, l2_dtlb_4k_assoc , L2 dTLB associativity, 4K pages
+0x80000006, 0, ecx, 7:0, l2_line_size , L2 cache line size, in bytes
+0x80000006, 0, ecx, 11:8, l2_nlines , L2 cache number of lines per tag
+0x80000006, 0, ecx, 15:12, l2_assoc , L2 cache associativity
+0x80000006, 0, ecx, 31:16, l2_size_kb , L2 cache size, in KB
+0x80000006, 0, edx, 7:0, l3_line_size , L3 cache line size, in bytes
+0x80000006, 0, edx, 11:8, l3_nlines , L3 cache number of lines per tag
+0x80000006, 0, edx, 15:12, l3_assoc , L3 cache associativity
+0x80000006, 0, edx, 31:18, l3_size_range , L3 cache size range
# Leaf 80000007H
-
-0x80000007, 0, EDX, 8, nonstop_tsc, Invariant TSC available
-
+# CPU power management (mostly AMD) and AMD RAS enumeration
+
+0x80000007, 0, ebx, 0, overflow_recov , MCA overflow conditions not fatal
+0x80000007, 0, ebx, 1, succor , Software containment of UnCORRectable errors
+0x80000007, 0, ebx, 2, hw_assert , Hardware assert MSRs
+0x80000007, 0, ebx, 3, smca , Scalable MCA (MCAX MSRs)
+0x80000007, 0, ecx, 31:0, cpu_pwr_sample_ratio , CPU power sample time ratio
+0x80000007, 0, edx, 0, digital_temp , Digital temprature sensor
+0x80000007, 0, edx, 1, powernow_freq_id , PowerNOW! frequency scaling
+0x80000007, 0, edx, 2, powernow_volt_id , PowerNOW! voltage scaling
+0x80000007, 0, edx, 3, thermal_trip , THERMTRIP (Thermal Trip)
+0x80000007, 0, edx, 4, hw_thermal_control , Hardware thermal control
+0x80000007, 0, edx, 5, sw_thermal_control , Software thermal control
+0x80000007, 0, edx, 6, 100mhz_steps , 100 MHz multiplier control
+0x80000007, 0, edx, 7, hw_pstate , Hardware P-state control
+0x80000007, 0, edx, 8, constant_tsc , TSC ticks at constant rate across all P and C states
+0x80000007, 0, edx, 9, cpb , Core performance boost
+0x80000007, 0, edx, 10, eff_freq_ro , Read-only effective frequency interface
+0x80000007, 0, edx, 11, proc_feedback , Processor feedback interface (deprecated)
+0x80000007, 0, edx, 12, acc_power , Processor power reporting interface
+0x80000007, 0, edx, 13, connected_standby , CPU Connected Standby support
+0x80000007, 0, edx, 14, rapl , Runtime Average Power Limit interface
# Leaf 80000008H
-
-0x80000008, 0, EAX, 7:0, phy_adr_bits, Physical Address Bits
-0x80000008, 0, EAX, 15:8, lnr_adr_bits, Linear Address Bits
-0x80000007, 0, EBX, 9, wbnoinvd, WBNOINVD
-
-# 0x8000001E
-# EAX: Extended APIC ID
-0x8000001E, 0, EAX, 31:0, extended_apic_id, Extended APIC ID
-# EBX: Core Identifiers
-0x8000001E, 0, EBX, 7:0, core_id, Identifies the logical core ID
-0x8000001E, 0, EBX, 15:8, threads_per_core, The number of threads per core is threads_per_core + 1
-# ECX: Node Identifiers
-0x8000001E, 0, ECX, 7:0, node_id, Node ID
-0x8000001E, 0, ECX, 10:8, nodes_per_processor, Nodes per processor { 0: 1 node, else reserved }
-
-# 8000001F: AMD Secure Encryption
-0x8000001F, 0, EAX, 0, sme, Secure Memory Encryption
-0x8000001F, 0, EAX, 1, sev, Secure Encrypted Virtualization
-0x8000001F, 0, EAX, 2, vmpgflush, VM Page Flush MSR
-0x8000001F, 0, EAX, 3, seves, SEV Encrypted State
