CVS commit: src/sys/arch/aarch64/aarch64

["Ryo Shimizu" <ryo%netbsd.org@localhost>]

Module Name:    src
Committed By:   ryo
Date:           Sun May 29 16:39:22 UTC 2022

Modified Files:
        src/sys/arch/aarch64/aarch64: db_interface.c

Log Message:
Use the PAR register to check for accessibility in db_(read|write)_bytes().

db_(read|write)_bytes() uses the TTBR[01] at that time, so it must check
if it is accessible in context at that time, not pmap_extract()
which uses the struct pmap of the process.

- It also checks if the address is writable.
- db_write_bytes() also requires ARMV81_PAN control.


To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/aarch64/aarch64/db_interface.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.