s390: KVM guest: detect when running on kvm
This patch adds functionality to detect if the kernel runs under the KVM
hypervisor. A macro MACHINE_IS_KVM is exported for device drivers. This
allows drivers to skip device detection if the systems runs non-virtualized.
We also define a preferred console to avoid having the ttyS0, which is a line
mode only console.
Signed-off-by: Christian Borntraeger <[email protected]>
Acked-by: Martin Schwidefsky <[email protected]>
Signed-off-by: Carsten Otte <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
4 files changed
