[PATCH v6 0/9] KVM: arm64: Fixes for guest CPU feature trapping and enabling

[Fuad Tabba]

Hi,

This series contains several fixes for guest feature trapping and
enabling in pKVM, as well as a bit of tidying up.

Changes from v6 [1]:
- Fixes to the patch that tracks KVM IOCTLs and their associated KVM
  caps. Move static header data and function definitions to arm.c.
- Introduce a capability KVM_CAP_ARM_BASIC instead of KVM_CAP_CORE,
  since it is ARM-specific and that it only checks basic ARM ioctls.
- Tidying up code and commit messages.
- Based on Linux 6.18

Cheers,
/fuad

[1] https://lore.kernel.org/all/20251118103807.707500-1-tabba@google.com/

Fuad Tabba (9):
  KVM: arm64: Fix Trace Buffer trapping for protected VMs
  KVM: arm64: Fix Trace Buffer trap polarity for protected VMs
  KVM: arm64: Fix MTE flag initialization for protected VMs
  KVM: arm64: Introduce helper to calculate fault IPA offset
  KVM: arm64: Include VM type when checking VM capabilities in pKVM
  KVM: arm64: Do not allow KVM_CAP_ARM_MTE for any guest in pKVM
  KVM: arm64: Track KVM IOCTLs and their associated KVM caps
  KVM: arm64: Check whether a VM IOCTL is allowed in pKVM
  KVM: arm64: Prevent host from managing timer offsets for protected VMs

 arch/arm64/include/asm/kvm_arm.h         |  2 +
 arch/arm64/include/asm/kvm_host.h        |  2 +
 arch/arm64/include/asm/kvm_pkvm.h        | 33 ++++++++++++++--
 arch/arm64/kvm/arch_timer.c              | 18 ++++++---
 arch/arm64/kvm/arm.c                     | 49 +++++++++++++++++++++++-
 arch/arm64/kvm/hyp/nvhe/pkvm.c           | 18 ++++-----
 arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c |  2 +-
 arch/arm64/kvm/inject_fault.c            |  2 +-
 arch/arm64/kvm/mmu.c                     |  4 +-
 include/uapi/linux/kvm.h                 |  1 +
 10 files changed, 107 insertions(+), 24 deletions(-)


base-commit: 7d0a66e4bb9081d75c82ec4957c50034cb0ea449
-- 
2.52.0.223.gf5cc29aaa4-goog