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s390x: express dependencies with Kconfig

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Instead of hard-coding all config switches in the config file
default-configs/s390x-softmmu.mak, let's use the new Kconfig files
to express the necessary dependencies: The S390_CCW_VIRTIO config switch
for the "s390-ccw-virtio" machine now selects all non-optional devices.

And since we already have the VIRTIO_PCI and VIRTIO_MMIO config switches
for the other two virtio transports, this patch also introduces a new
config switch VIRTIO_CCW for the third, s390x-specific virtio transport,
so that all three virtio transports are now handled in the same way.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Thomas Huth 2019-01-29 10:42:14 +01:00 • committed by Paolo Bonzini
parent 82a230d5a3
commit 9e5c2056d1
4 changed files with 28 additions and 9 deletions
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4
hw/virtio/Kconfig
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@ -16,6 +16,10 @@ config VIRTIO_MMIO
bool
select VIRTIO
config VIRTIO_CCW
bool
select VIRTIO
config VIRTIO_BALLOON
bool
default y