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amd64 pmap: for LA57 move large map out of kernel pml4 slot

Description

amd64 pmap: for LA57 move large map out of kernel pml4 slot

and allow it to consume up to 32 pml5 slots (32 x 2048 TB), same as
DMAP.

Reviewed by: alc, markj
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D51364

Details

Provenance
kibAuthored on Jul 16 2025, 11:55 PM
Reviewer
alc
Differential Revision
D51364: LA57: move large map out of kernel pml4
Parents
rGcf07a18b58cf: amd64 pmap: make large map sizing depend on kva_layout instead of pml4 indexes
Branches
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Tags
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