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The Kconfig for CONFIG_STRICT_DEVMEM is missing despite being used in mmap.c. Add it. Signed-off-by: Laura Abbott <lauraa@codeaurora.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config FRAME_POINTER
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bool
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default y
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config STRICT_DEVMEM
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bool "Filter access to /dev/mem"
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depends on MMU
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help
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If this option is disabled, you allow userspace (root) access to all
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of memory, including kernel and userspace memory. Accidental
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access to this is obviously disastrous, but specific access can
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be used by people debugging the kernel.
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If this option is switched on, the /dev/mem file only allows
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userspace access to memory mapped peripherals.
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If in doubt, say Y.
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config EARLY_PRINTK
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bool "Early printk support"
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default y
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help
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Say Y here if you want to have an early console using the
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earlyprintk=<name>[,<addr>][,<options>] kernel parameter. It
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is assumed that the early console device has been initialised
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by the boot loader prior to starting the Linux kernel.
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config PID_IN_CONTEXTIDR
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bool "Write the current PID to the CONTEXTIDR register"
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help
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Enabling this option causes the kernel to write the current PID to
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the CONTEXTIDR register, at the expense of some additional
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instructions during context switch. Say Y here only if you are
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planning to use hardware trace tools with this kernel.
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endmenu
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