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-rw-r--r--arch/x86/Makefile7
-rw-r--r--scripts/kconfig/Makefile14
2 files changed, 14 insertions, 7 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index c65fd9650467..fcc74b7aabb0 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -247,12 +247,6 @@ archclean:
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=arch/x86/tools
-PHONY += kvmconfig
-kvmconfig:
- $(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
- $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config $(srctree)/arch/x86/configs/kvm_guest.config
- $(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
-
define archhelp
echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
echo ' install - Install kernel using'
@@ -266,5 +260,4 @@ define archhelp
echo ' bzdisk/fdimage*/isoimage also accept:'
echo ' FDARGS="..." arguments for the booted kernel'
echo ' FDINITRD=file initrd for the booted kernel'
- echo ' kvmconfig - Enable additional options for guest kernel support'
endef
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 9c4d2412fb72..8083b94b45ee 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -104,6 +104,19 @@ endif
%_defconfig: $(obj)/conf
$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
+configfiles=$(wildcard $(srctree)/kernel/configs/$(1).config $(srctree)/arch/$(SRCARCH)/configs/$(1).config)
+
+define mergeconfig
+$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
+$(if $(call configfiles,$(1)),, $(error No configuration exists for this target on this architecture))
+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config $(call configfiles,$(1))
+$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
+endef
+
+PHONY += kvmconfig
+kvmconfig:
+ $(call mergeconfig,kvm_guest)
+
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@@ -124,6 +137,7 @@ help:
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
@echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value'
+ @echo ' kvmconfig - Enable additional options for guest kernel support'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh