CVS commit: src/sys/arch/x86/x86

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Sat Jul  9 08:05:47 UTC 2016

Modified Files:
        src/sys/arch/x86/x86: pmap.c

Log Message:
When a user pmap is created, it is populated with the higher kernel
slots, which become accessible upon kernel entry (syscall, cpu switch,
or whatever). Put the NOX bit in the user recursive slot, so the whole
tree does not appear as executable in kernel mode.

This is already what is done in the kernel pmap.


To generate a diff of this commit:
cvs rdiff -u -r1.207 -r1.208 src/sys/arch/x86/x86/pmap.c

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