Merge branch kvmarm-fixes-6.19-1 into kvm-arm64/vtcr

KVM/arm64 fixes for 6.19

 - Ensure early return semantics are preserved for pKVM fault handlers

 - Fix case where the kernel runs with the guest's PAN value when
   CONFIG_ARM64_PAN is not set

 - Make stage-1 walks to set the access flag respect the access
   permission of the underlying stage-2, when enabled

 - Propagate computed FGT values to the pKVM view of the vCPU at
   vcpu_load()

 - Correctly program PXN and UXN privilege bits for hVHE's stage-1 page
   tables

 - Check that the VM is actually using VGICv3 before accessing the GICv3
   CPU interface

 - Delete some unused code

# -----BEGIN PGP SIGNATURE-----
#
# iI0EABYKADUWIQSNXHjWXuzMZutrKNKivnWIJHzdFgUCaWiyJBccb2xpdmVyLnVw
# dG9uQGxpbnV4LmRldgAKCRCivnWIJHzdFqVhAQDM4Lbrq0F80X+YzvO7oxWioOy4
# JiTATSii9Lit8KY6fgEAvLD4qaggLdF3+WY+V37YmTj3UDgI31ClBr+xSvSengA=
# =XaL0
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 15 Jan 2026 09:23:48 GMT
# gpg:                using EDDSA key 8D5C78D65EECCC66EB6B28D2A2BE7588247CDD16
# gpg:                issuer "oliver.upton@linux.dev"
# gpg: Can't check signature: No public key

* tag 'kvmarm-fixes-6.19-1':
  KVM: arm64: Invert KVM_PGTABLE_WALK_HANDLE_FAULT to fix pKVM walkers
  KVM: arm64: Don't blindly set set PSTATE.PAN on guest exit
  KVM: arm64: nv: Respect stage-2 write permssion when setting stage-1 AF
  KVM: arm64: Remove unused vcpu_{clear,set}_wfx_traps()
  KVM: arm64: Remove unused parameter in synchronize_vcpu_pstate()
  KVM: arm64: Remove extra argument for __pvkm_host_{share,unshare}_hyp()
  KVM: arm64: Inject UNDEF for a register trap without accessor
  KVM: arm64: Copy FGT traps to unprotected pKVM VCPU on VCPU load
  KVM: arm64: Fix EL2 S1 XN handling for hVHE setups
  KVM: arm64: gic: Check for vGICv3 when clearing TWI

Signed-off-by: Marc Zyngier <maz@kernel.org>