Yes, that is correct. As soon as Trusty can use indirect messages, we will switch.
On Mon, Feb 24, 2025, 4:23 PM Bertrand Marquis Bertrand.Marquis@arm.com wrote:
Hi Andrei,
Just a confirmation for my understanding: Having to use polling due to notification support missing is a temporary hack and mid-term you will switch to indirect messages right ?
Cheers Bertrand
On 19 Feb 2025, at 00:30, Andrei Homescu ah@immunant.com wrote:
Hi Viresh,
I'll try to respond to your first question: indirect messages require
FF-A notifications, and Trusty does not support those either.
The problem isn't Trusty specifically, but the layers between it and
Linux: the hypervisor and SPMC.
To be as specific as I can: Hafnium supports notifications, but others
don't.
For now, we'll need to work around this in virtio-msg-ffa with direct
messages and polling.
Andrei Homescu
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