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* Make kexec and TDX finally place nice together * Put TDX error codes into a single header -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEV76QKkVc4xCGURexaDWVMHDJkrAFAmowVgUACgkQaDWVMHDJ krDwsw/9FKXndYdeSc7P8sJwjSlc9U4PFy/6rdUfnYCP1c2BTeVqNxZvCz+T9E4V Ld4UjjTLCbEq1uQ2UdYugpLnSKSNzf6MEp06Tsq2cRlEcPQBLGaACo+7dnBrUf6g zVUY0lPh1Jlxa+FBzMLf/H1qyUGl/Lv8msmgrC9fHHwQgsPYMgKUU6t72ScRG6FA kUk0crzI1DlSpFFVbXuRIpZSmLFPgyx5TNkteGJrP6q3iR6zYuc30MQsV2GalFrv qrn4cz3EmW0vousqpg7EA6J7okTUem/iswbxbQnpR4AMdJ7NwkKfa/OvHa6UB9UL Nb5gE7lxplKOlJKfeGjrL6ABazpwsk0J4oS9r2GoWDfs30ji3TX5ixVvJ1KCFAFZ dEkS1SazNjAWuDWuptVbu3+4DV34XSUg+kvcCXNTlOHz5KVg5ASzjF0QFvXexjCD BhcIqJ3OI8VtL4AI+HXg+GTpHOUYtGct/Y+5gB16VvoSuX9vNOPBYx2M9Q4Nhb/C U9eM7wqaS6lxX4UGId0ZgrNwHROreTEeGBScn1q1Rm7B6qJgeYo7wrzuKXCyRgcb /evbcZ1DWJTXEORsJobzNiXHQWBtAEs4rLycOKAGx8//kD7vEmy2itslPlEaSgFq jvoAHRNpiE3VW/hItB8WFTgWxiKaIz624gNrMjI2RYI/JSNhKVo= =Y3yy -----END PGP SIGNATURE----- Merge tag 'x86_tdx_for_7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip Pull x86 TDX updates from Dave Hansen: "There are a few cleanups, and some changes that should allow TDX and kexec to coexist nicely. The biggest change, however, is support for updating the TDX module after boot, just like CPU microcode. TDX users really want this because it lets them do security updates without tearing things down and rebooting. - Add TDX module update support - Make kexec and TDX finally place nice together - Put TDX error codes into a single header" * tag 'x86_tdx_for_7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (30 commits) x86/virt/tdx: Document TDX module update x86/virt/tdx: Enable TDX module runtime updates x86/virt/tdx: Refresh TDX module version after update coco/tdx-host: Lock out module updates when reading version x86/virt/seamldr: Add module update locking x86/virt/tdx: Restore TDX module state x86/virt/seamldr: Initialize the newly-installed TDX module x86/virt/seamldr: Install a new TDX module x86/virt/tdx: Reset software states during TDX module shutdown x86/virt/seamldr: Shut down the current TDX module x86/virt/seamldr: Abort updates after a failed step x86/virt/seamldr: Introduce skeleton for TDX module updates x86/virt/seamldr: Allocate and populate a module update request coco/tdx-host: Implement firmware upload sysfs ABI for TDX module updates coco/tdx-host: Don't expose P-SEAMLDR information on CPUs with erratum coco/tdx-host: Expose P-SEAMLDR information via sysfs x86/virt/seamldr: Add a helper to retrieve P-SEAMLDR information x86/virt/seamldr: Introduce a wrapper for P-SEAMLDR SEAMCALLs coco/tdx-host: Expose TDX module version coco/tdx-host: Introduce a "tdx_host" device ... |
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Linux kernel ============ The Linux kernel is the core of any Linux operating system. It manages hardware, system resources, and provides the fundamental services for all other software. Quick Start ----------- * Report a bug: See Documentation/admin-guide/reporting-issues.rst * Get the latest kernel: https://kernel.org * Build the kernel: See Documentation/admin-guide/quickly-build-trimmed-linux.rst * Join the community: https://lore.kernel.org/ Essential Documentation ----------------------- All users should be familiar with: * Building requirements: Documentation/process/changes.rst * Code of Conduct: Documentation/process/code-of-conduct.rst * License: See COPYING Documentation can be built with make htmldocs or viewed online at: https://www.kernel.org/doc/html/latest/ Who Are You? ============ Find your role below: * New Kernel Developer - Getting started with kernel development * Academic Researcher - Studying kernel internals and architecture * Security Expert - Hardening and vulnerability analysis * Backport/Maintenance Engineer - Maintaining stable kernels * System Administrator - Configuring and troubleshooting * Maintainer - Leading subsystems and reviewing patches * Hardware Vendor - Writing drivers for new hardware * Distribution Maintainer - Packaging kernels for distros * AI Coding Assistant - LLMs and AI-powered development tools For Specific Users ================== New Kernel Developer -------------------- Welcome! Start your kernel development journey here: * Getting Started: Documentation/process/development-process.rst * Your First Patch: