[PATCH] x86: Add a Kconfig shortcut for a kvm-bootable kernel

[Borislav Petkov]

This is pretty useful for the case where people want to boot the
resulting kernel in qemu/kvm. Instead of going and searching for each
required option through the Kconfig maze, this single option should
simply enable all stuff which is required to boot the resulting kernel
in the guest.

Originally-by: Pekka Enberg <penberg@xxxxxxxxxx>
Originally-by: Sasha Levin <levinsasha928@xxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
 arch/x86/Kconfig | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 70c0f3da0476..3ca241172812 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -596,6 +596,43 @@ config SCHED_OMIT_FRAME_POINTER
 
 	  If in doubt, say "Y".
 
+config KVM_TEST_ENABLE
+	bool "Enable options for a kernel suitable for testing in kvm"
+	select NET
+	select NETDEVICES
+	select PCI
+	select BLOCK
+	select BLK_DEV
+	select NETWORK_FILESYSTEMS
+	select INET
+	select EXPERIMENTAL
+	select TTY
+	select SERIAL_8250
+	select SERIAL_8250_CONSOLE
+	select IP_PNP
+	select IP_PNP_DHCP
+	select BINFMT_ELF
+	select PCI_MSI
+	select HAVE_ARCH_KGDB
+	select DEBUG_KERNEL
+	select KGDB
+	select KGDB_SERIAL_CONSOLE
+	select VIRTUALIZATION
+	select VIRTIO
+	select VIRTIO_RING
+	select VIRTIO_PCI
+	select VIRTIO_BLK
+	select VIRTIO_CONSOLE
+	select VIRTIO_NET
+	select 9P_FS
+	select NET_9P
+	select NET_9P_VIRTIO
+	---help---
+	  Select stuff which is required for booting the kernel as a guest
+	  in qemu/kvm. This entails basic stuff like serial support, kgdb
+	  9p virtio and other basic functionality so that you can be able
+	  to have serial output from the guest, networking, etc.
+
 menuconfig PARAVIRT_GUEST
 	bool "Paravirtualized guest support"
 	---help---
-- 
1.8.2.135.g7b592fa

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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