Re: [patch 00/37] cpu/hotplug, x86: Reworked parallel CPU bringup

Paul Menzel
2023-04-18T20:10:33Z

[-- Attachment #1: Type: text/plain, Size: 1924 bytes --]

Dear Thomas,

Am 18.04.23 um 10:40 schrieb Thomas Gleixner:
> On Tue, Apr 18 2023 at 08:58, Thomas Gleixner wrote:
>> On Mon, Apr 17 2023 at 19:40, Paul Menzel wrote:
>>> Am 17.04.23 um 16:48 schrieb Thomas Gleixner:
>>>
>>>> On Mon, Apr 17 2023 at 13:19, Paul Menzel wrote:
>>>>> Am 15.04.23 um 01:44 schrieb Thomas Gleixner:
>>>>> [ 0.258193] smpboot: CPU0: AMD A6-6400K APU with Radeon(tm) HD Graphics (family: 0x15, model: 0x13, stepping: 0x1)
>>>>> […]
>>>>> [ 0.259329] smp: Bringing up secondary CPUs ...
>>>>> [ 0.259527] x86: Booting SMP configuration:
>>>>> [ 0.259528] .... node #0, CPUs: #1
>>>>> [ 0.261007] After schedule_preempt_disabled
>>>>> [ 10.260990] CPU1 failed to report alive state
>>>>
>>>> Weird. CPU1 fails to come up and report that it has reached the
>>>> synchronization point.
>>>>
>>>> Does it work when you add cpuhp.parallel=off on the kernel command line?
>>>
>>> Yes, the ten seconds delay is gone with `cpuhp.parallel=off`.
>>>
>>> There was a patch set in the past, that worked on that device. I think
>>> up to v4 it did *not* work at all and hung [1]. I need some days to
>>> collect the results again.
>>
>> Can you please apply the patch below on top of the pile remove the
>> command line option again?
>
> Bah. That patch does not make any sense at all. Not enough coffee.
>
> Can you please provide the output of cpuid?

Of course. Here the top, and the whole output is attached.

```
CPU 0:
vendor_id = "AuthenticAMD"
version information (1/eax):
processor type = primary processor (0)
family = 0xf (15)
model = 0x3 (3)
stepping id = 0x1 (1)
extended family = 0x6 (6)
extended model = 0x1 (1)
(family synth) = 0x15 (21)
(model synth) = 0x13 (19)
(simple synth) = AMD (unknown type) (Richland RL-A1)
[Piledriver], 32nm
[…]
```

Kind regards,

Paul

[-- Attachment #2: cpuid.txt --]
[-- Type: text/plain, Size: 65008 bytes --]

CPU 0:
vendor_id = "AuthenticAMD"
version information (1/eax):
processor type = primary processor (0)
family = 0xf (15)
model = 0x3 (3)
stepping id = 0x1 (1)
extended family = 0x6 (6)
extended model = 0x1 (1)
(family synth) = 0x15 (21)
(model synth) = 0x13 (19)
(simple synth) = AMD (unknown type) (Richland RL-A1) [Piledriver], 32nm
miscellaneous (1/ebx):
process local APIC physical ID = 0x0 (0)
maximum IDs for CPUs in pkg = 0x2 (2)
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 = false
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 = true
CPL-qualified debug store = false
VMX: virtual machine extensions = false
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 = false
DCA: direct cache access = false
SSE4.1 extensions = true
SSE4.2 extensions = true
x2APIC: extended xAPIC support = false
MOVBE instruction = false
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 = false
hypervisor guest status = false
cache and TLB information (2):
processor serial number = 0061-0F31-0000-0000-0000-0000
deterministic cache parameters (4):
--- cache 0 ---
cache type = no more caches (0)
MONITOR/MWAIT (5):
smallest monitor-line size (bytes) = 0x40 (64)
largest monitor-line size (bytes) = 0x40 (64)
enum of Monitor-MWAIT exts supported = true
supports intrs as break-event for MWAIT = true
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 MSRs supported = false
ignoring idle logical processor HWP req = false
Thread Director = false
IA32_HW_FEEDBACK_THREAD_CONFIG bit 25 = false
digital thermometer thresholds = 0x0 (0)
hardware coordination feedback = true
ACNT2 available = false
performance-energy bias capability = false
number of enh hardware feedback classes = 0x0 (0)
performance capability reporting = false
energy efficiency capability reporting = false
size of feedback struct (4KB pages) = 0x1 (1)
index of CPU's row in feedback struct = 0x0 (0)
extended feature flags (7):
FSGSBASE instructions = false
IA32_TSC_ADJUST MSR supported = false
SGX: Software Guard Extensions supported = false
BMI1 instructions = true
HLE hardware lock elision = false
AVX2: advanced vector extensions 2 = false
FDP_EXCPTN_ONLY = false
SMEP supervisor mode exec protection = false
BMI2 instructions = false
enhanced REP MOVSB/STOSB = false
INVPCID instruction = false
RTM: restricted transactional memory = false
RDT-CMT/PQoS cache monitoring = false
deprecated FPU CS/DS = false
MPX: intel memory protection extensions = false
RDT-CAT/PQE cache allocation = false
AVX512F: AVX-512 foundation instructions = false
AVX512DQ: double & quadword instructions = false
