Re: About the new ACPI HID for supporting ARM CoreSight ETE

Hi Junhao,

On 25/05/2023 12:56, hejunhao wrote:

Hi Suzuki & Anshuman.

I have some questions about the new ACPI HID for ARM CoreSight ETE

and need to get you help to confirm.

a）Has ARM distributed a new ACPI HID for ETE, or is it plans to do so?

If possible, can the new HID be provided in advance?

ETE can reuse the same HID as that of the ETM. The ACPI specification change for this is in BETA state, available here :

https://developer.arm.com/documentation/den0067/latest

The TRBE changes are also published with ACPI v6.5. The kernel support is not there yet. We plan to do that soon.

Kind regards

Suzuki