-0x8000001F, 0, EBX, 5:0, c-bit, Page table bit number used to enable memory encryption
-0x8000001F, 0, EBX, 11:6, mem_encrypt_physaddr_width, Reduction of physical address space in bits with SME enabled
-0x8000001F, 0, ECX, 31:0, num_encrypted_guests, Maximum ASID value that may be used for an SEV-enabled guest
-0x8000001F, 0, EDX, 31:0, minimum_sev_asid, Minimum ASID value that must be used for an SEV-enabled, SEV-ES-disabled guest
+# CPU capacity parameters and extended feature flags (mostly AMD)
+
+0x80000008, 0, eax, 7:0, phys_addr_bits , Max physical address bits
+0x80000008, 0, eax, 15:8, virt_addr_bits , Max virtual address bits
+0x80000008, 0, eax, 23:16, guest_phys_addr_bits , Max nested-paging guest physical address bits
+0x80000008, 0, ebx, 0, clzero , CLZERO supported
+0x80000008, 0, ebx, 1, irperf , Instruction retired counter MSR
+0x80000008, 0, ebx, 2, xsaveerptr , XSAVE/XRSTOR always saves/restores FPU error pointers
+0x80000008, 0, ebx, 3, invlpgb , INVLPGB broadcasts a TLB invalidate to all threads
+0x80000008, 0, ebx, 4, rdpru , RDPRU (Read Processor Register at User level) supported
+0x80000008, 0, ebx, 6, mba , Memory Bandwidth Allocation (AMD bit)
+0x80000008, 0, ebx, 8, mcommit , MCOMMIT (Memory commit) supported
+0x80000008, 0, ebx, 9, wbnoinvd , WBNOINVD supported
+0x80000008, 0, ebx, 12, amd_ibpb , Indirect Branch Prediction Barrier
+0x80000008, 0, ebx, 13, wbinvd_int , Interruptible WBINVD/WBNOINVD
+0x80000008, 0, ebx, 14, amd_ibrs , Indirect Branch Restricted Speculation
+0x80000008, 0, ebx, 15, amd_stibp , Single Thread Indirect Branch Prediction mode
+0x80000008, 0, ebx, 16, ibrs_always_on , IBRS always-on preferred
+0x80000008, 0, ebx, 17, amd_stibp_always_on , STIBP always-on preferred
+0x80000008, 0, ebx, 18, ibrs_fast , IBRS is preferred over software solution
+0x80000008, 0, ebx, 19, ibrs_same_mode , IBRS provides same mode protection
+0x80000008, 0, ebx, 20, no_efer_lmsle , EFER[LMSLE] bit (Long-Mode Segment Limit Enable) unsupported
+0x80000008, 0, ebx, 21, tlb_flush_nested , INVLPGB RAX[5] bit can be set (nested translations)
+0x80000008, 0, ebx, 23, amd_ppin , Protected Processor Inventory Number
+0x80000008, 0, ebx, 24, amd_ssbd , Speculative Store Bypass Disable
+0x80000008, 0, ebx, 25, virt_ssbd , virtualized SSBD (Speculative Store Bypass Disable)
+0x80000008, 0, ebx, 26, amd_ssb_no , SSBD not needed (fixed in HW)
+0x80000008, 0, ebx, 27, cppc , Collaborative Processor Performance Control
+0x80000008, 0, ebx, 28, amd_psfd , Predictive Store Forward Disable
+0x80000008, 0, ebx, 29, btc_no , CPU not affected by Branch Type Confusion
+0x80000008, 0, ebx, 30, ibpb_ret , IBPB clears RSB/RAS too
+0x80000008, 0, ebx, 31, brs , Branch Sampling supported
+0x80000008, 0, ecx, 7:0, cpu_nthreads , Number of physical threads - 1
+0x80000008, 0, ecx, 15:12, apicid_coreid_len , Number of thread core ID bits (shift) in APIC ID
+0x80000008, 0, ecx, 17:16, perf_tsc_len , Performance time-stamp counter size
+0x80000008, 0, edx, 15:0, invlpgb_max_pages , INVLPGB maximum page count
+0x80000008, 0, edx, 31:16, rdpru_max_reg_id , RDPRU max register ID (ECX input)
