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

[Suzuki K Poulose <suzuki.poulose@arm.com>]

Hi Kohei

On 10/11/2026 09:24, Kohei Enju wrote:
> 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@arm.com/
>> [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.

Tip of both the repositories should work (tf-a and tf-rmm).

Cheers
Suzuki


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