[PATCH v2 0/4] KVM: arm64: Handle unsupported guest translation granule sizes

[Wei-Lin Chang]

Hi,

This is v2 of fixing the granule size selection for software stage-1
and stage-2 walks. Thanks to Marc for the feedback on v1 ([1]).

* Changes from v1:

  - Take the entire (v)tcr value for TGx decode helpers.

  - Rename vtcr_to_walk_info() to setup_s2_walk() as preparation, also
    pass vcpu as the argument instead of kvm.

  - Use TCR_* instead of TCR_EL1_* definitions.

  - Return unsigned int instead of u64 when returning a granule shift.

  - Split unit changes in get_guest_mapping_ttl() and
    compute_tlb_inval_range() into its own patch.

Thanks!

[1]: https://lore.kernel.org/kvmarm/20260406164618.3312473-1-weilin.chang@arm.com/

Wei-Lin Chang (4):
  KVM: arm64: nv: Rename vtcr_to_walk_info() to setup_s2_walk()
  KVM: arm64: Factor out TG0/1 decoding of VTCR and TCR
  KVM: arm64: nv: Use literal granule size in TLBI range calculation
  KVM: arm64: Fallback to a supported value for unsupported guest TGx

 arch/arm64/kvm/at.c     | 125 ++++++++++++++++++++++++++--------
 arch/arm64/kvm/nested.c | 144 +++++++++++++++++++++++++++-------------
 2 files changed, 196 insertions(+), 73 deletions(-)

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2.43.0