The guideline I would give to determine if you're vulnerable... Do you
have speculation, including the ability to speculate past a memory
operation, branch prediction, memory caches and high resolution timer
(ie, like a cycle timer). If you've got those, then the processor is
likely vulnerable to a spectre V1 style attack. Those are the basic
building blocks.
We have cycle timers and caches, but I'll have to ask AMD about the
other details.
There's no speculation or branch prediction, apparently.
I'll set it up to use speculation_safe_value_not_needed.
Andrew
