[PATCH v19 14/20] KVM: arm64: CCA: Add bare minimal S2 operations for Realm
Gavin Shan
gshan at redhat.com
Sun Sep 27 18:27:14 PDT 2026
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 at arm.com>
> ---
> arch/arm64/kvm/mmu.c | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
Reviewed-by: Gavin Shan <gshan at redhat.com>
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