[RFC 1/2] RISC-V: KVM: enable ioeventfd capability and compile for risc-v

[Anup Patel]

Please change subject to:
"RISC-V: KVM: enable ioeventfd capability"

Also add 1-2 sentences of commit description.

On Fri, Jul 24, 2020 at 2:25 PM Yifei Jiang <jiangyifei at huawei.com> wrote:
>
> Signed-off-by: Yifei Jiang <jiangyifei at huawei.com>
> Signed-off-by: Mingwang Li <limingwang at huawei.com>
> ---
>  arch/riscv/kvm/Kconfig  | 2 ++
>  arch/riscv/kvm/Makefile | 2 +-
>  arch/riscv/kvm/vm.c     | 1 +
>  3 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/riscv/kvm/Kconfig b/arch/riscv/kvm/Kconfig
> index 2356dc52ebb3..95d85d893ab6 100644
> --- a/arch/riscv/kvm/Kconfig
> +++ b/arch/riscv/kvm/Kconfig
> @@ -4,6 +4,7 @@
>  #
>
>  source "virt/kvm/Kconfig"
> +source "drivers/vhost/Kconfig"
>
>  menuconfig VIRTUALIZATION
>         bool "Virtualization"
> @@ -26,6 +27,7 @@ config KVM
>         select KVM_MMIO
>         select HAVE_KVM_VCPU_ASYNC_IOCTL
>         select SRCU
> +       select HAVE_KVM_EVENTFD
>         help
>           Support hosting virtualized guest machines.
>
> diff --git a/arch/riscv/kvm/Makefile b/arch/riscv/kvm/Makefile
> index b56dc1650d2c..3ad46fe44900 100644
> --- a/arch/riscv/kvm/Makefile
> +++ b/arch/riscv/kvm/Makefile
> @@ -2,7 +2,7 @@
>  # Makefile for RISC-V KVM support
>  #
>
> -common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o)
> +common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o eventfd.o)
>
>  ccflags-y := -Ivirt/kvm -Iarch/riscv/kvm
>
> diff --git a/arch/riscv/kvm/vm.c b/arch/riscv/kvm/vm.c
> index 4f2498198cb5..473299e71f68 100644
> --- a/arch/riscv/kvm/vm.c
> +++ b/arch/riscv/kvm/vm.c
> @@ -52,6 +52,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
>         int r;
>
>         switch (ext) {
> +       case KVM_CAP_IOEVENTFD:
>         case KVM_CAP_DEVICE_CTRL:
>         case KVM_CAP_USER_MEMORY:
>         case KVM_CAP_SYNC_MMU:
> --
> 2.19.1
>
>

Regards,
Anup