ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL

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x86 has an option: CONFIG_DEBUG_VIRTUAL to do additional checks on
virt_to_phys calls. The goal is to catch users who are calling
virt_to_phys on non-linear addresses immediately. This includes caller
using __virt_to_phys() on image addresses instead of __pa_symbol(). This
is a generally useful debug feature to spot bad code (particulary in
drivers).

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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Florian Fainelli 2017-01-15 03:59:00 +01:00 • committed by Russell King

parent 399f157afd

commit e377cd8221

4 changed files with 72 additions and 2 deletions

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1

arch/arm/Kconfig

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15

arch/arm/include/asm/memory.h

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1

arch/arm/mm/Makefile

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57

arch/arm/mm/physaddr.c

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