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Marc Zyngier 9b7c3dd596 Merge branch kvm-arm64/idregs-6.12 into kvmarm/fixes
* kvm-arm64/idregs-6.12:
  : .
  : Make some fields of ID_AA64DFR0_EL1 and ID_AA64PFR1_EL1
  : writable from userspace, so that a VMM can influence the
  : set of guest-visible features.
  :
  : - for ID_AA64DFR0_EL1: DoubleLock, WRPs, PMUVer and DebugVer
  :   are writable (courtesy of Shameer Kolothum)
  :
  : - for ID_AA64PFR1_EL1: BT, SSBS, CVS2_frac are writable
  :   (courtesy of Shaoqin Huang)
  : .
  KVM: selftests: aarch64: Add writable test for ID_AA64PFR1_EL1
  KVM: arm64: Allow userspace to change ID_AA64PFR1_EL1
  KVM: arm64: Use kvm_has_feat() to check if FEAT_SSBS is advertised to the guest
  KVM: arm64: Disable fields that KVM doesn't know how to handle in ID_AA64PFR1_EL1
  KVM: arm64: Make the exposed feature bits in AA64DFR0_EL1 writable from userspace

Signed-off-by: Marc Zyngier <maz@kernel.org>
History 2024-10-08 10:40:04 +01:00
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README

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 reStructuredText 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.