2.0.2
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║ 🌌 HYPERION KERNEL v2.0.2 — RELEASE NOTES ║
║ Linux 6.19.6 · Author: Soumalya Das · 2026 ║
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🔐 SECURITY
✅ SELinux full support — Fedora, RHEL, CentOS, Android-lineage
✅ TOMOYO pathname MAC — openSUSE, Debian compatibility
✅ AppArmor remains default — switch via security= cmdline
✅ RANDOMIZE_KSTACK_OFFSET — stack-layout exploit mitigation
✅ INIT_STACK_ALL_ZERO — uninitialised variable leak killer
✅ HARDENED_USERCOPY strict — object boundary enforcement
📡 WI-FI — Universal Chipset Coverage
✅ Qualcomm/Atheros ATH9K — 802.11n (AR9xxx, decade of laptops)
✅ Qualcomm/Atheros ATH10K — 802.11ac (QCA9xxx / WCN3990)
✅ Qualcomm/Atheros ATH11K — Wi-Fi 6 (QCN6122 / WCN6855)
✅ Qualcomm/Atheros ATH12K — Wi-Fi 7 (QCN9274 / WCN7850)
✅ Realtek RTW88 — RTL8822B/C, RTL8821C, RTL8723D (PCIe/USB)
✅ Realtek RTW89 — RTL8852A/B/C, RTL8851B (Wi-Fi 6/6E)
✅ MediaTek MT7925 — Wi-Fi 7 (2024+ laptops)
✅ MediaTek MT7921U/S — USB + SDIO variants
✅ Intel IWLWIFI — AX200 / AX210 / AX211 fully covered
✅ Broadcom BRCMSMAC — Apple/hybrid platform compatibility
⚡ THUNDERBOLT & USB4
✅ Thunderbolt 3/4 host controller — eGPU docks, TB docks
✅ Thunderbolt networking — 40 Gbps peer-to-peer link
✅ USB4 unified controller — USB4 hubs and NVMe tunneling
✅ USB4 networking — IP over USB4 cable
🔒 VPN & NETWORKING
✅ WireGuard — built-in, zero module-load race, ~10 Gbps on AES-NI
✅ L2TP / L2TPv3 / L2TP-ETH — enterprise and ISP VPN protocols
✅ BBR congestion control — default (gaming, streaming, low latency)
✅ CAKE qdisc — best-in-class bufferbloat elimination
✅ MPTCP — multi-path TCP for bonded interfaces
✅ NETFILTER CHECKSUM fix — VM DHCP/DNS silent drop bug resolved
📷 MEDIA & WEBCAM
✅ USB Video Class (UVC) — every USB webcam works out of the box
✅ V4L2 MEM2MEM — hardware video encode/decode (VA-API, QSV, VCE)
✅ HDMI CEC — AV receiver auto-power and remote passthrough
✅ DVB Core — TV tuner sticks and SDR dongles (RTL-SDR etc.)
✅ RC/IR core — remote controls, FLIRC, Windows MCE receivers
🔊 SOC AUDIO — Laptop Audio Fixed (2020–2026)
✅ Intel SOF — Ice Lake, Tiger Lake, Alder Lake, Meteor Lake
✅ Intel SKL/KBL SST — Skylake and Kaby Lake platforms
✅ AMD ACP3x / ACP6x / Pink Sardine — Ryzen laptop audio
✅ RT5682 / RT5682S codec — present in virtually every modern laptop
✅ CS35L41 — Lenovo, Dell, HP smart amplifier codec
✅ NAU8825 — Chromebook and ultrabook codec
🖊️ INPUT & TABLETS
✅ Wacom — full Intuos/Cintiq/Bamboo pressure + tilt + eraser
✅ UCLogic — XP-Pen, Huion, Gaomon, UGEE, Veikk (all models)
✅ HIDRAW — libfprint fingerprint readers, fwupd, OpenRGB, Piper
✅ Corsair, Roccat, Thrustmaster, Razer peripherals
🦷 BLUETOOTH
✅ BT_HCIUART — serial BT (most Intel/Qualcomm/MediaTek laptops)
✅ Intel BT UART driver — AX200, AX210, AX211 coex handled
✅ Qualcomm QCA UART — WCN685x and friends
✅ Broadcom BCM UART — Apple/laptop embedded BT
✅ BT_MSFTEXT — Xbox controller audio, Microsoft BT extensions
🖥️ VIRTUALIZATION
✅ KVM_SMM — OVMF/EDK2 UEFI guests now POST correctly
