Hi Wang, The Architecture specifications for Realm Device Assignment can be found in this page : https://developer.arm.com/documentation/den0125/0300/Device-Assignment--DA--... The released versions of FVP does not have support for DA yet. There are software plans for support in TF-A and RMM as mentioned in the roadmap (https://github.com/TrustedFirmware-A/trusted-firmware-a/wiki/TF%E2%80%90A-Ro...) but we are not yet ready to discuss this publicly yet. We will be sharing more info once we are ready.

Best Regards Soby Mathew

-----Original Message----- From: Chenxu Wang via TF-A tf-a@lists.trustedfirmware.org Sent: Thursday, March 21, 2024 9:23 AM To: tf-a@lists.trustedfirmware.org Subject: [TF-A] Question about RME-DA in TF-A/TF-RMM/FVP

Hi all,

I find that Arm has considered "device for realms" and purposed RME-DA since last year. This is not only a concept but also includes some SMMU hardware extensions (e.g., Realm Page MMIO and DPT). Unfortunately, I only find few contents related to RME-DA in the latest FVP user guide, and nothing in TF-A/TF-RMM.

Thus, can I ask

1. Does current FVP simulate the RME-DA?
2. Will TF-A/TF-RMM supports RME-DA recently?

Sincerely, WANG Chenxu -- TF-A mailing list -- tf-a@lists.trustedfirmware.org To unsubscribe send an email to tf-a-leave@lists.trustedfirmware.org