Re: [PATCH 00/11] KVM: arm64: CCA: Prepare Realm memory management

[Kohei Enju]

On 11/02 14:12, Steven Price wrote:
> This series adds the memory plumbing for CCA building on the basic
> plumbing[1] that has just been merged.
> 
> These patches add the internal realm VM state and RMM feature checks,
> prepare realm stage-2 setup and teardown, and provide RTT mapping and
> invalidation helpers. Realm memslots are now contrained to the lower
> half of the IPA space, because faults treat the protected and shared
> halves as aliasing. The final patch then connects these helpers to the
> KVM stage-2 MMU operations.
> 
> There's also an integration branch[2] that builds on this series and
> includes the realm descriptor creation, REC entry/exit, activation and
> the new uAPI. This series by itself is also available as a git
> branch[3]. However the new code isn't generally active without the full
> integration branch.
> 
> [1] https://lore.kernel.org/all/20261007073537.2454351-1-suzuki.poulose@xxxxxxx/
> [2] https://gitlab.arm.com/linux-arm/linux-cca
>     branch: cca-host-mm/v1/integration

Hi Steve, thanks for your work on CCA upstreaming.

For testing purposes, could you clarify which TF-RMM revision (or commit
hash) you tested with? Although this MM series itself doesn't seem to be
particularly sensitive to changes in TF-RMM, testing the integration
branch could be affected by subtle changes in the RMM.

It would also be useful to know the TF-A revision, if possible.

Thanks,
Kohei