[RFC v4 01/13] KVM: arm/arm64: Enable the KVM-VFIO device

[Eric Auger]

From: Kim Phillips <kim.phillips at linaro.org>

The KVM-VFIO device is used by the QEMU VFIO device. It is used to
record the list of in-use VFIO groups so that KVM can manipulate
them. With this series, it will also be used to record the forwarded
IRQs.

Signed-off-by: Kim Phillips <kim.phillips at linaro.org>
Signed-off-by: Eric Auger <eric.auger at linaro.org>

---

v4 -> v5:
- reword the commit message to explain both usages of the KVM-VFIO
  device in QEMU
- squash both arm and arm64 enables
---
 arch/arm/kvm/Kconfig    | 1 +
 arch/arm/kvm/Makefile   | 2 +-
 arch/arm64/kvm/Kconfig  | 1 +
 arch/arm64/kvm/Makefile | 2 +-
 4 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 7db7df4..0ddb745 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -25,6 +25,7 @@ config KVM
 	select KVM_ARM_HOST
 	select SRCU
 	depends on ARM_VIRT_EXT && ARM_LPAE
+	select KVM_VFIO
 	select HAVE_KVM_EVENTFD
 	---help---
 	  Support hosting virtualized guest machines. You will also
diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
index 859db09..ea1fa76 100644
--- a/arch/arm/kvm/Makefile
+++ b/arch/arm/kvm/Makefile
@@ -15,7 +15,7 @@ AFLAGS_init.o := -Wa,-march=armv7-a$(plus_virt)
 AFLAGS_interrupts.o := -Wa,-march=armv7-a$(plus_virt)
 
 KVM := ../../../virt/kvm
-kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o
+kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o $(KVM)/vfio.o
 
 obj-y += kvm-arm.o init.o interrupts.o
 obj-y += arm.o handle_exit.o guest.o mmu.o emulate.o reset.o
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 0965056..b73fba8 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -27,6 +27,7 @@ config KVM
 	select KVM_ARM_VGIC
 	select KVM_ARM_TIMER
 	select SRCU
+	select KVM_VFIO
 	select HAVE_KVM_EVENTFD
 	---help---
 	  Support hosting virtualized guest machines.
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 2e6b827..81ed091 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -11,7 +11,7 @@ ARM=../../../arch/arm/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += kvm.o
 
-kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o
+kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o $(KVM)/vfio.o
 kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/arm.o $(ARM)/mmu.o $(ARM)/mmio.o
 kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/psci.o $(ARM)/perf.o
 
-- 
1.9.1