Ingo Molnar wrote:
* Zachary Amsden <[email protected]> wrote:
APM BIOS code has a protective wrapper that runs it only on CPU zero.
Thus, no need to set APM BIOS segments in the GDT for other CPUs.
hm, do we want (need) to have that CPU#0 assumption forever?
Can't hurt, and APM is largely obsolete because of ACPI, so I'm only
concerned with trimming and keeping adequate protection of the kernel
from APM code while maintaining correctness. I don't have a nice set of
old machines with enough wacky APM BIOSen to validate that unpinning the
CPU is ok.
Zach
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