RDSEED instruction = false
ADX instructions = false
SMAP: supervisor mode access prevention = false
AVX512IFMA: integer fused multiply add = false
PCOMMIT instruction = false
CLFLUSHOPT instruction = false
CLWB instruction = false
Intel processor trace = false
AVX512PF: prefetch instructions = false
AVX512ER: exponent & reciprocal instrs = false
AVX512CD: conflict detection instrs = false
SHA instructions = false
AVX512BW: byte & word instructions = false
AVX512VL: vector length = false
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
LA57: 57-bit addrs & 5-level paging = false
BNDLDX/BNDSTX MAWAU value in 64-bit mode = 0x0 (0)
RDPID: read processor ID supported = false
KL: key locker = false
bus lock detection = false
CLDEMOTE supports cache line demote = false
MOVDIRI instruction = false
MOVDIR64B instruction = false
ENQCMD instruction = false
SGX_LC: SGX launch config supported = false
PKS: supervisor protection keys = false
SGX-KEYS: SGX attestation services = false
AVX512_4VNNIW: neural network instrs = false
AVX512_4FMAPS: multiply acc single prec = false
fast short REP MOV = false
UINTR: user interrupts = false
AVX512_VP2INTERSECT: intersect mask regs = false
IA32_MCU_OPT_CTRL SRBDS mitigation MSR = false
VERW MD_CLEAR microcode support = false
RTM transaction always aborts = false
IA32_TSX_FORCE_ABORT MSR = false
SERIALIZE instruction = false
hybrid part = false
TSXLDTRK: TSX suspend load addr tracking = false
PCONFIG instruction = false
LBR: architectural last branch records = false
CET_IBT: CET indirect branch tracking = false
AMX-BF16: tile bfloat16 support = false
AVX512_FP16: fp16 support = false
AMX-TILE: tile architecture support = false
AMX-INT8: tile 8-bit integer support = 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):
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)
core cycle event = not available
instruction retired event = not available
reference cycles event = not available
last-level cache ref event = not available
last-level cache miss event = not available
branch inst retired event = not available
branch mispred retired event = not available
top-down slots event = not available
fixed counter 0 supported = false
fixed counter 1 supported = false
fixed counter 2 supported = false
fixed counter 3 supported = false
fixed counter 4 supported = false
fixed counter 5 supported = false
fixed counter 6 supported = false
fixed counter 7 supported = false
fixed counter 8 supported = false
fixed counter 9 supported = false
fixed counter 10 supported = false
fixed counter 11 supported = false
fixed counter 12 supported = false
fixed counter 13 supported = false
fixed counter 14 supported = false
fixed counter 15 supported = false
fixed counter 16 supported = false
fixed counter 17 supported = false
fixed counter 18 supported = false
fixed counter 19 supported = false
fixed counter 20 supported = false
fixed counter 21 supported = false
fixed counter 22 supported = false
fixed counter 23 supported = false
fixed counter 24 supported = false
fixed counter 25 supported = false
fixed counter 26 supported = false
fixed counter 27 supported = false
fixed counter 28 supported = false
fixed counter 29 supported = false
fixed counter 30 supported = false
fixed counter 31 supported = false
number of contiguous 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 = invalid (0)
bit width of level = 0x0 (0)
number of logical processors at level = 0x0 (0)
XSAVE features (0xd/0):
XCR0 valid bit field mask = 0x4000000000000007
x87 state = true
SSE state = true
AVX state = true
MPX BNDREGS = false
MPX BNDCSR = false
AVX-512 opmask = false
AVX-512 ZMM_Hi256 = false
AVX-512 Hi16_ZMM = false
PKRU state = false
XTILECFG state = false
XTILEDATA state = false
bytes required by fields in XCR0 = 0x00000340 (832)
bytes required by XSAVE/XRSTOR area = 0x000003c0 (960)
XSAVEOPT instruction = false
XSAVEC instruction = false
XGETBV instruction = false
XSAVES/XRSTORS instructions = false
XFD: extended feature disable supported = false
SAVE area size in bytes = 0x00000000 (0)
IA32_XSS valid bit field mask = 0x0000000000000000
PT state = false
PASID state = false
CET_U user state = false
CET_S supervisor state = false
HDC state = false
UINTR state = false
LBR state = false
HWP state = false
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
XFD faulting supported = false
LWP features (0xd/0x3e):
LWP save state byte size = 0x00000080 (128)
LWP save state byte offset = 0x00000340 (832)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
XFD faulting supported = false