Documentation/process/submitting-patches.rst * Coding Style: Documentation/process/coding-style.rst * Build System: Documentation/kbuild/index.rst * Development Tools: Documentation/dev-tools/index.rst * Kernel Hacking Guide: Documentation/kernel-hacking/hacking.rst * Core APIs: Documentation/core-api/index.rst Academic Researcher ------------------- Explore the kernel's architecture and internals: * Researcher Guidelines: Documentation/process/researcher-guidelines.rst * Memory Management: Documentation/mm/index.rst * Scheduler: Documentation/scheduler/index.rst * Networking Stack: Documentation/networking/index.rst * Filesystems: Documentation/filesystems/index.rst * RCU (Read-Copy Update): Documentation/RCU/index.rst * Locking Primitives: Documentation/locking/index.rst * Power Management: Documentation/power/index.rst Security Expert --------------- Security documentation and hardening guides: * Security Documentation: Documentation/security/index.rst * LSM Development: Documentation/security/lsm-development.rst * Self Protection: Documentation/security/self-protection.rst * Reporting Vulnerabilities: Documentation/process/security-bugs.rst * CVE Procedures: Documentation/process/cve.rst * Embargoed Hardware Issues: Documentation/process/embargoed-hardware-issues.rst * Security Features: Documentation/userspace-api/seccomp_filter.rst Backport/Maintenance Engineer ----------------------------- Maintain and stabilize kernel versions: * Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst * Backporting Guide: Documentation/process/backporting.rst * Applying Patches: Documentation/process/applying-patches.rst * Subsystem Profile: Documentation/maintainer/maintainer-entry-profile.rst * Git for Maintainers: Documentation/maintainer/configure-git.rst System Administrator -------------------- Configure, tune, and troubleshoot Linux systems: * Admin Guide: Documentation/admin-guide/index.rst * Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst * Sysctl Tuning: Documentation/admin-guide/sysctl/index.rst * Tracing/Debugging: Documentation/trace/index.rst * Performance Security: Documentation/admin-guide/perf-security.rst * Hardware Monitoring: Documentation/hwmon/index.rst Maintainer ---------- Lead kernel subsystems and manage contributions: * Maintainer Handbook: Documentation/maintainer/index.rst * Pull Requests: Documentation/maintainer/pull-requests.rst * Managing Patches: Documentation/maintainer/modifying-patches.rst * Rebasing and Merging: Documentation/maintainer/rebasing-and-merging.rst * Development Process: Documentation/process/maintainer-handbooks.rst * Maintainer Entry Profile: Documentation/maintainer/maintainer-entry-profile.rst * Git Configuration: Documentation/maintainer/configure-git.rst Hardware Vendor --------------- Write drivers and support new hardware: * Driver API Guide: Documentation/driver-api/index.rst * Driver Model: Documentation/driver-api/driver-model/driver.rst * Device Drivers: Documentation/driver-api/infrastructure.rst * Bus Types: Documentation/driver-api/driver-model/bus.rst * Device Tree Bindings: Documentation/devicetree/bindings/ * Power Management: Documentation/driver-api/pm/index.rst * DMA API: Documentation/core-api/dma-api.rst Distribution Maintainer ----------------------- Package and distribute the kernel: * Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst * ABI Documentation: Documentation/ABI/README * Kernel Configuration: Documentation/kbuild/kconfig.rst * Module Signing: Documentation/admin-guide/module-signing.rst * Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst * Tainted Kernels: Documentation/admin-guide/tainted-kernels.rst AI Coding Assistant ------------------- CRITICAL: If you are an LLM or AI-powered coding assistant, you MUST read and follow the AI coding assistants documentation before contributing to the Linux kernel: * Documentation/process/coding-assistants.rst This documentation contains essential requirements about licensing, attribution, and the Developer Certificate of Origin that all AI tools must comply with. Communication and Support ========================= * Mailing Lists: https://lore.kernel.org/ * IRC: #kernelnewbies on irc.oftc.net * Bugzilla: https://bugzilla.kernel.org/ * MAINTAINERS file: Lists subsystem maintainers and mailing lists * Email Clients: Documentation/process/email-clients.rst