source "lib/Kconfig.debug"
-config NONPROMISC_DEVMEM
- bool "Filter access to /dev/mem"
+config PROMISC_DEVMEM
+ bool "Allow unlimited access to /dev/mem"
+ default y
help
- If this option is left off, you allow userspace access to all
+ If this option is left on, you allow userspace (root) access to all
of memory, including kernel and userspace memory. Accidental
access to this is obviously disastrous, but specific access can
be used by people debugging the kernel.
depends on DEBUG_KERNEL && PCI
select TRACING
select MMIOTRACE_HOOKS
- default y
help
Mmiotrace traces Memory Mapped I/O access and is meant for
debugging and reverse engineering. It is called from the ioremap