extended processor signature (0x80000001/eax):
family/generation = 0xf (15)
model = 0x3 (3)
stepping id = 0x1 (1)
extended family = 0x6 (6)
extended model = 0x1 (1)
(family synth) = 0x15 (21)
(model synth) = 0x13 (19)
(simple synth) = AMD (unknown type) (Richland RL-A1) [Piledriver], 32nm
extended feature flags (0x80000001/edx):
x87 FPU on chip = true
virtual-8086 mode enhancement = true
debugging extensions = true
page size extensions = true
time stamp counter = true
RDMSR and WRMSR support = true
physical address extensions = true
machine check exception = true
CMPXCHG8B inst. = true
APIC on chip = true
SYSCALL and SYSRET instructions = true
memory type range registers = true
global paging extension = true
machine check architecture = true
conditional move/compare instruction = true
page attribute table = true
page size extension = true
multiprocessing capable = false
no-execute page protection = true
AMD multimedia instruction extensions = true
MMX Technology = true
FXSAVE/FXRSTOR = true
SSE extensions = true
1-GB large page support = true
RDTSCP = true
long mode (AA-64) = true
3DNow! instruction extensions = false
3DNow! instructions = false
extended brand id (0x80000001/ebx):
raw = 0x20000000 (536870912)
BrandId = 0x0 (0)
PkgType = FM2 (PGA) (2)
AMD feature flags (0x80000001/ecx):
LAHF/SAHF supported in 64-bit mode = true
CMP Legacy = true
SVM: secure virtual machine = true
extended APIC space = true
AltMovCr8 = true
LZCNT advanced bit manipulation = true
SSE4A support = true
misaligned SSE mode = true
3DNow! PREFETCH/PREFETCHW instructions = true
OS visible workaround = true
instruction based sampling = true
XOP support = true
SKINIT/STGI support = true
watchdog timer support = true
lightweight profiling support = true
4-operand FMA instruction = true
TCE: translation cache extension = true
NodeId MSR C001100C = true
TBM support = true
topology extensions = true
core performance counter extensions = true
NB/DF performance counter extensions = true
data breakpoint extension = false
performance time-stamp counter support = false
LLC performance counter extensions = false
MWAITX/MONITORX supported = false
Address mask extension support = false
brand = "AMD A6-6400K APU with Radeon(tm) HD Graphics "
L1 TLB/cache information: 2M/4M pages & L1 TLB (0x80000005/eax):
instruction # entries = 0x18 (24)
instruction associativity = 0xff (255)
data # entries = 0x40 (64)
data associativity = 0xff (255)
L1 TLB/cache information: 4K pages & L1 TLB (0x80000005/ebx):
instruction # entries = 0x30 (48)
instruction associativity = 0xff (255)
data # entries = 0x40 (64)
data associativity = 0xff (255)
L1 data cache information (0x80000005/ecx):
line size (bytes) = 0x40 (64)
lines per tag = 0x1 (1)
associativity = 0x4 (4)
size (KB) = 0x10 (16)
L1 instruction cache information (0x80000005/edx):
line size (bytes) = 0x40 (64)
lines per tag = 0x1 (1)
associativity = 0x2 (2)
size (KB) = 0x40 (64)
L2 TLB/cache information: 2M/4M pages & L2 TLB (0x80000006/eax):
instruction # entries = 0x400 (1024)
instruction associativity = 8 to 15-way (6)
data # entries = 0x400 (1024)
data associativity = 8 to 15-way (6)
L2 TLB/cache information: 4K pages & L2 TLB (0x80000006/ebx):
instruction # entries = 0x200 (512)
instruction associativity = 4 to 5-way (4)
data # entries = 0x400 (1024)
data associativity = 8 to 15-way (6)
L2 unified cache information (0x80000006/ecx):
line size (bytes) = 0x40 (64)
lines per tag = 0x1 (1)
associativity = 16 to 31-way (8)
size (KB) = 0x400 (1024)
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 = true
FID: frequency ID control = false
VID: voltage ID control = false
TTP: thermal trip = true
TM: thermal monitor = true
STC: software thermal control = false
100 MHz multiplier control = true
hardware P-State control = true
TscInvariant = true
CPB: core performance boost = true
read-only effective frequency interface = true
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 = 0x30 (48)
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
INVLPGB instruction = false
RDPRU instruction = false
memory bandwidth enforcement = false
MCOMMIT instruction = false
WBNOINVD instruction = false
IBPB: indirect branch prediction barrier = true
interruptible WBINVD, WBNOINVD = false
IBRS: indirect branch restr speculation = false
STIBP: 1 thr indirect branch predictor = false
CPU prefers: IBRS always on = false
CPU prefers: STIBP always on = false
IBRS preferred over software solution = false
IBRS provides same mode protection = false
EFER[LMSLE] not supported = false
INVLPGB supports TLB flush guest nested = false
ppin processor id number supported = false
