lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL

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>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e487493bbd47f0f84caed99f6c952bf6b3062413..f1d4e8f2131fe2c59a7210f336950b6aa0ab5a15 100644 (file)
--- 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 b06848a104e6940e128e63a5d3c8c7fb39ffaf8b..2aed31608b865a25590dd990c87ada7b47d26f3d 100644 (file)
--- 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.