+
+# Leaf 8000000AH
+# AMD SVM (Secure Virtual Machine) enumeration
+
+0x8000000a, 0, eax, 7:0, svm_version , SVM revision number
+0x8000000a, 0, ebx, 31:0, svm_nasid , Number of address space identifiers (ASID)
+0x8000000a, 0, edx, 0, npt , Nested paging
+0x8000000a, 0, edx, 1, lbrv , LBR virtualization
+0x8000000a, 0, edx, 2, svm_lock , SVM lock
+0x8000000a, 0, edx, 3, nrip_save , NRIP save support on #VMEXIT
+0x8000000a, 0, edx, 4, tsc_scale , MSR based TSC rate control
+0x8000000a, 0, edx, 5, vmcb_clean , VMCB clean bits support
+0x8000000a, 0, edx, 6, flushbyasid , Flush by ASID + Extended VMCB TLB_Control
+0x8000000a, 0, edx, 7, decodeassists , Decode Assists support
+0x8000000a, 0, edx, 10, pausefilter , Pause intercept filter
+0x8000000a, 0, edx, 12, pfthreshold , Pause filter threshold
+0x8000000a, 0, edx, 13, avic , Advanced virtual interrupt controller
+0x8000000a, 0, edx, 15, v_vmsave_vmload , Virtual VMSAVE/VMLOAD (nested virt)
+0x8000000a, 0, edx, 16, vgif , Virtualize the Global Interrupt Flag
+0x8000000a, 0, edx, 17, gmet , Guest mode execution trap
+0x8000000a, 0, edx, 18, x2avic , Virtual x2APIC
+0x8000000a, 0, edx, 19, sss_check , Supervisor Shadow Stack restrictions
+0x8000000a, 0, edx, 20, v_spec_ctrl , Virtual SPEC_CTRL
+0x8000000a, 0, edx, 21, ro_gpt , Read-Only guest page table support
+0x8000000a, 0, edx, 23, h_mce_override , Host MCE override
+0x8000000a, 0, edx, 24, tlbsync_int , TLBSYNC intercept + INVLPGB/TLBSYNC in VMCB
+0x8000000a, 0, edx, 25, vnmi , NMI virtualization
+0x8000000a, 0, edx, 26, ibs_virt , IBS Virtualization
+0x8000000a, 0, edx, 27, ext_lvt_off_chg , Extended LVT offset fault change
+0x8000000a, 0, edx, 28, svme_addr_chk , Guest SVME addr check
+
+# Leaf 80000019H
+# AMD TLB 1G-pages enumeration
+
+0x80000019, 0, eax, 11:0, l1_itlb_1g_nentries , L1 iTLB #entries, 1G pages
+0x80000019, 0, eax, 15:12, l1_itlb_1g_assoc , L1 iTLB associativity, 1G pages
+0x80000019, 0, eax, 27:16, l1_dtlb_1g_nentries , L1 dTLB #entries, 1G pages
+0x80000019, 0, eax, 31:28, l1_dtlb_1g_assoc , L1 dTLB associativity, 1G pages
+0x80000019, 0, ebx, 11:0, l2_itlb_1g_nentries , L2 iTLB #entries, 1G pages
+0x80000019, 0, ebx, 15:12, l2_itlb_1g_assoc , L2 iTLB associativity, 1G pages
+0x80000019, 0, ebx, 27:16, l2_dtlb_1g_nentries , L2 dTLB #entries, 1G pages
+0x80000019, 0, ebx, 31:28, l2_dtlb_1g_assoc , L2 dTLB associativity, 1G pages
+
+# Leaf 8000001AH
+# AMD instruction optimizations enumeration
+
+0x8000001a, 0, eax, 0, fp_128 , Internal FP/SIMD exec data path is 128-bits wide
+0x8000001a, 0, eax, 1, movu_preferred , SSE: MOVU* better than MOVL*/MOVH*
+0x8000001a, 0, eax, 2, fp_256 , internal FP/SSE exec data path is 256-bits wide
+
+# Leaf 8000001BH
+# AMD IBS (Instruction-Based Sampling) enumeration
+
+0x8000001b, 0, eax, 0, ibs_flags_valid , IBS feature flags valid
+0x8000001b, 0, eax, 1, ibs_fetch_sampling , IBS fetch sampling supported
+0x8000001b, 0, eax, 2, ibs_op_sampling , IBS execution sampling supported
+0x8000001b, 0, eax, 3, ibs_rdwr_op_counter , IBS read/write of op counter supported
