We don't need to assert we have Giant here. All machines that require the F00F workaround are UP and interrupts are disabled. Since we are single threaded, it's safe to allocate the IDT area with pmap_trm_alloc, interact with the current idt table and replace the IDT table without any Giant locking. Sponsored by: Netflix Reviewed by: kib, markj Differential Revision: https://reviews.freebsd.org/D31839 |
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