bsa-acs : B_MEM_06 test name issue

[sunnywang-arm]

B_MEM_06 test name now is "Check Addressability for non-DMA dev".

However, the rule B_MEM_06 below is not to validate non-DMA devices.

• B_MEM_06 Non-secure devices that cannot directly address all of the Non-secure address space must be placed behind a stage 1 SMMU that is compatible with the Arm SMMUv2 or SMMUv3 specification, that has an output address size large enough to address all of the Non-secure address space.

Therefore, the test name might be a bit misleading. My understanding is that the test is not actually targeting non-DMA devices. Instead, it validates DMA-capable devices with limited addressability. In particular, it checks whether a device with a limited DMA address width (for example, a 32-bit DMA device) is placed behind an SMMU so that it can access the full Non-secure address space through translation.

We should change the test name to something like "Check 32-bit DMA device behind SMMU"

[chetan-rathore]

@sunnywang-arm,

Your understanding is partially correct, the test is checking both

• non DMA devices
• DMA 32 bit devices

I think the test desc can be updated to "Check NS non-64bit DMA devices are behind SMMU"

Let me know your thoughts