+0x8000001b, 0, eax, 4, ibs_op_count , IBS OP counting mode supported
+0x8000001b, 0, eax, 5, ibs_branch_target , IBS branch target address reporting supported
+0x8000001b, 0, eax, 6, ibs_op_counters_ext , IBS IbsOpCurCnt/IbsOpMaxCnt extend by 7 bits
+0x8000001b, 0, eax, 7, ibs_rip_invalid_chk , IBS invalid RIP indication supported
+0x8000001b, 0, eax, 8, ibs_op_branch_fuse , IBS fused branch micro-op indication supported
+0x8000001b, 0, eax, 9, ibs_fetch_ctl_ext , IBS Fetch Control Extended MSR (0xc001103c) supported
+0x8000001b, 0, eax, 10, ibs_op_data_4 , IBS op data 4 MSR supported
+0x8000001b, 0, eax, 11, ibs_l3_miss_filter , IBS L3-miss filtering supported (Zen4+)
+
+# Leaf 8000001CH
+# AMD LWP (Lightweight Profiling)
+
+0x8000001c, 0, eax, 0, os_lwp_avail , LWP is available to application programs (supported by OS)
+0x8000001c, 0, eax, 1, os_lpwval , LWPVAL instruction (EventId=1) is supported by OS
+0x8000001c, 0, eax, 2, os_lwp_ire , Instructions Retired Event (EventId=2) is supported by OS
+0x8000001c, 0, eax, 3, os_lwp_bre , Branch Retired Event (EventId=3) is supported by OS
+0x8000001c, 0, eax, 4, os_lwp_dme , DCache Miss Event (EventId=4) is supported by OS
+0x8000001c, 0, eax, 5, os_lwp_cnh , CPU Clocks Not Halted event (EventId=5) is supported by OS
+0x8000001c, 0, eax, 6, os_lwp_rnh , CPU Reference clocks Not Halted event (EventId=6) is supported by OS
+0x8000001c, 0, eax, 29, os_lwp_cont , LWP sampling in continuous mode is supported by OS
+0x8000001c, 0, eax, 30, os_lwp_ptsc , Performance Time Stamp Counter in event records is supported by OS
+0x8000001c, 0, eax, 31, os_lwp_int , Interrupt on threshold overflow is supported by OS
+0x8000001c, 0, ebx, 7:0, lwp_lwpcb_sz , LWP Control Block size, in quadwords
+0x8000001c, 0, ebx, 15:8, lwp_event_sz , LWP event record size, in bytes
+0x8000001c, 0, ebx, 23:16, lwp_max_events , LWP max supported EventId value (EventID 255 not included)
+0x8000001c, 0, ebx, 31:24, lwp_event_offset , LWP events area offset in the LWP Control Block
+0x8000001c, 0, ecx, 4:0, lwp_latency_max , Num of bits in cache latency counters (10 to 31)
+0x8000001c, 0, ecx, 5, lwp_data_adddr , Cache miss events report the data address of the reference
+0x8000001c, 0, ecx, 8:6, lwp_latency_rnd , Amount by which cache latency is rounded
+0x8000001c, 0, ecx, 15:9, lwp_version , LWP implementation version
+0x8000001c, 0, ecx, 23:16, lwp_buf_min_sz , LWP event ring buffer min size, in units of 32 event records
+0x8000001c, 0, ecx, 28, lwp_branch_predict , Branches Retired events can be filtered
+0x8000001c, 0, ecx, 29, lwp_ip_filtering , IP filtering (IPI, IPF, BaseIP, and LimitIP @ LWPCP) supported
+0x8000001c, 0, ecx, 30, lwp_cache_levels , Cache-related events can be filtered by cache level
+0x8000001c, 0, ecx, 31, lwp_cache_latency , Cache-related events can be filtered by latency
+0x8000001c, 0, edx, 0, hw_lwp_avail , LWP is available in Hardware
+0x8000001c, 0, edx, 1, hw_lpwval , LWPVAL instruction (EventId=1) is available in HW
