On Thu, Nov 19, 2020 at 3:37 PM Chang S. Bae <[email protected]> wrote: > > When a new task is created, the kernel copies all the states from the > parent. If the parent already has any dynamic user state in use, the new > task has to expand the XSAVE buffer to save them. Also, disable the > associated first-use fault.
This seems like a mistake. If init uses AMX for some misguided reason, ever task on the whole system will end up with AMX state allocated.
