operations to the MD PCPU region. Change sysmap initialization to only
allocate KVA pages for CPUs that are actually present. As a minor
optimization, this also prevents false sharing between adjacent sysmap objects
since the pcpu struct is already cacheline-aligned.
While here, move pc_qmap_addr initialization for the BSP into
pmap_bootstrap(), which allows use of pmap_quick* functions during early boot.
Reviewed by: kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D8833
43aabbefd8