I-Xen 4.18 sele ikhutshiwe kwaye ezi ziindaba zayo

xen

I-Xen yi-hypervisor ebonelela ngokhuseleko lodwa, ulawulo lwezixhobo, umgangatho weziqinisekiso zenkonzo, kunye nokufuduka koomatshini.

Emva kweenyanga ezili-11 zophuhliso, kwayeIprojekthi yeXen ibhengeze ukuqaliswa kwenguqulelo entsha de "Xen 4.18", efika ilayishwe ngeempawu ezininzi kunye nokuphuculwa, kunye nokuqhubela phambili okujoliswe kwi-high performance computing (HPC) izicelo, ukufundwa komatshini (ML) kunye neentlobo ezahlukeneyo zokhuseleko kunye nokuphucula ukusebenza.

Kwabo bangayazi iProjekthi ye-Xen, kufuneka wazi ukuba lo ngumthombo ovulekileyo we-hypervisor oxhasa i-x86, x86_64, i-IA64, i-PowerPC kunye nezinye izakhiwo ze-CPU.

"Olu kukhululwa lubonelela ngemigangatho emitsha yokusebenza okuphezulu kunye nokhuseleko lwamashishini, kodwa lulungiselela izakhiwo ze-HPC kunye nezicelo ze-AI / ML, ezifuna inani elikhulu lokucubungula idatha," kusho uKelly Choi, umphathi woluntu kwiProjekthi yeXen. "Sithanda ukubulela iinkokeli zeshishini kunye nabavelisi abathe banegalelo ekusungulweni."

I-Xen 4.18 Iimpawu eziNtsha eziPhambili

Kolu guqulelo lutsha lwe-Xen 4.18 oluvezwayo, kugxininiswe ukuba kuyilo lweArm, Ukwandiswa kweVector eScalable yaziswa (EVS) kwifom yokujonga kuqala esithembisa izakhono ezongeziweyo kwiinkqubo zeArm, kunye nenkqubo esezantsi yememori e-Xen kwi-Arm64 ibone uphuculo, iyenza ihambelane ngakumbi noyilo lweArm.

Kwakhona yongeze inkxaso yesakhelo seArm firmware kwiProfayili yeArm A (FF-A) kunye nesakhono sokulinga ukongeza nokususa iinodi kumthi wesixhobo seXen usebenzisa iifayile ze.dtbo.

Ngokumalunga nophuculo lwe-x86, kwiinkqubo ezine-Intel processors, i-Xen 4.18 yandisa inkxaso yayo nge i MSR_ARCH_CAPS ipharamitha, ebonakala ngoku kwiindwendwe kwaye inokuqwalasela ngefayile yoqwalaselo lomatshini. Kwiiprosesa ezikhutshwe ngo-2019 kwaye kamva, iparamitha ye-MSR_ARCH_CAPS ikuvumela ukuba ubone ukuba zeziphi izilungiso zehardware ezisetyenzisiweyo kubuthathaka obucingelwayo.

Ukongeza koku, sele iphunyeziwe inkxaso yokwenziwa ngenkani kwemisebenzi yenkqubo kwiDOITM, eqinisekisa ukuphunyezwa rhoqo kwexesha lemiyalelo, kungakhathaliseki ukuba idatha eqhutywe kule miyalelo.

Kwelinye icala, kolu guqulelo lutsha lweXen 4.18 singayifumana loo ntoe-CPUID_USER_DIS (CPUID Faulting) isongezo sibandakanyiwe iphunyezwe kwisizukulwana sesine seeprosesa ze-AMD EPYC. Olu kongeza lukuvumela ukuba ujonge ukukwazi ukujonga idatha ye-CPUID ukusuka kwinkqubo yeendwendwe ezilungiselelwe.

Ngaphezu koko, yaziswa inkxaso yolwandiso lwangoku kwi-Intel-based processors ISapphire Rapids microarchitecture:

  1. Kwiinkqubo zeendwendwe kwimodi ye-HVM kunye ne-PVH, inkxaso ye-PKS (uMphathi oPhambili woKhuselo) yadityaniswa, eyandisa amandla okukhusela iphepha lememori.
  2. Indlela ye-VM-Notify yaphunyezwa ukunqanda ukuvalwa ngokungxamisekileyo kwenkqubo xa kuthe kwakho iingxaki ngezitshixo ze-microarchitectural locks.

Olunye utshintsho ezibalaseleyo:

  • Ukuphunyezwa kokuqala kwamachweba e-RISC-V kunye ne-Power Architectures zahlanganiswa.
  • Iimeko-bume ezithile zaphunyezwa ukuvavanya i-RISC-V kunye namazibuko aMandla ngaphakathi kwe-GitLab CI eqhubekayo yokuhlanganisa inkqubo.
  • Ukuthintela ukuvaleka kwebhasi okubangelwa kukusetyenziswa ngendlela engachanekanga kwemiyalelo yeathom kwinkqubo yeendwendwe, ukhuseleko luphunyeziwe ngokwenza umyinge wesantya.
  • Umqhubi we-cpufreq ongeziwe osebenzisa i-HWP (i-Hardware P-States) indlela yokulawula ukusetyenziswa kwamandla kunye nokuphindaphinda kwe-Intel processors.
  • Ii-hypercalls ezimbini ezitsha zongeziweyo ukuseka ukubophelela kwe-vCPU yesimo sokusebenza kunye nemimandla yesikhashana kwiidilesi zendawo endaweni yenyani.
  • Inkxaso yokunyanzeliswa kwenkqubo yokusebenza ngokubanzi kwimowudi yexesha elisebenza ngokuzimeleyo
  • Kwi-RISC-V, uhlengahlengiso oluthile kunye nophuculo lwenziwe kwikhowudi ekhoyo. I-BUG/WARN macros, printk kunye ne-decode_cause () imisebenzi yethutyana iye yaziswa ukuprinta isizathu somgibe. Kukukhutshwa okuzayo, imephu yesazisi, ukuhlanganiswa okupheleleyo kweXen, kunye nokuphathwa komgibe kuya kwaziswa.

Okokugqibela, kufanelekile ukukhankanya ukuba ukuphuhliswa kolu guqulelo lwe-Xen 4.18 kuya kwandiswa kude kube nguMeyi 16, 2025, kunye nopapasho lolungiso lobuthathaka kude kube ngoNovemba 16, 2026.

Ukuba unomdla wokufunda ngakumbi malunga, unokubonisana iinkcukacha kwikhonkco elilandelayo.


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