SSBD: speculative store bypass disable = false
virtualized SSBD = false
SSBD fixed in hardware = false
CPPC: collaborative processor perf ctrl = false
PSFD: predictive store forward disable = false
not vulnerable to branch type confusion = false
branch sampling feature support = false
(vuln to branch type confusion synth) = true
Size Identifiers (0x80000008/ecx):
number of CPU cores = 0x2 (2)
ApicIdCoreIdSize = 0x4 (4)
performance time-stamp counter size = 40 bits (0)
Feature Extended Size (0x80000008/edx):
max page count for INVLPGB instruction = 0x0 (0)
RDPRU instruction max input support = 0x0 (0)
SVM Secure Virtual Machine (0x8000000a/eax):
SvmRev: SVM revision = 0x1 (1)
SVM Secure Virtual Machine (0x8000000a/edx):
nested paging = true
LBR virtualization = true
SVM lock = true
NRIP save = true
MSR based TSC rate control = true
VMCB clean bits support = true
flush by ASID = true
decode assists = true
SSSE3/SSE5 opcode set disable = false
pause intercept filter = true
pause filter threshold = true
AVIC: AMD virtual interrupt controller = false
virtualized VMLOAD/VMSAVE = false
virtualized global interrupt flag (GIF) = false
GMET: guest mode execute trap = false
X2AVIC: virtualized X2APIC = false
supervisor shadow stack = false
guest Spec_ctl support = false
ROGPT: read-only guest page table = false
host MCE override = false
INVLPGB/TLBSYNC hyperv interc enable = false
VNMI: NMI virtualization = false
IBS virtualization = false
guest SVME addr check = false
NASID: number of address space identifiers = 0x10000 (65536):
L1 TLB information: 1G pages (0x80000019/eax):
instruction # entries = 0x18 (24)
instruction associativity = full (15)
data # entries = 0x40 (64)
data associativity = full (15)
L2 TLB information: 1G pages (0x80000019/ebx):
instruction # entries = 0x400 (1024)
instruction associativity = 8 to 15-way (6)
data # entries = 0x400 (1024)
data associativity = 8 to 15-way (6)
Performance Optimization Identifiers (0x8000001a/eax):
128-bit SSE executed full-width = true
MOVU* better than MOVL*/MOVH* = true
256-bit SSE executed full-width = false
Instruction Based Sampling Identifiers (0x8000001b/eax):
IBS feature flags valid = true
IBS fetch sampling = true
IBS execution sampling = true
read write of op counter = true
op counting mode = true
branch target address reporting = true
IbsOpCurCnt and IbsOpMaxCnt extend 7 = true
invalid RIP indication support = true
fused branch micro-op indication support = false
IBS fetch control extended MSR support = false
IBS op data 4 MSR support = false
IBS L3 miss filtering support = false
Lightweight Profiling Capabilities: Availability (0x8000001c/eax):
lightweight profiling = false
LWPVAL instruction = false
instruction retired event = false
branch retired event = false
DC miss event = false
core clocks not halted event = false
core reference clocks not halted event = false
continuous mode sampling = false
tsc in event record = false
interrupt on threshold overflow = false
Lightweight Profiling Capabilities: Supported (0x8000001c/edx):
lightweight profiling = true
LWPVAL instruction = true
instruction retired event = true
branch retired event = true
DC miss event = false
core clocks not halted event = false
core reference clocks not halted event = false
continuous mode sampling = false
tsc in event record = false
interrupt on threshold overflow = true
Lightweight Profiling Capabilities (0x8000001c/ebx):
LWPCB byte size = 0x13 (19)
event record byte size = 0x20 (32)
maximum EventId = 0x3 (3)
EventInterval1 field offset = 0x80 (128)
Lightweight Profiling Capabilities (0x8000001c/ecx):
latency counter bit size = 0x0 (0)
data cache miss address valid = false
amount cache latency is rounded = 0x0 (0)
LWP implementation version = 0x1 (1)
event ring buffer size in records = 0x1 (1)
branch prediction filtering = false
IP filtering = false
cache level filtering = false
cache latency filteing = false
Cache Properties (0x8000001d):
--- cache 0 ---
type = data (1)
level = 0x1 (1)
self-initializing = true
fully associative = false
extra cores sharing this cache = 0x0 (0)
line size in bytes = 0x40 (64)
physical line partitions = 0x1 (1)
number of ways = 0x4 (4)
number of sets = 64
write-back invalidate = false
cache inclusive of lower levels = false
(synth size) = 16384 (16 KB)
--- cache 1 ---
type = instruction (2)
level = 0x1 (1)
self-initializing = true
fully associative = false
extra cores sharing this cache = 0x1 (1)
line size in bytes = 0x40 (64)
physical line partitions = 0x1 (1)
number of ways = 0x2 (2)
number of sets = 512
write-back invalidate = false
