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Use 4 levels of page tables when enabling the MMU. This will allow us to

Description

Use 4 levels of page tables when enabling the MMU. This will allow us to
boot on an SoC that places physical memory at an address past where three
levels of page tables can access in an identity mapping.

Submitted by: Wojciech Macek <wma@semihalf.com>,

Patrick Wildt <patrick@bitrig.org>

Differential Revision: https://reviews.freebsd.org/D3885 (partial)
Differential Revision: https://reviews.freebsd.org/D3744

Details

Provenance
andrewAuthored on
Parents
rS289580: Merge LinuxKPI changes from DragonflyBSD:
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