From: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Sent: Monday, July 31, 2023 1:49 PM
>
> On Mon, Jul 31 2023 at 16:10, Michael Kelley wrote:
> > From: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Sent: Monday, July 31, 2023 8:38 AM
> > The VM is an F72s_v2 in Azure running your patch set. The VM has
> > 72 vCPUs in two NUMA nodes across two physical Intel processors, with
> > 36 vCPUs in each NUMA node.
> >
> > The output is from /sys/kernel/debug/x86/topo/cpus, so the initial_apicid
> > is from CPUID, while the apicid is from read_apic_id() and matches the
> > MADT. As expected, the two values match for the first 36 vCPUs, but differ
> > by 28 (decimal) for the remaining 36.
> >
> > initial_apicid: 0 apicid: 0
> ...
> > initial_apicid: 23 apicid: 23
>
> > initial_apicid: 40 apicid: 24
> ...
> > initial_apicid: 63 apicid: 47
>
> Is there any indication in some other CPUID leaf which lets us deduce this
> wreckage?
You can detect being a Hyper-V guest with leaf 0x40000000. See Linux
kernel function ms_hyperv_platform(). But I'm not aware of anything
to indicate that a specific Hyper-V VM has the APIC numbering problem
vs. doesn't have the problem.
>
> I don't think the hypervisor space (0x40000xx) has anything helpful, but
> staring at the architectural ones provided by hyper-V to the guest might
> give us an hint. Can you provide a cpuid dump for the boot CPU please?
>
I'm not sure if you want the raw or decoded output. Here's both.
Michael
# taskset -c 0 cpuid -r -1
CPU:
0x00000000 0x00: eax=0x00000015 ebx=0x756e6547 ecx=0x6c65746e edx=0x49656e69
0x00000001 0x00: eax=0x000606a6 ebx=0x00400800 ecx=0xfeda3223 edx=0x1f8bfbff
0x00000002 0x00: eax=0x00feff01 ebx=0x000000f0 ecx=0x00000000 edx=0x00000000
0x00000003 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000004 0x00: eax=0x7c004121 ebx=0x02c0003f ecx=0x0000003f edx=0x00000000
0x00000004 0x01: eax=0x7c004122 ebx=0x01c0003f ecx=0x0000003f edx=0x00000000
0x00000004 0x02: eax=0x7c004143 ebx=0x04c0003f ecx=0x000003ff edx=0x00000000
0x00000004 0x03: eax=0x7c0fc163 ebx=0x02c0003f ecx=0x0000ffff edx=0x00000000
0x00000005 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000006 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000007 0x00: eax=0x00000000 ebx=0xd09f2fb9 ecx=0x00000000 edx=0x00000400
0x00000008 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000009 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000a 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000b 0x00: eax=0x00000001 ebx=0x00000002 ecx=0x00000100 edx=0x00000000
0x0000000b 0x01: eax=0x00000006 ebx=0x00000040 ecx=0x00000201 edx=0x00000000
0x0000000c 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000d 0x00: eax=0x000000e7 ebx=0x00000a80 ecx=0x00000a80 edx=0x00000000
0x0000000d 0x01: eax=0x0000000b ebx=0x00000980 ecx=0x00000000 edx=0x00000000
0x0000000d 0x02: eax=0x00000100 ebx=0x00000240 ecx=0x00000000 edx=0x00000000
0x0000000d 0x05: eax=0x00000040 ebx=0x00000440 ecx=0x00000000 edx=0x00000000
0x0000000d 0x06: eax=0x00000200 ebx=0x00000480 ecx=0x00000000 edx=0x00000000
0x0000000d 0x07: eax=0x00000400 ebx=0x00000680 ecx=0x00000000 edx=0x00000000
0x0000000e 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000f 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000010 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000011 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000012 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000013 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000014 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000015 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x40000000 0x00: eax=0x4000000a ebx=0x7263694d ecx=0x666f736f edx=0x76482074
