tree 0bd9c1794134d891678e3602ba78a6facec39d78
parent 85f8fffe3c2ab13f13526c46b5471fc22e98ccfe
author Carsten Otte <cotte@de.ibm.com> 1206467264 +0100
committer Avi Kivity <avi@qumranet.com> 1209286850 +0300

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 <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>