On 8/13/2026 9:25 AM, Tao Tang wrote: > To prevent aliasing between translations controlled through the Secure and > Non-secure programming interfaces, the IOTLB lookup key must incorporate > SEC_SID. > > This commit: > - expands SMMUIOTLBKey with SEC_SID field for cache key differentiation > - extends SMMUIOTLBPageInvInfo with SEC_SID for invalidation filtering > - updates all IOTLB invalidation helpers (smmu_iotlb_inv_iova, > smmu_iotlb_inv_ipa, smmu_iotlb_inv_asid_vmid, smmu_iotlb_inv_vmid, > smmu_iotlb_inv_vmid_s1) to accept and filter by SEC_SID > - plumbs SEC_SID through smmuv3_range_inval for TLB invalidation > - enhances trace events to include SEC_SID for better debugging > > This ensures that IOTLB entries decoded through the Secure and Non-secure > programming interfaces are distinct, preventing cache aliasing across > SEC_SID namespaces. > > Signed-off-by: Tao Tang <[email protected]> > --- > hw/arm/smmu-common.c | 110 +++++++++++++++++++++++------------ > hw/arm/smmu-internal.h | 2 + > hw/arm/smmuv3.c | 47 ++++++++++----- > hw/arm/trace-events | 20 +++---- > include/hw/arm/smmu-common.h | 32 +++++++--- > 5 files changed, 140 insertions(+), 71 deletions(-) >
Reviewed-by: Pierrick Bouvier <[email protected]>
