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    Subject[PATCHv6 01/11] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
    Date

    DEBUG_VIRTUAL currently depends on DEBUG_KERNEL && X86. arm64 is getting
    the same support. Rather than add a list of architectures, switch this
    to ARCH_HAS_DEBUG_VIRTUAL and let architectures select it as
    appropriate.

    Acked-by: Ingo Molnar <mingo@kernel.org>
    Reviewed-by: Mark Rutland <mark.rutland@arm.com>
    Tested-by: Mark Rutland <mark.rutland@arm.com>
    Suggested-by: Mark Rutland <mark.rutland@arm.com>
    Signed-off-by: Laura Abbott <labbott@redhat.com>
    ---
    arch/x86/Kconfig | 1 +
    lib/Kconfig.debug | 5 ++++-
    2 files changed, 5 insertions(+), 1 deletion(-)

    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index e487493..f1d4e8f 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -46,6 +46,7 @@ config X86
    select ARCH_CLOCKSOURCE_DATA
    select ARCH_DISCARD_MEMBLOCK
    select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
    + select ARCH_HAS_DEBUG_VIRTUAL
    select ARCH_HAS_DEVMEM_IS_ALLOWED
    select ARCH_HAS_ELF_RANDOMIZE
    select ARCH_HAS_FAST_MULTIPLIER
    diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
    index b06848a..2aed316 100644
    --- a/lib/Kconfig.debug
    +++ b/lib/Kconfig.debug
    @@ -622,9 +622,12 @@ config DEBUG_VM_PGFLAGS

    If unsure, say N.

    +config ARCH_HAS_DEBUG_VIRTUAL
    + bool
    +
    config DEBUG_VIRTUAL
    bool "Debug VM translations"
    - depends on DEBUG_KERNEL && X86
    + depends on DEBUG_KERNEL && ARCH_HAS_DEBUG_VIRTUAL
    help
    Enable some costly sanity checks in virtual to page code. This can
    catch mistakes with virt_to_page() and friends.
    --
    2.7.4
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