[PATCH v2 0/6] KVM: arm64: VTCR_EL2 conversion to feature dependency framework

[Marc Zyngier <maz@kernel.org>]

This is a follow-up on my VTCR_EL2 sanitisation series, with extra
goodies, mostly as a consequence of Alexandru's patches and review.

* From [1]:

  - Added two patches fixing some FEAT_XNX issues: one dating back
    from the hVHE introduction, and the other related to the newer
    stuff in 6.19.

  - Expanded the scope of the RES1 handling in DECLARE_FEAT_MAP() to
    deal with FGTs, as we're about to get quality stuff thanks to
    GICv5.

  - Simplified the S2TGRANx detection slightly.

  - Collected RBs, with thanks

[1] https://lore.kernel.org/r/20251129144525.2609207-1-maz@kernel.org

Marc Zyngier (6):
  KVM: arm64: Fix EL2 S1 XN handling for hVHE setups
  arm64: Convert ID_AA64MMFR0_EL1.TGRAN{4,16,64}_2 to UnsignedEnum
  arm64: Convert VTCR_EL2 to sysreg infratructure
  KVM: arm64: Account for RES1 bits in DECLARE_FEAT_MAP() and co
  KVM: arm64: Convert VTCR_EL2 to config-driven sanitisation
  KVM: arm64: Honor UX/PX attributes for EL2 S1 mappings

 arch/arm64/include/asm/kvm_arm.h     | 52 ++++-----------
 arch/arm64/include/asm/kvm_host.h    |  1 +
 arch/arm64/include/asm/kvm_pgtable.h |  2 +
 arch/arm64/include/asm/sysreg.h      |  1 -
 arch/arm64/kvm/config.c              | 94 ++++++++++++++++++++++++----
 arch/arm64/kvm/emulate-nested.c      | 55 +++++++++-------
 arch/arm64/kvm/hyp/pgtable.c         | 32 +++++++---
 arch/arm64/kvm/nested.c              | 11 ++--
 arch/arm64/tools/sysreg              | 63 ++++++++++++++++++-
 9 files changed, 217 insertions(+), 94 deletions(-)

-- 
2.47.3