+0x8000001c, 0, edx, 2, hw_lwp_ire , Instructions Retired Event (EventId=2) is available in HW
+0x8000001c, 0, edx, 3, hw_lwp_bre , Branch Retired Event (EventId=3) is available in HW
+0x8000001c, 0, edx, 4, hw_lwp_dme , DCache Miss Event (EventId=4) is available in HW
+0x8000001c, 0, edx, 5, hw_lwp_cnh , CPU Clocks Not Halted event (EventId=5) is available in HW
+0x8000001c, 0, edx, 6, hw_lwp_rnh , CPU Reference clocks Not Halted event (EventId=6) is available in HW
+0x8000001c, 0, edx, 29, hw_lwp_cont , LWP sampling in continuous mode is available in HW
+0x8000001c, 0, edx, 30, hw_lwp_ptsc , Performance Time Stamp Counter in event records is available in HW
+0x8000001c, 0, edx, 31, hw_lwp_int , Interrupt on threshold overflow is available in HW
+
+# Leaf 8000001DH
+# AMD deterministic cache parameters
+
+0x8000001d, 31:0, eax, 4:0, cache_type , Cache type field
+0x8000001d, 31:0, eax, 7:5, cache_level , Cache level (1-based)
+0x8000001d, 31:0, eax, 8, cache_self_init , Self-initializing cache level
+0x8000001d, 31:0, eax, 9, fully_associative , Fully-associative cache
+0x8000001d, 31:0, eax, 25:14, num_threads_sharing , Number of logical CPUs sharing cache
+0x8000001d, 31:0, ebx, 11:0, cache_linesize , System coherency line size (0-based)
+0x8000001d, 31:0, ebx, 21:12, cache_npartitions , Physical line partitions (0-based)
+0x8000001d, 31:0, ebx, 31:22, cache_nways , Ways of associativity (0-based)
+0x8000001d, 31:0, ecx, 30:0, cache_nsets , Cache number of sets (0-based)
+0x8000001d, 31:0, edx, 0, wbinvd_rll_no_guarantee, WBINVD/INVD not guaranteed for Remote Lower-Level caches
+0x8000001d, 31:0, edx, 1, ll_inclusive , Cache is inclusive of Lower-Level caches
+
+# Leaf 8000001EH
+# AMD CPU topology enumeration
+
+0x8000001e, 0, eax, 31:0, ext_apic_id , Extended APIC ID
+0x8000001e, 0, ebx, 7:0, core_id , Unique per-socket logical core unit ID
+0x8000001e, 0, ebx, 15:8, core_nthreas , #Threads per core (zero-based)
+0x8000001e, 0, ecx, 7:0, node_id , Node (die) ID of invoking logical CPU
+0x8000001e, 0, ecx, 10:8, nnodes_per_socket , #nodes in invoking logical CPU's package/socket
+
+# Leaf 8000001FH
+# AMD encrypted memory capabilities enumeration (SME/SEV)
+
+0x8000001f, 0, eax, 0, sme , Secure Memory Encryption supported
+0x8000001f, 0, eax, 1, sev , Secure Encrypted Virtualization supported
+0x8000001f, 0, eax, 2, vm_page_flush , VM Page Flush MSR (0xc001011e) available
+0x8000001f, 0, eax, 3, sev_es , SEV Encrypted State supported
+0x8000001f, 0, eax, 4, sev_nested_paging , SEV secure nested paging supported
+0x8000001f, 0, eax, 5, vm_permission_levels , VMPL supported
+0x8000001f, 0, eax, 6, rpmquery , RPMQUERY instruction supported
+0x8000001f, 0, eax, 7, vmpl_sss , VMPL supervisor shadwo stack supported
+0x8000001f, 0, eax, 8, secure_tsc , Secure TSC supported
+0x8000001f, 0, eax, 9, v_tsc_aux , Hardware virtualizes TSC_AUX
+0x8000001f, 0, eax, 10, sme_coherent , HW enforces cache coherency across encryption domains
+0x8000001f, 0, eax, 11, req_64bit_hypervisor , SEV guest mandates 64-bit hypervisor