0x40000001 0x00: eax=0x31237648 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x40000002 0x00: eax=0x00004f7c ebx=0x000a0000 ecx=0x00000001 edx=0x000005b6
0x40000003 0x00: eax=0x00002e7f ebx=0x003b8030 ecx=0x00000002 edx=0x000ed7b2
0x40000004 0x00: eax=0x00064e24 ebx=0x00000fff ecx=0x0000002e edx=0x00000000
0x40000005 0x00: eax=0x000000f0 ebx=0x00000400 ecx=0x00005d00 edx=0x00000000
0x40000006 0x00: eax=0x0000000f ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x40000007 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x40000008 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x40000009 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x4000000a 0x00: eax=0x000e0101 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x20000000 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000000 0x00: eax=0x80000008 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000001 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000121 edx=0x2c100800
0x80000002 0x00: eax=0x65746e49 ebx=0x2952286c ecx=0x6f655820 edx=0x2952286e
0x80000003 0x00: eax=0x616c5020 ebx=0x756e6974 ecx=0x3338206d edx=0x20433037
0x80000004 0x00: eax=0x20555043 ebx=0x2e322040 ecx=0x48473038 edx=0x0000007a
0x80000005 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000006 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x01006040 edx=0x00000000
0x80000007 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000008 0x00: eax=0x0000302e ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80860000 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0xc0000000 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
CPU:
vendor_id = "GenuineIntel"
version information (1/eax):
processor type = primary processor (0)
family = 0x6 (6)
model = 0xa (10)
stepping id = 0x6 (6)
extended family = 0x0 (0)
extended model = 0x6 (6)
(family synth) = 0x6 (6)
(model synth) = 0x6a (106)
(simple synth) = Intel Core (Ice Lake) [Sunny Cove] {Sunny Cove}, 10nm
miscellaneous (1/ebx):
process local APIC physical ID = 0x0 (0)
cpu count = 0x40 (64)
CLFLUSH line size = 0x8 (8)
brand index = 0x0 (0)
brand id = 0x00 (0): unknown
feature information (1/edx):
x87 FPU on chip = true
VME: virtual-8086 mode enhancement = true
DE: debugging extensions = true
PSE: page size extensions = true
TSC: time stamp counter = true
RDMSR and WRMSR support = true
PAE: physical address extensions = true
MCE: machine check exception = true
CMPXCHG8B inst. = true
APIC on chip = true
SYSENTER and SYSEXIT = true
MTRR: memory type range registers = true
PTE global bit = true
MCA: machine check architecture = true
CMOV: conditional move/compare instr = true
PAT: page attribute table = true
PSE-36: page size extension = true
PSN: processor serial number = false
CLFLUSH instruction = true
DS: debug store = false
ACPI: thermal monitor and clock ctrl = false
MMX Technology = true
FXSAVE/FXRSTOR = true
SSE extensions = true
SSE2 extensions = true
SS: self snoop = true
hyper-threading / multi-core supported = true
TM: therm. monitor = false
IA64 = false
PBE: pending break event = false
feature information (1/ecx):
PNI/SSE3: Prescott New Instructions = true
PCLMULDQ instruction = true
DTES64: 64-bit debug store = false
MONITOR/MWAIT = false
CPL-qualified debug store = false
VMX: virtual machine extensions = true
SMX: safer mode extensions = false
Enhanced Intel SpeedStep Technology = false
TM2: thermal monitor 2 = false
SSSE3 extensions = true
context ID: adaptive or shared L1 data = false
SDBG: IA32_DEBUG_INTERFACE = false
FMA instruction = true
CMPXCHG16B instruction = true
xTPR disable = false
PDCM: perfmon and debug = false
PCID: process context identifiers = true
DCA: direct cache access = false
SSE4.1 extensions = true
SSE4.2 extensions = true
x2APIC: extended xAPIC support = false
