Oliver Upton 13f64f6d21 Merge branch 'kvm-arm64/nv-idregs' into kvmarm/next
* kvm-arm64/nv-idregs:
  : Changes to exposure of NV features, courtesy of Marc Zyngier
  :
  : Apply NV-specific feature restrictions at reset rather than at the point
  : of KVM_RUN. This makes the true feature set visible to userspace, a
  : necessary step towards save/restore support or NV VMs.
  :
  : Add an additional vCPU feature flag for selecting the E2H0 flavor of NV,
  : such that the VHE-ness of the VM can be applied to the feature set.
  KVM: arm64: selftests: Test that TGRAN*_2 fields are writable
  KVM: arm64: Allow userspace to write ID_AA64MMFR0_EL1.TGRAN*_2
  KVM: arm64: Advertise FEAT_ECV when possible
  KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable
  KVM: arm64: Allow userspace to limit NV support to nVHE
  KVM: arm64: Move NV-specific capping to idreg sanitisation
  KVM: arm64: Enforce NV limits on a per-idregs basis
  KVM: arm64: Make ID_REG_LIMIT_FIELD_ENUM() more widely available
  KVM: arm64: Consolidate idreg callbacks
  KVM: arm64: Advertise NV2 in the boot messages
  KVM: arm64: Mark HCR.EL2.{NV*,AT} RES0 when ID_AA64MMFR4_EL1.NV_frac is 0
  KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero
  KVM: arm64: Hide ID_AA64MMFR2_EL1.NV from guest and userspace
  arm64: cpufeature: Handle NV_frac as a synonym of NV2

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-03-19 14:52:26 -07:00
2024-09-01 20:43:24 -07:00
2025-02-04 11:27:45 -05:00
2022-09-28 09:02:20 +02:00
2025-03-09 13:45:25 -10:00
2024-03-18 03:36:32 -06:00

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.
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