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-rw-r--r--arch/powerpc/Kconfig.debug32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 4e00cb0a5464..c59920920ddc 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -117,6 +117,14 @@ config XMON_DISASSEMBLY
to say Y here, unless you're building for a memory-constrained
system.
+config XMON_DEFAULT_RO_MODE
+ bool "Restrict xmon to read-only operations by default"
+ depends on XMON
+ default y
+ help
+ Operate xmon in read-only mode. The cmdline options 'xmon=rw' and
+ 'xmon=ro' override this default.
+
config DEBUGGER
bool
depends on KGDB || XMON
@@ -361,8 +369,32 @@ config PPC_PTDUMP
If you are unsure, say N.
+config PPC_DEBUG_WX
+ bool "Warn on W+X mappings at boot"
+ depends on PPC_PTDUMP
+ help
+ Generate a warning if any W+X mappings are found at boot.
+
+ This is useful for discovering cases where the kernel is leaving
+ W+X mappings after applying NX, as such mappings are a security risk.
+
+ Note that even if the check fails, your kernel is possibly
+ still fine, as W+X mappings are not a security hole in
+ themselves, what they do is that they make the exploitation
+ of other unfixed kernel bugs easier.
+
+ There is no runtime or memory usage effect of this option
+ once the kernel has booted up - it's a one time check.
+
+ If in doubt, say "Y".
+
config PPC_FAST_ENDIAN_SWITCH
bool "Deprecated fast endian-switch syscall"
depends on DEBUG_KERNEL && PPC_BOOK3S_64
help
If you're unsure what this is, say N.
+
+config KASAN_SHADOW_OFFSET
+ hex
+ depends on KASAN
+ default 0xe0000000