MOVBE instruction = true
POPCNT instruction = true
time stamp counter deadline = false
AES instruction = true
XSAVE/XSTOR states = true
OS-enabled XSAVE/XSTOR = true
AVX: advanced vector extensions = true
F16C half-precision convert instruction = true
RDRAND instruction = true
hypervisor guest status = true
cache and TLB information (2):
0xff: cache data is in CPUID leaf 4
0xfe: TLB data is in CPUID leaf 0x18
0xf0: 64 byte prefetching
processor serial number = 0006-06A6-0000-0000-0000-0000
deterministic cache parameters (4):
--- cache 0 ---
cache type = data cache (1)
cache level = 0x1 (1)
self-initializing cache level = true
fully associative cache = false
extra threads sharing this cache = 0x1 (1)
extra processor cores on this die = 0x1f (31)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0xc (12)
number of sets = 0x40 (64)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 64
(size synth) = 49152 (48 KB)
--- cache 1 ---
cache type = instruction cache (2)
cache level = 0x1 (1)
self-initializing cache level = true
fully associative cache = false
extra threads sharing this cache = 0x1 (1)
extra processor cores on this die = 0x1f (31)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0x8 (8)
number of sets = 0x40 (64)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 64
(size synth) = 32768 (32 KB)
--- cache 2 ---
cache type = unified cache (3)
cache level = 0x2 (2)
self-initializing cache level = true
fully associative cache = false
extra threads sharing this cache = 0x1 (1)
extra processor cores on this die = 0x1f (31)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0x14 (20)
number of sets = 0x400 (1024)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 1024
(size synth) = 1310720 (1.2 MB)
--- cache 3 ---
cache type = unified cache (3)
cache level = 0x3 (3)
self-initializing cache level = true
fully associative cache = false
extra threads sharing this cache = 0x3f (63)
extra processor cores on this die = 0x1f (31)
system coherency line size = 0x40 (64)
physical line partitions = 0x1 (1)
ways of associativity = 0xc (12)
number of sets = 0x10000 (65536)
WBINVD/INVD acts on lower caches = false
inclusive to lower caches = false
complex cache indexing = false
number of sets (s) = 65536
(size synth) = 50331648 (48 MB)
MONITOR/MWAIT (5):
smallest monitor-line size (bytes) = 0x0 (0)
largest monitor-line size (bytes) = 0x0 (0)
enum of Monitor-MWAIT exts supported = false
supports intrs as break-event for MWAIT = false
number of C0 sub C-states using MWAIT = 0x0 (0)
number of C1 sub C-states using MWAIT = 0x0 (0)
number of C2 sub C-states using MWAIT = 0x0 (0)
number of C3 sub C-states using MWAIT = 0x0 (0)
number of C4 sub C-states using MWAIT = 0x0 (0)
number of C5 sub C-states using MWAIT = 0x0 (0)
number of C6 sub C-states using MWAIT = 0x0 (0)
number of C7 sub C-states using MWAIT = 0x0 (0)
Thermal and Power Management Features (6):
digital thermometer = false
Intel Turbo Boost Technology = false
ARAT always running APIC timer = false
PLN power limit notification = false
ECMD extended clock modulation duty = false
PTM package thermal management = false
HWP base registers = false
HWP notification = false
HWP activity window = false
HWP energy performance preference = false
HWP package level request = false
HDC base registers = false
Intel Turbo Boost Max Technology 3.0 = false
HWP capabilities = false
HWP PECI override = false
flexible HWP = false
IA32_HWP_REQUEST MSR fast access mode = false
HW_FEEDBACK = false
ignoring idle logical processor HWP req = false
digital thermometer thresholds = 0x0 (0)
hardware coordination feedback = false
ACNT2 available = false
performance-energy bias capability = false
performance capability reporting = false
