Xen babban mai ɗaukar hoto ne wanda ke ba da amintaccen keɓewa, sarrafa albarkatu, ingancin garantin sabis, da ƙaura na inji.
Bayan shekara guda ta ci gaba, ƙaddamar da sabon sigar free hypervisor Ranar 4.17, nau'in wanda ƙirƙirar sabuntawa don reshen Xen 4.17 zai kasance har zuwa Yuni 12, 2024 da sakin gyare-gyaren rauni har zuwa Disamba 12, 2025.
Ya kamata a ambata cewa kamfanoni irin su Amazon, Arm, Bitdefender, Citrix, EPAM Systems da Xilinx (AMD) sun ba da gudummawa ga haɓaka sabon sigar.
Xen 4.17 Babban Sabbin Abubuwa
A cikin wannan sabon sigar da aka gabatar, an yi nuni da cewa ikon ayyana tsayayyen tsarin Xen don tsarin ARM wanda ke ɓoye a gaba duk albarkatun da ake buƙata don fara tsarin baƙo. duk albarkatunkamar ƙwaƙwalwar ajiyar da aka raba, tashoshin sanarwar taron, da sararin samaniyar hypervisor, an riga an kasaftawa a farawa hypervisor maimakon a ware shi a hankali, wanda ke kawar da yiwuwar gazawar saboda rashin kayan aiki.
Ga tsarin da aka saka bisa tsarin gine-ginen ARM, an aiwatar da shi goyan bayan gwaji (samfotin fasaha) Don ƙwarewar I/O ta amfani da ka'idojin VirtIO, ana amfani da virtIO-mmio don sadarwa tare da na'urar I/O mai kama-da-wane, wanda ya ba mu damar tabbatar da dacewa tare da na'urori masu yawa na VirtIO. Hakanan zamu iya nemo dacewa da aka aiwatar don layin gaba na Linux, tare da libxl/xl, yanayin dom0less da bayan fage mai amfani.
Wani daga cikin canje-canjen da yayi fice shine ingantaccen tallafi don yanayin dom0less, cewa yana ba da damar guje wa aiwatar da yanayin dom0 lokacin fara injunan kama-da-wane a farkon matakin taya uwar garken.
Da ikon ayyana ƙungiyoyin CPU (CPUPOOL) a matakin taya (ta hanyar itacen na'urar), wanda yana ba da damar amfani da ƙungiyoyi a cikin daidaitawa ba tare da dom0 ba, misali, don haɗa nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan CPU a cikin tsarin ARM dangane da manyan gine-gine. LITTLE, wanda ke haɗuwa da ƙarfi, amma ma'aunin yunwar ƙarfi, da ƙarancin amfani, amma mafi ƙarancin kuzari. Bugu da ƙari, dom0less yana ba da ikon ɗaure gaban gaba / baya na paravirtualization ga baƙi, yana ba ku damar taya baƙi tare da na'urorin da suka dace.
A cikin tsarin ARM, Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwaƙwalwa (P2M, na zahiri zuwa na'ura) yanzu an kasaftawa daga wurin da aka ƙirƙira ƙwaƙwalwar ajiya lokacin da aka ƙirƙiri yanki, yana ba da damar mafi kyawun keɓancewa tsakanin baƙi lokacin da gazawar da ke da alaƙa da ƙwaƙwalwar ajiya ta faru.
A cikin tsarin x86, IOMMU ana tallafawa (superpage) don kowane nau'in tsarin baƙo, yana ba da damar haɓaka aiki yayin tura na'urori, PCI, ƙari ƙarin tallafi ga runduna tare da har zuwa 12TB na RAM. A matakin taya, ana aiwatar da ikon saita sigogi na cpuid don dom0. An gabatar da sigogin VIRT_SSBD da MSR_SPEC_CTRL don sarrafa matakin kariyar hypervisor daga harin CPU akan tsarin baƙi.
Na wasu canje-canje cewa tsaya a waje:
- Ƙara kariya daga raunin Specter-BHB a cikin tsarin ƙirar microarchitecture don tsarin ARM.
- A kan tsarin ARM, ana ba da ikon gudanar da Zephyr OS a cikin tushen tushen Dom0.
An ba da damar yin taro daban-daban na hypervisor (a wajen itacen).
Na dabam, ana haɓaka sufuri na VirtIO-Grant, wanda ya bambanta da VirtIO-MMIO a cikin babban matakin tsaro da ikon tafiyar da masu sarrafawa a cikin keɓantaccen yanki don masu sarrafawa.
Maimakon yin taswirar ƙwaƙwalwar ajiya kai tsaye, VirtIO-Grant yana amfani da fassarar adiresoshin jiki na baƙo zuwa hanyoyin haɗin haya, yana ba da damar yin amfani da wuraren ƙwaƙwalwar ajiya da aka riga aka yi yarjejeniya don musayar bayanai tsakanin baƙo da bayan VirtIO. yi taswirar ƙwaƙwalwar ajiya. An riga an aiwatar da tallafin VirtIO-Grant a cikin Linux kernel, amma har yanzu ba a haɗa shi cikin QEMU, virtio-vhost da kayan aiki (libxl/xl) baya ba.
Ƙimar Hyperlaunch ta ci gaba da haɓaka don samar da kayan aiki masu sassauƙa don keɓance ƙaddamar da na'urori masu mahimmanci a lokacin taya tsarin. A halin yanzu, saitin farko na faci yana shirye, yana ba da damar ayyana yankunan PV da canja wurin hotunan su zuwa hypervisor akan lodawa. ka
Finalmente idan kuna sha'awar ƙarin sani game da shi, zaka iya tuntuba cikakkun bayanai a cikin mahaɗin mai zuwa.