cache inclusive of lower levels = false
(synth size) = 65536 (64 KB)
--- cache 2 ---
type = unified (3)
level = 0x2 (2)
self-initializing = true
fully associative = false
extra cores sharing this cache = 0x1 (1)
line size in bytes = 0x40 (64)
physical line partitions = 0x1 (1)
number of ways = 0x10 (16)
number of sets = 1024
write-back invalidate = true
cache inclusive of lower levels = false
(synth size) = 1048576 (1024 KB)
extended APIC ID = 16
Compute Unit Identifiers (0x8000001e/ebx):
compute unit ID = 0x0 (0)
cores per compute unit = 0x2 (2)
Node Identifiers (0x8000001e/ecx):
node ID = 0x0 (0)
nodes per processor = 0x1 (1)
(instruction supported synth):
CMPXCHG8B = true
conditional move/compare = true
PREFETCH/PREFETCHW = true
(multi-processing synth) = multi-core (c=2)
(multi-processing method) = AMD
(APIC widths synth): CORE_width=1 SMT_width=0
(APIC synth): PKG_ID=0 CORE_ID=0 SMT_ID=0
(uarch synth) = AMD Piledriver, 32nm
(synth) = AMD A-Series (Richland RL-A1) [Piledriver], 32nm
CPU 1:
vendor_id = "AuthenticAMD"
version information (1/eax):
processor type = primary processor (0)
family = 0xf (15)
model = 0x3 (3)
stepping id = 0x1 (1)
extended family = 0x6 (6)
extended model = 0x1 (1)
(family synth) = 0x15 (21)
(model synth) = 0x13 (19)
(simple synth) = AMD (unknown type) (Richland RL-A1) [Piledriver], 32nm
miscellaneous (1/ebx):
process local APIC physical ID = 0x1 (1)
maximum IDs for CPUs in pkg = 0x2 (2)
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 = false
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 = true
CPL-qualified debug store = false
VMX: virtual machine extensions = false
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 = false
DCA: direct cache access = false
SSE4.1 extensions = true
SSE4.2 extensions = true
x2APIC: extended xAPIC support = false
MOVBE instruction = false
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 = false
hypervisor guest status = false
cache and TLB information (2):
processor serial number = 0061-0F31-0000-0000-0000-0000
deterministic cache parameters (4):
--- cache 0 ---
cache type = no more caches (0)
MONITOR/MWAIT (5):
smallest monitor-line size (bytes) = 0x40 (64)
largest monitor-line size (bytes) = 0x40 (64)
enum of Monitor-MWAIT exts supported = true
supports intrs as break-event for MWAIT = true
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 MSRs supported = false
ignoring idle logical processor HWP req = false
Thread Director = false
IA32_HW_FEEDBACK_THREAD_CONFIG bit 25 = false
digital thermometer thresholds = 0x0 (0)
hardware coordination feedback = true
ACNT2 available = false
performance-energy bias capability = false
number of enh hardware feedback classes = 0x0 (0)
performance capability reporting = false
energy efficiency capability reporting = false
size of feedback struct (4KB pages) = 0x1 (1)
index of CPU's row in feedback struct = 0x0 (0)
extended feature flags (7):
FSGSBASE instructions = false
IA32_TSC_ADJUST MSR supported = false
SGX: Software Guard Extensions supported = false
BMI1 instructions = true
HLE hardware lock elision = false
AVX2: advanced vector extensions 2 = false
FDP_EXCPTN_ONLY = false
SMEP supervisor mode exec protection = false
BMI2 instructions = false
enhanced REP MOVSB/STOSB = false
INVPCID instruction = false
RTM: restricted transactional memory = false
RDT-CMT/PQoS cache monitoring = false
deprecated FPU CS/DS = false
MPX: intel memory protection extensions = false
RDT-CAT/PQE cache allocation = false
AVX512F: AVX-512 foundation instructions = false
AVX512DQ: double & quadword instructions = false
RDSEED instruction = false
ADX instructions = false
SMAP: supervisor mode access prevention = false
AVX512IFMA: integer fused multiply add = false
PCOMMIT instruction = false
CLFLUSHOPT instruction = false
CLWB instruction = false
Intel processor trace = false
AVX512PF: prefetch instructions = false
AVX512ER: exponent & reciprocal instrs = false
AVX512CD: conflict detection instrs = false
SHA instructions = false
AVX512BW: byte & word instructions = false
AVX512VL: vector length = false
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
LA57: 57-bit addrs & 5-level paging = false
BNDLDX/BNDSTX MAWAU value in 64-bit mode = 0x0 (0)
RDPID: read processor ID supported = false
KL: key locker = false
bus lock detection = false
CLDEMOTE supports cache line demote = false
MOVDIRI instruction = false
MOVDIR64B instruction = false
ENQCMD instruction = false
SGX_LC: SGX launch config supported = false
PKS: supervisor protection keys = false
SGX-KEYS: SGX attestation services = false
AVX512_4VNNIW: neural network instrs = false