energy efficiency capability reporting = false
size of feedback struct (4KB pages) = 0x0 (0)
index of CPU's row in feedback struct = 0x0 (0)
extended feature flags (7):
FSGSBASE instructions = true
IA32_TSC_ADJUST MSR supported = false
SGX: Software Guard Extensions supported = false
BMI1 instructions = true
HLE hardware lock elision = true
AVX2: advanced vector extensions 2 = true
FDP_EXCPTN_ONLY = false
SMEP supervisor mode exec protection = true
BMI2 instructions = true
enhanced REP MOVSB/STOSB = true
INVPCID instruction = true
RTM: restricted transactional memory = true
RDT-CMT/PQoS cache monitoring = false
deprecated FPU CS/DS = true
MPX: intel memory protection extensions = false
RDT-CAT/PQE cache allocation = false
AVX512F: AVX-512 foundation instructions = true
AVX512DQ: double & quadword instructions = true
RDSEED instruction = true
ADX instructions = true
SMAP: supervisor mode access prevention = true
AVX512IFMA: fused multiply add = false
PCOMMIT instruction = false
CLFLUSHOPT instruction = true
CLWB instruction = false
Intel processor trace = false
AVX512PF: prefetch instructions = false
AVX512ER: exponent & reciprocal instrs = false
AVX512CD: conflict detection instrs = true
SHA instructions = false
AVX512BW: byte & word instructions = true
AVX512VL: vector length = true
PREFETCHWT1 = false
AVX512VBMI: vector byte manipulation = false
UMIP: user-mode instruction prevention = false
PKU protection keys for user-mode = false
OSPKE CR4.PKE and RDPKRU/WRPKRU = false
WAITPKG instructions = false
AVX512_VBMI2: byte VPCOMPRESS, VPEXPAND = false
CET_SS: CET shadow stack = false
GFNI: Galois Field New Instructions = false
VAES instructions = false
VPCLMULQDQ instruction = false
AVX512_VNNI: neural network instructions = false
AVX512_BITALG: bit count/shiffle = false
TME: Total Memory Encryption = false
AVX512: VPOPCNTDQ instruction = false
5-level paging = false
BNDLDX/BNDSTX MAWAU value in 64-bit mode = 0x0 (0)
RDPID: read processor D supported = false
CLDEMOTE supports cache line demote = false
MOVDIRI instruction = false
MOVDIR64B instruction = false
ENQCMD instruction = false
SGX_LC: SGX launch config supported = false
AVX512_4VNNIW: neural network instrs = false
AVX512_4FMAPS: multiply acc single prec = false
fast short REP MOV = false
AVX512_VP2INTERSECT: intersect mask regs = false
VERW md-clear microcode support = true
hybrid part = false
PCONFIG instruction = false
CET_IBT: CET indirect branch tracking = false
IBRS/IBPB: indirect branch restrictions = false
STIBP: 1 thr indirect branch predictor = false
L1D_FLUSH: IA32_FLUSH_CMD MSR = false
IA32_ARCH_CAPABILITIES MSR = false
IA32_CORE_CAPABILITIES MSR = false
SSBD: speculative store bypass disable = false
Direct Cache Access Parameters (9):
PLATFORM_DCA_CAP MSR bits = 0
Architecture Performance Monitoring Features (0xa/eax):
version ID = 0x0 (0)
number of counters per logical processor = 0x0 (0)
bit width of counter = 0x0 (0)
length of EBX bit vector = 0x0 (0)
Architecture Performance Monitoring Features (0xa/ebx):
core cycle event not available = false
instruction retired event not available = false
reference cycles event not available = false
last-level cache ref event not available = false
last-level cache miss event not avail = false
branch inst retired event not available = false
branch mispred retired event not avail = false
Architecture Performance Monitoring Features (0xa/edx):
number of fixed counters = 0x0 (0)
bit width of fixed counters = 0x0 (0)
anythread deprecation = false
x2APIC features / processor topology (0xb):
extended APIC ID = 0
--- level 0 ---
level number = 0x0 (0)
level type = thread (1)
bit width of level = 0x1 (1)
number of logical processors at level = 0x2 (2)
--- level 1 ---
