Kees Cook d2aa1acad2 mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings ...

It may be useful to debug writes to the readonly sections of memory,
so provide a cmdline "rodata=off" to allow for this. This can be
expanded in the future to support "log" and "write" modes, but that
will need to be architecture-specific.

This also makes KDB software breakpoints more usable, as read-only
mappings can now be disabled on any kernel.

Suggested-by: H. Peter Anvin <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: David Brown <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: Emese Revfy <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mathias Krause <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: PaX Team <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: linux-arch <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>

2016-02-22 08:51:37 +01:00

..

.gitignore

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kdb_bp.c

mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings

2016-02-22 08:51:37 +01:00

kdb_bt.c

kernel/printk: use symbolic defines for console loglevels

2014-06-04 16:54:17 -07:00

kdb_cmds

kdb: cleanup unused variables missed in the original kdb merge

2011-08-01 13:23:58 -05:00

kdb_debugger.c

kgdb: timeout if secondary CPUs ignore the roundup

2014-11-11 09:31:53 -06:00

kdb_io.c

kdb: Const qualifier for kdb_getstr's prompt argument

2015-02-19 12:39:03 -06:00

kdb_keyboard.c

KDB: Fix usability issues relating to the 'enter' key.

2012-03-22 15:07:15 -05:00

kdb_main.c

module: use a structure to encapsulate layout.

2015-12-04 22:46:25 +01:00

kdb_private.h

kdb: Const qualifier for kdb_getstr's prompt argument

2015-02-19 12:39:03 -06:00

kdb_support.c

kdb: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:26 +08:00

Makefile

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