Currently APEI depends on x86 architecture. It is because of NMI hardware
error notification of GHES which is currently supported by x86 only.
However, many other APEI features can be still used perfectly by other
architectures.

This commit adds ARCH_HAS_ACPI_APEI_NMI which will be used in next patches
for NMI related code isolation in ghes.c file. Only NMI error notification
feature depends on x86 so let it be hard selected for x86 arch.

Signed-off-by: Tomasz Nowicki <[email protected]>
---
 arch/x86/Kconfig          |    1 +
 drivers/acpi/apei/Kconfig |    8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3fc9b12..e1dc819 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -24,6 +24,7 @@ config X86
        select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_MIGHT_HAVE_PC_SERIO
+       select ARCH_HAS_ACPI_APEI_NMI
        select HAVE_AOUT if X86_32
        select HAVE_UNSTABLE_SCHED_CLOCK
        select ARCH_SUPPORTS_NUMA_BALANCING if X86_64
diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
index c4dac71..9f6c3ec 100644
--- a/drivers/acpi/apei/Kconfig
+++ b/drivers/acpi/apei/Kconfig
@@ -3,7 +3,6 @@ config ACPI_APEI
        select MISC_FILESYSTEMS
        select PSTORE
        select UEFI_CPER
-       depends on X86
        help
          APEI allows to report errors (for example from the chipset)
          to the operating system. This improves NMI handling
@@ -26,6 +25,13 @@ config ACPI_APEI_GHES
          by firmware to produce more valuable hardware error
          information for Linux.
 
+config ARCH_HAS_ACPI_APEI_NMI
+       bool
+       help
+         Firmware first mode can use NMI notification mechanism to report 
errors
+         to operating system. This feature is currently supported by X86
+         architecture only.
+
 config ACPI_APEI_PCIEAER
        bool "APEI PCIe AER logging/recovering support"
        depends on ACPI_APEI && PCIEAER
-- 
1.7.9.5

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