Discussion:
Disabling hyperthreading on Lenovo T460s now possible
Daniel Gracia
2018-09-25 20:54:24 UTC
Permalink
To whom it may concern, I just updated the BIOS of my T460s to 1.39
and it now allows to disable hyperthreading (there are a bunch of
other new config options). Find dmesg ahead.

Regards!

OpenBSD 6.4-beta (GENERIC.MP) #295: Fri Sep 14 09:02:03 MDT 2018
***@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8304644096 (7919MB)
avail mem = 8043687936 (7671MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xaf054000 (65 entries)
bios0: vendor LENOVO version "N1CET71W (1.39 )" date 09/04/2018
bios0: LENOVO 20F9005CMS
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP TCPA SSDT SSDT TPM2 UEFI SSDT SSDT ECDT HPET
APIC MCFG SSDT DBGP DBG2 BOOT BATB SLIC SSDT SSDT MSDM DMAR ASF! FPDT
UEFI
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpiec0 at acpi0
acpihpet0 at acpi0: 23999999 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz, 2195.80 MHz, 06-4e-03
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 24MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz, 2194.90 MHz, 06-4e-03
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xf8000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG0)
acpiprt2 at acpi0: bus -1 (PEG1)
acpiprt3 at acpi0: bus -1 (PEG2)
acpiprt4 at acpi0: bus 2 (EXP1)
acpiprt5 at acpi0: bus -1 (EXP2)
acpiprt6 at acpi0: bus 4 (EXP3)
acpiprt7 at acpi0: bus -1 (EXP5)
acpiprt8 at acpi0: bus -1 (RP09)
acpicpu0 at acpi0: C3(***@1034 ***@0x60), C2(***@151
***@0x33), C1(***@1 mwait.1), PSS
acpicpu1 at acpi0: C3(***@1034 ***@0x60), C2(***@151
***@0x33), C1(***@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI
acpipwrres1 at acpi0: PG00, resource for PEG0
acpipwrres2 at acpi0: PG01, resource for PEG1
acpipwrres3 at acpi0: PG02, resource for PEG2
acpipwrres4 at acpi0: WRST
acpipwrres5 at acpi0: WRST
acpitz0 at acpi0: critical temperature is 128 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpicmos0 at acpi0
acpibat0 at acpi0: BAT0 model "00HW022" serial 3753 type LiP oem "SANYO"
acpibat1 at acpi0: BAT1 model "01AV405" serial 5654 type LION oem "SANYO"
acpiac0 at acpi0: AC unit online
acpithinkpad0 at acpi0
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT0E0C" at acpi0 not configured
"MSFT0101" at acpi0 not configured
acpivideo0 at acpi0: GFX0
acpivout at acpivideo0 not configured
cpu0: Enhanced SpeedStep 2195 MHz: speeds: 2301, 2300, 2200, 2100,
2000, 1800, 1700, 1500, 1400, 1300, 1100, 1000, 800, 700, 500, 400 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 6G Host" rev 0x08
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 520" rev 0x07
drm0 at inteldrm0
inteldrm0: msi
error: [drm:pid0:i915_firmware_load_error_print] *ERROR* failed to
load firmware i915/skl_dmc_ver1.bin (-22)
error: [drm:pid0:i915_gem_init_hw] *ERROR* Failed to initialize GuC,
error -8 (ignored)
inteldrm0: 1920x1080, 32bpp
error: [drm:pid0:intel_dp_link_training_clock_recovery] *ERROR* too
many full retries, give up
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel Core GMM" rev 0x00 at pci0 dev 8 function 0 not configured
xhci0 at pci0 dev 20 function 0 "Intel 100 Series xHCI" rev 0x21: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
pchtemp0 at pci0 dev 20 function 2 "Intel 100 Series Thermal" rev 0x21
"Intel 100 Series MEI" rev 0x21 at pci0 dev 22 function 0 not configured
ahci0 at pci0 dev 23 function 0 "Intel 100 Series AHCI" rev 0x21: msi,
AHCI 1.3.1
ahci0: port 1: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 1 lun 0: <ATA, INTEL SSDSCKKF25, LBF> SCSI3
0/direct fixed naa.55cd2e414d0b9ade
sd0: 244198MB, 512 bytes/sector, 500118192 sectors, thin
ppb0 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1: msi
pci1 at ppb0 bus 2
rtsx0 at pci1 dev 0 function 0 "Realtek RTS522A Card Reader" rev 0x01: msi
sdmmc0 at rtsx0: 4-bit, dma
ppb1 at pci0 dev 28 function 2 "Intel 100 Series PCIE" rev 0xf1: msi
pci2 at ppb1 bus 4
iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 8260" rev 0x3a, msi
pcib0 at pci0 dev 31 function 0 "Intel 100 Series LPC" rev 0x21
"Intel 100 Series PMC" rev 0x21 at pci0 dev 31 function 2 not configured
azalia0 at pci0 dev 31 function 3 "Intel 100 Series HD Audio" rev 0x21: msi
azalia0: codecs: Realtek/0x0293, Intel/0x2809, using Realtek/0x0293
audio0 at azalia0
ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x21:
apic 2 int 16
iic0 at ichiic0
em0 at pci0 dev 31 function 6 "Intel I219-V" rev 0x21: msi, address
c8:5b:76:66:28:66
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
wsmouse1 at pms0 mux 0
pms0: Synaptics clickpad, firmware 8.2, 0x1e2b1 0x943300
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
uhidev0 at uhub0 port 1 configuration 1 interface 0 "Logitech USB
Receiver" rev 2.00/29.01 addr 2
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub0 port 1 configuration 1 interface 1 "Logitech USB
Receiver" rev 2.00/29.01 addr 2
uhidev1: iclass 3/1, 17 report ids
ums0 at uhidev1 reportid 2: 16 buttons, Z and W dir
wsmouse2 at ums0 mux 0
uhid0 at uhidev1 reportid 3: input=4, output=0, feature=0
uhid1 at uhidev1 reportid 4: input=1, output=0, feature=0
uhid2 at uhidev1 reportid 16: input=6, output=6, feature=0
uhid3 at uhidev1 reportid 17: input=19, output=19, feature=0
cdce0 at uhub0 port 2 configuration 2 interface 0 "Huawei Technologies
Co., Ltd. HUAWEI Mobile" rev 2.00/1.02 addr 3
cdce0: could not find data bulk in
ugen0 at uhub0 port 2 configuration 2 "Huawei Technologies Co., Ltd.
HUAWEI Mobile" rev 2.00/1.02 addr 3
ugen1 at uhub0 port 5 "Generic EMV Smartcard Reader" rev 2.01/1.20 addr 4
ugen2 at uhub0 port 7 "Intel Bluetooth" rev 2.00/0.01 addr 5
scsibus2 at sdmmc0: 2 targets, initiator 0
sd1 at scsibus2 targ 1 lun 0: <SD/MMC, SD32G, 0030> SCSI2 0/direct removable
sd1: 30028MB, 512 bytes/sector, 61497344 sectors
uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony
Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.29 addr 6
video0 at uvideo0
ugen3 at uhub0 port 9 "Validity Sensors product 0x0090" rev 2.00/1.64 addr 7
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd0a (1e414939303cb184.a) swap on sd0b dump on sd0b
iwm0: hw rev 0x200, fw ver 16.242414.0, address e4:a7:a0:87:bd:c4
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