diff options
| author | Laura Abbott | 2017-01-10 22:35:50 +0100 |
|---|---|---|
| committer | Will Deacon | 2017-01-12 16:05:39 +0100 |
| commit | ec6d06efb0bac6cd92846e42d1afe5b98b57e7c2 (patch) | |
| tree | a09267b07514bc3136eec83eb7a40ff4d22b2de9 /arch/arm64/Kconfig | |
| parent | arm64: Use __pa_symbol for kernel symbols (diff) | |
| download | kernel-qcow2-linux-ec6d06efb0bac6cd92846e42d1afe5b98b57e7c2.tar.gz kernel-qcow2-linux-ec6d06efb0bac6cd92846e42d1afe5b98b57e7c2.tar.xz kernel-qcow2-linux-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/Kconfig | 1 |
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 |