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 <pbonzini@redhat.com>
---
 configs/devices/arm-softmmu/default.mak | 3 ++-
 .gitlab-ci.d/buildtest.yml              | 1 +
 hw/arm/Kconfig                          | 2 ++
 3 files changed, 5 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/.gitlab-ci.d/buildtest.yml b/.gitlab-ci.d/buildtest.yml
index c6c9c242c5c..3a03cdb0151 100644
--- a/.gitlab-ci.d/buildtest.yml
+++ b/.gitlab-ci.d/buildtest.yml
@@ -648,6 +648,7 @@ build-tci:
     - make check-tcg
 
 # Check our reduced build configurations
+# requires libfdt: aarch64, arm
 build-without-defaults:
   extends: .native_build_job_template
   needs:
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index fe1f9643bd9..98c264ed219 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
     imply TEST_DEVICES
     imply VFIO_AMD_XGBE
-- 
2.44.0