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* kvm-arm64/fgt-rework: (30 commits) : . : Fine Grain Trapping update, courtesy of Fuad Tabba. : : From the cover letter: : : "This patch series has fixes, updates, and code for validating : fine grain trap register masks, as well as some fixes to feature : trapping in pKVM. : : New fine grain trap (FGT) bits have been defined in the latest : Arm Architecture System Registers xml specification (DDI0601 and : DDI0602 2023-09) [1], so the code is updated to reflect them. : Moreover, some of the already-defined masks overlap with RES0, : which this series fixes. : : It also adds FGT register masks that weren't defined earlier, : handling of HAFGRTR_EL2 in nested virt, as well as build time : validation that the bits of the various masks are all accounted : for and without overlap." : : This branch also drags the arm64/for-next/sysregs branch, : which is a dependency on this work. : . KVM: arm64: Trap external trace for protected VMs KVM: arm64: Mark PAuth as a restricted feature for protected VMs KVM: arm64: Fix which features are marked as allowed for protected VMs KVM: arm64: Macros for setting/clearing FGT bits KVM: arm64: Define FGT nMASK bits relative to other fields KVM: arm64: Use generated FGT RES0 bits instead of specifying them KVM: arm64: Add build validation for FGT trap mask values KVM: arm64: Update and fix FGT register masks KVM: arm64: Handle HAFGRTR_EL2 trapping in nested virt KVM: arm64: Add bit masks for HAFGRTR_EL2 KVM: arm64: Add missing HFGITR_EL2 FGT entries to nested virt KVM: arm64: Add missing HFGxTR_EL2 FGT entries to nested virt KVM: arm64: Explicitly trap unsupported HFGxTR_EL2 features arm64/sysreg: Add missing system instruction definitions for FGT arm64/sysreg: Add missing system register definitions for FGT arm64/sysreg: Add missing ExtTrcBuff field definition to ID_AA64DFR0_EL1 arm64/sysreg: Add missing Pauth_LR field definitions to ID_AA64ISAR1_EL1 arm64/sysreg: Add new system registers for GCS arm64/sysreg: Add definition for FPMR arm64/sysreg: Update HCRX_EL2 definition for DDI0601 2023-09 ... Signed-off-by: Marc Zyngier <maz@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.