AVX512_4FMAPS: multiply acc single prec = false
fast short REP MOV = false
UINTR: user interrupts = false
AVX512_VP2INTERSECT: intersect mask regs = false
IA32_MCU_OPT_CTRL SRBDS mitigation MSR = false
VERW MD_CLEAR microcode support = false
RTM transaction always aborts = false
IA32_TSX_FORCE_ABORT MSR = false
SERIALIZE instruction = false
hybrid part = false
TSXLDTRK: TSX suspend load addr tracking = false
PCONFIG instruction = false
LBR: architectural last branch records = false
CET_IBT: CET indirect branch tracking = false
AMX-BF16: tile bfloat16 support = false
AVX512_FP16: fp16 support = false
AMX-TILE: tile architecture support = false
AMX-INT8: tile 8-bit integer support = 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):
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)
core cycle event = not available
instruction retired event = not available
reference cycles event = not available
last-level cache ref event = not available
last-level cache miss event = not available
branch inst retired event = not available
branch mispred retired event = not available
top-down slots event = not available
fixed counter 0 supported = false
fixed counter 1 supported = false
fixed counter 2 supported = false
fixed counter 3 supported = false
fixed counter 4 supported = false
fixed counter 5 supported = false
fixed counter 6 supported = false
fixed counter 7 supported = false
fixed counter 8 supported = false
fixed counter 9 supported = false
fixed counter 10 supported = false
fixed counter 11 supported = false
fixed counter 12 supported = false
fixed counter 13 supported = false
fixed counter 14 supported = false
fixed counter 15 supported = false
fixed counter 16 supported = false
fixed counter 17 supported = false
fixed counter 18 supported = false
fixed counter 19 supported = false
fixed counter 20 supported = false
fixed counter 21 supported = false
fixed counter 22 supported = false
fixed counter 23 supported = false
fixed counter 24 supported = false
fixed counter 25 supported = false
fixed counter 26 supported = false
fixed counter 27 supported = false
fixed counter 28 supported = false
fixed counter 29 supported = false
fixed counter 30 supported = false
fixed counter 31 supported = false
number of contiguous 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 = invalid (0)
bit width of level = 0x0 (0)
number of logical processors at level = 0x0 (0)
XSAVE features (0xd/0):
XCR0 valid bit field mask = 0x4000000000000007
x87 state = true
SSE state = true
AVX state = true
MPX BNDREGS = false
MPX BNDCSR = false
AVX-512 opmask = false
AVX-512 ZMM_Hi256 = false
AVX-512 Hi16_ZMM = false
PKRU state = false
XTILECFG state = false
XTILEDATA state = false
bytes required by fields in XCR0 = 0x00000340 (832)
bytes required by XSAVE/XRSTOR area = 0x000003c0 (960)
XSAVEOPT instruction = false
XSAVEC instruction = false
XGETBV instruction = false
XSAVES/XRSTORS instructions = false
XFD: extended feature disable supported = false
SAVE area size in bytes = 0x00000000 (0)
IA32_XSS valid bit field mask = 0x0000000000000000
PT state = false
PASID state = false
CET_U user state = false
CET_S supervisor state = false
HDC state = false
UINTR state = false
LBR state = false
HWP state = false
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
XFD faulting supported = false
LWP features (0xd/0x3e):
LWP save state byte size = 0x00000080 (128)
LWP save state byte offset = 0x00000340 (832)
supported in IA32_XSS or XCR0 = XCR0 (user state)
64-byte alignment in compacted XSAVE = false
XFD faulting supported = false
extended processor signature (0x80000001/eax):
family/generation = 0xf (15)
model = 0x3 (3)
stepping id = 0x1 (1)
extended family = 0x6 (6)
extended model = 0x1 (1)
(family synth) = 0x15 (21)
(model synth) = 0x13 (19)
(simple synth) = AMD (unknown type) (Richland RL-A1) [Piledriver], 32nm
extended feature flags (0x80000001/edx):
x87 FPU on chip = true
virtual-8086 mode enhancement = true
debugging extensions = true
page size extensions = true
time stamp counter = true
RDMSR and WRMSR support = true
physical address extensions = true
machine check exception = true
CMPXCHG8B inst. = true
APIC on chip = true
SYSCALL and SYSRET instructions = true
memory type range registers = true
global paging extension = true
machine check architecture = true
conditional move/compare instruction = true
page attribute table = true
page size extension = true
multiprocessing capable = false
no-execute page protection = true
AMD multimedia instruction extensions = true
MMX Technology = true
FXSAVE/FXRSTOR = true