level number = 0x1 (1)
level type = core (2)
bit width of level = 0x6 (6)
number of logical processors at level = 0x40 (64)
XSAVE features (0xd/0):
XCR0 lower 32 bits valid bit field mask = 0x000000e7
XCR0 upper 32 bits valid bit field mask = 0x00000000
XCR0 supported: x87 state = true
XCR0 supported: SSE state = true
XCR0 supported: AVX state = true
XCR0 supported: MPX BNDREGS = false
XCR0 supported: MPX BNDCSR = false
XCR0 supported: AVX-512 opmask = true
XCR0 supported: AVX-512 ZMM_Hi256 = true
XCR0 supported: AVX-512 Hi16_ZMM = true
IA32_XSS supported: PT state = false
XCR0 supported: PKRU state = false
XCR0 supported: CET_U state = false
XCR0 supported: CET_S state = false
IA32_XSS supported: HDC state = false
bytes required by fields in XCR0 = 0x00000a80 (2688)
bytes required by XSAVE/XRSTOR area = 0x00000a80 (2688)
XSAVE features (0xd/1):
XSAVEOPT instruction = true
XSAVEC instruction = true
XGETBV instruction = false
XSAVES/XRSTORS instructions = true
SAVE area size in bytes = 0x00000980 (2432)
IA32_XSS lower 32 bits valid bit field mask = 0x00000000
IA32_XSS upper 32 bits valid bit field mask = 0x00000000
AVX/YMM features (0xd/2):
AVX/YMM save state byte size = 0x00000100 (256)
AVX/YMM save state byte offset = 0x00000240 (576)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
AVX-512 opmask features (0xd/5):
AVX-512 opmask save state byte size = 0x00000040 (64)
AVX-512 opmask save state byte offset = 0x00000440 (1088)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
AVX-512 ZMM_Hi256 features (0xd/6):
AVX-512 ZMM_Hi256 save state byte size = 0x00000200 (512)
AVX-512 ZMM_Hi256 save state byte offset = 0x00000480 (1152)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
AVX-512 Hi16_ZMM features (0xd/7):
AVX-512 Hi16_ZMM save state byte size = 0x00000400 (1024)
AVX-512 Hi16_ZMM save state byte offset = 0x00000680 (1664)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
Quality of Service Monitoring Resource Type (0xf/0):
Maximum range of RMID = 0
supports L3 cache QoS monitoring = false
Resource Director Technology Allocation (0x10/0):
L3 cache allocation technology supported = false
L2 cache allocation technology supported = false
memory bandwidth allocation supported = false
0x00000011 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
Software Guard Extensions (SGX) capability (0x12/0):
SGX1 supported = false
SGX2 supported = false
SGX ENCLV E*VIRTCHILD, ESETCONTEXT = false
SGX ENCLS ETRACKC, ERDINFO, ELDBC, ELDUC = false
MISCSELECT.EXINFO supported: #PF & #GP = false
MISCSELECT.CPINFO supported: #CP = false
MaxEnclaveSize_Not64 (log2) = 0x0 (0)
MaxEnclaveSize_64 (log2) = 0x0 (0)
0x00000013 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
Intel Processor Trace (0x14):
IA32_RTIT_CR3_MATCH is accessible = false
configurable PSB & cycle-accurate = false
IP & TraceStop filtering; PT preserve = false
MTC timing packet; suppress COFI-based = false
PTWRITE support = false
power event trace support = false
ToPA output scheme support = false
ToPA can hold many output entries = false
single-range output scheme support = false
output to trace transport = false
IP payloads have LIP values & CS = false
Time Stamp Counter/Core Crystal Clock Information (0x15):
TSC/clock ratio = 0/0
nominal core crystal clock = 0 Hz
hypervisor_id = "Microsoft Hv"
hypervisor interface identification (0x40000001/eax):
version = "Hv#1"
hypervisor system identity (0x40000002):
build = 20348
version = 10.0
service pack = 1
service branch = 0
service number = 1462
hypervisor feature identification (0x40000003/eax):
VP run time = true
partition reference counter = true
basic synIC MSRs = true
synthetic timer MSRs = true
APIC access MSRs = true
hypercall MSRs = true
access virtual process index MSR = true
