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(parent: 7ec86b6) | patch
Allow ddb and dtrace use the DMAP region on arm64
authorAndrew Turner <andrew@FreeBSD.org>
Tue, 21 Sep 2021 17:10:57 +0000 (17:10 +0000)
committerAndrew Turner <andrew@FreeBSD.org>
Fri, 1 Oct 2021 10:27:33 +0000 (11:27 +0100)
commit3d2533f5c29fbf6e63c5e408ba13c2294a7612fd
treedef4eba677accd7002a423f4332ad307db214938tree | snapshot
parent7ec86b66099124a9c2c88613507a10979cb8b191commit | diff
Allow ddb and dtrace use the DMAP region on arm64

When writing to memory on arm64 we may be trying to be accessing a
read-only page. In this case try to access via the DMAP region to
get a writable location.

While here simplify writing data in DDB and stop trashing the size as
it is passed into the cache handling functions.

Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32053
sys/arm64/arm64/db_interface.c diff | blob | history
sys/arm64/arm64/machdep.c diff | blob | history
sys/arm64/include/cpufunc.h diff | blob | history
sys/cddl/dev/fbt/aarch64/fbt_isa.c diff | blob | history
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