Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform updates from Ingo Molnar:
 "Two changes:

   - A Kconfig dependency fix/cleanup

   - Introduce the 'make kvmconfig' KVM configuration helper utility
     that turns the current .config into a KVM-bootable config.  Useful
     for debugging specific native kernel configs that have no KVM
     config options enabled on VM setups."

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform: Make X86_GOLDFISH depend on X86_EXTENDED_PLATFORM
  x86/platform: Add kvmconfig to the phony targets
  x86, platform, kvm, kconfig: Turn existing .config's into KVM-capable configs

3 files changed, 37 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 34d1db1e7f40..d98b665e6536 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -336,6 +336,7 @@ config X86_EXTENDED_PLATFORM
 
           If you enable this option then you'll be able to select support
           for the following (non-PC) 32 bit x86 platforms:
+                Goldfish (Android emulator)
                 AMD Elan
                 NUMAQ (IBM/Sequent)
                 RDC R-321x SoC
@@ -410,6 +411,7 @@ config X86_UV
 config X86_GOLDFISH
        bool "Goldfish (Virtual Platform)"
        depends on X86_32
+       depends on X86_EXTENDED_PLATFORM
        ---help---
          Enable support for the Goldfish virtual platform used primarily
          for Android development. Unless you are building for the Android
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 5c477260294f..07639c656fcd 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -220,6 +220,12 @@ 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 arch/x86/configs/kvm_guest.config
+        $(Q)yes "" | $(MAKE) oldconfig
+
 define archhelp
   echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
   echo  '  install      - Install kernel using'
@@ -233,4 +239,5 @@ 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/arch/x86/configs/kvm_guest.config b/arch/x86/configs/kvm_guest.config
new file mode 100644
index 000000000000..f9affcc3b9f1
--- /dev/null
+++ b/arch/x86/configs/kvm_guest.config
@@ -0,0 +1,28 @@
+CONFIG_NET=y
+CONFIG_NET_CORE=y
+CONFIG_NETDEVICES=y
+CONFIG_BLOCK=y
+CONFIG_BLK_DEV=y
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_INET=y
+CONFIG_TTY=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_BINFMT_ELF=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PARAVIRT=y
+CONFIG_KVM_GUEST=y
+CONFIG_VIRTIO=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_NET=y
+CONFIG_9P_FS=y
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y