virtual system reset MSR = false
map/unmap statistics pages MSR = false
reference TSC access = true
guest idle state MSR = true
TSC/APIC frequency MSRs = true
guest debugging MSRs = false
hypervisor partition creation flags (0x40000003/ebx):
CreatePartitions = false
AccessPartitionId = false
AccessMemoryPool = false
AdjustMessageBuffers = false
PostMessages = true
SignalEvents = true
CreatePort = false
ConnectPort = false
AccessStats = false
Debugging = false
CPUManagement = false
ConfigureProfiler = false
AccessVSM = true
AccessVpRegisters = true
EnableExtendedHypercalls = true
StartVirtualProcessor = true
hypervisor power management features (0x40000003/ecx):
maximum process power state = 0x2 (2)
hypervisor feature identification (0x40000003/edx):
MWAIT available = false
guest debugging support available = true
performance monitor support available = false
CPU dynamic partitioning events avail = false
hypercall XMM input parameters available = true
virtual guest idle state available = true
hypervisor sleep state available = false
query NUMA distance available = true
determine timer frequency available = true
inject synthetic machine check available = true
guest crash MSRs available = true
debug MSRs available = false
NPIEP available = true
disable hypervisor available = false
extended gva ranges for flush virt addrs = true
hypercall XMM register return available = true
sint polling mode available = true
hypercall MSR lock available = true
use direct synthetic timers = true
hypervisor recommendations (0x40000004/eax):
use hypercalls for AS switches = false
use hypercalls for local TLB flushes = false
use hypercalls for remote TLB flushes = true
use MSRs to access EOI, ICR, TPR = false
use MSRs to initiate system RESET = false
use relaxed timing = true
use DMA remapping = false
use interrupt remapping = false
use x2APIC MSRs = false
deprecate AutoEOI = true
use SyntheticClusterIpi hypercall = true
use ExProcessorMasks = true
hypervisor is nested with Hyper-V = false
use INT for MBEC system calls = false
use enlightened VMCS interface = true
maximum number of spinlock retry attempts = 0xfff (4095)
hypervisor implementation limits (0x40000005):
maximum number of virtual processors = 0xf0 (240)
maximum number of logical processors = 0x400 (1024)
maximum number of physical interrupt vectors for remapping = 0x5d00 (23808)
hypervisor hardware features used (0x40000006/eax):
APIC overlay assist = true
MSR bitmaps = true
performance counters = true
second-level address translation = true
DMA remapping = false
interrupt remapping = false
memory patrol scrubber = false
DMA protection = false
HPET requested = false
synthetic timers are volatile = false
hypervisor root partition enlightenments (0x40000007):
StartLogicalProcessor = false
CreateRootvirtualProcessor = false
ProcessorPowerManagement = false
MwaitIdleStates = false
LogicalProcessorIdling = false
hypervisor shared virtual memory (0x40000008):
SvmSupported = false
MaxPasidSpacePasidCount = 0x0 (0)
hypervisor nested hypervisor features (0x40000009):
AccessSynicRegs = false
AccessIntrCtrlRegs = false
AccessHypercallMsrs = false
AccessVpIndex = false
AccessReenlightenmentControls = false
XmmRegistersForFastHypercallAvailable = false
FastHypercallOutputAvailable = false
SintPoillingModeAvailable = false
hypervisor nested virtualization features (0x4000000a):
enlightened VMCS version (low) = 0x1 (1)
enlightened VMCS version (high) = 0x1 (1)
direct virtual flush hypercalls support = true
HvFlushGuestPhysicalAddress* hypercalls = true
enlightened MSR bitmap support = true
extended feature flags (0x80000001/edx):
SYSCALL and SYSRET instructions = true
execution disable = true
1-GB large page support = true
RDTSCP = true
