A Canonical engineer has outlined Intel Xeon CPU feature support status for Ubuntu 26.04 LTS. Key highlights: Intel SGX has kernel support since Ubuntu 22.04 but user-space packages are still missing from the Ubuntu archive; Intel DSA 2.0 and IAA 2.0 have kernel support but QPL user-space library isn't packaged yet; CXL 2.0 is supported via HWE kernel; Intel TDX moves from preview (25.10) to full support in 26.04; QAT Gen 4/5 is already supported in 24.04 LTS. For features lacking user-space packages, users must rely on Intel's own APT repository or compile from source.
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