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authorLaura Abbott <labbott@redhat.com>2017-01-10 13:35:50 -0800
committerWill Deacon <will.deacon@arm.com>2017-01-12 15:05:39 +0000
commitec6d06efb0bac6cd92846e42d1afe5b98b57e7c2 (patch)
treea09267b07514bc3136eec83eb7a40ff4d22b2de9 /arch/arm64/Kconfig
parentarm64: Use __pa_symbol for kernel symbols (diff)
downloadlinux-dev-ec6d06efb0bac6cd92846e42d1afe5b98b57e7c2.tar.xz
linux-dev-ec6d06efb0bac6cd92846e42d1afe5b98b57e7c2.zip
arm64: Add support for CONFIG_DEBUG_VIRTUAL
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 inclues callers using virt_to_phys on image addresses instead of __pa_symbol. As features such as CONFIG_VMAP_STACK get enabled for arm64, this becomes increasingly important. Add checks to catch bad virt_to_phys usage. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 111742126897..359bca239ba7 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,6 +6,7 @@ config ARM64
select ACPI_MCFG if ACPI
select ACPI_SPCR_TABLE if ACPI
select ARCH_CLOCKSOURCE_DATA
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
select ARCH_HAS_ELF_RANDOMIZE