+0x8000001f, 0, eax, 12, restricted_injection , Restricted Injection supported
+0x8000001f, 0, eax, 13, alternate_injection , Alternate Injection supported
+0x8000001f, 0, eax, 14, debug_swap , SEV-ES: full debug state swap is supported
+0x8000001f, 0, eax, 15, disallow_host_ibs , SEV-ES: Disallowing IBS use by the host is supported
+0x8000001f, 0, eax, 16, virt_transparent_enc , Virtual Transparent Encryption
+0x8000001f, 0, eax, 17, vmgexit_paremeter , VmgexitParameter is supported in SEV_FEATURES
+0x8000001f, 0, eax, 18, virt_tom_msr , Virtual TOM MSR is supported
+0x8000001f, 0, eax, 19, virt_ibs , IBS state virtualization is supported for SEV-ES guests
+0x8000001f, 0, eax, 24, vmsa_reg_protection , VMSA register protection is supported
+0x8000001f, 0, eax, 25, smt_protection , SMT protection is supported
+0x8000001f, 0, eax, 28, svsm_page_msr , SVSM communication page MSR (0xc001f000h) is supported
+0x8000001f, 0, eax, 29, nested_virt_snp_msr , VIRT_RMPUPDATE/VIRT_PSMASH MSRs are supported
+0x8000001f, 0, ebx, 5:0, pte_cbit_pos , PTE bit number used to enable memory encryption
+0x8000001f, 0, ebx, 11:6, phys_addr_reduction_nbits, Reduction of phys address space when encryption is enabled, in bits
+0x8000001f, 0, ebx, 15:12, vmpl_count , Number of VM permission levels (VMPL) supported
+0x8000001f, 0, ecx, 31:0, enc_guests_max , Max supported number of simultaneous encrypted guests
+0x8000001f, 0, edx, 31:0, min_sev_asid_no_sev_es , Mininum ASID for SEV-enabled SEV-ES-disabled guest
+
+# Leaf 80000020H
+# AMD Platform QoS extended feature IDs
+
+0x80000020, 0, ebx, 1, mba , Memory Bandwidth Allocation support
+0x80000020, 0, ebx, 2, smba , Slow Memory Bandwidth Allocation support
+0x80000020, 0, ebx, 3, bmec , Bandwidth Monitoring Event Configuration support
+0x80000020, 0, ebx, 4, l3rr , L3 Range Reservation support
+0x80000020, 1, eax, 31:0, mba_limit_len , MBA enforcement limit size
+0x80000020, 1, edx, 31:0, mba_cos_max , MBA max Class of Service number (zero-based)
+0x80000020, 2, eax, 31:0, smba_limit_len , SMBA enforcement limit size
+0x80000020, 2, edx, 31:0, smba_cos_max , SMBA max Class of Service number (zero-based)
+0x80000020, 3, ebx, 7:0, bmec_num_events , BMEC number of bandwidth events available
+0x80000020, 3, ecx, 0, bmec_local_reads , Local NUMA reads can be tracked
+0x80000020, 3, ecx, 1, bmec_remote_reads , Remote NUMA reads can be tracked
+0x80000020, 3, ecx, 2, bmec_local_nontemp_wr , Local NUMA non-temporal writes can be tracked
+0x80000020, 3, ecx, 3, bmec_remote_nontemp_wr , Remote NUMA non-temporal writes can be tracked
+0x80000020, 3, ecx, 4, bmec_local_slow_mem_rd , Local NUMA slow-memory reads can be tracked
+0x80000020, 3, ecx, 5, bmec_remote_slow_mem_rd, Remote NUMA slow-memory reads can be tracked
+0x80000020, 3, ecx, 6, bmec_all_dirty_victims , Dirty QoS victims to all types of memory can be tracked
+
+# Leaf 80000021H
+# AMD extended features enumeration 2
+
+0x80000021, 0, eax, 0, no_nested_data_bp , No nested data breakpoints
+0x80000021, 0, eax, 1, fsgs_non_serializing , WRMSR to {FS,GS,KERNEL_GS}_BASE is non-serializing
