KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM

Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h>
includes, not existing.  Rather than add a zillion <asm/kvm.h>s, export kvm.h
only if the arch actually supports it.

Signed-off-by: Avi Kivity <avi@qumranet.com>

3 files changed, 7 insertions, 3 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fb3eea3e38ee..d289cfcf92c4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -107,6 +107,7 @@ config ARCH_SUPPORTS_OPROFILE
         bool
         default y
 
+select HAVE_KVM
 
 config ZONE_DMA32
         bool
diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig
index 656920636cb2..c83e1c9b5129 100644
--- a/drivers/kvm/Kconfig
+++ b/drivers/kvm/Kconfig
@@ -1,9 +1,12 @@
 #
 # KVM configuration
 #
+config HAVE_KVM
+       bool
+
 menuconfig VIRTUALIZATION
         bool "Virtualization"
-        depends on X86
+        depends on HAVE_KVM || X86
         default y
         ---help---
           Say Y here to get to see options for using your Linux host to run other
@@ -16,7 +19,7 @@ if VIRTUALIZATION
 
 config KVM
         tristate "Kernel-based Virtual Machine (KVM) support"
-        depends on X86 && EXPERIMENTAL
+        depends on HAVE_KVM && EXPERIMENTAL
         select PREEMPT_NOTIFIERS
         select ANON_INODES
         ---help---
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index c263a69b5680..85b2482cc736 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -255,7 +255,7 @@ unifdef-y += kd.h
 unifdef-y += kernelcapi.h
 unifdef-y += kernel.h
 unifdef-y += keyboard.h
-unifdef-y += kvm.h
+unifdef-$(CONFIG_HAVE_KVM) += kvm.h
 unifdef-y += llc.h
 unifdef-y += loop.h
 unifdef-y += lp.h