SSE extensions = true
1-GB large page support = true
RDTSCP = true
long mode (AA-64) = true
3DNow! instruction extensions = false
3DNow! instructions = false
extended brand id (0x80000001/ebx):
raw = 0x20000000 (536870912)
BrandId = 0x0 (0)
PkgType = FM2 (PGA) (2)
AMD feature flags (0x80000001/ecx):
LAHF/SAHF supported in 64-bit mode = true
CMP Legacy = true
SVM: secure virtual machine = true
extended APIC space = true
AltMovCr8 = true
LZCNT advanced bit manipulation = true
SSE4A support = true
misaligned SSE mode = true
3DNow! PREFETCH/PREFETCHW instructions = true
OS visible workaround = true
instruction based sampling = true
XOP support = true
SKINIT/STGI support = true
watchdog timer support = true
lightweight profiling support = true
4-operand FMA instruction = true
TCE: translation cache extension = true
NodeId MSR C001100C = true
TBM support = true
topology extensions = true
core performance counter extensions = true
NB/DF performance counter extensions = true
data breakpoint extension = false
performance time-stamp counter support = false
LLC performance counter extensions = false
MWAITX/MONITORX supported = false
Address mask extension support = false
brand = "AMD A6-6400K APU with Radeon(tm) HD Graphics "
L1 TLB/cache information: 2M/4M pages & L1 TLB (0x80000005/eax):
instruction # entries = 0x18 (24)
instruction associativity = 0xff (255)
data # entries = 0x40 (64)
data associativity = 0xff (255)
L1 TLB/cache information: 4K pages & L1 TLB (0x80000005/ebx):
instruction # entries = 0x30 (48)
instruction associativity = 0xff (255)
data # entries = 0x40 (64)
data associativity = 0xff (255)
L1 data cache information (0x80000005/ecx):
line size (bytes) = 0x40 (64)
lines per tag = 0x1 (1)
associativity = 0x4 (4)
size (KB) = 0x10 (16)
L1 instruction cache information (0x80000005/edx):
line size (bytes) = 0x40 (64)
lines per tag = 0x1 (1)
associativity = 0x2 (2)
size (KB) = 0x40 (64)
L2 TLB/cache information: 2M/4M pages & L2 TLB (0x80000006/eax):
instruction # entries = 0x400 (1024)
instruction associativity = 8 to 15-way (6)
data # entries = 0x400 (1024)
data associativity = 8 to 15-way (6)
L2 TLB/cache information: 4K pages & L2 TLB (0x80000006/ebx):
instruction # entries = 0x200 (512)
instruction associativity = 4 to 5-way (4)
data # entries = 0x400 (1024)
data associativity = 8 to 15-way (6)
L2 unified cache information (0x80000006/ecx):
line size (bytes) = 0x40 (64)
lines per tag = 0x1 (1)
associativity = 16 to 31-way (8)
size (KB) = 0x400 (1024)
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 = true
FID: frequency ID control = false
VID: voltage ID control = false
TTP: thermal trip = true
TM: thermal monitor = true
STC: software thermal control = false
100 MHz multiplier control = true
hardware P-State control = true
TscInvariant = true
CPB: core performance boost = true
read-only effective frequency interface = true
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 = 0x30 (48)
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
INVLPGB instruction = false
RDPRU instruction = false
memory bandwidth enforcement = false
MCOMMIT instruction = false
WBNOINVD instruction = false
IBPB: indirect branch prediction barrier = true
interruptible WBINVD, WBNOINVD = false
IBRS: indirect branch restr speculation = false
STIBP: 1 thr indirect branch predictor = false
CPU prefers: IBRS always on = false
CPU prefers: STIBP always on = false
IBRS preferred over software solution = false
IBRS provides same mode protection = false
EFER[LMSLE] not supported = false
INVLPGB supports TLB flush guest nested = false
ppin processor id number supported = false
SSBD: speculative store bypass disable = false
virtualized SSBD = false
SSBD fixed in hardware = false
CPPC: collaborative processor perf ctrl = false
PSFD: predictive store forward disable = false
not vulnerable to branch type confusion = false
branch sampling feature support = false
(vuln to branch type confusion synth) = true
Size Identifiers (0x80000008/ecx):
number of CPU cores = 0x2 (2)
ApicIdCoreIdSize = 0x4 (4)
performance time-stamp counter size = 40 bits (0)
Feature Extended Size (0x80000008/edx):
max page count for INVLPGB instruction = 0x0 (0)
RDPRU instruction max input support = 0x0 (0)
SVM Secure Virtual Machine (0x8000000a/eax):
SvmRev: SVM revision = 0x1 (1)
SVM Secure Virtual Machine (0x8000000a/edx):
nested paging = true
LBR virtualization = true
SVM lock = true
NRIP save = true
MSR based TSC rate control = true
VMCB clean bits support = true
flush by ASID = true
decode assists = true
SSSE3/SSE5 opcode set disable = false
pause intercept filter = true