+0x80000021, 0, eax, 2, lfence_rdtsc , LFENCE always serializing / synchronizes RDTSC
+0x80000021, 0, eax, 3, smm_page_cfg_lock , SMM paging configuration lock is supported
+0x80000021, 0, eax, 6, null_sel_clr_base , Null selector clears base
+0x80000021, 0, eax, 7, upper_addr_ignore , EFER MSR Upper Address Ignore Enable bit supported
+0x80000021, 0, eax, 8, autoibrs , EFER MSR Automatic IBRS enable bit supported
+0x80000021, 0, eax, 9, no_smm_ctl_msr , SMM_CTL MSR (0xc0010116) is not present
+0x80000021, 0, eax, 10, fsrs_supported , Fast Short Rep Stosb (FSRS) is supported
+0x80000021, 0, eax, 11, fsrc_supported , Fast Short Repe Cmpsb (FSRC) is supported
+0x80000021, 0, eax, 13, prefetch_ctl_msr , Prefetch control MSR is supported
+0x80000021, 0, eax, 17, user_cpuid_disable , #GP when executing CPUID at CPL > 0 is supported
+0x80000021, 0, eax, 18, epsf_supported , Enhanced Predictive Store Forwarding (EPSF) is supported
+0x80000021, 0, ebx, 11:0, microcode_patch_size , Size of microcode patch, in 16-byte units
+
+# Leaf 80000022H
+# AMD Performance Monitoring v2 enumeration
+
+0x80000022, 0, eax, 0, perfmon_v2 , Performance monitoring v2 supported
+0x80000022, 0, eax, 1, lbr_v2 , Last Branch Record v2 extensions (LBR Stack)
+0x80000022, 0, eax, 2, lbr_pmc_freeze , Freezing core performance counters / LBR Stack supported
+0x80000022, 0, ebx, 3:0, n_pmc_core , Number of core perfomance counters
+0x80000022, 0, ebx, 9:4, lbr_v2_stack_size , Number of available LBR stack entries
+0x80000022, 0, ebx, 15:10, n_pmc_northbridge , Number of available northbridge (data fabric) performance counters
+0x80000022, 0, ebx, 21:16, n_pmc_umc , Number of available UMC performance counters
+0x80000022, 0, ecx, 31:0, active_umc_bitmask , Active UMCs bitmask
+
+# Leaf 80000023H
+# AMD Secure Multi-key Encryption enumeration
+
+0x80000023, 0, eax, 0, mem_hmk_mode , MEM-HMK encryption mode is supported
+0x80000023, 0, ebx, 15:0, mem_hmk_avail_keys , MEM-HMK mode: total num of available encryption keys
+
+# Leaf 80000026H
+# AMD extended topology enumeration v2
+
+0x80000026, 3:0, eax, 4:0, x2apic_id_shift , Bit width of this level (previous levels inclusive)
+0x80000026, 3:0, eax, 29, core_has_pwreff_ranking, This core has a power efficiency ranking
+0x80000026, 3:0, eax, 30, domain_has_hybrid_cores, This domain level has hybrid (E, P) cores
+0x80000026, 3:0, eax, 31, domain_core_count_asymm, The 'Core' domain has asymmetric cores count
+0x80000026, 3:0, ebx, 15:0, domain_lcpus_count , Number of logical CPUs at this domain instance
+0x80000026, 3:0, ebx, 23:16, core_pwreff_ranking , This core's static power efficiency ranking
+0x80000026, 3:0, ebx, 27:24, core_native_model_id , This core's native model ID
+0x80000026, 3:0, ebx, 31:28, core_type , This core's type
+0x80000026, 3:0, ecx, 7:0, domain_level , This domain level (subleaf ID)
+0x80000026, 3:0, ecx, 15:8, domain_type , This domain type
+0x80000026, 3:0, edx, 31:0, x2apic_id , x2APIC ID of current logical CPU
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