arm64: KVM: Kconfig integration

Finally plug KVM/arm64 into the config system, making it possible
to enable KVM support on AArch64 CPUs.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
new file mode 100644
index 000000000000..21e90820bd23
--- /dev/null
+++ b/arch/arm64/kvm/Kconfig
@@ -0,0 +1,51 @@
+#
+# KVM configuration
+#
+
+source "virt/kvm/Kconfig"
+
+menuconfig VIRTUALIZATION
+        bool "Virtualization"
+        ---help---
+          Say Y here to get to see options for using your Linux host to run
+          other operating systems inside virtual machines (guests).
+          This option alone does not add any kernel code.
+
+          If you say N, all options in this submenu will be skipped and
+          disabled.
+
+if VIRTUALIZATION
+
+config KVM
+        bool "Kernel-based Virtual Machine (KVM) support"
+        select MMU_NOTIFIER
+        select PREEMPT_NOTIFIERS
+        select ANON_INODES
+        select KVM_MMIO
+        select KVM_ARM_HOST
+        select KVM_ARM_VGIC
+        select KVM_ARM_TIMER
+        ---help---
+          Support hosting virtualized guest machines.
+
+          If unsure, say N.
+
+config KVM_ARM_HOST
+        bool
+        ---help---
+          Provides host support for ARM processors.
+
+config KVM_ARM_VGIC
+        bool
+        depends on KVM_ARM_HOST && OF
+        select HAVE_KVM_IRQCHIP
+        ---help---
+          Adds support for a hardware assisted, in-kernel GIC emulation.
+
+config KVM_ARM_TIMER
+        bool
+        depends on KVM_ARM_VGIC
+        ---help---
+          Adds support for the Architected Timers in virtual machines.
+
+endif # VIRTUALIZATION