Yog tom qab Txog ZombieLoad Yog tias koj nyob hauv qhov kev ceeb ntshai xav paub yuav ua li cas lov tes taw Intel's Hyper-Threading feature los tiv thaiv kev siv lub zog tshiab zoo ib yam li Spectre thiab Meltdown, tom qab ntawd ua pa tob tob - Intel cov lus qhia tseeb tsis pom zoo ua qhov no rau feem ntau. rooj plaub.
ZombieLoad zoo ib yam li yav dhau los sab-channel tawm tsam uas yuam Intel processors kom nthuav tawm cov ntaub ntawv muaj txiaj ntsig zoo uas feem ntau yuav raug cais tawm thiab siv tau rau cov ntawv thov uas siv nws xwb. Cov kws tshawb fawb txog kev ruaj ntseg yav dhau los tau tshaj tawm tias qhov muaj qhov tsis zoo nyob hauv feem ntau Intel chips thiab tuaj yeem siv tau hauv Windows, MacOS thiab Linux.
Intel, rau nws feem, tsis pom zoo nrog qhov kev pheej hmoo ntawm ZombieLoad hnyav npaum li cas raug ntsuas. Lub tuam txhab txawm txiav txim siab muab ZombieLoad lub npe txawv - Microarchitectural Data Sampling (MDS) lossis Microarchitectural Data Sampling. Pom zoo, qhov no suab tsis txaus ntshai dua li kev siv rau qee cov zombies.
"Lub MDS qhov tsis zoo yog raws li cov ntaub ntawv piv txwv los ntawm cov qauv me me rau hauv CPU siv cov kev ua haujlwm hauv cheeb tsam kev xav txog kev ua haujlwm sab nraud," lub tuam txhab piav qhia. "Kev ua haujlwm ntawm MDS yog qhov nyuaj heev. Qhov tsis txaus ntseeg nws tus kheej tsis muab tus neeg tawm tsam nrog txoj hauv kev los xaiv cov ntaub ntawv lawv xav tau. "
"MDS twb tau hais nyob rau theem kho vajtse nyob rau hauv ntau ntawm peb qhov tseeb 8th thiab 9th tiam Intel Core processors, nrog rau XNUMXnd tiam Intel Xeon Scalable processor tsev neeg," lub tuam txhab hais. "Rau lwm cov khoom lag luam cuam tshuam, kev ntsuas kev txo qis yog muaj los ntawm kev hloov kho microcode ua ke nrog kev ua haujlwm tsim nyog thiab kev hloov kho software hypervisor, uas muaj pib hnub no. Peb muab ntawm peb lub vev xaib thiab txuas ntxiv txhawb nqa txhua tus kom khaws lawv cov kab ke tshiab raws li qhov no yog ib txoj hauv kev zoo tshaj plaws kom nyob nyab xeeb. "
Intel kuj tau qhia tias ZombieLoad pab pawg tshawb fawb tau ua haujlwm nrog lub tuam txhab thiab lwm tus hauv PC kev lag luam txhawm rau kho qhov tsis zoo ua ntej nws tau tshaj tawm rau pej xeem. "Peb xav ua tsaug rau cov kws tshawb fawb uas tau ua haujlwm nrog peb thiab peb cov neeg koom tes hauv kev lag luam rau lawv txoj kev koom tes rau kev sib koom tes daws teeb meem."
Yog li dab tsi txog Hyper-Threading?
Intel tau hais tias kev tsis ua haujlwm Hyper-Threading tsis tas yuav tsum tau lossis tsuas yog kev xaiv rau cov neeg siv PC. Qhov tseeb, Intel hais tias nws yog nyob ntawm txhua tus neeg siv khoom txiav txim siab yuav ua li cas. Yog tias koj tsis tuaj yeem lav qhov kev ruaj ntseg ntawm cov software koj tau nruab, ces yog, nws yog ib lub tswv yim zoo los lov tes taw Hyper-Threading. Yog tias cov software tsuas yog los ntawm Microsoft lub khw, los ntawm koj lub tuam txhab IT, lossis tsuas yog ntsia los ntawm qhov koj ntseeg tias yog qhov chaw ntseeg siab, koj tuaj yeem tso Hyper-Threading enabled. Nws tsuas yog nyob ntawm seb koj txhawj xeeb txog koj li kev nyab xeeb.
"Vim tias muaj ntau yam sib txawv ntawm cov neeg siv khoom, Intel tsis pom zoo kom tsis txhob siv Hyper-Threading vim nws yog ib qho tseem ceeb kom nkag siab tias nws tsis yog tib txoj hauv kev los muab kev tiv thaiv MDS thiab tsis muab kev tiv thaiv ntawm nws tus kheej," lub tuam txhab tau hais hauv nqe lus. .
