linux: Disable XMON by default
This changes the kernel option so that xmon is not initialised by
default. It can be re-enabled for debugging by adding xmon=on to the
petitboot kernel's command line:
nvram -p ibm,skiboot --update-config bootargs="xmon=on"
mpe said:
> There is a class of bugs where having xmon is very helpful, as long as
> the person debugging knows how to drive it. So having it available is a
> good thing IMO.
>
> But I agree that by default it's more helpful for most people for the
> petitkernel to just oops and reboot. So I think this change is good.
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/configs/linux/skiroot_defconfig b/openpower/configs/linux/skiroot_defconfig
index 51d6ed2..1953966 100644
--- a/openpower/configs/linux/skiroot_defconfig
+++ b/openpower/configs/linux/skiroot_defconfig
@@ -295,7 +295,6 @@
# CONFIG_FTRACE is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
CONFIG_XMON=y
-CONFIG_XMON_DEFAULT=y
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_CRYPTO_ECHAINIV is not set
# CONFIG_CRYPTO_HW is not set