Re: [RFC v5 08/28] hw/arm/smmu-common: Key configuration cache on SMMUDevice and SEC_SID

On Fri, Aug 14, 2026 at 12:24:44AM +0800, Tao Tang wrote:
> Adapt the configuration cache to distinguish entries decoded through
> different SEC_SID-selected programming interfaces by introducing a
> composite SMMUConfigKey. The key combines SMMUDevice with SEC_SID,
> preventing Secure and Non-secure configuration entries from aliasing in
> the cache and leaving the key extensible for a future Realm SEC_SID
> namespace.
> 
> The cache lookup, insertion, and invalidation mechanisms are updated to
> use this new keying infrastructure.
> 
> Signed-off-by: Tao Tang <[email protected]>
> Reviewed-by: Eric Auger <[email protected]>
> Reviewed-by: Pierrick Bouvier <[email protected]>
> Link: https://lore.kernel.org/qemu-devel/[email protected]/
> ---
>  hw/arm/smmu-common.c         | 45 ++++++++++++++++++++++++++++++++++--
>  hw/arm/smmuv3.c              | 12 ++++++----
>  include/hw/arm/smmu-common.h |  7 ++++++
>  3 files changed, 57 insertions(+), 7 deletions(-)
> 

Reviewed-by: Jim MacArthur <[email protected]>