pause filter threshold = true
AVIC: AMD virtual interrupt controller = false
virtualized VMLOAD/VMSAVE = false
virtualized global interrupt flag (GIF) = false
GMET: guest mode execute trap = false
X2AVIC: virtualized X2APIC = false
supervisor shadow stack = false
guest Spec_ctl support = false
ROGPT: read-only guest page table = false
host MCE override = false
INVLPGB/TLBSYNC hyperv interc enable = false
VNMI: NMI virtualization = false
IBS virtualization = false
guest SVME addr check = false
NASID: number of address space identifiers = 0x10000 (65536):
L1 TLB information: 1G pages (0x80000019/eax):
instruction # entries = 0x18 (24)
instruction associativity = full (15)
data # entries = 0x40 (64)
data associativity = full (15)
L2 TLB information: 1G pages (0x80000019/ebx):
instruction # entries = 0x400 (1024)
instruction associativity = 8 to 15-way (6)
data # entries = 0x400 (1024)
data associativity = 8 to 15-way (6)
Performance Optimization Identifiers (0x8000001a/eax):
128-bit SSE executed full-width = true
MOVU* better than MOVL*/MOVH* = true
256-bit SSE executed full-width = false
Instruction Based Sampling Identifiers (0x8000001b/eax):
IBS feature flags valid = true
IBS fetch sampling = true
IBS execution sampling = true
read write of op counter = true
op counting mode = true
branch target address reporting = true
IbsOpCurCnt and IbsOpMaxCnt extend 7 = true
invalid RIP indication support = true
fused branch micro-op indication support = false
IBS fetch control extended MSR support = false
IBS op data 4 MSR support = false
IBS L3 miss filtering support = false
Lightweight Profiling Capabilities: Availability (0x8000001c/eax):
lightweight profiling = false
LWPVAL instruction = false
instruction retired event = false
branch retired event = false
DC miss event = false
core clocks not halted event = false
core reference clocks not halted event = false
continuous mode sampling = false
tsc in event record = false
interrupt on threshold overflow = false
Lightweight Profiling Capabilities: Supported (0x8000001c/edx):
lightweight profiling = true
LWPVAL instruction = true
instruction retired event = true
branch retired event = true
DC miss event = false
core clocks not halted event = false
core reference clocks not halted event = false
continuous mode sampling = false
tsc in event record = false
interrupt on threshold overflow = true
Lightweight Profiling Capabilities (0x8000001c/ebx):
LWPCB byte size = 0x13 (19)
event record byte size = 0x20 (32)
maximum EventId = 0x3 (3)
EventInterval1 field offset = 0x80 (128)
Lightweight Profiling Capabilities (0x8000001c/ecx):
latency counter bit size = 0x0 (0)
data cache miss address valid = false
amount cache latency is rounded = 0x0 (0)
LWP implementation version = 0x1 (1)
event ring buffer size in records = 0x1 (1)
branch prediction filtering = false
IP filtering = false
cache level filtering = false
cache latency filteing = false
Cache Properties (0x8000001d):
--- cache 0 ---
type = data (1)
level = 0x1 (1)
self-initializing = true
fully associative = false
extra cores sharing this cache = 0x0 (0)
line size in bytes = 0x40 (64)
physical line partitions = 0x1 (1)
number of ways = 0x4 (4)
number of sets = 64
write-back invalidate = false
cache inclusive of lower levels = false
(synth size) = 16384 (16 KB)
--- cache 1 ---
type = instruction (2)
level = 0x1 (1)
self-initializing = true
fully associative = false
extra cores sharing this cache = 0x1 (1)
line size in bytes = 0x40 (64)
physical line partitions = 0x1 (1)
number of ways = 0x2 (2)
number of sets = 512
write-back invalidate = false
cache inclusive of lower levels = false
(synth size) = 65536 (64 KB)
--- cache 2 ---
type = unified (3)
level = 0x2 (2)
self-initializing = true
fully associative = false
extra cores sharing this cache = 0x1 (1)
line size in bytes = 0x40 (64)
physical line partitions = 0x1 (1)
number of ways = 0x10 (16)
number of sets = 1024
write-back invalidate = true
cache inclusive of lower levels = false
(synth size) = 1048576 (1024 KB)
extended APIC ID = 17
Compute Unit Identifiers (0x8000001e/ebx):
compute unit ID = 0x0 (0)
cores per compute unit = 0x2 (2)
Node Identifiers (0x8000001e/ecx):
node ID = 0x0 (0)
nodes per processor = 0x1 (1)
(instruction supported synth):
CMPXCHG8B = true
conditional move/compare = true
PREFETCH/PREFETCHW = true
(multi-processing synth) = multi-core (c=2)
(multi-processing method) = AMD
(APIC widths synth): CORE_width=1 SMT_width=0
(APIC synth): PKG_ID=0 CORE_ID=1 SMT_ID=0
(uarch synth) = AMD Piledriver, 32nm
(synth) = AMD A-Series (Richland RL-A1) [Piledriver], 32nm