Messages in this thread | | | Date | Mon, 23 Nov 2015 10:19:45 +0000 | From | Catalin Marinas <> | Subject | Re: [PATCH 1/2] arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug |
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On Sat, Nov 21, 2015 at 07:57:02PM -0800, Dan Williams wrote: > diff --git a/arch/arm64/Kconfig.debug b/arch/arm64/Kconfig.debug > index 04fb73b973f1..e13c4bf84d9e 100644 > --- a/arch/arm64/Kconfig.debug > +++ b/arch/arm64/Kconfig.debug > @@ -14,20 +14,6 @@ config ARM64_PTDUMP > kernel. > If in doubt, say "N" > > -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 PID_IN_CONTEXTIDR > bool "Write the current PID to the CONTEXTIDR register" > help
For arm64:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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