Re: [PATCH v19 14/20] KVM: arm64: CCA: Add bare minimal S2 operations for Realm

[Gavin Shan]

On 9/21/26 7:28 AM, Suzuki K Poulose wrote:
> Add bare minimal MMU operation hooks for Realms. The mem_abort handling
> is chosen as the default KVM variant. However this cannot be reached for
> Realms yet and we would need real RMI command support to make it fully
> functional.
>
> RMM takes care of the TLB flushing as required, when the Stage2 is
> modified. So host doesn't need to do anything explicitly. RMM doesn't
> support access flags for the stage2, even for the shared IPA.
>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
> ---
>   arch/arm64/kvm/mmu.c | 24 ++++++++++++++++++++++++
>   1 file changed, 24 insertions(+)

Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>