✅ KVM_HYPERV — Windows 10/11 VMs gain 20–40% perf (fewer exits)
✅ KVM_XEN — Xen-to-KVM workload migration
✅ KVM_MMIO — ACPI/PCI ROM emulation in VMs
✅ KVM_VFIO — MSI/MSI-X from VFIO devices reach guest correctly
✅ VFIO_PLATFORM — non-PCI device passthrough
✅ VFIO_VIRQFD — explicit IRQ fd for VFIO devices
✅ VFIO_NOIOMMU — VFIO without IOMMU for dev/test
✅ VSOCK_LOOPBACK — Waydroid clipboard + ADB + full-UI FIXED
✅ VHOST_VDPA — SR-IOV VFs as VirtIO (line-rate NIC passthrough)
✅ VDUSE — DPDK/SPDK as vDPA userspace block/net backend
✅ KVM_AMD_SEV_SNP — Secure Nested Paging (EPYC 3rd gen+)
✅ KVM_ASYNC_PF — vCPU parks on page fault instead of halting
🧠 IOMMU
✅ IOMMU_SVA — shared virtual addressing for GPU compute + VFIO
✅ INTEL_IOMMU_PERF_EVENTS — VT-d perf counters for profiling
⚡ PERFORMANCE
✅ sched_ext (SCX) — runtime BPF scheduler swap (scx_lavd, scx_bpfland)
✅ UCLAMP — games pin to fast cores, background tasks stay quiet
✅ NO_HZ_FULL + HZ=1000 — tickless CPUs + 1ms scheduler granularity
✅ PREEMPT_DYNAMIC — switch preemption model at boot
✅ MGLRU + LRU_GEN_WALKS_MMU — smarter page reclaim, less stutter
✅ PER_VMA_LOCK — reduced contention on multi-threaded workloads
✅ NUMA_AWARE_SPINLOCKS — less lock bouncing on Zen multi-CCX
✅ IRQ_FORCED_THREADING — scheduler owns all IRQ timing
✅ DAMON_RECLAIM — proactive cold-page eviction before OOM
✅ ZSWAP (ZSTD) + ZRAM — compressed RAM swap, silent OOM prevention
🔋 POWER MANAGEMENT
✅ ACPI_PLATFORM_PROFILE — power-profiles-daemon (GNOME/KDE slider)
✅ AMD_PMC — Ryzen s2idle (modern standby) — battery now lasts
✅ AMD_HSMP — per-CCX power limits and fabric bandwidth telemetry
✅ AMD P-State mode 3 (Active EPP) — best Zen3/4 boost behaviour
✅ Intel P-State + HWP — hardware-managed boost, lower SW overhead
✅ CPU_IDLE_GOV_TEO — best C-state selection, ~15% less wake latency
✅ THERMAL_PRESSURE — thermal feedback into EAS scheduler
💾 STORAGE
✅ NVMe over Fibre Channel — enterprise SAN support
✅ NVMe over RDMA — HPC/cloud zero-copy storage
✅ SCSI_MQ_DEFAULT — multi-queue SCSI, near-linear I/O scaling
✅ DM_USER — Android Virtual A/B OTA snapshot support
✅ DM_WRITECACHE — transparent SSD write-back cache over HDD
✅ DM_INTEGRITY — per-block HMAC against silent data corruption
✅ BFQ (default) + Kyber + Deadline — right scheduler for every disk
🗂️ FILESYSTEMS (all built-in)
ext4 · XFS · Btrfs · F2FS · NTFS3 · exFAT · vFAT
squashfs (ZSTD) · EROFS (on-demand) · overlay · FUSE
NFS v2/3/4/4.1/4.2 · CIFS/SMB · AFS · 9P/VirtioFS
🐧 DISTRO COMPATIBILITY
✅ Arch Linux — default target, pacman/AUR ready
✅ Ubuntu/Debian — AppArmor default, apt + DKMS safe
✅ Fedora/RHEL — SELinux compiled in, dnf compatible
✅ openSUSE — TOMOYO + AppArmor, zypper compatible
✅ Any distro — IKHEADERS=y, IKCONFIG=y, MODVERSIONS=y
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📦 Total config entries : 1716
🧱 Built-in (=y) : ~1680 (zero module-load latency)
🔌 Loadable infra (=m) : retained for DKMS (NVIDIA, v4l2loopback)
📏 bzImage target : <15 MB compressed (ZSTD)
🛠️ Build command : make -j$(nproc) LOCALVERSION="-Hyperion-2.0.2"
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