--- title: Xen 4.22 Released With AMD Zen 5 BLT Support, Improved... description: Xen 4.22 has been released as the latest feature update to the open-source hypervisor. Key additions include support for AMD Zen 5's Bus Lock Threshold (BLT),... canonical: https://daily.dev/posts/xen-4-22-released-with-amd-zen-5-blt-support-improved-risc-v-virtualization-olkncamwp twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Xen 4.22 Released With AMD Zen 5 BLT Support, Improved RISC-V Virtualization | daily.dev og:description: Xen 4.22 has been released as the latest feature update to the open-source hypervisor. Key additions include support for AMD Zen 5's Bus Lock Threshold (BLT),... og:url: https://daily.dev/posts/xen-4-22-released-with-amd-zen-5-blt-support-improved-risc-v-virtualization-olkncamwp og:image: https://api.daily.dev/og/posts/oLkNCamwp.png og:image:alt: Xen 4.22 Released With AMD Zen 5 BLT Support, Improved RISC-V Virtualization og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Xen 4.22 Released With AMD Zen 5 BLT Support, Improved RISC-V Virtualization **[Phoronix](https://daily.dev/sources/phoronix)** · 1 min read · 0 upvotes · 0 comments ## Summary Xen 4.22 has been released as the latest feature update to the open-source hypervisor. Key additions include support for AMD Zen 5's Bus Lock Threshold (BLT), which limits performance degradation from improper atomic instructions. RISC-V virtualization support continues to mature toward full guest virtualization, ARM gains guest suspend/resume power management, and cloud environments benefit from improved guest resource over-consumption controls. Automotive and embedded use-cases also receive targeted enhancements. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Xen 4.21 Released With AMD CPPC & Resizable BAR Support](https://daily.dev/posts/xen-4-21-released-with-amd-cppc-resizable-bar-support-cz0cgcpeu) · Phoronix · 0 upvotes · 0 comments - [Ford straps in as Xen Project drives toward automotive use](https://daily.dev/posts/ford-straps-in-as-xen-project-drives-toward-automotive-use-uxzbfhbom) · The Register · 1 upvotes · 0 comments - [KVM Virtualization Sees Several Exciting Improvements For AMD & Intel In Linux 6.18](https://daily.dev/posts/kvm-virtualization-sees-several-exciting-improvements-for-amd-intel-in-linux-6-18-qjgv2suut) · Phoronix · 0 upvotes · 0 comments - [Linux 7.1 To Expose AMD Zen 6's AVX-512 BMM For Guest VMs](https://daily.dev/posts/linux-7-1-to-expose-amd-zen-6-s-avx-512-bmm-for-guest-vms-paxnquppj) · Phoronix · 0 upvotes · 0 comments --- Tags: [#infrastructure](https://daily.dev/tags/infrastructure) [View this post on daily.dev](https://daily.dev/posts/xen-4-22-released-with-amd-zen-5-blt-support-improved-risc-v-virtualization-olkncamwp) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Xen 4.22 Released With AMD Zen 5 BLT Support, Improved RISC-V Virtualization","url":"https://daily.dev/posts/xen-4-22-released-with-amd-zen-5-blt-support-improved-risc-v-virtualization-olkncamwp","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/xen-4-22-released-with-amd-zen-5-blt-support-improved-risc-v-virtualization-olkncamwp"},"datePublished":"2026-07-30T13:51:10.615Z","dateModified":"2026-07-30T14:14:35.211Z","description":"Xen 4.22 has been released as the latest feature update to the open-source hypervisor. 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