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| author | Ingo Molnar <mingo@kernel.org> | 2014-05-07 13:15:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-05-07 13:15:46 +0200 |
| commit | 2fe5de9ce7d57498abc14b375cad2fcf8c3ee6cc (patch) | |
| tree | 9478e8cf470c1d5bdb2d89b57a7e35919ab95e72 /arch/arm64/Kconfig.debug | |
| parent | sched: Remove set_need_resched() (diff) | |
| parent | sched/numa: Initialize newidle balance stats in sd_numa_init() (diff) | |
| download | linux-2fe5de9ce7d57498abc14b375cad2fcf8c3ee6cc.tar.xz linux-2fe5de9ce7d57498abc14b375cad2fcf8c3ee6cc.zip | |
Merge branch 'sched/urgent' into sched/core, to avoid conflicts
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/Kconfig.debug')
| -rw-r--r-- | arch/arm64/Kconfig.debug | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug index 835c559786bd..d10ec334c93b 100644 --- a/arch/arm64/Kconfig.debug +++ b/arch/arm64/Kconfig.debug @@ -6,6 +6,20 @@ config FRAME_POINTER bool default y +config STRICT_DEVMEM + bool "Filter access to /dev/mem" + depends on MMU + help + If this option is disabled, 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. + + If this option is switched on, the /dev/mem file only allows + userspace access to memory mapped peripherals. + + If in doubt, say Y. + config EARLY_PRINTK bool "Early printk support" default y |