64-bit extensions technology available = true
Intel feature flags (0x80000001/ecx):
LAHF/SAHF supported in 64-bit mode = true
LZCNT advanced bit manipulation = true
3DNow! PREFETCH/PREFETCHW instructions = true
brand = "Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz"
L1 TLB/cache information: 2M/4M pages & L1 TLB (0x80000005/eax):
instruction # entries = 0x0 (0)
instruction associativity = 0x0 (0)
data # entries = 0x0 (0)
data associativity = 0x0 (0)
L1 TLB/cache information: 4K pages & L1 TLB (0x80000005/ebx):
instruction # entries = 0x0 (0)
instruction associativity = 0x0 (0)
data # entries = 0x0 (0)
data associativity = 0x0 (0)
L1 data cache information (0x80000005/ecx):
line size (bytes) = 0x0 (0)
lines per tag = 0x0 (0)
associativity = 0x0 (0)
size (KB) = 0x0 (0)
L1 instruction cache information (0x80000005/edx):
line size (bytes) = 0x0 (0)
lines per tag = 0x0 (0)
associativity = 0x0 (0)
size (KB) = 0x0 (0)
L2 TLB/cache information: 2M/4M pages & L2 TLB (0x80000006/eax):
instruction # entries = 0x0 (0)
instruction associativity = L2 off (0)
data # entries = 0x0 (0)
data associativity = L2 off (0)
L2 TLB/cache information: 4K pages & L2 TLB (0x80000006/ebx):
instruction # entries = 0x0 (0)
instruction associativity = L2 off (0)
data # entries = 0x0 (0)
data associativity = L2 off (0)
L2 unified cache information (0x80000006/ecx):
line size (bytes) = 0x40 (64)
lines per tag = 0x0 (0)
associativity = 8-way (6)
size (KB) = 0x100 (256)
L3 cache information (0x80000006/edx):
line size (bytes) = 0x0 (0)
lines per tag = 0x0 (0)
associativity = L2 off (0)
size (in 512KB units) = 0x0 (0)
RAS Capability (0x80000007/ebx):
MCA overflow recovery support = false
SUCCOR support = false
HWA: hardware assert support = false
scalable MCA support = false
Advanced Power Management Features (0x80000007/ecx):
CmpUnitPwrSampleTimeRatio = 0x0 (0)
Advanced Power Management Features (0x80000007/edx):
TS: temperature sensing diode = false
FID: frequency ID control = false
VID: voltage ID control = false
TTP: thermal trip = false
TM: thermal monitor = false
STC: software thermal control = false
100 MHz multiplier control = false
hardware P-State control = false
TscInvariant = false
CPB: core performance boost = false
read-only effective frequency interface = false
processor feedback interface = false
APM power reporting = false
connected standby = false
RAPL: running average power limit = false
Physical Address and Linear Address Size (0x80000008/eax):
maximum physical address bits = 0x2e (46)
maximum linear (virtual) address bits = 0x30 (48)
maximum guest physical address bits = 0x0 (0)
Extended Feature Extensions ID (0x80000008/ebx):
CLZERO instruction = false
instructions retired count support = false
always save/restore error pointers = false
RDPRU instruction = false
memory bandwidth enforcement = false
WBNOINVD instruction = false
IBPB: indirect branch prediction barrier = false
IBRS: indirect branch restr speculation = false
STIBP: 1 thr indirect branch predictor = false
STIBP always on preferred mode = false
ppin processor id number supported = false
SSBD: speculative store bypass disable = false
virtualized SSBD = false
SSBD fixed in hardware = false
Size Identifiers (0x80000008/ecx):
number of CPU cores = 0x1 (1)
ApicIdCoreIdSize = 0x0 (0)
performance time-stamp counter size = 0x0 (0)
Feature Extended Size (0x80000008/edx):
RDPRU instruction max input support = 0x0 (0)
(multi-processing synth) = multi-core (c=32), hyper-threaded (t=2)
(multi-processing method) = Intel leaf 0xb
(APIC widths synth): CORE_width=6 SMT_width=1
(APIC synth): PKG_ID=0 CORE_ID=0 SMT_ID=0
(uarch synth) = Intel Sunny Cove {Sunny Cove}, 10nm
(synth) = Intel Core (Ice Lake) [Sunny Cove] {Sunny Cove}, 10nm
