Paolo Bonzini <pbonz...@redhat.com> writes:

> For ARM targets, boards that require TCG are already using "default y".
> Switch ARM_VIRT to the same selection mechanism.
>
> No changes to generated config-devices.mak file.
>
> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
> ---
>  configs/devices/arm-softmmu/default.mak | 3 ++-
>  hw/arm/Kconfig                          | 2 ++
>  2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/configs/devices/arm-softmmu/default.mak 
> b/configs/devices/arm-softmmu/default.mak
> index c1cfb3bcf75..31f77c20269 100644
> --- a/configs/devices/arm-softmmu/default.mak
> +++ b/configs/devices/arm-softmmu/default.mak
> @@ -5,7 +5,8 @@
>  # CONFIG_PCI_DEVICES=n
>  # CONFIG_TEST_DEVICES=n
>  
> -CONFIG_ARM_VIRT=y
> +# Boards are selected by default, uncomment to keep out of the build.
> +# CONFIG_ARM_VIRT=n
>  
>  # These are selected by default when TCG is enabled, uncomment them to
>  # keep out of the build.
> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
> index 893a7bff66b..1e7cd01087f 100644
> --- a/hw/arm/Kconfig
> +++ b/hw/arm/Kconfig
> @@ -1,5 +1,7 @@
>  config ARM_VIRT
>      bool
> +    default y
> +    depends on ARM
>      imply PCI_DEVICES

We lose pci.c when building --without-default-devices:

$ arch
aarch64
$ ../configure --target-list=aarch64-softmmu,arm-softmmu
--disable-linux-user --without-default-devices
$ make
...
libqemu-aarch64-softmmu.fa.p/target_arm_kvm.c.o: in function 
`kvm_arch_fixup_msi_route':
../target/arm/kvm.c:1548: undefined reference to 
`pci_device_iommu_address_space'

>      imply TEST_DEVICES
>      imply VFIO_AMD_XGBE

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