Nyob rau tib lub sijhawm, cov kev cuam tshuam ntawm kev ua haujlwm ntawm cov tuam txhab ua haujlwm sib txawv ntawm ib leeg.
Google tau tso tawm kev kho rau Chrome OS uas cuam tshuam Hyper-Threading rau Chromebooks los ntawm lub neej ntawd. Cov neeg uas xav tig ntau lub xov tooj thev naus laus zis rov qab tuaj yeem ua nws tus kheej, lub tuam txhab hais.
Apple tau tshaj tawm qhov hloov tshiab rau MacOS Mojave thiab tshaj tawm tias lub tuam txhab cov neeg siv khoom, tshwj xeeb tshaj yog cov paub txog kev ruaj ntseg, tuaj yeem lov tes taw Hyper-Threading lawv tus kheej.
Microsoft tau hais tias nws tau tso tawm thaj ua rau thaj rau nws cov software los txo qhov kev pheej hmoo ntawm MDS, tab sis kuj tau sau tseg tias cov neeg siv khoom yuav tsum tau txais cov firmware hloov tshiab los ntawm lawv cov tuam txhab PC.
Vim yog qhov tseeb tias, rau feem ntau, cov neeg muag khoom ua haujlwm tau txiav txim siab tawm Hyper-Threading enabled, ZombieLoad kev hem thawj pom tau tias tsis loj npaum li nws zoo li ib hnub dhau los. Tsis tas li ntawd, tseem tsis tau paub txog qhov teeb meem uas tau siv los ntawm kev tawm tsam tiag.
Tib lub sijhawm, siv thaj ua rau thaj yam tsis muaj kev cuam tshuam Hyper-Threading thev naus laus zis yuav luag tsis txo qis kev ua haujlwm ntawm Intel processors.
Tab sis koj yuav tsis ntseeg nws yog tias koj saib nws Intel cuam tshuam ntawm kev ruaj ntseg thaj ua haujlwm ntawm kev ua haujlwm thaum Hyper-Threading yog neeg xiam. Lub tuam txhab thov tias thaj chaw ruaj ntseg, nrog rau kev ua tsis taus Hyper-Threading, muaj qhov cuam tshuam me me rau kev ua haujlwm.
Portal Kuv pom zoo tsis txaus siab rau Intel lub tswv yim tias kev ua tsis taus Hyper-Threading tsis muaj teeb meem tshwj xeeb, txawm hais tias Intel qhia hauv nws cov ntaub ntawv tias kev ua tau zoo tsis hloov pauv. Qhov teeb meem yog tias Intel qhov kev ntsuam xyuas yog cov khoom siv dag zog thaum tsis ua haujlwm Hyper-Threading, txij li lub tuam txhab tsis tau sim cov haujlwm tshwj xeeb ntawm ntau txoj xov. Yog tias Intel tau coj Blender, Cinebench, lossis lwm cov qauv ntsuas tsim los rau ntau cov tub ntxhais thiab cov xov tooj sib txuas, peb yuav pom tam sim ntawd qhov kev ua haujlwm loj heev poob.
Txhawm rau hais txog qhov tseem ceeb npaum li cas Hyper-Threading thev naus laus zis yog, koj tuaj yeem saib ntawm $ 9 Intel i9900-500K thiab $ 7 i9700-375K processors, qhov txawv ntawm qhov tseem ceeb yog lawv cov kev txhawb nqa rau Hyper-Threading. Disabling Hyper-Threading ntawm Intel processors yog qhov tsis txaus ntseeg rau txhua tus neeg uas mob siab txog ntau txoj xov zoo.
Tab sis muaj xov xwm zoo rau cov uas siv Intel processors tshiab kawg. Lub tuam txhab tau hais tias ntau ntawm nws qhov tseeb 8th thiab 9th tiam processors twb muaj kho vajtse microcode kho, yog li tsis muaj laj thawj rau i9-9900K cov tswv kom lov tes taw Hyper-Threading. Qhov txaus ntshai ntawm ZombieLoad yog pom tseeb dua rau cov txheej txheem qub. Cov tswv ntawm cov tshuab no yuav tsum tau tso siab rau kev ua haujlwm thiab kev hloov kho software, nrog rau kev ua haujlwm ntawm lawv cov kev daws teeb meem antivirus, kom txo tau qhov kev pheej hmoo ntawm kev tau txais cov cai phem. Cia peb rov nco txog qhov tseeb tias tam sim no tsis muaj kev tawm tsam siv ZombieLoad paub.
Tau qhov twg los: 3d xov.ru